Stas Nichiporovich reported a regression in his HFSC qdisc setup
on a non multi queue device.
It turns out I mistakenly added a TCQ_F_NOPARENT flag on all qdisc
allocated in qdisc_create() for non multi queue devices, which was
rather buggy. I was clearly mislead by the TCQ_F_ONETXQUEUE that is
also set here for no good reason, since it only matters for the root
qdisc.
Fixes: 4eaf3b84f2 ("net_sched: fix qdisc_tree_decrease_qlen() races")
Reported-by: Stas Nichiporovich <stasn77@gmail.com>
Tested-by: Stas Nichiporovich <stasn77@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Paul Bolle says:
====================
ser_gigaset: fix deallocation of platform device structure
Sascha Levin reported that the syzkaller fuzzer triggered a WARNING in
ser_gigaset (see https://lkml.kernel.org/g/56587467.8050102@oracle.com ). It
turned out that ser_gigaset has always deallocated its platform device
structure incorrectly. Tilman submitted the patch that fixes that (3/4) and a
related cleanup (4/4).
Tilman also submitted a minor cleanup of some NULL checks (1/4) that prompted
Alan to turn those checks into WARN_ONs (2/4). If no one hits these WARN_ONs in
the next couple of releases these WARN_ONs should be removed.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
device->platform_data and platform_device->resource are never used
and remain NULL through their entire life. Drops the kfree() calls
for them from the device release method.
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
When shutting down the device, the struct ser_cardstate must not be
kfree()d immediately after the call to platform_device_unregister()
since the embedded struct platform_device is still in use.
Move the kfree() call to the release method instead.
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Fixes: 2869b23e4b ("drivers/isdn/gigaset: new M101 driver (v2)")
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
These checks do nothing useful to protect the code from races. On the
other hand if the old code has been masking a real bug we would like to
know about it.
The check for tiocmset is kept because it is valid for a tty driver to
have a NULL tiocmset method. That in itself is probably a mistake given
modern coding practices - but needs fixing in the tty layer.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit f34d7a5b70 ("tty: The big operations rework") changed
tty->driver to tty->ops but left NULL checks for tty->driver untouched.
Fix.
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
[pebolle: removed Fixes tag]
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull crypto fix from Herbert Xu:
"This fixes a boundary condition in the blkcipher SG walking code that
can lead to a crash when used with the new chacha20 algorithm"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: skcipher - Copy iv from desc even for 0-len walks
Pavel Machek reports a warning about W+X pages found in the "Persisent"
kmap area. After grepping for it (using the correct spelling), and not
finding it, I noticed how the debug printk was just misspelled. Fix it.
The actual mapping bug that Pavel reported is still open. It's
apparently a separate issue from the known EFI page tables, looks like
it's related to the HIGHMEM mappings.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The problem here is that at the end of the loop we test for if
idc->vnic_wait_limit is zero, but since idc->vnic_wait_limit-- is a
post-op, it actually ends up set to (u8)-1. I have fixed this by
moving the decrement inside the loop.
Fixes: 486a5bc77a ('qlcnic: Add support for 83xx suspend and resume.')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We test for if "tries" is zero at the end but "tries--" is a post-op so
it will end with "tries" set to -1. I have changed it to a pre-op
instead.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The problem here is that after the loop we test for "if (!i) " but
because "i--" is a post-op we exit with i set to -1. I have fixed this
by changing it to a pre-op instead. I had to change the starting value
from 3 to 4 so that we still iterate 3 times.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
At the end of the loop we test "if (!count)" but because "count--" is
a post-op then the loop will end with count set to -1. I have fixed
this by changing it to --count.
Fixes: c5aa9e3b81 ('amd-xgbe: Initial AMD 10GbE platform driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are two issue here.
1) cnt starts as maxloop + 1 so all these loops iterate one more time
than intended.
2) At the end of the loop we test for "if (maxloop && !cnt)" but for
the first two loops, we end with cnt equal to -1. Changing this to
a pre-op means we end with cnt set to 0.
Fixes: cae86d4a4e ('mISDN: Add driver for Infineon ISDN chipset family')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The function can return negative values, so its result should
be assigned to signed variable.
The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].
[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107
Fixes: fc48866f7 ('net/mlx4: Adapt code for N-Port VF')
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
An AP can send an operating channel width change in a beacon
opmode notification IE as long as there's a change in the nss as
well (See 802.11ac-2013 section 10.41).
So don't limit updating to nss only from an opmode notification IE.
Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When the AP is advertising limited TX power, the message can be
printed over and over again. Suppress it when the power level
isn't changing.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=106011
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
During reprogramming, mac80211 currently first adds all the channel
contexts, then binds them to the vifs and then goes to reconfigure
all the interfaces. Drivers might, perhaps implicitly, rely on the
operation order for certain things that typically happen within a
single function elsewhere in mac80211. To avoid problems with that,
reorder the code in mac80211's restart/reprogramming to work fully
within the interface loop so that the order of operations is like
in normal operation.
For iwlwifi, this fixes a firmware crash when reprogramming with an
AP/GO interface active.
Reported-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When reconfiguration during resume fails while a scan is pending
for completion work, that work will never run, and the scan will
be stuck forever. Factor out the code to recover this and call it
also in ieee80211_handle_reconfig_failure().
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Free cached keys if the last early return path is taken.
Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Compared to cfg80211_rdev_free_wowlan in core.h,
the error goto label lacks the freeing of nd_config.
Fix that.
Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The first leak occurs when entering the default case
in the switch for the initiator in set_regdom.
The second leaks a platform_device struct if the
platform registration in regulatory_init succeeds but
the sub sequent regulatory hint fails due to no memory.
Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
__user_swpX_asm maybe failed in first STREX operation, emulate_swpX
will try again, but the *data has been changed in first time. which
causes the result is wrong.
This patch is to fix this issue. When STREX succeed, change the *data.
if it fail, *data is not changed.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
In cpu_v7_do_suspend routine, r11 is used while it is NOT
saved/restored, different compiler may have different usage
of ARM general registers, so it may cause issues during
calling cpu_v7_do_suspend.
We meet kernel fault occurs when using GCC 4.8.3, r11 contains
valid value before calling into cpu_v7_do_suspend, but when returned
from this routine, r11 is corrupted and lead to kernel fault.
Doing save/restore for those corrupted registers is a must in
assemble code.
Signed-off-by: Anson Huang <Anson.Huang@freescale.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Cc: <stable@vger.kernel.org> # v3.3+
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The uaccess_with_memcpy() code is currently incompatible with the SW
PAN code: it takes locks within the region that we've changed the DACR,
potentially sleeping as a result. As we do not save and restore the
DACR across co-operative sleep events, can lead to an incorrect DACR
value later in this code path.
Reported-by: Peter Rosin <peda@axentia.se>
Tested-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
skb_reorder_vlan_header is called after the vlan header has
been pulled. As a result the offset of the begining of
the mac header has been incrased by 4 bytes (VLAN_HLEN).
When moving the mac addresses, include this incrase in
the offset calcualation so that the mac addresses are
copied correctly.
Fixes: a6e18ff111 (vlan: Fix untag operations of stacked vlans with REORDER_HEADER off)
CC: Nicolas Dichtel <nicolas.dichtel@6wind.com>
CC: Patrick McHardy <kaber@trash.net>
Signed-off-by: Vladislav Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Reported-by: Dmitry Vyukov <dvyukov@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ethernet AVB does not support 10 Mbps transfer speed.
Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The driver never calls cpu_to_edmac() when writing the descriptor address
and edmac_to_cpu() when reading it, although it should -- fix this.
Note that the frame/buffer length descriptor field accesses also need fixing
but since they are both 16-bit we can't use {cpu|edmac}_to_{edmac|cpu}()...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For the little-endian SH771x kernels the driver has to byte-swap the RX/TX
buffers, however yet unset physcial address from the TX descriptor is used
to call sh_eth_soft_swap(). Use 'skb->data' instead...
Fixes: 31fcb99d99 ("net: sh_eth: remove __flush_purge_region")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Wilder reported crashes caused by dst reuse.
<quote David>
I am seeing a crash on a distro V4.2.3 kernel caused by a double
release of a dst_entry. In ipv4_dst_destroy() the call to
list_empty() finds a poisoned next pointer, indicating the dst_entry
has already been removed from the list and freed. The crash occurs
18 to 24 hours into a run of a network stress exerciser.
</quote>
Thanks to his detailed report and analysis, we were able to understand
the core issue.
IP early demux can associate a dst to skb, after a lookup in TCP/UDP
sockets.
When socket cache is not properly set, we want to store into
sk->sk_dst_cache the dst for future IP early demux lookups,
by acquiring a stable refcount on the dst.
Problem is this acquisition is simply using an atomic_inc(),
which works well, unless the dst was queued for destruction from
dst_release() noticing dst refcount went to zero, if DST_NOCACHE
was set on dst.
We need to make sure current refcount is not zero before incrementing
it, or risk double free as David reported.
This patch, being a stable candidate, adds two new helpers, and use
them only from IP early demux problematic paths.
It might be possible to merge in net-next skb_dst_force() and
skb_dst_force_safe(), but I prefer having the smallest patch for stable
kernels : Maybe some skb_dst_force() callers do not expect skb->dst
can suddenly be cleared.
Can probably be backported back to linux-3.6 kernels
Reported-by: David J. Wilder <dwilder@us.ibm.com>
Tested-by: David J. Wilder <dwilder@us.ibm.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The way the mode probing works is this:
1. All modes currently on the mode list are marked as UNVERIFIED
2. New modes are on the probed_modes list (they start with
status OK)
3. Modes are moved from the probed_modes list to the actual
mode list. If a mode already on the mode list is deemed
to match one of the probed modes, the duplicate is dropped
and the mode status updated to OK. After this the
probed_modes list will be empty.
4. All modes on the mode list are verified to not violate any
constraints. Any that do are marked as such.
5. Any mode left with a non-OK status is pruned from the list,
with an appropriate debug message.
What all this means is that any mode on the original list that
didn't have a duplicate on the probed_modes list, should be left
with status UNVERFIED (or previously could have been left with
some other status, but never OK).
I broke that in
commit 05acaec334 ("drm: Reorganize probed mode validation")
by always assigning something to the mode->status during the validation
step. So any mode from the old list that still passed the validation
would be left on the list with status OK in the end.
Fix this by not doing the basic mode validation unless the mode
already has status OK (meaning it came from the probed_modes list,
or at least a duplicate of it was on that list). This way we will
correctly prune away any mode from the old mode list that didn't
appear on the probed_modes list.
Cc: stable@vger.kernel.org
Cc: Adam Jackson <ajax@redhat.com>
Fixes: 05acaec334 ("drm: Reorganize probed mode validation")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1449177255-9515-2-git-send-email-ville.syrjala@linux.intel.com
Testcase: igt/kms_force_connector_basic/prune-stale-modes
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93332
[danvet: Also applying to drm-misc to avoid too much conflict hell -
there's a big pile of patches from Ville on top of this one.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Here are some i915 fixes for v4.4, sorry for being late this week.
* tag 'drm-intel-fixes-2015-12-11' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Do a better job at disabling primary plane in the noatomic case.
drm/i915/skl: Double RC6 WRL always on
drm/i915/skl: Disable coarse power gating up until F0
drm/i915: Remove incorrect warning in context cleanup
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=hSBP
-----END PGP SIGNATURE-----
Merge tag 'omapdrm-4.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-fixes
omapdrm fix for 4.4
* tag 'omapdrm-4.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
drm/omap: fix fbdev pix format to support all platforms
Commit 3365711df0 ("sh_eth: WARN on access to a register not implemented in
in a particular chip") added WARN_ON() to sh_eth_{read|write}(), thus making
it unacceptable for these functions to be *inline* anymore. Remove *inline*
and move the functions from the header to the driver itself. Below is our
code economy with ARM gcc 4.7.3:
$ size drivers/net/ethernet/renesas/sh_eth.o{~,}
text data bss dec hex filename
32489 1140 0 33629 835d drivers/net/ethernet/renesas/sh_eth.o~
25413 1140 0 26553 67b9 drivers/net/ethernet/renesas/sh_eth.o
Suggested-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
dwmac-sunxi has 2 callbacks that were called from stmmac_platform as
part of the probe and remove sequences.
Ater the conversion of dwmac-sunxi into a standalone platform driver,
the .init function is called before calling into the stmmac driver
core, but .exit is not called to clean up if stmmac returns an error.
This patch fixes the probe error path. This properly cleans up and
releases resources when the driver core fails to probe.
Cc: Joachim Eastwood <manabian@gmail.com>
Fixes: 9a9e9a1ede ("stmmac: dwmac-sunxi: turn setup callback into a
probe function")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
郭永刚 reported that one could simply crash the kernel as root by
using a simple program:
int socket_fd;
struct sockaddr_in addr;
addr.sin_port = 0;
addr.sin_addr.s_addr = INADDR_ANY;
addr.sin_family = 10;
socket_fd = socket(10,3,0x40000000);
connect(socket_fd , &addr,16);
AF_INET, AF_INET6 sockets actually only support 8-bit protocol
identifiers. inet_sock's skc_protocol field thus is sized accordingly,
thus larger protocol identifiers simply cut off the higher bits and
store a zero in the protocol fields.
This could lead to e.g. NULL function pointer because as a result of
the cut off inet_num is zero and we call down to inet_autobind, which
is NULL for raw sockets.
kernel: Call Trace:
kernel: [<ffffffff816db90e>] ? inet_autobind+0x2e/0x70
kernel: [<ffffffff816db9a4>] inet_dgram_connect+0x54/0x80
kernel: [<ffffffff81645069>] SYSC_connect+0xd9/0x110
kernel: [<ffffffff810ac51b>] ? ptrace_notify+0x5b/0x80
kernel: [<ffffffff810236d8>] ? syscall_trace_enter_phase2+0x108/0x200
kernel: [<ffffffff81645e0e>] SyS_connect+0xe/0x10
kernel: [<ffffffff81779515>] tracesys_phase2+0x84/0x89
I found no particular commit which introduced this problem.
CVE: CVE-2015-8543
Cc: Cong Wang <cwang@twopensource.com>
Reported-by: 郭永刚 <guoyonggang@360.cn>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
mdiobus_alloc() might return NULL, but its return value is not
checked in mdio_mux_init(). This could potentially lead to a NULL
pointer dereference. Fix it by checking the return value
Fixes: 0ca2997d14 ("netdev/of/phy: Add MDIO bus multiplexer support.")
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
The commit 33db4125ec ("openvswitch: Rename LABEL->LABELS") left
over an old OVS_CT_ATTR_LABEL instance, fix it.
Fixes: 33db4125ec ("openvswitch: Rename LABEL->LABELS")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Joe Stringer <joe@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
netfilter fixes for net
The following patchset contains Netfilter fixes for you net tree,
specifically for nf_tables and nfnetlink_queue, they are:
1) Avoid a compilation warning in nfnetlink_queue that was introduced
in the previous merge window with the simplification of the conntrack
integration, from Arnd Bergmann.
2) nfnetlink_queue is leaking the pernet subsystem registration from
a failure path, patch from Nikolay Borisov.
3) Pass down netns pointer to batch callback in nfnetlink, this is the
largest patch and it is not a bugfix but it is a dependency to
resolve a splat in the correct way.
4) Fix a splat due to incorrect socket memory accounting with nfnetlink
skbuff clones.
5) Add missing conntrack dependencies to NFT_DUP_IPV4 and NFT_DUP_IPV6.
6) Traverse the nftables commit list in reverse order from the commit
path, otherwise we crash when the user applies an incremental update
via 'nft -f' that deletes an object that was just introduced in this
batch, from Xin Long.
Regarding the compilation warning fix, many people have sent us (and
keep sending us) patches to address this, that's why I'm including this
batch even if this is not critical.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
omap_fbdev always creates a framebuffer with ARGB8888 pixel format. On
OMAP3 we have VIDEO1 overlay that does not support ARGB8888, and on
OMAP2 none of the overlays support ARGB888.
This patch changes the omap_fbdev's fb to XRGB8888, which is supported
by all platforms.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The VRF driver cycles netdevs when an interface is enslaved or released:
the down event is used to flush neighbor and route tables and the up
event (if the interface was already up) effectively moves local and
connected routes to the proper table.
As of 4f823defdd the local route is left hanging around after a link
down, so when a netdev is moved from one VRF to another (or released
from a VRF altogether) local routes are left in the wrong table.
Fix by handling the NETDEV_CHANGEUPPER event. When the upper dev is
an L3mdev then call fib_disable_ip to flush all routes, local ones
to.
Fixes: 4f823defdd ("ipv4: fix to not remove local route on link down")
Cc: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
printf() has a dedicated specifier to print MAC addresses. Use it instead of
pushing each byte via stack.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mark address pointer with __iomem in the IO accessors.
Otherwise we will get a sparse complain like following
.../hns/hns_dsaf_reg.h:991:36: warning: incorrect type in argument 1 (different address spaces)
.../hns/hns_dsaf_reg.h:991:36: expected unsigned char [noderef] [usertype] <asn:2>*base
.../hns/hns_dsaf_reg.h:991:36: got void *base
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jan Stancek reported that I wrecked things for him by fixing things for
Vladimir :/
His report was due to an UNINTERRUPTIBLE wait getting -EINTR, which
should not be possible, however my previous patch made this possible by
unconditionally checking signal_pending().
We cannot use current->state as was done previously, because the
instruction after the store to that variable it can be changed. We must
instead pass the initial state along and use that.
Fixes: 68985633bc ("sched/wait: Fix signal handling in bit wait helpers")
Reported-by: Jan Stancek <jstancek@redhat.com>
Reported-by: Chris Mason <clm@fb.com>
Tested-by: Jan Stancek <jstancek@redhat.com>
Tested-by: Vladimir Murzin <vladimir.murzin@arm.com>
Tested-by: Chris Mason <clm@fb.com>
Reviewed-by: Paul Turner <pjt@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: tglx@linutronix.de
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: hpa@zytor.com
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When we use 'nft -f' to submit rules, it will build multiple rules into
one netlink skb to send to kernel, kernel will process them one by one.
meanwhile, it add the trans into commit_list to record every commit.
if one of them's return value is -EAGAIN, status |= NFNL_BATCH_REPLAY
will be marked. after all the process is done. it will roll back all the
commits.
now kernel use list_add_tail to add trans to commit, and use
list_for_each_entry_safe to roll back. which means the order of adding
and rollback is the same. that will cause some cases cannot work well,
even trigger call trace, like:
1. add a set into table foo [return -EAGAIN]:
commit_list = 'add set trans'
2. del foo:
commit_list = 'add set trans' -> 'del set trans' -> 'del tab trans'
then nf_tables_abort will be called to roll back:
firstly process 'add set trans':
case NFT_MSG_NEWSET:
trans->ctx.table->use--;
list_del_rcu(&nft_trans_set(trans)->list);
it will del the set from the table foo, but it has removed when del
table foo [step 2], then the kernel will panic.
the right order of rollback should be:
'del tab trans' -> 'del set trans' -> 'add set trans'.
which is opposite with commit_list order.
so fix it by rolling back commits with reverse order in nf_tables_abort.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Pull timer fixlets from Thomas Gleixner:
"Two trivial fixes which add missing header fileas and forward
declarations so the code will compile even when the magic include
chains are different"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic-v3: Add missing include for barrier.h
irqchip/gic-v3: Add missing struct device_node declaration
