Kyungtae Kim detected a potential integer overflow in bcm_[rx|tx]_setup()
when the conversion into ktime multiplies the given value with NSEC_PER_USEC
(1000).
Reference: https://marc.info/?l=linux-can&m=154732118819828&w=2
Add a check for the given tv_usec, so that the value stays below one second.
Additionally limit the tv_sec value to a reasonable value for CAN related
use-cases of 400 days and ensure all values to be positive.
Reported-by: Kyungtae Kim <kt0755@gmail.com>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: linux-stable <stable@vger.kernel.org> # >= 2.6.26
Tested-by: Kyungtae Kim <kt0755@gmail.com>
Acked-by: Andre Naujoks <nautsch2@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This patch revert commit 7da11ba5c5
("can: dev: __can_get_echo_skb(): print error message, if trying to echo non existing skb")
After introduction of this change we encountered following new error
message on various i.MX plattforms (flexcan):
| flexcan 53fc8000.can can0: __can_get_echo_skb: BUG! Trying to echo non
| existing skb: can_priv::echo_skb[0]
The introduction of the message was a mistake because
priv->echo_skb[idx] = NULL is a perfectly valid in following case: If
CAN_RAW_LOOPBACK is disabled (setsockopt) in applications, the pkt_type
of the tx skb's given to can_put_echo_skb is set to PACKET_LOOPBACK. In
this case can_put_echo_skb will not set priv->echo_skb[idx]. It is
therefore kept NULL.
As additional argument for revert: The order of check and usage of idx
was changed. idx is used to access an array element before checking it's
boundaries.
Signed-off-by: Manfred Schlaegl <manfred.schlaegl@ginzinger.com>
Fixes: 7da11ba5c5 ("can: dev: __can_get_echo_skb(): print error message, if trying to echo non existing skb")
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Although TMDS clock is required for HDMI to properly function,
nobody called clk_prepare_enable(). This fixes reference counting
issues and makes sure clock is running when it needs to be running.
Due to TDMS clock being parent clock for DDC clock, TDMS clock
was turned on/off for each EDID probe, causing spurious failures
for certain HDMI/DVI screens.
Fixes: 9c5681011a ("drm/sun4i: Add HDMI support")
Signed-off-by: Priit Laes <priit.laes@paf.com>
[Maxime: Moved the TMDS clock enable earlier]
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190122073232.7240-1-plaes@plaes.org
The geni set/get_mctrl() functions currently do nothing unless
hardware flow control is enabled. Remove this arbitrary limitation.
Suggested-by: Johan Hovold <johan@kernel.org>
Fixes: 8a8a66a1a1 ("tty: serial: qcom_geni_serial: Add support for flow control")
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The SPDX license identifier and the boiler plate text are
contradicting. Only the SPDX license identifier is needed. The
other one is removed.
Fixes: 86958dcc5a ("mmc: dw_mmc-bluefield: Add driver extension")
Cc: stable@vger.kernel.org
Reviewed-by: David Woods <dwoods@mellanox.com>
Signed-off-by: Liming Sun <lsun@mellanox.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Fix some oversights in the XArray porcelain API:
- support for m68k's two-byte aligned pointers
- reserving entries using xa_insert()
- missing xa_insert_bh() and xa_insert_irq() functions
- simplify using xa_for_each()
- use lockdep correctly
- a few other minor fixes and improvements
-----BEGIN PGP SIGNATURE-----
iQFIBAABCgAyFiEEejHryeLBw/spnjHrDpNsjXcpgj4FAlxGjXAUHHdpbGx5QGlu
ZnJhZGVhZC5vcmcACgkQDpNsjXcpgj5L4Qf8DQaaA9aDsZ66CGaxExfxiEMM2SEl
Ns02XTgVWvXUPI2zHU6oZGBgWOY2jysy688WJZH7FlFJVzHytbZ26ZG6sabVD271
WQJnjSeZwNnCF0ZJP/mbr6SKkZHOaAxWRgeXJQFPvke58gMxj9w7a2qU5OEBcbS2
nUCk5LzqQHveH0UYQJJGvKca/p8f2h0Y28+BG5YRWo1ivEDAf6LaD2ItTOv5Jf/4
lfaW48h/ObBNMaor+0fn8Po5TtP9R8vgBGDt5XRjiTy0yXEq62HwTCHjOydqywTA
pyEN8zZMtOwDjz9eEm+WPR3bLcOmLK+i0+oRFpM7tNl+iq/i0DCjxpJ+eQ==
=56qs
-----END PGP SIGNATURE-----
Merge tag 'xarray-5.0-rc3' of git://git.infradead.org/users/willy/linux-dax
Pull XArray fixes from Matthew Wilcox:
"Fix some oversights in the XArray porcelain API:
- support for m68k's two-byte aligned pointers
- reserving entries using xa_insert()
- missing xa_insert_bh() and xa_insert_irq() functions
- simplify using xa_for_each()
- use lockdep correctly
- a few other minor fixes and improvements"
* tag 'xarray-5.0-rc3' of git://git.infradead.org/users/willy/linux-dax:
XArray: Fix an arithmetic error in xa_is_err
XArray tests: Check mark 2 gets squashed
XArray: Fix typo in comment
XArray: Honour reserved entries in xa_insert
XArray: Permit storing 2-byte-aligned pointers
XArray: Change xa_for_each iterator
XArray: Turn xa_init_flags into a static inline
XArray tests: Add RCU locking
gfxclk for OD setting is limited to 1980M for non-acg
ASICs of Vega10
Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
One fix only for now:
- Fix probe deferral in iommu/of code (broke with recent changes
to iommu_ops->add_device invocation)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=+93K
-----END PGP SIGNATURE-----
Merge tag 'iommu-fixes-v5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fix from Joerg Roedel:
"One fix only for now: Fix probe deferral in iommu/of code (broke with
recent changes to iommu_ops->add_device invocation)"
* tag 'iommu-fixes-v5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/of: Fix probe-deferral
- Perf support for raw events
- boot log printing: return stack, action points
- fix memset to avoid prefetchw bleeding past end of buffer
- do_page_fault fix for mmap_sem held while returning to userspace
- other miscll fixes
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=QMUe
-----END PGP SIGNATURE-----
Merge tag 'arc-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC architecture updates from Vineet Gupta:
- Perf support for raw events
- boot log printing: return stack, action points
- fix memset to avoid prefetchw bleeding past end of buffer
- do_page_fault fix for mmap_sem held while returning to userspace
- other misc fixes
* tag 'arc-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARCv2: lib: memeset: fix doing prefetchw outside of buffer
ARC: mm: do_page_fault fixes#1: relinquish mmap_sem if signal arrives while handle_mm_fault
ARC: show_regs: lockdep: re-enable preemption
ARC: show_regs: lockdep: avoid page allocator...
ARC: perf: avoid kernel killing where it is possible
ARC: perf: move HW events mapping to separate function
ARC: perf: introduce Kernel PMU events support
ARC: perf: trivial code cleanup
ARC: perf: map generic branches to correct hardware condition
ARC: adjust memblock_reserve of kernel memory
arc: remove redundant kernel-space generic-y
ARC: fix __ffs return value to avoid build warnings
ARC: boot log: print Action point details
ARCv2: boot log: BPU return stack depth
The _DSM function number validation only happens to succeed when the
generic Linux command number translation corresponds with a
DSM-family-specific function number. This breaks NVDIMM-N
implementations that correctly implement _LSR, _LSW, and _LSI, but do
not happen to publish support for DSM function numbers 4, 5, and 6.
Recall that the support for _LS{I,R,W} family of methods results in the
DIMM being marked as supporting those command numbers at
acpi_nfit_register_dimms() time. The DSM function mask is only used for
ND_CMD_CALL support of non-NVDIMM_FAMILY_INTEL devices.
Fixes: 31eca76ba2 ("nfit, libnvdimm: limited/whitelisted dimm command...")
Cc: <stable@vger.kernel.org>
Link: https://github.com/pmem/ndctl/issues/78
Reported-by: Sujith Pandel <sujith_pandel@dell.com>
Tested-by: Sujith Pandel <sujith_pandel@dell.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
In preparation for using function number 0 as an error value, prevent it
from being considered a valid function value by acpi_nfit_ctl().
Cc: <stable@vger.kernel.org>
Cc: stuart hayes <stuart.w.hayes@gmail.com>
Fixes: e02fb7264d ("nfit: add Microsoft NVDIMM DSM command set...")
Reported-by: Jeff Moyer <jmoyer@redhat.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
The following warning:
ACPI0012:00: security event setup failed: -19
...is meant to capture exceptional failures of sysfs_get_dirent(),
however it will also fail in the common case when security support is
disabled. A few issues:
1/ A dev_warn() report for a common case is too chatty
2/ The setup of this notifier is generic, no need for it to be driven
from the nfit driver, it can exist completely in the core.
3/ If it fails for any reason besides security support being disabled,
that's fatal and should abort DIMM activation. Userspace may hang if
it never gets overwrite notifications.
4/ The dirent needs to be released.
Move the call to the core 'dimm' driver, make it conditional on security
support being active, make it fatal for the exceptional case, add the
missing sysfs_put() at device disable time.
Fixes: 7d988097c5 ("...Add security DSM overwrite support")
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
The override status function needs to be updated to use the proper
request parameter in order to get the security state.
Fixes: 3c13e2ac74 ("...Add test support for Intel nvdimm security DSMs")
Reported-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Some tty line disciplines do not have a receive buf callback, so
properly check for that before calling it. If they do not have this
callback, just eat the character quietly, as we can't fail this call.
Reported-by: Jann Horn <jannh@google.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The risk of redundant IO accounting was not taken into consideration
when commit 18a25da843 ("dm: ensure bio submission follows a
depth-first tree walk") introduced IO splitting in terms of recursion
via generic_make_request().
Fix this by subtracting the split bio's payload from the IO stats that
were already accounted for by start_io_acct() upon dm_make_request()
entry. This repeat oscillation of the IO accounting, up then down,
isn't ideal but refactoring DM core's IO splitting to pre-split bios
_before_ they are accounted turned out to be an excessive amount of
change that will need a full development cycle to refine and verify.
Before this fix:
/dev/mapper/stripe_dev is a 4-way stripe using a 32k chunksize, so
bios are split on 32k boundaries.
# fio --name=16M --filename=/dev/mapper/stripe_dev --rw=write --bs=64k --size=16M \
--iodepth=1 --ioengine=libaio --direct=1 --refill_buffers
with debugging added:
[103898.310264] device-mapper: core: start_io_acct: dm-2 WRITE bio->bi_iter.bi_sector=0 len=128
[103898.318704] device-mapper: core: __split_and_process_bio: recursing for following split bio:
[103898.329136] device-mapper: core: start_io_acct: dm-2 WRITE bio->bi_iter.bi_sector=64 len=64
...
16M written yet 136M (278528 * 512b) accounted:
# cat /sys/block/dm-2/stat | awk '{ print $7 }'
278528
After this fix:
16M written and 16M (32768 * 512b) accounted:
# cat /sys/block/dm-2/stat | awk '{ print $7 }'
32768
Fixes: 18a25da843 ("dm: ensure bio submission follows a depth-first tree walk")
Cc: stable@vger.kernel.org # 4.16+
Reported-by: Bryan Gurney <bgurney@redhat.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
DM's clone_bio() now benefits from using bio_trim() by fixing the fact
that clone_bio() wasn't clearing BIO_SEG_VALID like bio_trim() does;
which triggers blk_recount_segments() via bio_phys_segments().
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Support speaker and mic mute LEDs on HP ProBook 470 G5.
BugLink: https://bugs.launchpad.net/bugs/1811254
Signed-off-by: Anthony Wong <anthony.wong@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Precise and non-ambiguous license information is important. The recently
added quota.c file has a SPDX license identifier, which is nice, but
at the same time it has a contradictionary license boiler plate text.
SPDX-License-Identifier: GPL-2.0
versus
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
Oh well.
As the other ceph related files are licensed under the GPL v2 only, it's
assumed that the SPDX id is correct and the boiler plate was randomly
copied into that patch.
Remove the boiler plate as it is wrong and even if correct it is redundant.
Fixes: fb18a57568 ("ceph: quota: add initial infrastructure to support cephfs quotas")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Luis Henriques <lhenriques@suse.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: "Yan, Zheng" <zyan@redhat.com>
Cc: Sage Weil <sage@redhat.com>
Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: ceph-devel@vger.kernel.org
Acked-by: Luis Henriques <lhenriques@suse.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
con_fault() can transition the connection into STANDBY right after
ceph_con_keepalive() clears STANDBY in clear_standby():
libceph user thread ceph-msgr worker
ceph_con_keepalive()
mutex_lock(&con->mutex)
clear_standby(con)
mutex_unlock(&con->mutex)
mutex_lock(&con->mutex)
con_fault()
...
if KEEPALIVE_PENDING isn't set
set state to STANDBY
...
mutex_unlock(&con->mutex)
set KEEPALIVE_PENDING
set WRITE_PENDING
This triggers warnings in clear_standby() when either ceph_con_send()
or ceph_con_keepalive() get to clearing STANDBY next time.
I don't see a reason to condition queue_con() call on the previous
value of KEEPALIVE_PENDING, so move the setting of KEEPALIVE_PENDING
into the critical section -- unlike WRITE_PENDING, KEEPALIVE_PENDING
could have been a non-atomic flag.
Reported-by: syzbot+acdeb633f6211ccdf886@syzkaller.appspotmail.com
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Tested-by: Myungho Jung <mhjungk@gmail.com>
snap realm and corresponding inode have pointers to each other.
The two pointer should get clear at the same time. Otherwise,
snap realm's pointer may reference freed inode.
Cc: stable@vger.kernel.org # 4.17+
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Luis Henriques <lhenriques@suse.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Because wake_q_add() can imply an immediate wakeup (cmpxchg failure
case), we must not rely on the wakeup being delayed. However, commit:
e38513905e ("locking/rwsem: Rework zeroing reader waiter->task")
relies on exactly that behaviour in that the wakeup must not happen
until after we clear waiter->task.
[ peterz: Added changelog. ]
Signed-off-by: Xie Yongji <xieyongji@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: e38513905e ("locking/rwsem: Rework zeroing reader waiter->task")
Link: https://lkml.kernel.org/r/1543495830-2644-1-git-send-email-xieyongji@baidu.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
We must not rely on wake_q_add() to delay the wakeup; in particular
commit:
1d0dcb3ad9 ("futex: Implement lockless wakeups")
moved wake_q_add() before smp_store_release(&q->lock_ptr, NULL), which
could result in futex_wait() waking before observing ->lock_ptr ==
NULL and going back to sleep again.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 1d0dcb3ad9 ("futex: Implement lockless wakeups")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Notable cmpxchg() does not provide ordering when it fails, however
wake_q_add() requires ordering in this specific case too. Without this
it would be possible for the concurrent wakeup to not observe our
prior state.
Andrea Parri provided:
C wake_up_q-wake_q_add
{
int next = 0;
int y = 0;
}
P0(int *next, int *y)
{
int r0;
/* in wake_up_q() */
WRITE_ONCE(*next, 1); /* node->next = NULL */
smp_mb(); /* implied by wake_up_process() */
r0 = READ_ONCE(*y);
}
P1(int *next, int *y)
{
int r1;
/* in wake_q_add() */
WRITE_ONCE(*y, 1); /* wake_cond = true */
smp_mb__before_atomic();
r1 = cmpxchg_relaxed(next, 1, 2);
}
exists (0:r0=0 /\ 1:r1=0)
This "exists" clause cannot be satisfied according to the LKMM:
Test wake_up_q-wake_q_add Allowed
States 3
0:r0=0; 1:r1=1;
0:r0=1; 1:r1=0;
0:r0=1; 1:r1=1;
No
Witnesses
Positive: 0 Negative: 3
Condition exists (0:r0=0 /\ 1:r1=0)
Observation wake_up_q-wake_q_add Never 0 3
Reported-by: Yongji Xie <elohimes@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Waiman Long <longman@redhat.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The only guarantee provided by wake_q_add() is that a wakeup will
happen after it, it does _NOT_ guarantee the wakeup will be delayed
until the matching wake_up_q().
If wake_q_add() fails the cmpxchg() a concurrent wakeup is pending and
that can happen at any time after the cmpxchg(). This means we should
not rely on the wakeup happening at wake_q_up(), but should be ready
for wake_q_add() to issue the wakeup.
The delay; if provided (most likely); should only result in more efficient
behaviour.
Reported-by: Yongji Xie <elohimes@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Waiman Long <longman@redhat.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
For some peculiar reason rcuwait_wake_up() has the right barrier in
the comment, but not in the code.
This mistake has been observed to cause a deadlock in the following
situation:
P1 P2
percpu_up_read() percpu_down_write()
rcu_sync_is_idle() // false
rcu_sync_enter()
...
__percpu_up_read()
[S] ,- __this_cpu_dec(*sem->read_count)
| smp_rmb();
[L] | task = rcu_dereference(w->task) // NULL
|
| [S] w->task = current
| smp_mb();
| [L] readers_active_check() // fail
`-> <store happens here>
Where the smp_rmb() (obviously) fails to constrain the store.
[ peterz: Added changelog. ]
Signed-off-by: Prateek Sood <prsood@codeaurora.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andrea Parri <andrea.parri@amarulasolutions.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 8f95c90ceb ("sched/wait, RCU: Introduce rcuwait machinery")
Link: https://lkml.kernel.org/r/1543590656-7157-1-git-send-email-prsood@codeaurora.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
- Fix console ramoops to show the previous boot logs (Sai Prakash Ranjan)
- Avoid allocation and leak of platform data
-----BEGIN PGP SIGNATURE-----
Comment: Kees Cook <kees@outflux.net>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=m6sX
-----END PGP SIGNATURE-----
Merge tag 'pstore-v5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull pstore fixes from Kees Cook:
- Fix console ramoops to show the previous boot logs (Sai Prakash
Ranjan)
- Avoid allocation and leak of platform data
* tag 'pstore-v5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
pstore/ram: Avoid allocation and leak of platform data
pstore/ram: Fix console ramoops to show the previous boot logs
Pull networking fixes from David Miller:
1) Fix endless loop in nf_tables, from Phil Sutter.
2) Fix cross namespace ip6_gre tunnel hash list corruption, from
Olivier Matz.
3) Don't be too strict in phy_start_aneg() otherwise we might not allow
restarting auto negotiation. From Heiner Kallweit.
4) Fix various KMSAN uninitialized value cases in tipc, from Ying Xue.
5) Memory leak in act_tunnel_key, from Davide Caratti.
6) Handle chip errata of mv88e6390 PHY, from Andrew Lunn.
7) Remove linear SKB assumption in fou/fou6, from Eric Dumazet.
8) Missing udplite rehash callbacks, from Alexey Kodanev.
9) Log dirty pages properly in vhost, from Jason Wang.
10) Use consume_skb() in neigh_probe() as this is a normal free not a
drop, from Yang Wei. Likewise in macvlan_process_broadcast().
11) Missing device_del() in mdiobus_register() error paths, from Thomas
Petazzoni.
12) Fix checksum handling of short packets in mlx5, from Cong Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (96 commits)
bpf: in __bpf_redirect_no_mac pull mac only if present
virtio_net: bulk free tx skbs
net: phy: phy driver features are mandatory
isdn: avm: Fix string plus integer warning from Clang
net/mlx5e: Fix cb_ident duplicate in indirect block register
net/mlx5e: Fix wrong (zero) TX drop counter indication for representor
net/mlx5e: Fix wrong error code return on FEC query failure
net/mlx5e: Force CHECKSUM_UNNECESSARY for short ethernet frames
tools: bpftool: Cleanup license mess
bpf: fix inner map masking to prevent oob under speculation
bpf: pull in pkt_sched.h header for tooling to fix bpftool build
selftests: forwarding: Add a test case for externally learned FDB entries
selftests: mlxsw: Test FDB offload indication
mlxsw: spectrum_switchdev: Do not treat static FDB entries as sticky
net: bridge: Mark FDB entries that were added by user as such
mlxsw: spectrum_fid: Update dummy FID index
mlxsw: pci: Return error on PCI reset timeout
mlxsw: pci: Increase PCI SW reset timeout
mlxsw: pci: Ring CQ's doorbell before RDQ's
MAINTAINERS: update email addresses of liquidio driver maintainers
...
Yue Hu noticed that when parsing device tree the allocated platform data
was never freed. Since it's not used beyond the function scope, this
switches to using a stack variable instead.
Reported-by: Yue Hu <huyue2@yulong.com>
Fixes: 35da60941e ("pstore/ram: add Device Tree bindings")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
GCC 9 reworks the way the references to the stack canary are
emitted, to prevent the value from being spilled to the stack
before the final comparison in the epilogue, defeating the
purpose, given that the spill slot is under control of the
attacker that we are protecting ourselves from.
Since our canary value address is obtained without accessing
memory (as opposed to pre-v7 code that will obtain it from a
literal pool), it is unlikely (although not guaranteed) that
the compiler will spill the canary value in the same way, so
let's just disable this improvement when building with GCC9+.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
The ARM per-task stack protector GCC plugin hits an assert in
the compiler in some case, due to the fact the the SP mask
expression is not sign-extended as it should be. So fix that.
Suggested-by: Kugan Vivekanandarajah <kugan.vivekanandarajah@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
fixes and cleanups all over the place
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-----BEGIN PGP SIGNATURE-----
iQEcBAABAgAGBQJcPTc7AAoJECgfDbjSjVRpOEgH/Ahdx7VMYJtFsdmoJKiwhB7M
jRRi9R903V9H87vl1BXy6dutHw+WONJtm6FSZ1ayNWlVmUmWS6vci+IUErr2uDrv
KSG+dJMQLlF7t1dnLRwlLazvGa4/58+u0J459uKPQ5ckqwV5wXPjUS5Z0xF3ldxM
Twz6vhYRGKCUc10YZm/WmsjlLROgaNtRya10PzAGVmXPzbCpvJfiojKWJER+Eigq
JxWynTCm/YvIk824Ls9cDBVkDvb8GPS3blVbFnusR+D3ktvX7vLDPOsErGn4umVS
nUm3/WiQALB9fKer+SsgcEGVh+fa06KIITK+IBblULmrAIT3CJdJp70UJBjfdTM=
=DCkE
-----END PGP SIGNATURE-----
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio/vhost fixes and cleanups from Michael Tsirkin:
"Fixes and cleanups all over the place"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost/scsi: Use copy_to_iter() to send control queue response
vhost: return EINVAL if iovecs size does not match the message size
virtio-balloon: tweak config_changed implementation
virtio: don't allocate vqs when names[i] = NULL
virtio_pci: use queue idx instead of array idx to set up the vq
virtio: document virtio_config_ops restrictions
virtio: fix virtio_config_ops description
-----BEGIN PGP SIGNATURE-----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=hGlM
-----END PGP SIGNATURE-----
Merge tag 'for-5.0-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A handful of fixes (some of them in testing for a long time):
- fix some test failures regarding cleanup after transaction abort
- revert of a patch that could cause a deadlock
- delayed iput fixes, that can help in ENOSPC situation when there's
low space and a lot data to write"
* tag 'for-5.0-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: wakeup cleaner thread when adding delayed iput
btrfs: run delayed iputs before committing
btrfs: wait on ordered extents on abort cleanup
btrfs: handle delayed ref head accounting cleanup in abort
Revert "btrfs: balance dirty metadata pages in btrfs_finish_ordered_io"
- A fix for OPTIMIZER_HIDE_VAR
From Michael S. Tsirkin
-----BEGIN PGP SIGNATURE-----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=2ce7
-----END PGP SIGNATURE-----
mergetag object 99e309b6ed
type commit
tag clang-format-for-linus-v5.0-rc3
tagger Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> 1547999145 +0100
clang-format changes:
- Update of the for_each macro list
From Jason Gunthorpe
-----BEGIN PGP SIGNATURE-----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=mM3e
-----END PGP SIGNATURE-----
Merge tags 'compiler-attributes-for-linus-v5.0-rc3' and 'clang-format-for-linus-v5.0-rc3' of git://github.com/ojeda/linux
Pull misc clang fixes from Miguel Ojeda:
- A fix for OPTIMIZER_HIDE_VAR from Michael S Tsirkin
- Update clang-format with the latest for_each macro list from Jason
Gunthorpe
* tag 'compiler-attributes-for-linus-v5.0-rc3' of git://github.com/ojeda/linux:
include/linux/compiler*.h: fix OPTIMIZER_HIDE_VAR
* tag 'clang-format-for-linus-v5.0-rc3' of git://github.com/ojeda/linux:
clang-format: Update .clang-format with the latest for_each macro list
If an input number x for int_sqrt64() has the highest bit set, then
fls64(x) is 64. (1UL << 64) is an overflow and breaks the algorithm.
Subtracting 1 is a better guess for the initial value of m anyway and
that's what also done in int_sqrt() implicitly [*].
[*] Note how int_sqrt() uses __fls() with two underscores, which already
returns the proper raw bit number.
In contrast, int_sqrt64() used fls64(), and that returns bit numbers
illogically starting at 1, because of error handling for the "no
bits set" case. Will points out that he bug probably is due to a
copy-and-paste error from the regular int_sqrt() case.
Signed-off-by: Florian La Roche <Florian.LaRoche@googlemail.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 594cc251fd ("make 'user_access_begin()' do 'access_ok()'")
makes the access_ok() check part of the user_access_begin() preceding a
series of 'unsafe' accesses. This has the desirable effect of ensuring
that all 'unsafe' accesses have been range-checked, without having to
pick through all of the callsites to verify whether the appropriate
checking has been made.
However, the consolidated range check does not inhibit speculation, so
it is still up to the caller to ensure that they are not susceptible to
any speculative side-channel attacks for user addresses that ultimately
fail the access_ok() check.
This is an oversight, so use __uaccess_begin_nospec() to ensure that
speculation is inhibited until the access_ok() check has passed.
Reported-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix broken kpti page-table rewrite in bizarre KASLR configuration
- Fix module loading with KASLR
- Remove redundant definition of ARCH_SLAB_MINALIGN
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAlxDkU8ACgkQt6xw3ITB
YzRSeggAsvhxwa0Yg61A/s3tuaSO+kb6U6QXCVZSBw5F6tn3TPm7txoLlq+kUFoq
gcQ5RFzoGaW27TQafWQHVWcwYVWHYAc4WqSLQBQDMDPRpA0WR7sx/WUaxPdBDHt1
qLYHTKs68oTCdHMbvugNQhvBEt9s0qAQzrBk4exPhTLxkeWYELK4F2SpSgxzJun/
K5Eg9qrl8XRCXO5TGyUT54MtZaF2utnopJOVupRpBpIjBrCY6BGSpZbWA6pcNlUr
hftyXYMB8B4VGtKWAZp8mive2PFbzH/cj/rmxWDQRl0JUfnLw3lqXyHO8fe1e8vJ
cZ6tW2shLhHzEM50OmAYnfaeTPqxcg==
=EjUI
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Three arm64 fixes for -rc3.
We've plugged a couple of nasty issues involving KASLR-enabled
kernels, and removed a redundant #define that was introduced as part
of the KHWASAN fixes from akpm at -rc2.
- Fix broken kpti page-table rewrite in bizarre KASLR configuration
- Fix module loading with KASLR
- Remove redundant definition of ARCH_SLAB_MINALIGN"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
kasan, arm64: remove redundant ARCH_SLAB_MINALIGN define
arm64: kaslr: ensure randomized quantities are clean to the PoC
arm64: kpti: Update arm64_kernel_use_ng_mappings() when forced on
Daniel Borkmann says:
====================
pull-request: bpf 2019-01-20
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix a out-of-bounds access in __bpf_redirect_no_mac, from Willem.
2) Fix bpf_setsockopt to reset sock dst on SO_MARK changes, from Peter.
3) Fix map in map masking to prevent out-of-bounds access under
speculative execution, from Daniel.
4) Fix bpf_setsockopt's SO_MAX_PACING_RATE to support TCP internal
pacing, from Yuchung.
5) Fix json writer license in bpftool, from Thomas.
6) Fix AF_XDP to check if an actually queue exists during umem
setup, from Krzysztof.
7) Several fixes to BPF stackmap's build id handling. Another fix
for bpftool build to account for libbfd variations wrt linking
requirements, from Stanislav.
8) Fix BPF samples build with clang by working around missing asm
goto, from Yonghong.
9) Fix libbpf to retry program load on signal interrupt, from Lorenz.
10) Various minor compile warning fixes in BPF code, from Mathieu.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Syzkaller was able to construct a packet of negative length by
redirecting from bpf_prog_test_run_skb with BPF_PROG_TYPE_LWT_XMIT:
BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:345 [inline]
BUG: KASAN: slab-out-of-bounds in skb_copy_from_linear_data include/linux/skbuff.h:3421 [inline]
BUG: KASAN: slab-out-of-bounds in __pskb_copy_fclone+0x2dd/0xeb0 net/core/skbuff.c:1395
Read of size 4294967282 at addr ffff8801d798009c by task syz-executor2/12942
kasan_report.cold.9+0x242/0x309 mm/kasan/report.c:412
check_memory_region_inline mm/kasan/kasan.c:260 [inline]
check_memory_region+0x13e/0x1b0 mm/kasan/kasan.c:267
memcpy+0x23/0x50 mm/kasan/kasan.c:302
memcpy include/linux/string.h:345 [inline]
skb_copy_from_linear_data include/linux/skbuff.h:3421 [inline]
__pskb_copy_fclone+0x2dd/0xeb0 net/core/skbuff.c:1395
__pskb_copy include/linux/skbuff.h:1053 [inline]
pskb_copy include/linux/skbuff.h:2904 [inline]
skb_realloc_headroom+0xe7/0x120 net/core/skbuff.c:1539
ipip6_tunnel_xmit net/ipv6/sit.c:965 [inline]
sit_tunnel_xmit+0xe1b/0x30d0 net/ipv6/sit.c:1029
__netdev_start_xmit include/linux/netdevice.h:4325 [inline]
netdev_start_xmit include/linux/netdevice.h:4334 [inline]
xmit_one net/core/dev.c:3219 [inline]
dev_hard_start_xmit+0x295/0xc90 net/core/dev.c:3235
__dev_queue_xmit+0x2f0d/0x3950 net/core/dev.c:3805
dev_queue_xmit+0x17/0x20 net/core/dev.c:3838
__bpf_tx_skb net/core/filter.c:2016 [inline]
__bpf_redirect_common net/core/filter.c:2054 [inline]
__bpf_redirect+0x5cf/0xb20 net/core/filter.c:2061
____bpf_clone_redirect net/core/filter.c:2094 [inline]
bpf_clone_redirect+0x2f6/0x490 net/core/filter.c:2066
bpf_prog_41f2bcae09cd4ac3+0xb25/0x1000
The generated test constructs a packet with mac header, network
header, skb->data pointing to network header and skb->len 0.
Redirecting to a sit0 through __bpf_redirect_no_mac pulls the
mac length, even though skb->data already is at skb->network_header.
bpf_prog_test_run_skb has already pulled it as LWT_XMIT !is_l2.
Update the offset calculation to pull only if skb->data differs
from skb->network_header, which is not true in this case.
The test itself can be run only from commit 1cf1cae963 ("bpf:
introduce BPF_PROG_TEST_RUN command"), but the same type of packets
with skb at network header could already be built from lwt xmit hooks,
so this fix is more relevant to that commit.
Also set the mac header on redirect from LWT_XMIT, as even after this
change to __bpf_redirect_no_mac that field is expected to be set, but
is not yet in ip_finish_output2.
Fixes: 3a0af8fd61 ("bpf: BPF for lightweight tunnel infrastructure")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Use napi_consume_skb() to get bulk free. Note that napi_consume_skb is
safe to call in a non-napi context as long as the napi_budget flag is
correct.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Fix IPI handling for Lantiq SoCs, which was broken by changes made
back in v4.12.
- Enable OF/DT serial support in ath79_defconfig to give us working
serial by default.
- Fix 64b builds for the Jazz platform.
- Set up a struct device for the BCM47xx SoC to allow BCM47xx drivers to
perform DMA again following the major DMA mapping changes made in
v4.19.
- Disable MSI on Cavium Octeon systems when the pcie_disable command
line parameter introduced in v3.3 is used, in order to avoid
inadvetently accessing PCIe controller registers despite the command
line.
- Fix a build failure for Cavium Octeon kernels with kexec enabled,
introduced in v4.20.
- Fix a regression in the behaviour of semctl/shmctl/msgctl IPC syscalls
for kernels including n32 support but not o32 support caused by some
cleanup in v3.19.
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXEJhqRUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN2aWwEA4ZExeZQi+g9oPNII/jd9wbLKU4Eq
xjl/+NdzPVu+pP4A/AuG5hsEMFIgS2U0k2js7kNMHCzoV9Ky2m3kdbSNHvQI
=AqoC
-----END PGP SIGNATURE-----
Merge tag 'mips_fixes_5.0_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
- Fix IPI handling for Lantiq SoCs, which was broken by changes made
back in v4.12.
- Enable OF/DT serial support in ath79_defconfig to give us working
serial by default.
- Fix 64b builds for the Jazz platform.
- Set up a struct device for the BCM47xx SoC to allow BCM47xx drivers
to perform DMA again following the major DMA mapping changes made in
v4.19.
- Disable MSI on Cavium Octeon systems when the pcie_disable command
line parameter introduced in v3.3 is used, in order to avoid
inadvetently accessing PCIe controller registers despite the command
line.
- Fix a build failure for Cavium Octeon kernels with kexec enabled,
introduced in v4.20.
- Fix a regression in the behaviour of semctl/shmctl/msgctl IPC
syscalls for kernels including n32 support but not o32 support caused
by some cleanup in v3.19.
* tag 'mips_fixes_5.0_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: OCTEON: fix kexec support
mips: fix n32 compat_ipc_parse_version
Disable MSI also when pcie-octeon.pcie_disable on
MIPS: BCM47XX: Setup struct device for the SoC
MIPS: jazz: fix 64bit build
MIPS: ath79: Enable OF serial ports in the default config
MIPS: lantiq: Use CP0_LEGACY_COMPARE_IRQ
MIPS: lantiq: Fix IPI interrupt handling
-----BEGIN PGP SIGNATURE-----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=6H3h
-----END PGP SIGNATURE-----
Merge tag 'devicetree-fixes-for-5.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree fix from Rob Herring:
"A single build fix for powerpc due to device_node.type removal"
* tag 'devicetree-fixes-for-5.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
powerpc: chrp: Use of_node_is_type to access device_type
* Fix driver initialization crash due to the inability to report an
'error' state for a DIMM's security capability.
* Build warning fix for little-endian ARM64 builds
* Fix a potential race between the EDAC driver's usage of the NFIT
SMBIOS id for a DIMM and the driver shutdown path.
* A small collection of one-line benign cleanups for duplicate variable
assignments, a duplicate header include and a mis-typed function
argument.
-----BEGIN PGP SIGNATURE-----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=HCIs
-----END PGP SIGNATURE-----
Merge tag 'libnvdimm-fixes-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"A crash fix, a build warning fix, a miscellaneous small cleanups.
In case anyone is looking for them, there was a regression caught by
testing that caused two patches to be dropped from this update. Those
patches have been reworked and will soak for another week / re-target
5.0-rc4.
- Fix driver initialization crash due to the inability to report an
'error' state for a DIMM's security capability.
- Build warning fix for little-endian ARM64 builds
- Fix a potential race between the EDAC driver's usage of the NFIT
SMBIOS id for a DIMM and the driver shutdown path.
- A small collection of one-line benign cleanups for duplicate
variable assignments, a duplicate header include and a mis-typed
function argument"
* tag 'libnvdimm-fixes-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm/security: Fix nvdimm_security_state() state request selection
acpi/nfit: Remove duplicate set nd_set in acpi_nfit_init_interleave_set()
acpi/nfit: Fix race accessing memdev in nfit_get_smbios_id()
libnvdimm/dimm: Fix security capability detection for non-Intel NVDIMMs
nfit: Mark some functions as __maybe_unused
ACPI/nfit: delete the function to_acpi_nfit_desc
ACPI/nfit: delete the redundant header file
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.14 (GNU/Linux)
iEYEABECAAYFAlxDCwIACgkQ+iyteGJfRsq2qwCgxfbjmuRPmmo9qfFF9/0TNLGY
aJkAniMRSsJzw1BhfW4+7841jPAZm3EV
=ZUhJ
-----END PGP SIGNATURE-----
Merge tag 'linux-watchdog-5.0-rc-fixes' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
- mt7621_wdt/rt2880_wdt: Fix compilation problem
- tqmx86: Fix a couple IS_ERR() vs NULL bugs
* tag 'linux-watchdog-5.0-rc-fixes' of git://www.linux-watchdog.org/linux-watchdog:
watchdog: tqmx86: Fix a couple IS_ERR() vs NULL bugs
watchdog: mt7621_wdt/rt2880_wdt: Fix compilation problem
Stable bugfixes:
- Fix TCP receive code on archs with flush_dcache_page()
Other bugfixes:
- Fix error code in rpcrdma_buffer_create()
- Fix a double free in rpcrdma_send_ctxs_create()
- Fix kernel BUG at kernel/cred.c:825
- Fix unnecessary retry in nfs42_proc_copy_file_range()
- Ensure rq_bytes_sent is reset before request transmission
- Ensure we respect the RPCSEC_GSS sequence number limit
- Address Kerberos performance/behavior regression
-----BEGIN PGP SIGNATURE-----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=6Nzz
-----END PGP SIGNATURE-----
Merge tag 'nfs-for-5.0-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
"These are mostly fixes for SUNRPC bugs, with a single v4.2
copy_file_range() fix mixed in.
Stable bugfixes:
- Fix TCP receive code on archs with flush_dcache_page()
Other bugfixes:
- Fix error code in rpcrdma_buffer_create()
- Fix a double free in rpcrdma_send_ctxs_create()
- Fix kernel BUG at kernel/cred.c:825
- Fix unnecessary retry in nfs42_proc_copy_file_range()
- Ensure rq_bytes_sent is reset before request transmission
- Ensure we respect the RPCSEC_GSS sequence number limit
- Address Kerberos performance/behavior regression"
* tag 'nfs-for-5.0-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
SUNRPC: Address Kerberos performance/behavior regression
SUNRPC: Ensure we respect the RPCSEC_GSS sequence number limit
SUNRPC: Ensure rq_bytes_sent is reset before request transmission
NFSv4.2 fix unnecessary retry in nfs4_copy_file_range
sunrpc: kernel BUG at kernel/cred.c:825!
SUNRPC: Fix TCP receive code on archs with flush_dcache_page()
xprtrdma: Double free in rpcrdma_sendctxs_create()
xprtrdma: Fix error code in rpcrdma_buffer_create()
A set of 17 fixes. Most of these are minor or trivial. The one fix
that may be serious is the isci one: the bug can cause hba parameters
to be set from uninitialized memory. I don't think it's exploitable,
but you never know.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
-----BEGIN PGP SIGNATURE-----
iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCXEKL0SYcamFtZXMuYm90
dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishVZpAQCwuPTk
fqOt4v4hJ0oUHtEBsQK3VMXSdUvWdb5Lbn3WeQD/RFYTyNxcIF7ADSWw71b+IigT
ejUrMzI8ig+nZ1jbFZ4=
=BdS/
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"A set of 17 fixes. Most of these are minor or trivial.
The one fix that may be serious is the isci one: the bug can cause hba
parameters to be set from uninitialized memory. I don't think it's
exploitable, but you never know"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: cxgb4i: add wait_for_completion()
scsi: qla1280: set 64bit coherent mask
scsi: ufs: Fix geometry descriptor size
scsi: megaraid_sas: Retry reads of outbound_intr_status reg
scsi: qedi: Add ep_state for login completion on un-reachable targets
scsi: ufs: Fix system suspend status
scsi: qla2xxx: Use correct number of vectors for online CPUs
scsi: hisi_sas: Set protection parameters prior to adding SCSI host
scsi: tcmu: avoid cmd/qfull timers updated whenever a new cmd comes
scsi: isci: initialize shost fully before calling scsi_add_host()
scsi: lpfc: lpfc_sli: Mark expected switch fall-throughs
scsi: smartpqi_init: fix boolean expression in pqi_device_remove_start
scsi: core: Synchronize request queue PM status only on successful resume
scsi: pm80xx: reduce indentation
scsi: qla4xxx: check return code of qla4xxx_copy_from_fwddb_param
scsi: megaraid_sas: correct an info message
scsi: target/iscsi: fix error msg typo when create lio_qr_cache failed
scsi: sd: Fix cache_type_store()
Oliver Hartkopp