Resurrect ubsan overflow checks and ubsan report this warning,
fix it by change the variable [length] type to size_t.
UBSAN: signed-integer-overflow in net/ipv6/ip6_output.c:1489:19
2147479552 + 8567 cannot be represented in type 'int'
CPU: 0 PID: 253 Comm: err Not tainted 5.16.0+ #1
Hardware name: linux,dummy-virt (DT)
Call trace:
dump_backtrace+0x214/0x230
show_stack+0x30/0x78
dump_stack_lvl+0xf8/0x118
dump_stack+0x18/0x30
ubsan_epilogue+0x18/0x60
handle_overflow+0xd0/0xf0
__ubsan_handle_add_overflow+0x34/0x44
__ip6_append_data.isra.48+0x1598/0x1688
ip6_append_data+0x128/0x260
udpv6_sendmsg+0x680/0xdd0
inet6_sendmsg+0x54/0x90
sock_sendmsg+0x70/0x88
____sys_sendmsg+0xe8/0x368
___sys_sendmsg+0x98/0xe0
__sys_sendmmsg+0xf4/0x3b8
__arm64_sys_sendmmsg+0x34/0x48
invoke_syscall+0x64/0x160
el0_svc_common.constprop.4+0x124/0x300
do_el0_svc+0x44/0xc8
el0_svc+0x3c/0x1e8
el0t_64_sync_handler+0x88/0xb0
el0t_64_sync+0x16c/0x170
Changes since v1:
-Change the variable [length] type to unsigned, as Eric Dumazet suggested.
Changes since v2:
-Don't change exthdrlen type in ip6_make_skb, as Paolo Abeni suggested.
Changes since v3:
-Don't change ulen type in udpv6_sendmsg and l2tp_ip6_sendmsg, as
Jakub Kicinski suggested.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Link: https://lore.kernel.org/r/20220607120028.845916-1-wangyufen@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Similar to the handling of play_deferred in commit 19cfe912c3
("Bluetooth: btusb: Fix memory leak in play_deferred"), we thought
a patch might be needed here as well.
Currently usb_submit_urb is called directly to submit deferred tx
urbs after unanchor them.
So the usb_giveback_urb_bh would failed to unref it in usb_unanchor_urb
and cause memory leak.
Put those urbs in tx_anchor to avoid the leak, and also fix the error
handling.
Signed-off-by: Xiaohui Zhang <xiaohuizhang@ruc.edu.cn>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220607083230.6182-1-xiaohuizhang@ruc.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The transaction buffer is allocated by using the size of the packet buf,
and subtracting two which seem intended to remove the two tags which are
not present in the target structure. This calculation leads to under
counting memory because of differences between the packet contents and the
target structure. The aid_len field is a u8 in the packet, but a u32 in
the structure, resulting in at least 3 bytes always being under counted.
Further, the aid data is a variable length field in the packet, but fixed
in the structure, so if this field is less than the max, the difference is
added to the under counting.
The last validation check for transaction->params_len is also incorrect
since it employs the same accounting error.
To fix, perform validation checks progressively to safely reach the
next field, to determine the size of both buffers and verify both tags.
Once all validation checks pass, allocate the buffer and copy the data.
This eliminates freeing memory on the error path, as those checks are
moved ahead of memory allocation.
Fixes: 26fc6c7f02 ("NFC: st21nfca: Add HCI transaction event support")
Fixes: 4fbcc1a4cb ("nfc: st21nfca: Fix potential buffer overflows in EVT_TRANSACTION")
Cc: stable@vger.kernel.org
Signed-off-by: Martin Faltesek <mfaltesek@google.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The first validation check for EVT_TRANSACTION has two different checks
tied together with logical AND. One is a check for minimum packet length,
and the other is for a valid aid_tag. If either condition is true (fails),
then an error should be triggered. The fix is to change && to ||.
Fixes: 26fc6c7f02 ("NFC: st21nfca: Add HCI transaction event support")
Cc: stable@vger.kernel.org
Signed-off-by: Martin Faltesek <mfaltesek@google.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
EXPORT_SYMBOL and __init is a bad combination because the .init.text
section is freed up after the initialization. Hence, modules cannot
use symbols annotated __init. The access to a freed symbol may end up
with kernel panic.
modpost used to detect it, but it has been broken for a decade.
Recently, I fixed modpost so it started to warn it again, then this
showed up in linux-next builds.
There are two ways to fix it:
- Remove __init
- Remove EXPORT_SYMBOL
I chose the latter for this case because the caller (net/ipv6/seg6.c)
and the callee (net/ipv6/seg6_hmac.c) belong to the same module.
It seems an internal function call in ipv6.ko.
Fixes: bf355b8d2c ("ipv6: sr: add core files for SR HMAC support")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
EXPORT_SYMBOL and __init is a bad combination because the .init.text
section is freed up after the initialization. Hence, modules cannot
use symbols annotated __init. The access to a freed symbol may end up
with kernel panic.
modpost used to detect it, but it has been broken for a decade.
Recently, I fixed modpost so it started to warn it again, then this
showed up in linux-next builds.
There are two ways to fix it:
- Remove __init
- Remove EXPORT_SYMBOL
I chose the latter for this case because the only in-tree call-site,
net/ipv4/xfrm4_policy.c is never compiled as modular.
(CONFIG_XFRM is boolean)
Fixes: 2f32b51b60 ("xfrm: Introduce xfrm_input_afinfo to access the the callbacks properly")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
EXPORT_SYMBOL and __init is a bad combination because the .init.text
section is freed up after the initialization. Hence, modules cannot
use symbols annotated __init. The access to a freed symbol may end up
with kernel panic.
modpost used to detect it, but it has been broken for a decade.
Recently, I fixed modpost so it started to warn it again, then this
showed up in linux-next builds.
There are two ways to fix it:
- Remove __init
- Remove EXPORT_SYMBOL
I chose the latter for this case because the only in-tree call-site,
drivers/net/phy/phy_device.c is never compiled as modular.
(CONFIG_PHYLIB is boolean)
Fixes: 90eff9096c ("net: phy: Allow splitting MDIO bus/device support from PHYs")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Every iteration of for_each_available_child_of_node() decrements
the reference count of the previous node.
when breaking early from a for_each_available_child_of_node() loop,
we need to explicitly call of_node_put() on the gphy_fw_np.
Add missing of_node_put() to avoid refcount leak.
Fixes: 14fceff477 ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220605072335.11257-1-linmq006@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
1) Fix NAT support for NFPROTO_INET without layer 3 address,
from Florian Westphal.
2) Use kfree_rcu(ptr, rcu) variant in nf_tables clean_net path.
3) Use list to collect flowtable hooks to be deleted.
4) Initialize list of hook field in flowtable transaction.
5) Release hooks on error for flowtable updates.
6) Memleak in hardware offload rule commit and abort paths.
7) Early bail out in case device does not support for hardware offload.
This adds a new interface to net/core/flow_offload.c to check if the
flow indirect block list is empty.
* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: nf_tables: bail out early if hardware offload is not supported
netfilter: nf_tables: memleak flow rule from commit path
netfilter: nf_tables: release new hooks on unsupported flowtable flags
netfilter: nf_tables: always initialize flowtable hook list in transaction
netfilter: nf_tables: delete flowtable hooks via transaction list
netfilter: nf_tables: use kfree_rcu(ptr, rcu) to release hooks in clean_net path
netfilter: nat: really support inet nat without l3 address
====================
Link: https://lore.kernel.org/r/20220606212055.98300-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
bpf_helpers.h has been moved to tools/lib/bpf since 5.10, so add more
including path.
Fixes: edae34a3ed ("selftests net: add UDP GRO fraglist + bpf self-tests")
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Lina Wang <lina.wang@mediatek.com>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20220606064517.8175-1-lina.wang@mediatek.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
unix_dgram_poll() calls unix_dgram_peer_wake_me() without `other`'s
lock held and check if its receive queue is full. Here we need to
use unix_recvq_full_lockless() instead of unix_recvq_full(), otherwise
KCSAN will report a data-race.
Fixes: 7d267278a9 ("unix: avoid use-after-free in ep_remove_wait_queue")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20220605232325.11804-1-kuniyu@amazon.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
When the managed API is used, there is no need to explicitly call
pci_free_irq_vectors().
This looks to be a left-over from the commit in the Fixes tag. Only the
.remove() function had been updated.
So remove this unused function call and update goto label accordingly.
Fixes: 8accc46775 ("stmmac: intel: use managed PCI function on probe and resume")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Link: https://lore.kernel.org/r/1ac9b6787b0db83b0095711882c55c77c8ea8da0.1654462241.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
of_get_child_by_name() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.
Fixes: 55954f3bfd ("net: ethernet: bgmac: move BCMA MDIO Phy code into a separate file")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220603133238.44114-1-linmq006@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Taehee Yoo says:
====================
amt: fix several bugs in amt_rcv()
This series fixes bugs in amt_rcv().
First patch fixes pskb_may_pull() issue.
Some functions missed to call pskb_may_pull() and uses wrong
parameter of pskb_may_pull().
Second patch fixes possible null-ptr-deref in amt_rcv().
If there is no amt private data in sock, skb will be freed.
And it increases stats.
But in order to increase stats, amt private data is needed.
So, uninitialised pointer will be used at that point.
Third patch fixes wrong definition of type_str[] in amt.c
====================
Link: https://lore.kernel.org/r/20220602140108.18329-1-ap420073@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
amt message type definition starts from 1, not 0.
But type_str[] starts from 0.
So, it prints wrong type information.
Fixes: cbc21dc1cf ("amt: add data plane of amt interface")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When amt interface receives amt message, it tries to obtain amt private
data from sock.
If there is no amt private data, it frees an skb immediately.
After kfree_skb(), it increases the rx_dropped stats.
But in order to use rx_dropped, amt private data is needed.
So, it makes amt_rcv() to do not increase rx_dropped stats when it can
not obtain amt private data.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 1a1a0e80e0 ("amt: fix possible memory leak in amt_rcv()")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
It adds missing pskb_may_pull() in amt_update_handler() and
amt_multicast_data_handler().
And it fixes wrong parameter of pskb_may_pull() in
amt_advertisement_handler() and amt_membership_query_handler().
Reported-by: Jakub Kicinski <kuba@kernel.org>
Fixes: cbc21dc1cf ("amt: add data plane of amt interface")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If user requests for NFT_CHAIN_HW_OFFLOAD, then check if either device
provides the .ndo_setup_tc interface or there is an indirect flow block
that has been registered. Otherwise, bail out early from the preparation
phase. Moreover, validate that family == NFPROTO_NETDEV and hook is
NF_NETDEV_INGRESS.
Fixes: c9626a2cbd ("netfilter: nf_tables: add hardware offload support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
There is a limitation in TI DP83867 PHY device where SGMII AN is only
triggered once after the device is booted up. Even after the PHY TPI is
down and up again, SGMII AN is not triggered and hence no new in-band
message from PHY to MAC side SGMII.
This could cause an issue during power up, when PHY is up prior to MAC.
At this condition, once MAC side SGMII is up, MAC side SGMII wouldn`t
receive new in-band message from TI PHY with correct link status, speed
and duplex info.
As suggested by TI, implemented a SW solution here to retrigger SGMII
Auto-Neg whenever there is a link change.
v2: Add Fixes tag in commit message.
Fixes: 2a10154abc ("net: phy: dp83867: Add TI dp83867 phy")
Cc: <stable@vger.kernel.org> # 5.4.x
Signed-off-by: Sit, Michael Wei Hong <michael.wei.hong.sit@intel.com>
Reviewed-by: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: Tan Tee Min <tee.min.tan@linux.intel.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220526090347.128742-1-tee.min.tan@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Abort path release flow rule object, however, commit path does not.
Update code to destroy these objects before releasing the transaction.
Fixes: c9626a2cbd ("netfilter: nf_tables: add hardware offload support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Release the list of new hooks that are pending to be registered in case
that unsupported flowtable flags are provided.
Fixes: 78d9f48f7f ("netfilter: nf_tables: add devices to existing flowtable")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The hook list is used if nft_trans_flowtable_update(trans) == true. However,
initialize this list for other cases for safety reasons.
Fixes: 78d9f48f7f ("netfilter: nf_tables: add devices to existing flowtable")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Current release - new code bugs:
- af_packet: make sure to pull the MAC header, avoid skb panic in GSO
- ptp_clockmatrix: fix inverted logic in is_single_shot()
- netfilter: flowtable: fix missing FLOWI_FLAG_ANYSRC flag
- dt-bindings: net: adin: fix adi,phy-output-clock description syntax
- wifi: iwlwifi: pcie: rename CAUSE macro, avoid MIPS build warning
Previous releases - regressions:
- Revert "net: af_key: add check for pfkey_broadcast in function
pfkey_process"
- tcp: fix tcp_mtup_probe_success vs wrong snd_cwnd
- nf_tables: disallow non-stateful expression in sets earlier
- nft_limit: clone packet limits' cost value
- nf_tables: double hook unregistration in netns path
- ping6: fix ping -6 with interface name
Previous releases - always broken:
- sched: fix memory barriers to prevent skbs from getting stuck
in lockless qdiscs
- neigh: set lower cap for neigh_managed_work rearming, avoid
constantly scheduling the probe work
- bpf: fix probe read error on big endian in ___bpf_prog_run()
- amt: memory leak and error handling fixes
Misc:
- ipv6: expand & rename accept_unsolicited_na to accept_untracked_na
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf and netfilter.
Current release - new code bugs:
- af_packet: make sure to pull the MAC header, avoid skb panic in GSO
- ptp_clockmatrix: fix inverted logic in is_single_shot()
- netfilter: flowtable: fix missing FLOWI_FLAG_ANYSRC flag
- dt-bindings: net: adin: fix adi,phy-output-clock description syntax
- wifi: iwlwifi: pcie: rename CAUSE macro, avoid MIPS build warning
Previous releases - regressions:
- Revert "net: af_key: add check for pfkey_broadcast in function
pfkey_process"
- tcp: fix tcp_mtup_probe_success vs wrong snd_cwnd
- nf_tables: disallow non-stateful expression in sets earlier
- nft_limit: clone packet limits' cost value
- nf_tables: double hook unregistration in netns path
- ping6: fix ping -6 with interface name
Previous releases - always broken:
- sched: fix memory barriers to prevent skbs from getting stuck in
lockless qdiscs
- neigh: set lower cap for neigh_managed_work rearming, avoid
constantly scheduling the probe work
- bpf: fix probe read error on big endian in ___bpf_prog_run()
- amt: memory leak and error handling fixes
Misc:
- ipv6: expand & rename accept_unsolicited_na to accept_untracked_na"
* tag 'net-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (80 commits)
net/af_packet: make sure to pull mac header
net: add debug info to __skb_pull()
net: CONFIG_DEBUG_NET depends on CONFIG_NET
stmmac: intel: Add RPL-P PCI ID
net: stmmac: use dev_err_probe() for reporting mdio bus registration failure
tipc: check attribute length for bearer name
ice: fix access-beyond-end in the switch code
nfp: remove padding in nfp_nfdk_tx_desc
ax25: Fix ax25 session cleanup problems
net: usb: qmi_wwan: Add support for Cinterion MV31 with new baseline
sfc/siena: fix wrong tx channel offset with efx_separate_tx_channels
sfc/siena: fix considering that all channels have TX queues
socket: Don't use u8 type in uapi socket.h
net/sched: act_api: fix error code in tcf_ct_flow_table_fill_tuple_ipv6()
net: ping6: Fix ping -6 with interface name
macsec: fix UAF bug for real_dev
octeontx2-af: fix error code in is_valid_offset()
wifi: mac80211: fix use-after-free in chanctx code
bonding: guard ns_targets by CONFIG_IPV6
tcp: tcp_rtx_synack() can be called from process context
...
Commit cfc1d27789 ("module: Move all into module/") changed the prefix
of the module param by moving/renaming files. A later commit also moves
the module_param() into a different file, thereby changing the prefix
yet again.
This would break kernel cmdline compatibility and also userspace
compatibility at /sys/module/module/parameters/sig_enforce.
So, set the prefix back to "module.".
Fixes: cfc1d27789 ("module: Move all into module/")
Link: https://lore.kernel.org/lkml/20220602034111.4163292-1-saravanak@google.com/
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Aaron Tomlin <atomlin@redhat.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'pci-v5.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci fixes from Bjorn Helgaas:
- Revert brcmstb patches that broke booting on Raspberry Pi Compute
Module 4 (Bjorn Helgaas)
- Fix bridge_d3_blacklist[] error that overwrote the existing Gigabyte
X299 entry instead of adding a new one (Bjorn Helgaas)
- Update Lorenzo Pieralisi's email address in MAINTAINERS (Lorenzo
Pieralisi)
* tag 'pci-v5.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
MAINTAINERS: Update Lorenzo Pieralisi's email address
PCI/PM: Fix bridge_d3_blacklist[] Elo i2 overwrite of Gigabyte X299
Revert "PCI: brcmstb: Split brcm_pcie_setup() into two funcs"
Revert "PCI: brcmstb: Add mechanism to turn on subdev regulators"
Revert "PCI: brcmstb: Add control of subdevice voltage regulators"
Revert "PCI: brcmstb: Do not turn off WOL regulators on suspend"
Eric Dumazet says:
====================
net: af_packet: be careful when expanding mac header size
A recent regression in af_packet needed a preliminary debug patch,
which will presumably be useful for next bugs hunting.
The af_packet fix is to make sure MAC headers are contained in
skb linear part, as GSO stack requests.
v2: CONFIG_DEBUG_NET depends on CONFIG_NET to avoid compile
errors found by kernel bots.
====================
Link: https://lore.kernel.org/r/20220602161859.2546399-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
While analyzing yet another syzbot report, I found the following
patch very useful. It allows to better understand what went wrong.
This debug info is only enabled if CONFIG_DEBUG_NET=y,
which is the case for syzbot builds.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
It makes little sense to debug networking stacks
if networking is not compiled in.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
I have a board where these two lines are always printed during boot:
imx-dwmac 30bf0000.ethernet: Cannot register the MDIO bus
imx-dwmac 30bf0000.ethernet: stmmac_dvr_probe: MDIO bus (id: 1) registration failed
It's perfectly fine, and the device is successfully (and silently, as
far as the console goes) probed later.
Use dev_err_probe() instead, which will demote these messages to debug
level (thus removing the alarming messages from the console) when the
error is -EPROBE_DEFER, and also has the advantage of including the
error code if/when it happens to be something other than -EPROBE_DEFER.
While here, add the missing \n to one of the format strings.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220602074840.1143360-1-linux@rasmusvillemoes.dk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
nothing in particular standing out, except perhaps that the fact that
the MDS never really maintained atime was made official and thus it's
no longer updated on the client either.
We also have a MAINTAINERS update: Jeff is transitioning his filesystem
maintainership duties to Xiubo.
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Merge tag 'ceph-for-5.19-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"A big pile of assorted fixes and improvements for the filesystem with
nothing in particular standing out, except perhaps that the fact that
the MDS never really maintained atime was made official and thus it's
no longer updated on the client either.
We also have a MAINTAINERS update: Jeff is transitioning his
filesystem maintainership duties to Xiubo"
* tag 'ceph-for-5.19-rc1' of https://github.com/ceph/ceph-client: (23 commits)
MAINTAINERS: move myself from ceph "Maintainer" to "Reviewer"
ceph: fix decoding of client session messages flags
ceph: switch TASK_INTERRUPTIBLE to TASK_KILLABLE
ceph: remove redundant variable ino
ceph: try to queue a writeback if revoking fails
ceph: fix statfs for subdir mounts
ceph: fix possible deadlock when holding Fwb to get inline_data
ceph: redirty the page for writepage on failure
ceph: try to choose the auth MDS if possible for getattr
ceph: disable updating the atime since cephfs won't maintain it
ceph: flush the mdlog for filesystem sync
ceph: rename unsafe_request_wait()
libceph: use swap() macro instead of taking tmp variable
ceph: fix statx AT_STATX_DONT_SYNC vs AT_STATX_FORCE_SYNC check
ceph: no need to invalidate the fscache twice
ceph: replace usage of found with dedicated list iterator variable
ceph: use dedicated list iterator variable
ceph: update the dlease for the hashed dentry when removing
ceph: stop retrying the request when exceeding 256 times
ceph: stop forwarding the request when exceeding 256 times
...
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Merge tag 'printk-for-5.19-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk fixup from Petr Mladek:
- Revert inappropriate use of wake_up_interruptible_all() in printk()
* tag 'printk-for-5.19-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
Revert "printk: wake up all waiters"
Update comments in the memblock tests so that they will have consistent
style.
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Merge tag 'memblock-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock test suite updates from Mike Rapoport:
"Comment updates for memblock test suite
Update comments in the memblock tests so that they will have
consistent style"
* tag 'memblock-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
memblock tests: remove completed TODO item
memblock tests: update style of comments for memblock_free_*() functions
memblock tests: update style of comments for memblock_remove_*() functions
memblock tests: update style of comments for memblock_reserve_*() functions
memblock tests: update style of comments for memblock_add_*() functions
The "data->block[0]" variable comes from the user and is a number
between 0-255. It needs to be capped to prevent writing beyond the end
of dma_buffer[].
Fixes: 5e9a97b1f4 ("i2c: ismt: Adding support for I2C_SMBUS_BLOCK_PROC_CALL")
Reported-and-tested-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Global `-Warray-bounds` enablement revealed some problems, one of
which is the way we define and use AQC rules messages.
In fact, they have a shared header, followed by the actual message,
which can be of one of several different formats. So it is
straightforward enough to define that header as a separate struct
and then embed it into message structures as needed, but currently
all the formats reside in one union coupled with the header. Then,
the code allocates only the memory needed for a particular message
format, leaving the union potentially incomplete.
There are no actual reads or writes beyond the end of an allocated
chunk, but at the same time, the whole implementation is fragile and
backed by an equilibrium rather than strong type and memory checks.
Define the structures the other way around: one for the common
header and the rest for the actual formats with the header embedded.
There are no places where several union members would be used at the
same time anyway. This allows to use proper struct_size() and let
the compiler know what is going to be done.
Finally, unsilence `-Warray-bounds` back for ice_switch.c.
Other little things worth mentioning:
* &ice_sw_rule_vsi_list_query is not used anywhere, remove it. It's
weird anyway to talk to hardware with purely kernel types
(bitmaps);
* expand the ICE_SW_RULE_*_SIZE() macros to pass a structure
variable name to struct_size() to let it do strict typechecking;
* rename ice_sw_rule_lkup_rx_tx::hdr to ::hdr_data to keep ::hdr
for the header structure to have the same name for it constistenly
everywhere;
* drop the duplicate of %ICE_SW_RULE_RX_TX_NO_HDR_SIZE residing in
ice_switch.h.
Fixes: 9daf8208dd ("ice: Add support for switch filter programming")
Fixes: 66486d8943 ("ice: replace single-element array used for C struct hack")
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Reviewed-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Acked-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220601105924.2841410-1-alexandr.lobakin@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
NFDK firmware supports 48-bit dma addressing and
parses 16 high bits of dma addresses.
In nfp_nfdk_tx_desc, dma related structure and tso
related structure are union. When "mss" be filled
with nonzero value due to enable tso, the memory used
by "padding" may be also filled. Then, firmware may
parse wrong dma addresses which causes TX watchdog
timeout problem.
This patch removes padding and unifies the dma_addr_hi
bits with the one in firmware. nfp_nfdk_tx_desc_set_dma_addr
is also added to match this change.
Fixes: c10d12e3dc ("nfp: add support for NFDK data path")
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20220601083449.50556-1-simon.horman@corigine.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
There are session cleanup problems in ax25_release() and
ax25_disconnect(). If we setup a session and then disconnect,
the disconnected session is still in "LISTENING" state that
is shown below.
Active AX.25 sockets
Dest Source Device State Vr/Vs Send-Q Recv-Q
DL9SAU-4 DL9SAU-3 ??? LISTENING 000/000 0 0
DL9SAU-3 DL9SAU-4 ??? LISTENING 000/000 0 0
The first reason is caused by del_timer_sync() in ax25_release().
The timers of ax25 are used for correct session cleanup. If we use
ax25_release() to close ax25 sessions and ax25_dev is not null,
the del_timer_sync() functions in ax25_release() will execute.
As a result, the sessions could not be cleaned up correctly,
because the timers have stopped.
In order to solve this problem, this patch adds a device_up flag
in ax25_dev in order to judge whether the device is up. If there
are sessions to be cleaned up, the del_timer_sync() in
ax25_release() will not execute. What's more, we add ax25_cb_del()
in ax25_kill_by_device(), because the timers have been stopped
and there are no functions that could delete ax25_cb if we do not
call ax25_release(). Finally, we reorder the position of
ax25_list_lock in ax25_cb_del() in order to synchronize among
different functions that call ax25_cb_del().
The second reason is caused by improper check in ax25_disconnect().
The incoming ax25 sessions which ax25->sk is null will close
heartbeat timer, because the check "if(!ax25->sk || ..)" is
satisfied. As a result, the session could not be cleaned up properly.
In order to solve this problem, this patch changes the improper
check to "if(ax25->sk && ..)" in ax25_disconnect().
What`s more, the ax25_disconnect() may be called twice, which is
not necessary. For example, ax25_kill_by_device() calls
ax25_disconnect() and sets ax25->state to AX25_STATE_0, but
ax25_release() calls ax25_disconnect() again.
In order to solve this problem, this patch add a check in
ax25_release(). If the flag of ax25->sk equals to SOCK_DEAD,
the ax25_disconnect() in ax25_release() should not be executed.
Fixes: 82e31755e5 ("ax25: Fix UAF bugs in ax25 timers")
Fixes: 8a367e74c0 ("ax25: Fix segfault after sock connection timeout")
Reported-and-tested-by: Thomas Osterried <thomas@osterried.de>
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Link: https://lore.kernel.org/r/20220530152158.108619-1-duoming@zju.edu.cn
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Remove inactive bool field in nft_hook object that was introduced in
abadb2f865 ("netfilter: nf_tables: delete devices from flowtable").
Move stale flowtable hooks to transaction list instead.
Deleting twice the same device does not result in ENOENT.
Fixes: abadb2f865 ("netfilter: nf_tables: delete devices from flowtable")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
A rare BUG_ON triggered in assoc_array_gc:
[3430308.818153] kernel BUG at lib/assoc_array.c:1609!
Which corresponded to the statement currently at line 1593 upstream:
BUG_ON(assoc_array_ptr_is_meta(p));
Using the data from the core dump, I was able to generate a userspace
reproducer[1] and determine the cause of the bug.
[1]: https://github.com/brenns10/kernel_stuff/tree/master/assoc_array_gc
After running the iterator on the entire branch, an internal tree node
looked like the following:
NODE (nr_leaves_on_branch: 3)
SLOT [0] NODE (2 leaves)
SLOT [1] NODE (1 leaf)
SLOT [2..f] NODE (empty)
In the userspace reproducer, the pr_devel output when compressing this
node was:
-- compress node 0x5607cc089380 --
free=0, leaves=0
[0] retain node 2/1 [nx 0]
[1] fold node 1/1 [nx 0]
[2] fold node 0/1 [nx 2]
[3] fold node 0/2 [nx 2]
[4] fold node 0/3 [nx 2]
[5] fold node 0/4 [nx 2]
[6] fold node 0/5 [nx 2]
[7] fold node 0/6 [nx 2]
[8] fold node 0/7 [nx 2]
[9] fold node 0/8 [nx 2]
[10] fold node 0/9 [nx 2]
[11] fold node 0/10 [nx 2]
[12] fold node 0/11 [nx 2]
[13] fold node 0/12 [nx 2]
[14] fold node 0/13 [nx 2]
[15] fold node 0/14 [nx 2]
after: 3
At slot 0, an internal node with 2 leaves could not be folded into the
node, because there was only one available slot (slot 0). Thus, the
internal node was retained. At slot 1, the node had one leaf, and was
able to be folded in successfully. The remaining nodes had no leaves,
and so were removed. By the end of the compression stage, there were 14
free slots, and only 3 leaf nodes. The tree was ascended and then its
parent node was compressed. When this node was seen, it could not be
folded, due to the internal node it contained.
The invariant for compression in this function is: whenever
nr_leaves_on_branch < ASSOC_ARRAY_FAN_OUT, the node should contain all
leaf nodes. The compression step currently cannot guarantee this, given
the corner case shown above.
To fix this issue, retry compression whenever we have retained a node,
and yet nr_leaves_on_branch < ASSOC_ARRAY_FAN_OUT. This second
compression will then allow the node in slot 1 to be folded in,
satisfying the invariant. Below is the output of the reproducer once the
fix is applied:
-- compress node 0x560e9c562380 --
free=0, leaves=0
[0] retain node 2/1 [nx 0]
[1] fold node 1/1 [nx 0]
[2] fold node 0/1 [nx 2]
[3] fold node 0/2 [nx 2]
[4] fold node 0/3 [nx 2]
[5] fold node 0/4 [nx 2]
[6] fold node 0/5 [nx 2]
[7] fold node 0/6 [nx 2]
[8] fold node 0/7 [nx 2]
[9] fold node 0/8 [nx 2]
[10] fold node 0/9 [nx 2]
[11] fold node 0/10 [nx 2]
[12] fold node 0/11 [nx 2]
[13] fold node 0/12 [nx 2]
[14] fold node 0/13 [nx 2]
[15] fold node 0/14 [nx 2]
internal nodes remain despite enough space, retrying
-- compress node 0x560e9c562380 --
free=14, leaves=1
[0] fold node 2/15 [nx 0]
after: 3
Changes
=======
DH:
- Use false instead of 0.
- Reorder the inserted lines in a couple of places to put retained before
next_slot.
ver #2)
- Fix typo in pr_devel, correct comparison to "<="
Fixes: 3cb989501c ("Add a generic associative array implementation.")
Cc: <stable@vger.kernel.org>
Signed-off-by: Stephen Brennan <stephen.s.brennan@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Andrew Morton <akpm@linux-foundation.org>
cc: keyrings@vger.kernel.org
Link: https://lore.kernel.org/r/20220511225517.407935-1-stephen.s.brennan@oracle.com/ # v1
Link: https://lore.kernel.org/r/20220512215045.489140-1-stephen.s.brennan@oracle.com/ # v2
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'mlx5-fixes-2022-05-31' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5 fixes 2022-05-31
This series provides bug fixes to mlx5 driver.
Please pull and let me know if there is any problem.
* tag 'mlx5-fixes-2022-05-31' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5: Fix mlx5_get_next_dev() peer device matching
net/mlx5e: Update netdev features after changing XDP state
net/mlx5: correct ECE offset in query qp output
net/mlx5e: Disable softirq in mlx5e_activate_rq to avoid race condition
net/mlx5: CT: Fix header-rewrite re-use for tupels
net/mlx5e: TC NIC mode, fix tc chains miss table
net/mlx5: Don't use already freed action pointer
====================
Link: https://lore.kernel.org/r/20220531205447.99236-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Íñigo Huguet says:
====================
sfc/siena: fix some efx_separate_tx_channels errors
Trying to load sfc driver with modparam efx_separate_tx_channels=1
resulted in errors during initialization and not being able to use the
NIC. This patches fix a few bugs and make it work again.
This has been already done for sfc, do it also for sfc_siena.
====================
Link: https://lore.kernel.org/r/20220601063603.15362-1-ihuguet@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
tx_channel_offset is calculated in efx_allocate_msix_channels, but it is
also calculated again in efx_set_channels because it was originally done
there, and when efx_allocate_msix_channels was introduced it was
forgotten to be removed from efx_set_channels.
Moreover, the old calculation is wrong when using
efx_separate_tx_channels because now we can have XDP channels after the
TX channels, so n_channels - n_tx_channels doesn't point to the first TX
channel.
Remove the old calculation from efx_set_channels, and add the
initialization of this variable if MSI or legacy interrupts are used,
next to the initialization of the rest of the related variables, where
it was missing.
This has been already done for sfc, do it also for sfc_siena.
Fixes: 3990a8fffb ("sfc: allocate channels for XDP tx queues")
Reported-by: Tianhao Zhao <tizhao@redhat.com>
Signed-off-by: Íñigo Huguet <ihuguet@redhat.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
