Commit graph

989161 commits

Author SHA1 Message Date
Matthieu Baerts
34a02011c5 hsr: ratelimit only when errors are printed
commit 1b0120e4db upstream.

Recently, when automatically merging -net and net-next in MPTCP devel
tree, our CI reported [1] a conflict in hsr, the same as the one
reported by Stephen in netdev [2].

When looking at the conflict, I noticed it is in fact the v1 [3] that
has been applied in -net and the v2 [4] in net-next. Maybe the v1 was
applied by accident.

As mentioned by Jakub Kicinski [5], the new condition makes more sense
before the net_ratelimit(), not to update net_ratelimit's state which is
unnecessary if we're not going to print either way.

Here, this modification applies the v2 but in -net.

Link: https://github.com/multipath-tcp/mptcp_net-next/actions/runs/4423171069 [1]
Link: https://lore.kernel.org/netdev/20230315100914.53fc1760@canb.auug.org.au/ [2]
Link: https://lore.kernel.org/netdev/20230307133229.127442-1-koverskeid@gmail.com/ [3]
Link: https://lore.kernel.org/netdev/20230309092302.179586-1-koverskeid@gmail.com/ [4]
Link: https://lore.kernel.org/netdev/20230308232001.2fb62013@kernel.org/ [5]
Fixes: 28e8cabe80 ("net: hsr: Don't log netdev_err message on unknown prp dst node")
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Link: https://lore.kernel.org/r/20230315-net-20230315-hsr_framereg-ratelimit-v1-1-61d2ef176d11@tessares.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:52 +02:00
Andreas Gruenbacher
7c414f6f06 gfs2: Always check inode size of inline inodes
commit 70376c7ff3 upstream.

Check if the inode size of stuffed (inline) inodes is within the allowed
range when reading inodes from disk (gfs2_dinode_in()).  This prevents
us from on-disk corruption.

The two checks in stuffed_readpage() and gfs2_unstuffer_page() that just
truncate inline data to the maximum allowed size don't actually make
sense, and they can be removed now as well.

Reported-by: syzbot+7bb81dfa9cda07d9cd9d@syzkaller.appspotmail.com
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
[pchelkin@ispras.ru: adjust the inode variable inside gfs2_dinode_in with
the format used before upstream commit 7db354444a ("gfs2: Cosmetic
gfs2_dinode_{in,out} cleanup")]
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:52 +02:00
Ye Bin
3392d67af0 ext4: fix kernel BUG in 'ext4_write_inline_data_end()'
commit 5c099c4fdc upstream.

Syzbot report follow issue:
------------[ cut here ]------------
kernel BUG at fs/ext4/inline.c:227!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3629 Comm: syz-executor212 Not tainted 6.1.0-rc5-syzkaller-00018-g59d0d52c30d4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:ext4_write_inline_data+0x344/0x3e0 fs/ext4/inline.c:227
RSP: 0018:ffffc90003b3f368 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880704e16c0 RCX: 0000000000000000
RDX: ffff888021763a80 RSI: ffffffff821e31a4 RDI: 0000000000000006
RBP: 000000000006818e R08: 0000000000000006 R09: 0000000000068199
R10: 0000000000000079 R11: 0000000000000000 R12: 000000000000000b
R13: 0000000000068199 R14: ffffc90003b3f408 R15: ffff8880704e1c82
FS:  000055555723e3c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffe8ac9080 CR3: 0000000079f81000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 ext4_write_inline_data_end+0x2a3/0x12f0 fs/ext4/inline.c:768
 ext4_write_end+0x242/0xdd0 fs/ext4/inode.c:1313
 ext4_da_write_end+0x3ed/0xa30 fs/ext4/inode.c:3063
 generic_perform_write+0x316/0x570 mm/filemap.c:3764
 ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
 ext4_file_write_iter+0x8bc/0x16e0 fs/ext4/file.c:700
 call_write_iter include/linux/fs.h:2191 [inline]
 do_iter_readv_writev+0x20b/0x3b0 fs/read_write.c:735
 do_iter_write+0x182/0x700 fs/read_write.c:861
 vfs_iter_write+0x74/0xa0 fs/read_write.c:902
 iter_file_splice_write+0x745/0xc90 fs/splice.c:686
 do_splice_from fs/splice.c:764 [inline]
 direct_splice_actor+0x114/0x180 fs/splice.c:931
 splice_direct_to_actor+0x335/0x8a0 fs/splice.c:886
 do_splice_direct+0x1ab/0x280 fs/splice.c:974
 do_sendfile+0xb19/0x1270 fs/read_write.c:1255
 __do_sys_sendfile64 fs/read_write.c:1323 [inline]
 __se_sys_sendfile64 fs/read_write.c:1309 [inline]
 __x64_sys_sendfile64+0x1d0/0x210 fs/read_write.c:1309
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
---[ end trace 0000000000000000 ]---

Above issue may happens as follows:
ext4_da_write_begin
  ext4_da_write_inline_data_begin
    ext4_da_convert_inline_data_to_extent
      ext4_clear_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);
ext4_da_write_end

ext4_run_li_request
  ext4_mb_prefetch
    ext4_read_block_bitmap_nowait
      ext4_validate_block_bitmap
        ext4_mark_group_bitmap_corrupted(sb, block_group, EXT4_GROUP_INFO_BBITMAP_CORRUPT)
	 percpu_counter_sub(&sbi->s_freeclusters_counter,grp->bb_free);
	  -> sbi->s_freeclusters_counter become zero
ext4_da_write_begin
  if (ext4_nonda_switch(inode->i_sb)) -> As freeclusters_counter is zero will return true
    *fsdata = (void *)FALL_BACK_TO_NONDELALLOC;
    ext4_write_begin
ext4_da_write_end
  if (write_mode == FALL_BACK_TO_NONDELALLOC)
    ext4_write_end
      if (inline_data)
        ext4_write_inline_data_end
	  ext4_write_inline_data
	    BUG_ON(pos + len > EXT4_I(inode)->i_inline_size);
           -> As inode is already convert to extent, so 'pos + len' > inline_size
	   -> then trigger BUG.

To solve this issue, instead of checking ext4_has_inline_data() which
is only cleared after data has been written back, check the
EXT4_STATE_MAY_INLINE_DATA flag in ext4_write_end().

Fixes: f19d5870cb ("ext4: add normal write support for inline data")
Reported-by: syzbot+4faa160fa96bfba639f8@syzkaller.appspotmail.com
Reported-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Link: https://lore.kernel.org/r/20221206144134.1919987-1-yebin@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
[ta: Fix conflict in if expression and use the local variable inline_data
as it is initialized with ext4_has_inline_data(inode) anyway.]
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:52 +02:00
Andrii Nakryiko
b4781477f3 libbpf: Fix btf_dump's packed struct determination
[ Upstream commit 4fb877aaa1 ]

Fix bug in btf_dump's logic of determining if a given struct type is
packed or not. The notion of "natural alignment" is not needed and is
even harmful in this case, so drop it altogether. The biggest difference
in btf_is_struct_packed() compared to its original implementation is
that we don't really use btf__align_of() to determine overall alignment
of a struct type (because it could be 1 for both packed and non-packed
struct, depending on specifci field definitions), and just use field's
actual alignment to calculate whether any field is requiring packing or
struct's size overall necessitates packing.

Add two simple test cases that demonstrate the difference this change
would make.

Fixes: ea2ce1ba99 ("libbpf: Fix BTF-to-C converter's padding logic")
Reported-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20221215183605.4149488-1-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:52 +02:00
Andrii Nakryiko
7ad30ad8c6 selftests/bpf: Add few corner cases to test padding handling of btf_dump
[ Upstream commit b148c8b9b9 ]

Add few hand-crafted cases and few randomized cases found using script
from [0] that tests btf_dump's padding logic.

  [0] https://lore.kernel.org/bpf/85f83c333f5355c8ac026f835b18d15060725fcb.camel@ericsson.com/

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20221212211505.558851-7-andrii@kernel.org
Stable-dep-of: 4fb877aaa1 ("libbpf: Fix btf_dump's packed struct determination")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:52 +02:00
Andrii Nakryiko
e5a16bcb13 libbpf: Fix BTF-to-C converter's padding logic
[ Upstream commit ea2ce1ba99 ]

Turns out that btf_dump API doesn't handle a bunch of tricky corner
cases, as reported by Per, and further discovered using his testing
Python script ([0]).

This patch revamps btf_dump's padding logic significantly, making it
more correct and also avoiding unnecessary explicit padding, where
compiler would pad naturally. This overall topic turned out to be very
tricky and subtle, there are lots of subtle corner cases. The comments
in the code tries to give some clues, but comments themselves are
supposed to be paired with good understanding of C alignment and padding
rules. Plus some experimentation to figure out subtle things like
whether `long :0;` means that struct is now forced to be long-aligned
(no, it's not, turns out).

Anyways, Per's script, while not completely correct in some known
situations, doesn't show any obvious cases where this logic breaks, so
this is a nice improvement over the previous state of this logic.

Some selftests had to be adjusted to accommodate better use of natural
alignment rules, eliminating some unnecessary padding, or changing it to
`type: 0;` alignment markers.

Note also that for when we are in between bitfields, we emit explicit
bit size, while otherwise we use `: 0`, this feels much more natural in
practice.

Next patch will add few more test cases, found through randomized Per's
script.

  [0] https://lore.kernel.org/bpf/85f83c333f5355c8ac026f835b18d15060725fcb.camel@ericsson.com/

Reported-by: Per Sundström XP <per.xp.sundstrom@ericsson.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20221212211505.558851-6-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:52 +02:00
Eduard Zingerman
b9f7422dd9 selftests/bpf: Test btf dump for struct with padding only fields
[ Upstream commit d503f1176b ]

Structures with zero regular fields but some padding constitute a
special case in btf_dump.c:btf_dump_emit_struct_def with regards to
newline before closing '}'.

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20221001104425.415768-2-eddyz87@gmail.com
Stable-dep-of: ea2ce1ba99 ("libbpf: Fix BTF-to-C converter's padding logic")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:52 +02:00
Damien Le Moal
f1c17475a9 zonefs: Fix error message in zonefs_file_dio_append()
commit 88b170088a upstream.

Since the expected write location in a sequential file is always at the
end of the file (append write), when an invalid write append location is
detected in zonefs_file_dio_append(), print the invalid written location
instead of the expected write location.

Fixes: a608da3bd7 ("zonefs: Detect append writes at invalid locations")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:51 +02:00
Anand Jain
b51e442295 btrfs: scan device in non-exclusive mode
commit 50d281fc43 upstream.

This fixes mkfs/mount/check failures due to race with systemd-udevd
scan.

During the device scan initiated by systemd-udevd, other user space
EXCL operations such as mkfs, mount, or check may get blocked and result
in a "Device or resource busy" error. This is because the device
scan process opens the device with the EXCL flag in the kernel.

Two reports were received:

 - btrfs/179 test case, where the fsck command failed with the -EBUSY
   error

 - LTP pwritev03 test case, where mkfs.vfs failed with
   the -EBUSY error, when mkfs.vfs tried to overwrite old btrfs filesystem
   on the device.

In both cases, fsck and mkfs (respectively) were racing with a
systemd-udevd device scan, and systemd-udevd won, resulting in the
-EBUSY error for fsck and mkfs.

Reproducing the problem has been difficult because there is a very
small window during which these userspace threads can race to
acquire the exclusive device open. Even on the system where the problem
was observed, the problem occurrences were anywhere between 10 to 400
iterations and chances of reproducing decreases with debug printk()s.

However, an exclusive device open is unnecessary for the scan process,
as there are no write operations on the device during scan. Furthermore,
during the mount process, the superblock is re-read in the below
function call chain:

  btrfs_mount_root
   btrfs_open_devices
    open_fs_devices
     btrfs_open_one_device
       btrfs_get_bdev_and_sb

So, to fix this issue, removes the FMODE_EXCL flag from the scan
operation, and add a comment.

The case where mkfs may still write to the device and a scan is running,
the btrfs signature is not written at that time so scan will not
recognize such device.

Reported-by: Sherry Yang <sherry.yang@oracle.com>
Reported-by: kernel test robot <oliver.sang@intel.com>
Link: https://lore.kernel.org/oe-lkp/202303170839.fdf23068-oliver.sang@intel.com
CC: stable@vger.kernel.org # 5.4+
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:51 +02:00
Heiko Carstens
3eeff8d26c s390/uaccess: add missing earlyclobber annotations to __clear_user()
commit 89aba4c26f upstream.

Add missing earlyclobber annotation to size, to, and tmp2 operands of the
__clear_user() inline assembly since they are modified or written to before
the last usage of all input operands. This can lead to incorrect register
allocation for the inline assembly.

Fixes: 6c2a9e6df6 ("[S390] Use alternative user-copy operations for new hardware.")
Reported-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/all/20230321122514.1743889-3-mark.rutland@arm.com/
Cc: stable@vger.kernel.org
Reviewed-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:51 +02:00
Fangzhi Zuo
7051d51f12 drm/amd/display: Add DSC Support for Synaptics Cascaded MST Hub
commit f4f3b7dedb upstream.

Traditional synaptics hub has one MST branch device without virtual dpcd.
Synaptics cascaded hub has two chained MST branch devices. DSC decoding
is performed via root MST branch device, instead of the second MST branch
device.

Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:51 +02:00
Lucas Stach
79815326a5 drm/etnaviv: fix reference leak when mmaping imported buffer
commit 963b2e8c42 upstream.

drm_gem_prime_mmap() takes a reference on the GEM object, but before that
drm_gem_mmap_obj() already takes a reference, which will be leaked as only
one reference is dropped when the mapping is closed. Drop the extra
reference when dma_buf_mmap() succeeds.

Cc: stable@vger.kernel.org
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:51 +02:00
Douglas Raillard
a484f8bec8 rcu: Fix rcu_torture_read ftrace event
commit d18a04157f upstream.

Fix the rcutorturename field so that its size is correctly reported in
the text format embedded in trace.dat files. As it stands, it is
reported as being of size 1:

    field:char rcutorturename[8];   offset:8;       size:1; signed:0;

Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Cc: stable@vger.kernel.org
Fixes: 04ae87a520 ("ftrace: Rework event_create_dir()")
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
[ boqun: Add "Cc" and "Fixes" tags per Steven ]
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:51 +02:00
Max Filippov
08bfd05987 xtensa: fix KASAN report for show_stack
commit 1d3b7a788c upstream.

show_stack dumps raw stack contents which may trigger an unnecessary
KASAN report. Fix it by copying stack contents to a temporary buffer
with __memcpy and then printing that buffer instead of passing stack
pointer directly to the print_hex_dump.

Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:51 +02:00
huangwenhui
8ada1b5c8b ALSA: hda/realtek: Add quirk for Lenovo ZhaoYang CF4620Z
commit 52aad39385 upstream.

Fix headset microphone detection on Lenovo ZhaoYang CF4620Z.

[ adjusted to be applicable to the latest tree -- tiwai ]

Signed-off-by: huangwenhui <huangwenhuia@uniontech.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230328074644.30142-1-huangwenhuia@uniontech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:51 +02:00
Takashi Iwai
3b6992bdf0 ALSA: usb-audio: Fix regression on detection of Roland VS-100
commit fa4e7a6fa1 upstream.

It's been reported that the recent kernel can't probe the PCM devices
on Roland VS-100 properly, and it turned out to be a regression by the
recent addition of the bit shift range check for the format bits.
In the old code, we just did bit-shift and it resulted in zero, which
is then corrected to the standard PCM format, while the new code
explicitly returns an error in such a case.

For addressing the regression, relax the check and fallback to the
standard PCM type (with the info output).

Fixes: 43d5ca88df ("ALSA: usb-audio: Fix potential out-of-bounds shift")
Cc: <stable@vger.kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217084
Link: https://lore.kernel.org/r/20230324075005.19403-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:50 +02:00
Takashi Iwai
0044721f4f ALSA: hda/conexant: Partial revert of a quirk for Lenovo
commit b871cb971c upstream.

The recent commit f83bb25924 ("ALSA: hda/conexant: Add quirk for
LENOVO 20149 Notebook model") introduced a quirk for the device with
17aa:3977, but this caused a regression on another model (Lenovo
Ideadpad U31) with the very same PCI SSID.  And, through skimming over
the net, it seems that this PCI SSID is used for multiple different
models, so it's no good idea to apply the quirk with the SSID.

Although we may take a different ID check (e.g. the codec SSID instead
of the PCI SSID), unfortunately, the original patch author couldn't
identify the hardware details any longer as the machine was returned,
and we can't develop the further proper fix.

In this patch, instead, we partially revert the change so that the
quirk won't be applied as default for addressing the regression.
Meanwhile, the quirk function itself is kept, and it's now made to be
applicable via the explicit model=lenovo-20149 option.

Fixes: f83bb25924 ("ALSA: hda/conexant: Add quirk for LENOVO 20149 Notebook model")
Reported-by: Jetro Jormalainen <jje-lxkl@jetro.fi>
Link: https://lore.kernel.org/r/20230308215009.4d3e58a6@mopti
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230320140954.31154-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:50 +02:00
Trond Myklebust
3d328a17c8 NFSv4: Fix hangs when recovering open state after a server reboot
commit 6165a16a5a upstream.

When we're using a cached open stateid or a delegation in order to avoid
sending a CLAIM_PREVIOUS open RPC call to the server, we don't have a
new open stateid to present to update_open_stateid().
Instead rely on nfs4_try_open_cached(), just as if we were doing a
normal open.

Fixes: d2bfda2e7a ("NFSv4: don't reprocess cached open CLAIM_PREVIOUS")
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:50 +02:00
Jens Axboe
80a4200d51 powerpc: Don't try to copy PPR for task with NULL pt_regs
commit fd72761894 upstream.

powerpc sets up PF_KTHREAD and PF_IO_WORKER with a NULL pt_regs, which
from my (arguably very short) checking is not commonly done for other
archs. This is fine, except when PF_IO_WORKER's have been created and
the task does something that causes a coredump to be generated. Then we
get this crash:

  Kernel attempted to read user page (160) - exploit attempt? (uid: 1000)
  BUG: Kernel NULL pointer dereference on read at 0x00000160
  Faulting instruction address: 0xc0000000000c3a60
  Oops: Kernel access of bad area, sig: 11 [#1]
  LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=32 NUMA pSeries
  Modules linked in: bochs drm_vram_helper drm_kms_helper xts binfmt_misc ecb ctr syscopyarea sysfillrect cbc sysimgblt drm_ttm_helper aes_generic ttm sg libaes evdev joydev virtio_balloon vmx_crypto gf128mul drm dm_mod fuse loop configfs drm_panel_orientation_quirks ip_tables x_tables autofs4 hid_generic usbhid hid xhci_pci xhci_hcd usbcore usb_common sd_mod
  CPU: 1 PID: 1982 Comm: ppc-crash Not tainted 6.3.0-rc2+ #88
  Hardware name: IBM pSeries (emulated by qemu) POWER9 (raw) 0x4e1202 0xf000005 of:SLOF,HEAD hv:linux,kvm pSeries
  NIP:  c0000000000c3a60 LR: c000000000039944 CTR: c0000000000398e0
  REGS: c0000000041833b0 TRAP: 0300   Not tainted  (6.3.0-rc2+)
  MSR:  800000000280b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE>  CR: 88082828  XER: 200400f8
  ...
  NIP memcpy_power7+0x200/0x7d0
  LR  ppr_get+0x64/0xb0
  Call Trace:
    ppr_get+0x40/0xb0 (unreliable)
    __regset_get+0x180/0x1f0
    regset_get_alloc+0x64/0x90
    elf_core_dump+0xb98/0x1b60
    do_coredump+0x1c34/0x24a0
    get_signal+0x71c/0x1410
    do_notify_resume+0x140/0x6f0
    interrupt_exit_user_prepare_main+0x29c/0x320
    interrupt_exit_user_prepare+0x6c/0xa0
    interrupt_return_srr_user+0x8/0x138

Because ppr_get() is trying to copy from a PF_IO_WORKER with a NULL
pt_regs.

Check for a valid pt_regs in both ppc_get/ppr_set, and return an error
if not set. The actual error value doesn't seem to be important here, so
just pick -EINVAL.

Fixes: fa439810cc ("powerpc/ptrace: Enable support for NT_PPPC_TAR, NT_PPC_PPR, NT_PPC_DSCR")
Cc: stable@vger.kernel.org # v4.8+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
[mpe: Trim oops in change log, add Fixes & Cc stable]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/d9f63344-fe7c-56ae-b420-4a1a04a2ae4c@kernel.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:50 +02:00
Johan Hovold
12c2612e18 pinctrl: at91-pio4: fix domain name assignment
commit 7bb97e360a upstream.

Since commit d59f6617ee ("genirq: Allow fwnode to carry name
information only") an IRQ domain is always given a name during
allocation (e.g. used for the debugfs entry).

Drop the no longer valid name assignment, which would lead to an attempt
to free a string constant when removing the domain on late probe
failures (e.g. probe deferral).

Fixes: d59f6617ee ("genirq: Allow fwnode to carry name information only")
Cc: stable@vger.kernel.org	# 4.13
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Tested-by: Claudiu Beznea <claudiu.beznea@microchip.com> # on SAMA7G5
Link: https://lore.kernel.org/r/20230224130828.27985-1-johan+linaro@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:50 +02:00
Kornel Dulęba
25065ed83b pinctrl: amd: Disable and mask interrupts on resume
commit b26cd9325b upstream.

This fixes a similar problem to the one observed in:
commit 4e5a04be88 ("pinctrl: amd: disable and mask interrupts on probe").

On some systems, during suspend/resume cycle firmware leaves
an interrupt enabled on a pin that is not used by the kernel.
This confuses the AMD pinctrl driver and causes spurious interrupts.

The driver already has logic to detect if a pin is used by the kernel.
Leverage it to re-initialize interrupt fields of a pin only if it's not
used by us.

Cc: stable@vger.kernel.org
Fixes: dbad75dd1f ("pinctrl: add AMD GPIO driver support.")
Signed-off-by: Kornel Dulęba <korneld@chromium.org>
Link: https://lore.kernel.org/r/20230320093259.845178-1-korneld@chromium.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:50 +02:00
Josua Mayer
fbf3fe7f7b net: phy: dp83869: fix default value for tx-/rx-internal-delay
commit 82e2c39f9e upstream.

dp83869 internally uses a look-up table for mapping supported delays in
nanoseconds to register values.
When specific delays are defined in device-tree, phy_get_internal_delay
does the lookup automatically returning an index.

The default case wrongly assigns the nanoseconds value from the lookup
table, resulting in numeric value 2000 applied to delay configuration
register, rather than the expected index values 0-7 (7 for 2000).
Ultimately this issue broke RX for 1Gbps links.

Fix default delay configuration by assigning the intended index value
directly.

Cc: stable@vger.kernel.org
Fixes: 736b25afe2 ("net: dp83869: Add RGMII internal delay configuration")
Co-developed-by: Yazan Shhady <yazan.shhady@solid-run.com>
Signed-off-by: Yazan Shhady <yazan.shhady@solid-run.com>
Signed-off-by: Josua Mayer <josua@solid-run.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230323102536.31988-1-josua@solid-run.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:50 +02:00
Juergen Gross
b3d7a4478c xen/netback: don't do grant copy across page boundary
commit 05310f31ca upstream.

Fix xenvif_get_requests() not to do grant copy operations across local
page boundaries. This requires to double the maximum number of copy
operations per queue, as each copy could now be split into 2.

Make sure that struct xenvif_tx_cb doesn't grow too large.

Cc: stable@vger.kernel.org
Fixes: ad7f402ae4 ("xen/netback: Ensure protocol headers don't fall in the non-linear area")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:50 +02:00
Filipe Manana
5f63470343 btrfs: fix race between quota disable and quota assign ioctls
commit 2f1a6be12a upstream.

The quota assign ioctl can currently run in parallel with a quota disable
ioctl call. The assign ioctl uses the quota root, while the disable ioctl
frees that root, and therefore we can have a use-after-free triggered in
the assign ioctl, leading to a trace like the following when KASAN is
enabled:

  [672.723][T736] BUG: KASAN: slab-use-after-free in btrfs_search_slot+0x2962/0x2db0
  [672.723][T736] Read of size 8 at addr ffff888022ec0208 by task btrfs_search_sl/27736
  [672.724][T736]
  [672.725][T736] CPU: 1 PID: 27736 Comm: btrfs_search_sl Not tainted 6.3.0-rc3 #37
  [672.723][T736] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
  [672.727][T736] Call Trace:
  [672.728][T736]  <TASK>
  [672.728][T736]  dump_stack_lvl+0xd9/0x150
  [672.725][T736]  print_report+0xc1/0x5e0
  [672.720][T736]  ? __virt_addr_valid+0x61/0x2e0
  [672.727][T736]  ? __phys_addr+0xc9/0x150
  [672.725][T736]  ? btrfs_search_slot+0x2962/0x2db0
  [672.722][T736]  kasan_report+0xc0/0xf0
  [672.729][T736]  ? btrfs_search_slot+0x2962/0x2db0
  [672.724][T736]  btrfs_search_slot+0x2962/0x2db0
  [672.723][T736]  ? fs_reclaim_acquire+0xba/0x160
  [672.722][T736]  ? split_leaf+0x13d0/0x13d0
  [672.726][T736]  ? rcu_is_watching+0x12/0xb0
  [672.723][T736]  ? kmem_cache_alloc+0x338/0x3c0
  [672.722][T736]  update_qgroup_status_item+0xf7/0x320
  [672.724][T736]  ? add_qgroup_rb+0x3d0/0x3d0
  [672.739][T736]  ? do_raw_spin_lock+0x12d/0x2b0
  [672.730][T736]  ? spin_bug+0x1d0/0x1d0
  [672.737][T736]  btrfs_run_qgroups+0x5de/0x840
  [672.730][T736]  ? btrfs_qgroup_rescan_worker+0xa70/0xa70
  [672.738][T736]  ? __del_qgroup_relation+0x4ba/0xe00
  [672.738][T736]  btrfs_ioctl+0x3d58/0x5d80
  [672.735][T736]  ? tomoyo_path_number_perm+0x16a/0x550
  [672.737][T736]  ? tomoyo_execute_permission+0x4a0/0x4a0
  [672.731][T736]  ? btrfs_ioctl_get_supported_features+0x50/0x50
  [672.737][T736]  ? __sanitizer_cov_trace_switch+0x54/0x90
  [672.734][T736]  ? do_vfs_ioctl+0x132/0x1660
  [672.730][T736]  ? vfs_fileattr_set+0xc40/0xc40
  [672.730][T736]  ? _raw_spin_unlock_irq+0x2e/0x50
  [672.732][T736]  ? sigprocmask+0xf2/0x340
  [672.737][T736]  ? __fget_files+0x26a/0x480
  [672.732][T736]  ? bpf_lsm_file_ioctl+0x9/0x10
  [672.738][T736]  ? btrfs_ioctl_get_supported_features+0x50/0x50
  [672.736][T736]  __x64_sys_ioctl+0x198/0x210
  [672.736][T736]  do_syscall_64+0x39/0xb0
  [672.731][T736]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  [672.739][T736] RIP: 0033:0x4556ad
  [672.742][T736]  </TASK>
  [672.743][T736]
  [672.748][T736] Allocated by task 27677:
  [672.743][T736]  kasan_save_stack+0x22/0x40
  [672.741][T736]  kasan_set_track+0x25/0x30
  [672.741][T736]  __kasan_kmalloc+0xa4/0xb0
  [672.749][T736]  btrfs_alloc_root+0x48/0x90
  [672.746][T736]  btrfs_create_tree+0x146/0xa20
  [672.744][T736]  btrfs_quota_enable+0x461/0x1d20
  [672.743][T736]  btrfs_ioctl+0x4a1c/0x5d80
  [672.747][T736]  __x64_sys_ioctl+0x198/0x210
  [672.749][T736]  do_syscall_64+0x39/0xb0
  [672.744][T736]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  [672.756][T736]
  [672.757][T736] Freed by task 27677:
  [672.759][T736]  kasan_save_stack+0x22/0x40
  [672.759][T736]  kasan_set_track+0x25/0x30
  [672.756][T736]  kasan_save_free_info+0x2e/0x50
  [672.751][T736]  ____kasan_slab_free+0x162/0x1c0
  [672.758][T736]  slab_free_freelist_hook+0x89/0x1c0
  [672.752][T736]  __kmem_cache_free+0xaf/0x2e0
  [672.752][T736]  btrfs_put_root+0x1ff/0x2b0
  [672.759][T736]  btrfs_quota_disable+0x80a/0xbc0
  [672.752][T736]  btrfs_ioctl+0x3e5f/0x5d80
  [672.756][T736]  __x64_sys_ioctl+0x198/0x210
  [672.753][T736]  do_syscall_64+0x39/0xb0
  [672.765][T736]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  [672.769][T736]
  [672.768][T736] The buggy address belongs to the object at ffff888022ec0000
  [672.768][T736]  which belongs to the cache kmalloc-4k of size 4096
  [672.769][T736] The buggy address is located 520 bytes inside of
  [672.769][T736]  freed 4096-byte region [ffff888022ec0000, ffff888022ec1000)
  [672.760][T736]
  [672.764][T736] The buggy address belongs to the physical page:
  [672.761][T736] page:ffffea00008bb000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x22ec0
  [672.766][T736] head:ffffea00008bb000 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
  [672.779][T736] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
  [672.770][T736] raw: 00fff00000010200 ffff888012842140 ffffea000054ba00 dead000000000002
  [672.770][T736] raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000
  [672.771][T736] page dumped because: kasan: bad access detected
  [672.778][T736] page_owner tracks the page as allocated
  [672.777][T736] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 88
  [672.779][T736]  get_page_from_freelist+0x119c/0x2d50
  [672.779][T736]  __alloc_pages+0x1cb/0x4a0
  [672.776][T736]  alloc_pages+0x1aa/0x270
  [672.773][T736]  allocate_slab+0x260/0x390
  [672.771][T736]  ___slab_alloc+0xa9a/0x13e0
  [672.778][T736]  __slab_alloc.constprop.0+0x56/0xb0
  [672.771][T736]  __kmem_cache_alloc_node+0x136/0x320
  [672.789][T736]  __kmalloc+0x4e/0x1a0
  [672.783][T736]  tomoyo_realpath_from_path+0xc3/0x600
  [672.781][T736]  tomoyo_path_perm+0x22f/0x420
  [672.782][T736]  tomoyo_path_unlink+0x92/0xd0
  [672.780][T736]  security_path_unlink+0xdb/0x150
  [672.788][T736]  do_unlinkat+0x377/0x680
  [672.788][T736]  __x64_sys_unlink+0xca/0x110
  [672.789][T736]  do_syscall_64+0x39/0xb0
  [672.783][T736]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  [672.784][T736] page last free stack trace:
  [672.787][T736]  free_pcp_prepare+0x4e5/0x920
  [672.787][T736]  free_unref_page+0x1d/0x4e0
  [672.784][T736]  __unfreeze_partials+0x17c/0x1a0
  [672.797][T736]  qlist_free_all+0x6a/0x180
  [672.796][T736]  kasan_quarantine_reduce+0x189/0x1d0
  [672.797][T736]  __kasan_slab_alloc+0x64/0x90
  [672.793][T736]  kmem_cache_alloc+0x17c/0x3c0
  [672.799][T736]  getname_flags.part.0+0x50/0x4e0
  [672.799][T736]  getname_flags+0x9e/0xe0
  [672.792][T736]  vfs_fstatat+0x77/0xb0
  [672.791][T736]  __do_sys_newlstat+0x84/0x100
  [672.798][T736]  do_syscall_64+0x39/0xb0
  [672.796][T736]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  [672.790][T736]
  [672.791][T736] Memory state around the buggy address:
  [672.799][T736]  ffff888022ec0100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
  [672.805][T736]  ffff888022ec0180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
  [672.802][T736] >ffff888022ec0200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
  [672.809][T736]                       ^
  [672.809][T736]  ffff888022ec0280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
  [672.809][T736]  ffff888022ec0300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

Fix this by having the qgroup assign ioctl take the qgroup ioctl mutex
before calling btrfs_run_qgroups(), which is what all qgroup ioctls should
call.

Reported-by: butt3rflyh4ck <butterflyhuangxx@gmail.com>
Link: https://lore.kernel.org/linux-btrfs/CAFcO6XN3VD8ogmHwqRk4kbiwtpUSNySu2VAxN8waEPciCHJvMA@mail.gmail.com/
CC: stable@vger.kernel.org # 5.10+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:49 +02:00
Hans de Goede
ba5deb64dd Input: goodix - add Lenovo Yoga Book X90F to nine_bytes_report DMI table
commit 8a0432bab6 upstream.

The Android Lenovo Yoga Book X90F / X90L uses the same goodix touchscreen
with 9 bytes touch reports for its touch keyboard as the already supported
Windows Lenovo Yoga Book X91F/L, add a DMI match for this to
the nine_bytes_report DMI table.

When the quirk for the X91F/L was initially added it was written to
also apply to the X90F/L but this does not work because the Android
version of the Yoga Book uses completely different DMI strings.
Also adjust the X91F/L quirk to reflect that it only applies to
the X91F/L models.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20230315134442.71787-1-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:49 +02:00
David Disseldorp
26a32a212b cifs: fix DFS traversal oops without CONFIG_CIFS_DFS_UPCALL
commit 179a88a855 upstream.

When compiled with CONFIG_CIFS_DFS_UPCALL disabled, cifs_dfs_d_automount
is NULL. cifs.ko logic for mapping CIFS_FATTR_DFS_REFERRAL attributes to
S_AUTOMOUNT and corresponding dentry flags is retained regardless of
CONFIG_CIFS_DFS_UPCALL, leading to a NULL pointer dereference in
VFS follow_automount() when traversing a DFS referral link:
  BUG: kernel NULL pointer dereference, address: 0000000000000000
  ...
  Call Trace:
   <TASK>
   __traverse_mounts+0xb5/0x220
   ? cifs_revalidate_mapping+0x65/0xc0 [cifs]
   step_into+0x195/0x610
   ? lookup_fast+0xe2/0xf0
   path_lookupat+0x64/0x140
   filename_lookup+0xc2/0x140
   ? __create_object+0x299/0x380
   ? kmem_cache_alloc+0x119/0x220
   ? user_path_at_empty+0x31/0x50
   user_path_at_empty+0x31/0x50
   __x64_sys_chdir+0x2a/0xd0
   ? exit_to_user_mode_prepare+0xca/0x100
   do_syscall_64+0x42/0x90
   entry_SYSCALL_64_after_hwframe+0x72/0xdc

This fix adds an inline cifs_dfs_d_automount() {return -EREMOTE} handler
when CONFIG_CIFS_DFS_UPCALL is disabled. An alternative would be to
avoid flagging S_AUTOMOUNT, etc. without CONFIG_CIFS_DFS_UPCALL. This
approach was chosen as it provides more control over the error path.

Signed-off-by: David Disseldorp <ddiss@suse.de>
Cc: stable@vger.kernel.org
Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:49 +02:00
Paulo Alcantara
63bbe24b99 cifs: prevent infinite recursion in CIFSGetDFSRefer()
commit 09ba47b44d upstream.

We can't call smb_init() in CIFSGetDFSRefer() as cifs_reconnect_tcon()
may end up calling CIFSGetDFSRefer() again to get new DFS referrals
and thus causing an infinite recursion.

Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Cc: stable@vger.kernel.org # 6.2
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:49 +02:00
Jason A. Donenfeld
8b3d7ad3e8 Input: focaltech - use explicitly signed char type
commit 8980f19094 upstream.

The recent change of -funsigned-char causes additions of negative
numbers to become additions of large positive numbers, leading to wrong
calculations of mouse movement. Change these casts to be explicitly
signed, to take into account negative offsets.

Fixes: 3bc753c06d ("kbuild: treat char as always unsigned")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217211
Link: https://lore.kernel.org/r/20230318133010.1285202-1-Jason@zx2c4.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:49 +02:00
msizanoen
449a1a61f7 Input: alps - fix compatibility with -funsigned-char
commit 754ff5060d upstream.

The AlpsPS/2 code previously relied on the assumption that `char` is a
signed type, which was true on x86 platforms (the only place where this
driver is used) before kernel 6.2. However, on 6.2 and later, this
assumption is broken due to the introduction of -funsigned-char as a new
global compiler flag.

Fix this by explicitly specifying the signedness of `char` when sign
extending the values received from the device.

Fixes: f3f33c6776 ("Input: alps - Rushmore and v7 resolution support")
Signed-off-by: msizanoen <msizanoen@qtmlabs.xyz>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230320045228.182259-1-msizanoen@qtmlabs.xyz
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:49 +02:00
Horatiu Vultur
988061d099 pinctrl: ocelot: Fix alt mode for ocelot
[ Upstream commit 657fd9da2d ]

In case the driver was trying to set an alternate mode for gpio
0 or 32 then the mode was not set correctly. The reason is that
there is computation error inside the function ocelot_pinmux_set_mux
because in this case it was trying to shift to left by -1.
Fix this by actually shifting the function bits and not the position.

Fixes: 4b36082e2e ("pinctrl: ocelot: fix pinmuxing for pins after 31")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20230206203720.1177718-1-horatiu.vultur@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:49 +02:00
Steffen Bätz
ed3439a8c4 net: dsa: mv88e6xxx: Enable IGMP snooping on user ports only
[ Upstream commit 7bcad0f0e6 ]

Do not set the MV88E6XXX_PORT_CTL0_IGMP_MLD_SNOOP bit on CPU or DSA ports.

This allows the host CPU port to be a regular IGMP listener by sending out
IGMP Membership Reports, which would otherwise not be forwarded by the
mv88exxx chip, but directly looped back to the CPU port itself.

Fixes: 54d792f257 ("net: dsa: Centralise global and port setup code into mv88e6xxx.")
Signed-off-by: Steffen Bätz <steffen@innosonix.de>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230329150140.701559-1-festevam@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:48 +02:00
Michael Chan
8104c79551 bnxt_en: Add missing 200G link speed reporting
[ Upstream commit 581bce7bcb ]

bnxt_fw_to_ethtool_speed() is missing the case statement for 200G
link speed reported by firmware.  As a result, ethtool will report
unknown speed when the firmware reports 200G link speed.

Fixes: 532262ba3b ("bnxt_en: ethtool: support PAM4 link speeds up to 200G")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:48 +02:00
Kalesh AP
62850a0763 bnxt_en: Fix typo in PCI id to device description string mapping
[ Upstream commit 62aad36ed3 ]

Fix 57502 and 57508 NPAR description string entries.  The typos
caused these devices to not match up with lspci output.

Fixes: 49c98421e6 ("bnxt_en: Add PCI IDs for 57500 series NPAR devices.")
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:48 +02:00
Radoslaw Tyl
f524d1e550 i40e: fix registers dump after run ethtool adapter self test
[ Upstream commit c5cff16f46 ]

Fix invalid registers dump from ethtool -d ethX after adapter self test
by ethtool -t ethY. It causes invalid data display.

The problem was caused by overwriting i40e_reg_list[].elements
which is common for ethtool self test and dump.

Fixes: 22dd9ae8af ("i40e: Rework register diagnostic")
Signed-off-by: Radoslaw Tyl <radoslawx.tyl@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Arpana Arland <arpanax.arland@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230328172659.3906413-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:48 +02:00
Alex Elder
fa7fafedc9 net: ipa: compute DMA pool size properly
[ Upstream commit 6c75dc94f2 ]

In gsi_trans_pool_init_dma(), the total size of a pool of memory
used for DMA transactions is calculated.  However the calculation is
done incorrectly.

For 4KB pages, this total size is currently always more than one
page, and as a result, the calculation produces a positive (though
incorrect) total size.  The code still works in this case; we just
end up with fewer DMA pool entries than we intended.

Bjorn Andersson tested booting a kernel with 16KB pages, and hit a
null pointer derereference in sg_alloc_append_table_from_pages(),
descending from gsi_trans_pool_init_dma().  The cause of this was
that a 16KB total size was going to be allocated, and with 16KB
pages the order of that allocation is 0.  The total_size calculation
yielded 0, which eventually led to the crash.

Correcting the total_size calculation fixes the problem.

Reported-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Tested-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Fixes: 9dd441e4ed ("soc: qcom: ipa: GSI transactions")
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230328162751.2861791-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:48 +02:00
Tasos Sahanidis
96e34c8800 ALSA: ymfpci: Fix BUG_ON in probe function
[ Upstream commit 6be2e7522e ]

The snd_dma_buffer.bytes field now contains the aligned size, which this
snd_BUG_ON() did not account for, resulting in the following:

[    9.625915] ------------[ cut here ]------------
[    9.633440] WARNING: CPU: 0 PID: 126 at sound/pci/ymfpci/ymfpci_main.c:2168 snd_ymfpci_create+0x681/0x698 [snd_ymfpci]
[    9.648926] Modules linked in: snd_ymfpci(+) snd_intel_dspcfg kvm(+) snd_intel_sdw_acpi snd_ac97_codec snd_mpu401_uart snd_opl3_lib irqbypass snd_hda_codec gameport snd_rawmidi crct10dif_pclmul crc32_pclmul cfg80211 snd_hda_core polyval_clmulni polyval_generic gf128mul snd_seq_device ghash_clmulni_intel snd_hwdep ac97_bus sha512_ssse3 rfkill snd_pcm aesni_intel tg3 snd_timer crypto_simd snd mxm_wmi libphy cryptd k10temp fam15h_power pcspkr soundcore sp5100_tco wmi acpi_cpufreq mac_hid dm_multipath sg loop fuse dm_mod bpf_preload ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 sr_mod cdrom ata_generic pata_acpi firewire_ohci crc32c_intel firewire_core xhci_pci crc_itu_t pata_via xhci_pci_renesas floppy
[    9.711849] CPU: 0 PID: 126 Comm: kworker/0:2 Not tainted 6.1.21-1-lts #1 08d2e5ece03136efa7c6aeea9a9c40916b1bd8da
[    9.722200] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./990FX Extreme4, BIOS P2.70 06/05/2014
[    9.732204] Workqueue: events work_for_cpu_fn
[    9.736580] RIP: 0010:snd_ymfpci_create+0x681/0x698 [snd_ymfpci]
[    9.742594] Code: 8c c0 4c 89 e2 48 89 df 48 c7 c6 92 c6 8c c0 e8 15 d0 e9 ff 48 83 c4 08 44 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f e9 d3 7a 33 e3 <0f> 0b e9 cb fd ff ff 41 bd fb ff ff ff eb db 41 bd f4 ff ff ff eb
[    9.761358] RSP: 0018:ffffab64804e7da0 EFLAGS: 00010287
[    9.766594] RAX: ffff8fa2df06c400 RBX: ffff8fa3073a8000 RCX: ffff8fa303fbc4a8
[    9.773734] RDX: ffff8fa2df06d000 RSI: 0000000000000010 RDI: 0000000000000020
[    9.780876] RBP: ffff8fa300b5d0d0 R08: ffff8fa3073a8e50 R09: 00000000df06bf00
[    9.788018] R10: ffff8fa2df06bf00 R11: 00000000df068200 R12: ffff8fa3073a8918
[    9.795159] R13: 0000000000000000 R14: 0000000000000080 R15: ffff8fa2df068200
[    9.802317] FS:  0000000000000000(0000) GS:ffff8fa9fec00000(0000) knlGS:0000000000000000
[    9.810414] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.816158] CR2: 000055febaf66500 CR3: 0000000101a2e000 CR4: 00000000000406f0
[    9.823301] Call Trace:
[    9.825747]  <TASK>
[    9.827889]  snd_card_ymfpci_probe+0x194/0x950 [snd_ymfpci b78a5fe64b5663a6390a909c67808567e3e73615]
[    9.837030]  ? finish_task_switch.isra.0+0x90/0x2d0
[    9.841918]  local_pci_probe+0x45/0x80
[    9.845680]  work_for_cpu_fn+0x1a/0x30
[    9.849431]  process_one_work+0x1c7/0x380
[    9.853464]  worker_thread+0x1af/0x390
[    9.857225]  ? rescuer_thread+0x3b0/0x3b0
[    9.861254]  kthread+0xde/0x110
[    9.864414]  ? kthread_complete_and_exit+0x20/0x20
[    9.869210]  ret_from_fork+0x22/0x30
[    9.872792]  </TASK>
[    9.874985] ---[ end trace 0000000000000000 ]---

Fixes: 5c1733e33c ("ALSA: memalloc: Align buffer allocations in page size")
Signed-off-by: Tasos Sahanidis <tasos@tasossah.com>
Link: https://lore.kernel.org/r/20230329032808.170403-1-tasos@tasossah.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:48 +02:00
Takashi Iwai
688b1178c4 ALSA: ymfpci: Fix assignment in if condition
[ Upstream commit e7daaeedb4 ]

PCI YMFPCI driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.

This patch is merely for coding-style fixes, no functional changes.

Link: https://lore.kernel.org/r/20210608140540.17885-53-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Stable-dep-of: 6be2e7522e ("ALSA: ymfpci: Fix BUG_ON in probe function")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:48 +02:00
Tony Krowiak
ee17dea307 s390/vfio-ap: fix memory leak in vfio_ap device driver
[ Upstream commit 8f8cf76758 ]

The device release callback function invoked to release the matrix device
uses the dev_get_drvdata(device *dev) function to retrieve the
pointer to the vfio_matrix_dev object in order to free its storage. The
problem is, this object is not stored as drvdata with the device; since the
kfree function will accept a NULL pointer, the memory for the
vfio_matrix_dev object is never freed.

Since the device being released is contained within the vfio_matrix_dev
object, the container_of macro will be used to retrieve its pointer.

Fixes: 1fde573413 ("s390: vfio-ap: base implementation of VFIO AP device driver")
Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20230320150447.34557-1-akrowiak@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:48 +02:00
Ivan Orlov
ab2a559078 can: bcm: bcm_tx_setup(): fix KMSAN uninit-value in vfs_write
[ Upstream commit 2b4c99f7d9 ]

Syzkaller reported the following issue:

=====================================================
BUG: KMSAN: uninit-value in aio_rw_done fs/aio.c:1520 [inline]
BUG: KMSAN: uninit-value in aio_write+0x899/0x950 fs/aio.c:1600
 aio_rw_done fs/aio.c:1520 [inline]
 aio_write+0x899/0x950 fs/aio.c:1600
 io_submit_one+0x1d1c/0x3bf0 fs/aio.c:2019
 __do_sys_io_submit fs/aio.c:2078 [inline]
 __se_sys_io_submit+0x293/0x770 fs/aio.c:2048
 __x64_sys_io_submit+0x92/0xd0 fs/aio.c:2048
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:766 [inline]
 slab_alloc_node mm/slub.c:3452 [inline]
 __kmem_cache_alloc_node+0x71f/0xce0 mm/slub.c:3491
 __do_kmalloc_node mm/slab_common.c:967 [inline]
 __kmalloc+0x11d/0x3b0 mm/slab_common.c:981
 kmalloc_array include/linux/slab.h:636 [inline]
 bcm_tx_setup+0x80e/0x29d0 net/can/bcm.c:930
 bcm_sendmsg+0x3a2/0xce0 net/can/bcm.c:1351
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 sock_write_iter+0x495/0x5e0 net/socket.c:1108
 call_write_iter include/linux/fs.h:2189 [inline]
 aio_write+0x63a/0x950 fs/aio.c:1600
 io_submit_one+0x1d1c/0x3bf0 fs/aio.c:2019
 __do_sys_io_submit fs/aio.c:2078 [inline]
 __se_sys_io_submit+0x293/0x770 fs/aio.c:2048
 __x64_sys_io_submit+0x92/0xd0 fs/aio.c:2048
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

CPU: 1 PID: 5034 Comm: syz-executor350 Not tainted 6.2.0-rc6-syzkaller-80422-geda666ff2276 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
=====================================================

We can follow the call chain and find that 'bcm_tx_setup' function
calls 'memcpy_from_msg' to copy some content to the newly allocated
frame of 'op->frames'. After that the 'len' field of copied structure
being compared with some constant value (64 or 8). However, if
'memcpy_from_msg' returns an error, we will compare some uninitialized
memory. This triggers 'uninit-value' issue.

This patch will add 'memcpy_from_msg' possible errors processing to
avoid uninit-value issue.

Tested via syzkaller

Reported-by: syzbot+c9bfd85eca611ebf5db1@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=47f897f8ad958bbde5790ebf389b5e7e0a345089
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Fixes: 6f3b911d5f ("can: bcm: add support for CAN FD frames")
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/all/20230314120445.12407-1-ivan.orlov0322@gmail.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:47 +02:00
Vladimir Oltean
9b22e0cfc4 net: stmmac: don't reject VLANs when IFF_PROMISC is set
[ Upstream commit a7602e7332 ]

The blamed commit has introduced the following tests to
dwmac4_add_hw_vlan_rx_fltr(), called from stmmac_vlan_rx_add_vid():

	if (hw->promisc) {
		netdev_err(dev,
			   "Adding VLAN in promisc mode not supported\n");
		return -EPERM;
	}

"VLAN promiscuous" mode is keyed in this driver to IFF_PROMISC, and so,
vlan_vid_add() and vlan_vid_del() calls cannot take place in IFF_PROMISC
mode. I have the following 2 arguments that this restriction is.... hm,
how shall I put it nicely... unproductive :)

First, take the case of a Linux bridge. If the kernel is compiled with
CONFIG_BRIDGE_VLAN_FILTERING=y, then this bridge shall have a VLAN
database. The bridge shall try to call vlan_add_vid() on its bridge
ports for each VLAN in the VLAN table. It will do this irrespectively of
whether that port is *currently* VLAN-aware or not. So it will do this
even when the bridge was created with vlan_filtering 0.
But the Linux bridge, in VLAN-unaware mode, configures its ports in
promiscuous (IFF_PROMISC) mode, so that they accept packets with any
MAC DA (a switch must do this in order to forward those packets which
are not directly targeted to its MAC address).

As a result, the stmmac driver does not work as a bridge port, when the
kernel is compiled with CONFIG_BRIDGE_VLAN_FILTERING=y.

$ ip link add br0 type bridge && ip link set br0 up
$ ip link set eth0 master br0 && ip link set eth0 up
[ 2333.943296] br0: port 1(eth0) entered blocking state
[ 2333.943381] br0: port 1(eth0) entered disabled state
[ 2333.943782] device eth0 entered promiscuous mode
[ 2333.944080] 4033c000.ethernet eth0: Adding VLAN in promisc mode not supported
[ 2333.976509] 4033c000.ethernet eth0: failed to initialize vlan filtering on this port
RTNETLINK answers: Operation not permitted

Secondly, take the case of stmmac as DSA master. Some switch tagging
protocols are based on 802.1Q VLANs (tag_sja1105.c), and as such,
tag_8021q.c uses vlan_vid_add() to work with VLAN-filtering DSA masters.
But also, when a DSA port becomes promiscuous (for example when it joins
a bridge), the DSA framework also makes the DSA master promiscuous.

Moreover, for every VLAN that a DSA switch sends to the CPU, DSA also
programs a VLAN filter on the DSA master, because if the the DSA switch
uses a tail tag, then the hardware frame parser of the DSA master will
see VLAN as VLAN, and might filter them out, for being unknown.

Due to the above 2 reasons, my belief is that the stmmac driver does not
get to choose to not accept vlan_vid_add() calls while IFF_PROMISC is
enabled, because the 2 are completely independent and there are code
paths in the network stack which directly lead to this situation
occurring, without the user's direct input.

In fact, my belief is that "VLAN promiscuous" mode should have never
been keyed on IFF_PROMISC in the first place, but rather, on the
NETIF_F_HW_VLAN_CTAG_FILTER feature flag which can be toggled by the
user through ethtool -k, when present in netdev->hw_features.

In the stmmac driver, NETIF_F_HW_VLAN_CTAG_FILTER is only present in
"features", making this feature "on [fixed]".

I have this belief because I am unaware of any definition of promiscuity
which implies having an effect on anything other than MAC DA (therefore
not VLAN). However, I seem to be rather alone in having this opinion,
looking back at the disagreements from this discussion:
https://lore.kernel.org/netdev/20201110153958.ci5ekor3o2ekg3ky@ipetronik.com/

In any case, to remove the vlan_vid_add() dependency on !IFF_PROMISC,
one would need to remove the check and see what fails. I guess the test
was there because of the way in which dwmac4_vlan_promisc_enable() is
implemented.

For context, the dwmac4 supports Perfect Filtering for a limited number
of VLANs - dwmac4_get_num_vlan(), priv->hw->num_vlan, with a fallback on
Hash Filtering - priv->dma_cap.vlhash - see stmmac_vlan_update(), also
visible in cat /sys/kernel/debug/stmmaceth/eth0/dma_cap | grep 'VLAN
Hash Filtering'.

The perfect filtering is based on MAC_VLAN_Tag_Filter/MAC_VLAN_Tag_Data
registers, accessed in the driver through dwmac4_write_vlan_filter().

The hash filtering is based on the MAC_VLAN_Hash_Table register, named
GMAC_VLAN_HASH_TABLE in the driver and accessed by dwmac4_update_vlan_hash().
The control bit for enabling hash filtering is GMAC_VLAN_VTHM
(MAC_VLAN_Tag_Ctrl bit VTHM: VLAN Tag Hash Table Match Enable).

Now, the description of dwmac4_vlan_promisc_enable() is that it iterates
through the driver's cache of perfect filter entries (hw->vlan_filter[i],
added by dwmac4_add_hw_vlan_rx_fltr()), and evicts them from hardware by
unsetting their GMAC_VLAN_TAG_DATA_VEN (MAC_VLAN_Tag_Data bit VEN - VLAN
Tag Enable) bit. Then it unsets the GMAC_VLAN_VTHM bit, which disables
hash matching.

This leaves the MAC, according to table "VLAN Match Status" from the
documentation, to always enter these data paths:

VID    |VLAN Perfect Filter |VTHM Bit |VLAN Hash Filter |Final VLAN Match
       |Match Result        |         |Match Result     |Status
-------|--------------------|---------|-----------------|----------------
VID!=0 |Fail                |0        |don't care       |Pass

So, dwmac4_vlan_promisc_enable() does its job, but by unsetting
GMAC_VLAN_VTHM, it conflicts with the other code path which controls
this bit: dwmac4_update_vlan_hash(), called through stmmac_update_vlan_hash()
from stmmac_vlan_rx_add_vid() and from stmmac_vlan_rx_kill_vid().
This is, I guess, why dwmac4_add_hw_vlan_rx_fltr() is not allowed to run
after dwmac4_vlan_promisc_enable() has unset GMAC_VLAN_VTHM: because if
it did, then dwmac4_update_vlan_hash() would set GMAC_VLAN_VTHM again,
breaking the "VLAN promiscuity".

It turns out that dwmac4_vlan_promisc_enable() is way too complicated
for what needs to be done. The MAC_Packet_Filter register also has the
VTFE bit (VLAN Tag Filter Enable), which simply controls whether VLAN
tagged packets which don't match the filtering tables (either perfect or
hash) are dropped or not. At the moment, this driver unconditionally
sets GMAC_PACKET_FILTER_VTFE if NETIF_F_HW_VLAN_CTAG_FILTER was detected
through the priv->dma_cap.vlhash capability bits of the device, in
stmmac_dvr_probe().

I would suggest deleting the unnecessarily complex logic from
dwmac4_vlan_promisc_enable(), and simply unsetting GMAC_PACKET_FILTER_VTFE
when becoming IFF_PROMISC, which has the same effect of allowing packets
with any VLAN tags, but has the additional benefit of being able to run
concurrently with stmmac_vlan_rx_add_vid() and stmmac_vlan_rx_kill_vid().

As much as I believe that the VTFE bit should have been exclusively
controlled by NETIF_F_HW_VLAN_CTAG_FILTER through ethtool, and not by
IFF_PROMISC, changing that is not a punctual fix to the problem, and it
would probably break the VFFQ feature added by the later commit
e0f9956a38 ("net: stmmac: Add option for VLAN filter fail queue
enable"). From the commit description, VFFQ needs IFF_PROMISC=on and
VTFE=off in order to work (and this change respects that). But if VTFE
was changed to be controlled through ethtool -k, then a user-visible
change would have been introduced in Intel's scripts (a need to run
"ethtool -k eth0 rx-vlan-filter off" which did not exist before).

The patch was tested with this set of commands:

  ip link set eth0 up
  ip link add link eth0 name eth0.100 type vlan id 100
  ip addr add 192.168.100.2/24 dev eth0.100 && ip link set eth0.100 up
  ip link set eth0 promisc on
  ip link add link eth0 name eth0.101 type vlan id 101
  ip addr add 192.168.101.2/24 dev eth0.101 && ip link set eth0.101 up
  ip link set eth0 promisc off
  ping -c 5 192.168.100.1
  ping -c 5 192.168.101.1
  ip link set eth0 promisc on
  ping -c 5 192.168.100.1
  ping -c 5 192.168.101.1
  ip link del eth0.100
  ip link del eth0.101
  # Wait for VLAN-tagged pings from the other end...
  # Check with "tcpdump -i eth0 -e -n -p" and we should see them
  ip link set eth0 promisc off
  # Wait for VLAN-tagged pings from the other end...
  # Check with "tcpdump -i eth0 -e -n -p" and we shouldn't see them
  # anymore, but remove the "-p" argument from tcpdump and they're there.

Fixes: c89f44ff10 ("net: stmmac: Add support for VLAN promiscuous mode")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:47 +02:00
Faicker Mo
f032e12514 net/net_failover: fix txq exceeding warning
[ Upstream commit e3cbdcb0fb ]

The failover txq is inited as 16 queues.
when a packet is transmitted from the failover device firstly,
the failover device will select the queue which is returned from
the primary device if the primary device is UP and running.
If the primary device txq is bigger than the default 16,
it can lead to the following warning:
eth0 selects TX queue 18, but real number of TX queues is 16

The warning backtrace is:
[   32.146376] CPU: 18 PID: 9134 Comm: chronyd Tainted: G            E      6.2.8-1.el7.centos.x86_64 #1
[   32.147175] Hardware name: Red Hat KVM, BIOS 1.10.2-3.el7_4.1 04/01/2014
[   32.147730] Call Trace:
[   32.147971]  <TASK>
[   32.148183]  dump_stack_lvl+0x48/0x70
[   32.148514]  dump_stack+0x10/0x20
[   32.148820]  netdev_core_pick_tx+0xb1/0xe0
[   32.149180]  __dev_queue_xmit+0x529/0xcf0
[   32.149533]  ? __check_object_size.part.0+0x21c/0x2c0
[   32.149967]  ip_finish_output2+0x278/0x560
[   32.150327]  __ip_finish_output+0x1fe/0x2f0
[   32.150690]  ip_finish_output+0x2a/0xd0
[   32.151032]  ip_output+0x7a/0x110
[   32.151337]  ? __pfx_ip_finish_output+0x10/0x10
[   32.151733]  ip_local_out+0x5e/0x70
[   32.152054]  ip_send_skb+0x19/0x50
[   32.152366]  udp_send_skb.isra.0+0x163/0x3a0
[   32.152736]  udp_sendmsg+0xba8/0xec0
[   32.153060]  ? __folio_memcg_unlock+0x25/0x60
[   32.153445]  ? __pfx_ip_generic_getfrag+0x10/0x10
[   32.153854]  ? sock_has_perm+0x85/0xa0
[   32.154190]  inet_sendmsg+0x6d/0x80
[   32.154508]  ? inet_sendmsg+0x6d/0x80
[   32.154838]  sock_sendmsg+0x62/0x70
[   32.155152]  ____sys_sendmsg+0x134/0x290
[   32.155499]  ___sys_sendmsg+0x81/0xc0
[   32.155828]  ? _get_random_bytes.part.0+0x79/0x1a0
[   32.156240]  ? ip4_datagram_release_cb+0x5f/0x1e0
[   32.156649]  ? get_random_u16+0x69/0xf0
[   32.156989]  ? __fget_light+0xcf/0x110
[   32.157326]  __sys_sendmmsg+0xc4/0x210
[   32.157657]  ? __sys_connect+0xb7/0xe0
[   32.157995]  ? __audit_syscall_entry+0xce/0x140
[   32.158388]  ? syscall_trace_enter.isra.0+0x12c/0x1a0
[   32.158820]  __x64_sys_sendmmsg+0x24/0x30
[   32.159171]  do_syscall_64+0x38/0x90
[   32.159493]  entry_SYSCALL_64_after_hwframe+0x72/0xdc

Fix that by reducing txq number as the non-existent primary-dev does.

Fixes: cfc80d9a11 ("net: Introduce net_failover driver")
Signed-off-by: Faicker Mo <faicker.mo@ucloud.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:47 +02:00
Christophe JAILLET
1025c47151 regulator: Handle deferred clk
[ Upstream commit 02bcba0b9f ]

devm_clk_get() can return -EPROBE_DEFER. So it is better to return the
error code from devm_clk_get(), instead of a hard coded -ENOENT.

This gives more opportunities to successfully probe the driver.

Fixes: 8959e53244 ("regulator: fixed: add possibility to enable by clock")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/18459fae3d017a66313699c7c8456b28158b2dd0.1679819354.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:47 +02:00
ChunHao Lin
69ed49a7b8 r8169: fix RTL8168H and RTL8107E rx crc error
[ Upstream commit 33189f0a94 ]

When link speed is 10 Mbps and temperature is under -20°C, RTL8168H and
RTL8107E may have rx crc error. Disable phy 10 Mbps pll off to fix this
issue.

Fixes: 6e1d0b8988 ("r8169:add support for RTL8168H and RTL8107E")
Signed-off-by: ChunHao Lin <hau@realtek.com>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:47 +02:00
SongJingyi
3907fcb5a4 ptp_qoriq: fix memory leak in probe()
[ Upstream commit f33642224e ]

Smatch complains that:
drivers/ptp/ptp_qoriq.c ptp_qoriq_probe()
warn: 'base' from ioremap() not released.

Fix this by revising the parameter from 'ptp_qoriq->base' to 'base'.
This is only a bug if ptp_qoriq_init() returns on the
first -ENODEV error path.
For other error paths ptp_qoriq->base and base are the same.
And this change makes the code more readable.

Fixes: 7f4399ba40 ("ptp_qoriq: fix NULL access if ptp dt node missing")
Signed-off-by: SongJingyi <u201912584@hust.edu.cn>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Link: https://lore.kernel.org/r/20230324031406.1895159-1-u201912584@hust.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:47 +02:00
Tomas Henzl
6ff4a54c02 scsi: megaraid_sas: Fix crash after a double completion
[ Upstream commit 2309df2711 ]

When a physical disk is attached directly "without JBOD MAP support" (see
megasas_get_tm_devhandle()) then there is no real error handling in the
driver.  Return FAILED instead of SUCCESS.

Fixes: 18365b1385 ("megaraid_sas: Task management support")
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Link: https://lore.kernel.org/r/20230324150134.14696-1-thenzl@redhat.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:47 +02:00
Íñigo Huguet
059c3a7a3d sfc: ef10: don't overwrite offload features at NIC reset
[ Upstream commit ca4a80e4bb ]

At NIC reset, some offload features related to encapsulated traffic
might have changed (this mainly happens if the firmware-variant is
changed with the sfboot userspace tool). Because of this, features are
checked and set again at reset time.

However, this was not done right, and some features were improperly
overwritten at NIC reset:
- Tunneled IPv6 segmentation was always disabled
- Features disabled with ethtool were reenabled
- Features that becomes unsupported after the reset were not disabled

Also, checking if the device supports IPV6_CSUM to enable TSO6 is no
longer necessary because all currently supported devices support it.
Additionally, move the assignment of some other features to the
EF10_OFFLOAD_FEATURES macro, like it is done in ef100, leaving the
selection of features in efx_pci_probe_post_io a bit cleaner.

Fixes: ffffd2454a ("sfc: correctly advertise tunneled IPv6 segmentation")
Fixes: 24b2c3751a ("sfc: advertise encapsulated offloads on EF10")
Reported-by: Tianhao Zhao <tizhao@redhat.com>
Suggested-by: Jonathan Cooper <jonathan.s.cooper@amd.com>
Tested-by: Jonathan Cooper <jonathan.s.cooper@amd.com>
Signed-off-by: Íñigo Huguet <ihuguet@redhat.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20230323083417.7345-1-ihuguet@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:47 +02:00
Arseniy Krasnov
4a81e2da72 mtd: rawnand: meson: invalidate cache on polling ECC bit
[ Upstream commit e732e39ed9 ]

'info_buf' memory is cached and driver polls ECC bit in it. This bit
is set by the NAND controller. If 'usleep_range()' returns before device
sets this bit, 'info_buf' will be cached and driver won't see update of
this bit and will loop forever.

Fixes: 8fae856c53 ("mtd: rawnand: meson: add support for Amlogic NAND flash controller")
Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/d4ef0bd6-816e-f6fa-9385-f05f775f0ae2@sberdevices.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:46 +02:00
Álvaro Fernández Rojas
47a449ec09 mips: bmips: BCM6358: disable RAC flush for TP1
[ Upstream commit ab327f8acd ]

RAC flush causes kernel panics on BCM6358 with EHCI/OHCI when booting from TP1:
[    3.881739] usb 1-1: new high-speed USB device number 2 using ehci-platform
[    3.895011] Reserved instruction in kernel code[#1]:
[    3.900113] CPU: 0 PID: 1 Comm: init Not tainted 5.10.16 #0
[    3.905829] $ 0   : 00000000 10008700 00000000 77d94060
[    3.911238] $ 4   : 7fd1f088 00000000 81431cac 81431ca0
[    3.916641] $ 8   : 00000000 ffffefff 8075cd34 00000000
[    3.922043] $12   : 806f8d40 f3e812b7 00000000 000d9aaa
[    3.927446] $16   : 7fd1f068 7fd1f080 7ff559b8 81428470
[    3.932848] $20   : 00000000 00000000 55590000 77d70000
[    3.938251] $24   : 00000018 00000010
[    3.943655] $28   : 81430000 81431e60 81431f28 800157fc
[    3.949058] Hi    : 00000000
[    3.952013] Lo    : 00000000
[    3.955019] epc   : 80015808 setup_sigcontext+0x54/0x24c
[    3.960464] ra    : 800157fc setup_sigcontext+0x48/0x24c
[    3.965913] Status: 10008703	KERNEL EXL IE
[    3.970216] Cause : 00800028 (ExcCode 0a)
[    3.974340] PrId  : 0002a010 (Broadcom BMIPS4350)
[    3.979170] Modules linked in: ohci_platform ohci_hcd fsl_mph_dr_of ehci_platform ehci_fsl ehci_hcd gpio_button_hotplug usbcore nls_base usb_common
[    3.992907] Process init (pid: 1, threadinfo=(ptrval), task=(ptrval), tls=77e22ec8)
[    4.000776] Stack : 81431ef4 7fd1f080 81431f28 81428470 7fd1f068 81431edc 7ff559b8 81428470
[    4.009467]         81431f28 7fd1f080 55590000 77d70000 77d5498c 80015c70 806f0000 8063ae74
[    4.018149]         08100002 81431f28 0000000a 08100002 81431f28 0000000a 77d6b418 00000003
[    4.026831]         ffffffff 80016414 80080734 81431ecc 81431ecc 00000001 00000000 04000000
[    4.035512]         77d54874 00000000 00000000 00000000 00000000 00000012 00000002 00000000
[    4.044196]         ...
[    4.046706] Call Trace:
[    4.049238] [<80015808>] setup_sigcontext+0x54/0x24c
[    4.054356] [<80015c70>] setup_frame+0xdc/0x124
[    4.059015] [<80016414>] do_notify_resume+0x1dc/0x288
[    4.064207] [<80011b50>] work_notifysig+0x10/0x18
[    4.069036]
[    4.070538] Code: 8fc300b4  00001025  26240008 <ac820000> ac830004  3c048063  0c0228aa  24846a00  26240010
[    4.080686]
[    4.082517] ---[ end trace 22a8edb41f5f983b ]---
[    4.087374] Kernel panic - not syncing: Fatal exception
[    4.092753] Rebooting in 1 seconds..

Because the bootloader (CFE) is not initializing the Read-ahead cache properly
on the second thread (TP1). Since the RAC was not initialized properly, we
should avoid flushing it at the risk of corrupting the instruction stream as
seen in the trace above.

Fixes: d59098a0e9 ("MIPS: bmips: use generic dma noncoherent ops")
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:46 +02:00
Harshit Mogalapalli
ac63f78d9a ca8210: Fix unsigned mac_len comparison with zero in ca8210_skb_tx()
[ Upstream commit 748b2f5e82 ]

mac_len is of type unsigned, which can never be less than zero.

	mac_len = ieee802154_hdr_peek_addrs(skb, &header);
	if (mac_len < 0)
		return mac_len;

Change this to type int as ieee802154_hdr_peek_addrs() can return negative
integers, this is found by static analysis with smatch.

Fixes: 6c993779ea ("ca8210: fix mac_len negative array access")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230306191824.4115839-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:46 +02:00
Anton Gusev
8b1269b709 tracing: Fix wrong return in kprobe_event_gen_test.c
[ Upstream commit bc4f359b3b ]

Overwriting the error code with the deletion result may cause the
function to return 0 despite encountering an error. Commit b111545d26
("tracing: Remove the useless value assignment in
test_create_synth_event()") solves a similar issue by
returning the original error code, so this patch does the same.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Link: https://lore.kernel.org/linux-trace-kernel/20230131075818.5322-1-aagusev@ispras.ru

Signed-off-by: Anton Gusev <aagusev@ispras.ru>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:46 +02:00