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Update TDC tests with cases varifying ability of TC to install or delete
batches of vlan actions.
Signed-off-by: Roman Mashak <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Add get_fill_size() routine used to calculate the action size
when building a batch of events.
Fixes: c7e2b9689 ("sched: introduce vlan action")
Signed-off-by: Roman Mashak <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
"A few MIPS fixes for 5.3:
- Various switch fall through annotations to fixup warnings & errors
resulting from -Wimplicit-fallthrough.
- A fix for systems (at least jazz) using an i8253 PIT as clocksource
when it's not suitably configured.
- Set struct cacheinfo's cpu_map_populated field to true, indicating
that we filled in cache info detected from cop0 registers &
avoiding complaints about that info being (intentionally) missing
in devicetree"
* tag 'mips_fixes_5.3_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: BCM63XX: Mark expected switch fall-through
MIPS: OProfile: Mark expected switch fall-throughs
MIPS: Annotate fall-through in Cavium Octeon code
MIPS: Annotate fall-through in kvm/emulate.c
mips: fix cacheinfo
MIPS: kernel: only use i8253 clocksource with periodic clockevent
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Without this pin, the csb buffer will be filled with inconsistent
data after S3 resume. And that will causes gfx hang on gfxoff
exit since this csb will be executed then.
Signed-off-by: Likun Gao <[email protected]>
Tested-by: Paul Gover <[email protected]>
Reviewed-by: Feifei Xu <[email protected]>
Reviewed-by: Xiaojie Yuan <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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Jose Abreu says:
====================
net: stmmac: Fixes for -net
Couple of fixes for -net. More info in commit log.
====================
Signed-off-by: David S. Miller <[email protected]>
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Do not try to return a fragment entry from TC list. Otherwise we may not
clean properly allocated entries.
Signed-off-by: Jose Abreu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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When queues >= 4 we use different registers but we were not subtracting
the offset of 4. Fix this.
Found out by Coverity.
Signed-off-by: Jose Abreu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Fixup the XGMAC selftests by correctly finishing the implementation of
set_filter callback.
Result:
$ ethtool -t enp4s0
The test result is PASS
The test extra info:
1. MAC Loopback 0
2. PHY Loopback -95
3. MMC Counters -95
4. EEE -95
5. Hash Filter MC 0
6. Perfect Filter UC 0
7. MC Filter 0
8. UC Filter 0
9. Flow Control 0
Signed-off-by: Jose Abreu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 5.3
Second set of fixes for 5.3. Lots of iwlwifi fixes have accumulated
which consists most of patches in this pull request. Only most notable
iwlwifi fixes are listed below.
mwifiex
* fix a regression related to WPA1 networks since v5.3-rc1
iwlwifi
* fix use-after-free issues
* fix DMA mapping API usage errors
* fix frame drop occurring due to reorder buffer handling in
RSS in certain conditions
* fix rate scale locking issues
* disable TX A-MSDU on older NICs as it causes problems and was
never supposed to be supported
* new PCI IDs
* GEO_TX_POWER_LIMIT API issue that many people were hitting
====================
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:
- functional regression fix for some of the Logitech unifying devices,
from Hans de Goede
- race condition fix in hid-sony for bug severely affecting
Valve/Android deployments, from Roderick Colenbrander
- several fixes for issues found by syzbot/kasan, from Oliver Neukum
and Hillf Danton
- functional regression fix for Wacom Cintiq device, from Aaron
Armstrong Skomra
- a few other assorted device-specific quirks
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: sony: Fix race condition between rumble and device remove.
HID: hiddev: do cleanup in failure of opening a device
HID: hiddev: avoid opening a disconnected device
HID: input: fix a4tech horizontal wheel custom usage
HID: Add quirk for HP X1200 PIXART OEM mouse
HID: holtek: test for sanity of intfdata
HID: wacom: fix bit shift for Cintiq Companion 2
HID: quirks: Set the INCREMENT_USAGE_ON_DUPLICATE quirk on Saitek X52
HID: logitech-dj: Really fix return value of logi_dj_recv_query_hidpp_devices
HID: Add 044f:b320 ThrustMaster, Inc. 2 in 1 DT
HID: logitech-dj: add the Powerplay receiver
HID: logitech-hidpp: add USB PID for a few more supported mice
HID: logitech-dj: rename "gaming" receiver to "lightspeed"
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be_process_mcc() is invoked in 3 different places and
always with BHs disabled except the be_poll function
but since it's invoked from softirq with BHs
disabled it won't hurt.
v1->v2: added explanation to the patch
v2->v3: add a missing call from be_cmds.c
Signed-off-by: Denis Kirjanov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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A call to 'kfree_skb()' is missing in the error handling path of
'init_one()'.
This is already present in 'remove_one()' but is missing here.
Signed-off-by: Christophe JAILLET <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The sun4i-emac uses the "phy" property to find the PHY it's supposed to
use. This property was deprecated in favor of "phy-handle" in commit
8c5b09447625 ("dt-bindings: net: sun4i-emac: Convert the binding to a
schemas").
Add support for this new property name, and fall back to the old one in
case the device tree hasn't been updated.
Signed-off-by: Chen-Yu Tsai <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull pti updates from Thomas Gleixner:
"The performance deterioration departement is not proud at all to
present yet another set of speculation fences to mitigate the next
chapter in the 'what could possibly go wrong' story.
The new vulnerability belongs to the Spectre class and affects GS
based data accesses and has therefore been dubbed 'Grand Schemozzle'
for secret communication purposes. It's officially listed as
CVE-2019-1125.
Conditional branches in the entry paths which contain a SWAPGS
instruction (interrupts and exceptions) can be mis-speculated which
results in speculative accesses with a wrong GS base.
This can happen on entry from user mode through a mis-speculated
branch which takes the entry from kernel mode path and therefore does
not execute the SWAPGS instruction. The following speculative accesses
are done with user GS base.
On entry from kernel mode the mis-speculated branch executes the
SWAPGS instruction in the entry from user mode path which has the same
effect that the following GS based accesses are done with user GS
base.
If there is a disclosure gadget available in these code paths the
mis-speculated data access can be leaked through the usual side
channels.
The entry from user mode issue affects all CPUs which have speculative
execution. The entry from kernel mode issue affects only Intel CPUs
which can speculate through SWAPGS. On CPUs from other vendors SWAPGS
has semantics which prevent that.
SMAP migitates both problems but only when the CPU is not affected by
the Meltdown vulnerability.
The mitigation is to issue LFENCE instructions in the entry from
kernel mode path for all affected CPUs and on the affected Intel CPUs
also in the entry from user mode path unless PTI is enabled because
the CR3 write is serializing.
The fences are as usual enabled conditionally and can be completely
disabled on the kernel command line. The Spectre V1 documentation is
updated accordingly.
A big "Thank You!" goes to Josh for doing the heavy lifting for this
round of hardware misfeature 'repair'. Of course also "Thank You!" to
everybody else who contributed in one way or the other"
* 'x86/grand-schemozzle' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Documentation: Add swapgs description to the Spectre v1 documentation
x86/speculation/swapgs: Exclude ATOMs from speculation through SWAPGS
x86/entry/64: Use JMP instead of JMPQ
x86/speculation: Enable Spectre v1 swapgs mitigations
x86/speculation: Prepare entry code for Spectre v1 swapgs mitigations
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This fixes the below calltrace when the CONFIG_DMA_API_DEBUG is enabled.
DMA-API: thunderx_mmc 0000:01:01.4: cpu touching an active dma mapped cacheline [cln=0x000000002fdf9800]
WARNING: CPU: 21 PID: 1 at kernel/dma/debug.c:596 debug_dma_assert_idle+0x1f8/0x270
Modules linked in:
CPU: 21 PID: 1 Comm: init Not tainted 5.3.0-rc1-next-20190725-yocto-standard+ #64
Hardware name: Marvell OcteonTX CN96XX board (DT)
pstate: 80400009 (Nzcv daif +PAN -UAO)
pc : debug_dma_assert_idle+0x1f8/0x270
lr : debug_dma_assert_idle+0x1f8/0x270
sp : ffff0000113cfc10
x29: ffff0000113cfc10 x28: 0000ffff8c880000
x27: ffff800bc72a0000 x26: ffff000010ff8000
x25: ffff000010ff8940 x24: ffff000010ff8968
x23: 0000000000000000 x22: ffff000010e83700
x21: ffff000010ea2000 x20: ffff000010e835c8
x19: ffff800bc2c73300 x18: ffffffffffffffff
x17: 0000000000000000 x16: 0000000000000000
x15: ffff000010e835c8 x14: 6d20616d64206576
x13: 69746361206e6120 x12: 676e696863756f74
x11: 20757063203a342e x10: 31303a31303a3030
x9 : 303020636d6d5f78 x8 : 3230303030303030
x7 : 00000000000002fd x6 : ffff000010fd57d0
x5 : 0000000000000000 x4 : ffff0000106c5210
x3 : 00000000ffffffff x2 : 0000800bee9c0000
x1 : 57d5843f4aa62800 x0 : 0000000000000000
Call trace:
debug_dma_assert_idle+0x1f8/0x270
wp_page_copy+0xb0/0x688
do_wp_page+0xa8/0x5b8
__handle_mm_fault+0x600/0xd00
handle_mm_fault+0x118/0x1e8
do_page_fault+0x200/0x500
do_mem_abort+0x50/0xb0
el0_da+0x20/0x24
---[ end trace a005534bd23e109f ]---
DMA-API: Mapped at:
debug_dma_map_sg+0x94/0x350
cvm_mmc_request+0x3c4/0x988
__mmc_start_request+0x9c/0x1f8
mmc_start_request+0x7c/0xb0
mmc_blk_mq_issue_rq+0x5c4/0x7b8
Signed-off-by: Kevin Hao <[email protected]>
Fixes: ba3869ff32e4 ("mmc: cavium: Add core MMC driver for Cavium SOCs")
Cc: [email protected]
Signed-off-by: Ulf Hansson <[email protected]>
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We have set the mmc_host.max_seg_size to 8M, but the dma max segment
size of PCI device is set to 64K by default in function pci_device_add().
The mmc_host.max_seg_size is used to set the max segment size of
the blk queue. Then this mismatch will trigger a calltrace like below
when a bigger than 64K segment request arrives at mmc dev. So we should
consider the limitation of the cvm_mmc_host when setting the
mmc_host.max_seg_size.
DMA-API: thunderx_mmc 0000:01:01.4: mapping sg segment longer than device claims to support [len=131072] [max=65536]
WARNING: CPU: 6 PID: 238 at kernel/dma/debug.c:1221 debug_dma_map_sg+0x2b8/0x350
Modules linked in:
CPU: 6 PID: 238 Comm: kworker/6:1H Not tainted 5.3.0-rc1-next-20190724-yocto-standard+ #62
Hardware name: Marvell OcteonTX CN96XX board (DT)
Workqueue: kblockd blk_mq_run_work_fn
pstate: 80c00009 (Nzcv daif +PAN +UAO)
pc : debug_dma_map_sg+0x2b8/0x350
lr : debug_dma_map_sg+0x2b8/0x350
sp : ffff00001770f9e0
x29: ffff00001770f9e0 x28: ffffffff00000000
x27: 00000000ffffffff x26: ffff800bc2c73180
x25: ffff000010e83700 x24: 0000000000000002
x23: 0000000000000001 x22: 0000000000000001
x21: 0000000000000000 x20: ffff800bc48ba0b0
x19: ffff800bc97e8c00 x18: ffffffffffffffff
x17: 0000000000000000 x16: 0000000000000000
x15: ffff000010e835c8 x14: 6874207265676e6f
x13: 6c20746e656d6765 x12: 7320677320676e69
x11: 7070616d203a342e x10: 31303a31303a3030
x9 : 303020636d6d5f78 x8 : 35363d78616d5b20
x7 : 00000000000002fd x6 : ffff000010fd57dc
x5 : 0000000000000000 x4 : ffff0000106c61f0
x3 : 00000000ffffffff x2 : 0000800bee060000
x1 : 7010678df3041a00 x0 : 0000000000000000
Call trace:
debug_dma_map_sg+0x2b8/0x350
cvm_mmc_request+0x3c4/0x988
__mmc_start_request+0x9c/0x1f8
mmc_start_request+0x7c/0xb0
mmc_blk_mq_issue_rq+0x5c4/0x7b8
mmc_mq_queue_rq+0x11c/0x278
blk_mq_dispatch_rq_list+0xb0/0x568
blk_mq_do_dispatch_sched+0x6c/0x108
blk_mq_sched_dispatch_requests+0x110/0x1b8
__blk_mq_run_hw_queue+0xb0/0x118
blk_mq_run_work_fn+0x28/0x38
process_one_work+0x210/0x490
worker_thread+0x48/0x458
kthread+0x130/0x138
ret_from_fork+0x10/0x1c
Signed-off-by: Kevin Hao <[email protected]>
Fixes: ba3869ff32e4 ("mmc: cavium: Add core MMC driver for Cavium SOCs")
Cc: [email protected]
Signed-off-by: Ulf Hansson <[email protected]>
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The SD host controller specification defines 3 types software reset:
software reset for data line, software reset for command line and software
reset for all. Software reset for all means this reset affects the entire
Host controller except for the card detection circuit.
In sdhci_runtime_resume_host() we always do a software "reset for all",
which causes the Spreadtrum variant controller to work abnormally after
resuming. To fix the problem, let's do a software reset for the data and
the command part, rather than "for all".
However, as sdhci_runtime_resume() is a common sdhci function and we don't
want to change the behaviour for other variants, let's introduce a new
in-parameter for it. This enables the caller to decide if a "reset for all"
shall be done or not.
Signed-off-by: Baolin Wang <[email protected]>
Fixes: fb8bd90f83c4 ("mmc: sdhci-sprd: Add Spreadtrum's initial host controller")
Cc: [email protected]
Signed-off-by: Ulf Hansson <[email protected]>
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The endpoint type should also be checked before a device
is accepted.
Reported-by: [email protected]
Signed-off-by: Oliver Neukum <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>
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One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct touchpad_protocol {
...
struct tp_finger fingers[0];
};
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.
So, replace the following form:
sizeof(*tp) + tp->number_of_fingers * sizeof(tp->fingers[0]);
with:
struct_size(tp, fingers, tp->number_of_fingers)
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fix the following warning (Building: rb532_defconfig mips):
drivers/ata/pata_rb532_cf.c: In function ‘rb532_pata_driver_remove’:
drivers/ata/pata_rb532_cf.c:161:24: warning: unused variable ‘info’ [-Wunused-variable]
struct rb532_cf_info *info = ah->private_data;
^~~~
Fixes: cd56f35e52d9 ("ata: rb532_cf: Convert to use GPIO descriptors")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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The commit bfcba288b97f ("ALSA - hda: Add support for link audio time
reporting") introduced the conditional PCM hw info setup, but it
overwrites the global azx_pcm_hw object. This will cause a problem if
any other HD-audio controller, as it'll inherit the same bit flag
although another controller doesn't support that feature.
Fix the bug by setting the PCM hw info flag locally.
Fixes: bfcba288b97f ("ALSA - hda: Add support for link audio time reporting")
Cc: <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
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Perf relies on _etext and _stext symbols being one of 't', 'T', 'v' or
'V'. Put them into .text section to guarantee that.
Also moves padding to page boundary inside .text which has an effect that
.text section is now padded with nops rather than 0's, which apparently
has been the initial intention for specifying 0x0700 fill expression.
Reported-by: Thomas Richter <[email protected]>
Tested-by: Thomas Richter <[email protected]>
Suggested-by: Andreas Krebbel <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
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Cleanup labels in head64 some of which are not being used since git
recorded history.
Acked-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
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Remove pointless stack recursion on stack type ... warning, which
only confuses people. There is no way to make backchain unwinder 100%
reliable. When a task is interrupted in-between stack frame allocation
and backchain write instructions new stack frame backchain pointer is
left uninitialized (there are also sometimes additional instruction
in-between stack frame allocation and backchain write instructions due
to gcc shrink-wrapping). In attempt to unwind such stack the unwinder
would still try to use that invalid backchain value and perform all kind
of sanity checks on it to make sure we are not pointed out of stack. In
some cases that invalid backchain value would be 0 and we would falsely
treat next stackframe as pt_regs and again gprs[15] in those pt_regs
might happen to point at some address within the task's stack.
Acked-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
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After some investigation it doesn't look like init_mm fields
start_code/end_code are used anywhere besides potentially in dump_mm for
debugging purposes. Originally the value of 0 for start_code reflected
the presence of lowcore and early boot code. But with kaslr in place
start_code/end_code range should not span over unoccupied by the code
segment memory. So, adjust init_mm start_code to point at the beginning
of the code segment like other architectures do it.
Acked-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
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Since commit d1874a0c2805 ("s390/mm: make the pxd_offset functions more
robust") behaviour of p4d_offset, pud_offset and pmd_offset has been
changed so that they cannot be used to iterate through top level page
table, because the index for the top level page table is now calculated
in pgd_offset. To avoid dumping the very first region/segment top level
table entry 2048 times simply iterate entry pointer like it is already
done in other page walking cases.
Fixes: d1874a0c2805 ("s390/mm: make the pxd_offset functions more robust")
Reported-by: Ilya Leoshkevich <[email protected]>
Reviewed-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
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This reverts commit db9492cef45e ("s390/protvirt: add memory sharing for
diag 308 set/store") which due to ultravisor implementation change is
not needed after all.
Fixes: db9492cef45e ("s390/protvirt: add memory sharing for diag 308 set/store")
Reviewed-by: Janosch Frank <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
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When a process creates a new trigger by writing into /proc/pressure/*
files, permissions to write such a file should be used to determine whether
the process is allowed to do so or not. Current implementation would also
require such a process to have setsched capability. Setting of psi trigger
thread's scheduling policy is an implementation detail and should not be
exposed to the user level. Remove the permission check by using _nocheck
version of the function.
Suggested-by: Nick Kralevich <[email protected]>
Signed-off-by: Suren Baghdasaryan <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
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PSI defaults to a FIFO-99 thread, reduce this to FIFO-1.
FIFO-99 is the very highest priority available to SCHED_FIFO and
it not a suitable default; it would indicate the psi work is the
most important work on the machine.
Since Real-Time tasks will have pre-allocated memory and locked it in
place, Real-Time tasks do not care about PSI. All it needs is to be
above OTHER.
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Acked-by: Johannes Weiner <[email protected]>
Tested-by: Suren Baghdasaryan <[email protected]>
Cc: Thomas Gleixner <[email protected]>
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{push,pull}_dl_task() always calls {de,}activate_task() with .flags=0
which sets p->on_rq=TASK_ON_RQ_MIGRATING.
{push,pull}_dl_task()->{de,}activate_task()->{de,en}queue_task()->
{de,en}queue_task_dl() calls {sub,add}_{running,rq}_bw() since
p->on_rq==TASK_ON_RQ_MIGRATING.
So {sub,add}_{running,rq}_bw() in {push,pull}_dl_task() is
double-accounting for that task.
Fix it by removing rq/running bw accounting in [push/pull]_dl_task().
Fixes: 7dd778841164 ("sched/core: Unify p->on_rq updates")
Signed-off-by: Dietmar Eggemann <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Valentin Schneider <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Luca Abeni <[email protected]>
Cc: Daniel Bristot de Oliveira <[email protected]>
Cc: Juri Lelli <[email protected]>
Cc: Qais Yousef <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
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Valve reported a kernel crash on Ubuntu 18.04 when disconnecting a DS4
gamepad while rumble is enabled. This issue is reproducible with a
frequency of 1 in 3 times in the game Borderlands 2 when using an
automatic weapon, which triggers many rumble operations.
We found the issue to be a race condition between sony_remove and the
final device destruction by the HID / input system. The problem was
that sony_remove didn't clean some of its work_item state in
"struct sony_sc". After sony_remove work, the corresponding evdev
node was around for sufficient time for applications to still queue
rumble work after "sony_remove".
On pre-4.19 kernels the race condition caused a kernel crash due to a
NULL-pointer dereference as "sc->output_report_dmabuf" got freed during
sony_remove. On newer kernels this crash doesn't happen due the buffer
now being allocated using devm_kzalloc. However we can still queue work,
while the driver is an undefined state.
This patch fixes the described problem, by guarding the work_item
"state_worker" with an initialized variable, which we are setting back
to 0 on cleanup.
Signed-off-by: Roderick Colenbrander <[email protected]>
CC: [email protected]
Signed-off-by: Jiri Kosina <[email protected]>
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In snd_usb_get_audioformat_uac3(), a structure for channel maps 'chmap' is
allocated through kzalloc() before the execution goto 'found_clock'.
However, this structure is not deallocated if the memory allocation for
'pd' fails, leading to a memory leak bug.
To fix the above issue, free 'fp->chmap' before returning NULL.
Fixes: 7edf3b5e6a45 ("ALSA: usb-audio: AudioStreaming Power Domain parsing")
Signed-off-by: Wenwen Wang <[email protected]>
Cc: <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
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Undo what we did for opening before releasing the memory slice.
Reported-by: syzbot <[email protected]>
Cc: Andrey Konovalov <[email protected]>
Signed-off-by: Hillf Danton <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
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syzbot found the following crash on:
HEAD commit: e96407b4 usb-fuzzer: main usb gadget fuzzer driver
git tree: https://github.com/google/kasan.git usb-fuzzer
console output: https://syzkaller.appspot.com/x/log.txt?x=147ac20c600000
kernel config: https://syzkaller.appspot.com/x/.config?x=792eb47789f57810
dashboard link: https://syzkaller.appspot.com/bug?extid=62a1e04fd3ec2abf099e
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x302a/0x3b50
kernel/locking/lockdep.c:3753
Read of size 8 at addr ffff8881cf591a08 by task syz-executor.1/26260
CPU: 1 PID: 26260 Comm: syz-executor.1 Not tainted 5.3.0-rc2+ #24
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0xca/0x13e lib/dump_stack.c:113
print_address_description+0x6a/0x32c mm/kasan/report.c:351
__kasan_report.cold+0x1a/0x33 mm/kasan/report.c:482
kasan_report+0xe/0x12 mm/kasan/common.c:612
__lock_acquire+0x302a/0x3b50 kernel/locking/lockdep.c:3753
lock_acquire+0x127/0x320 kernel/locking/lockdep.c:4412
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x32/0x50 kernel/locking/spinlock.c:159
hiddev_release+0x82/0x520 drivers/hid/usbhid/hiddev.c:221
__fput+0x2d7/0x840 fs/file_table.c:280
task_work_run+0x13f/0x1c0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x8ef/0x2c50 kernel/exit.c:878
do_group_exit+0x125/0x340 kernel/exit.c:982
get_signal+0x466/0x23d0 kernel/signal.c:2728
do_signal+0x88/0x14e0 arch/x86/kernel/signal.c:815
exit_to_usermode_loop+0x1a2/0x200 arch/x86/entry/common.c:159
prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
syscall_return_slowpath arch/x86/entry/common.c:274 [inline]
do_syscall_64+0x45f/0x580 arch/x86/entry/common.c:299
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459829
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f75b2a6ccf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000075c078 RCX: 0000000000459829
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075c078
RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075c07c
R13: 00007ffcdfe1023f R14: 00007f75b2a6d9c0 R15: 000000000075c07c
Allocated by task 104:
save_stack+0x1b/0x80 mm/kasan/common.c:69
set_track mm/kasan/common.c:77 [inline]
__kasan_kmalloc mm/kasan/common.c:487 [inline]
__kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:460
kmalloc include/linux/slab.h:552 [inline]
kzalloc include/linux/slab.h:748 [inline]
hiddev_connect+0x242/0x5b0 drivers/hid/usbhid/hiddev.c:900
hid_connect+0x239/0xbb0 drivers/hid/hid-core.c:1882
hid_hw_start drivers/hid/hid-core.c:1981 [inline]
hid_hw_start+0xa2/0x130 drivers/hid/hid-core.c:1972
appleir_probe+0x13e/0x1a0 drivers/hid/hid-appleir.c:308
hid_device_probe+0x2be/0x3f0 drivers/hid/hid-core.c:2209
really_probe+0x281/0x650 drivers/base/dd.c:548
driver_probe_device+0x101/0x1b0 drivers/base/dd.c:709
__device_attach_driver+0x1c2/0x220 drivers/base/dd.c:816
bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454
__device_attach+0x217/0x360 drivers/base/dd.c:882
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514
device_add+0xae6/0x16f0 drivers/base/core.c:2114
hid_add_device+0x33c/0x990 drivers/hid/hid-core.c:2365
usbhid_probe+0xa81/0xfa0 drivers/hid/usbhid/hid-core.c:1386
usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361
really_probe+0x281/0x650 drivers/base/dd.c:548
driver_probe_device+0x101/0x1b0 drivers/base/dd.c:709
__device_attach_driver+0x1c2/0x220 drivers/base/dd.c:816
bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454
__device_attach+0x217/0x360 drivers/base/dd.c:882
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514
device_add+0xae6/0x16f0 drivers/base/core.c:2114
usb_set_configuration+0xdf6/0x1670 drivers/usb/core/message.c:2023
generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210
usb_probe_device+0x99/0x100 drivers/usb/core/driver.c:266
really_probe+0x281/0x650 drivers/base/dd.c:548
driver_probe_device+0x101/0x1b0 drivers/base/dd.c:709
__device_attach_driver+0x1c2/0x220 drivers/base/dd.c:816
bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454
__device_attach+0x217/0x360 drivers/base/dd.c:882
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514
device_add+0xae6/0x16f0 drivers/base/core.c:2114
usb_new_device.cold+0x6a4/0xe79 drivers/usb/core/hub.c:2536
hub_port_connect drivers/usb/core/hub.c:5098 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5213 [inline]
port_event drivers/usb/core/hub.c:5359 [inline]
hub_event+0x1b5c/0x3640 drivers/usb/core/hub.c:5441
process_one_work+0x92b/0x1530 kernel/workqueue.c:2269
worker_thread+0x96/0xe20 kernel/workqueue.c:2415
kthread+0x318/0x420 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Freed by task 104:
save_stack+0x1b/0x80 mm/kasan/common.c:69
set_track mm/kasan/common.c:77 [inline]
__kasan_slab_free+0x130/0x180 mm/kasan/common.c:449
slab_free_hook mm/slub.c:1423 [inline]
slab_free_freelist_hook mm/slub.c:1470 [inline]
slab_free mm/slub.c:3012 [inline]
kfree+0xe4/0x2f0 mm/slub.c:3953
hiddev_connect.cold+0x45/0x5c drivers/hid/usbhid/hiddev.c:914
hid_connect+0x239/0xbb0 drivers/hid/hid-core.c:1882
hid_hw_start drivers/hid/hid-core.c:1981 [inline]
hid_hw_start+0xa2/0x130 drivers/hid/hid-core.c:1972
appleir_probe+0x13e/0x1a0 drivers/hid/hid-appleir.c:308
hid_device_probe+0x2be/0x3f0 drivers/hid/hid-core.c:2209
really_probe+0x281/0x650 drivers/base/dd.c:548
driver_probe_device+0x101/0x1b0 drivers/base/dd.c:709
__device_attach_driver+0x1c2/0x220 drivers/base/dd.c:816
bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454
__device_attach+0x217/0x360 drivers/base/dd.c:882
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514
device_add+0xae6/0x16f0 drivers/base/core.c:2114
hid_add_device+0x33c/0x990 drivers/hid/hid-core.c:2365
usbhid_probe+0xa81/0xfa0 drivers/hid/usbhid/hid-core.c:1386
usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361
really_probe+0x281/0x650 drivers/base/dd.c:548
driver_probe_device+0x101/0x1b0 drivers/base/dd.c:709
__device_attach_driver+0x1c2/0x220 drivers/base/dd.c:816
bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454
__device_attach+0x217/0x360 drivers/base/dd.c:882
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514
device_add+0xae6/0x16f0 drivers/base/core.c:2114
usb_set_configuration+0xdf6/0x1670 drivers/usb/core/message.c:2023
generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210
usb_probe_device+0x99/0x100 drivers/usb/core/driver.c:266
really_probe+0x281/0x650 drivers/base/dd.c:548
driver_probe_device+0x101/0x1b0 drivers/base/dd.c:709
__device_attach_driver+0x1c2/0x220 drivers/base/dd.c:816
bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454
__device_attach+0x217/0x360 drivers/base/dd.c:882
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514
device_add+0xae6/0x16f0 drivers/base/core.c:2114
usb_new_device.cold+0x6a4/0xe79 drivers/usb/core/hub.c:2536
hub_port_connect drivers/usb/core/hub.c:5098 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5213 [inline]
port_event drivers/usb/core/hub.c:5359 [inline]
hub_event+0x1b5c/0x3640 drivers/usb/core/hub.c:5441
process_one_work+0x92b/0x1530 kernel/workqueue.c:2269
worker_thread+0x96/0xe20 kernel/workqueue.c:2415
kthread+0x318/0x420 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
The buggy address belongs to the object at ffff8881cf591900
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 264 bytes inside of
512-byte region [ffff8881cf591900, ffff8881cf591b00)
The buggy address belongs to the page:
page:ffffea00073d6400 refcount:1 mapcount:0 mapping:ffff8881da002500
index:0x0 compound_mapcount: 0
flags: 0x200000000010200(slab|head)
raw: 0200000000010200 0000000000000000 0000000100000001 ffff8881da002500
raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8881cf591900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8881cf591980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> ffff8881cf591a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8881cf591a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8881cf591b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
In order to avoid opening a disconnected device, we need to check exist
again after acquiring the existance lock, and bail out if necessary.
Reported-by: syzbot <[email protected]>
Cc: Andrey Konovalov <[email protected]>
Signed-off-by: Hillf Danton <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.3
Incremental fix removing executable bits added in a prior patch
accidentally.
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.3
A relatively large batch of mostly unremarkable fixes here, a couple of
small core fixes for fairly obscure issues, more comment/email updates
with no code impact than usual and a bunch of small driver fixes.
The support for new sample rates in the max98373 driver is a fix for the
fact that the driver declared support for those rates but would in fact
return an error if these rates were selected.
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Signed-off-by: Mark Brown <[email protected]>
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Fix kernel oops when mounting a encryptData CIFS share with
CONFIG_DEBUG_VIRTUAL
Signed-off-by: Sebastien Tisserant <[email protected]>
Reviewed-by: Pavel Shilovsky <[email protected]>
Signed-off-by: Steve French <[email protected]>
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minor cleanup of documentation, updating to more current status.
Signed-off-by: Steve French <[email protected]>
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We had a report of a server which did not do a DFS referral
because the session setup Capabilities field was set to 0
(unlike negotiate protocol where we set CAP_DFS). Better to
send it session setup in the capabilities as well (this also
more closely matches Windows client behavior).
Signed-off-by: Steve French <[email protected]>
Reviewed-off-by: Ronnie Sahlberg <[email protected]>
Reviewed-by: Pavel Shilovsky <[email protected]>
CC: Stable <[email protected]>
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When a reconnect happens in the middle of processing a compound chain
the code leaks a buffer from the memory pool. Fix this by properly
checking for a return code and freeing buffers in case of error.
Also maintain a buf variable to be equal to either smallbuf or bigbuf
depending on a response buffer size while parsing a chain and when
returning to the caller.
Signed-off-by: Pavel Shilovsky <[email protected]>
Reviewed-by: Ronnie Sahlberg <[email protected]>
Signed-off-by: Steve French <[email protected]>
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Currently we skip SMB2_TREE_CONNECT command when checking during
reconnect because Tree Connect happens when establishing
an SMB session. For SMB 3.0 protocol version the code also calls
validate negotiate which results in SMB2_IOCL command being sent
over the wire. This may deadlock on trying to acquire a mutex when
checking for reconnect. Fix this by skipping SMB2_IOCL command
when doing the reconnect check.
Signed-off-by: Pavel Shilovsky <[email protected]>
Signed-off-by: Steve French <[email protected]>
Reviewed-by: Ronnie Sahlberg <[email protected]>
CC: Stable <[email protected]>
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Mark switch cases where we are expecting to fall through.
This patch fixes the following warning (Building: bcm63xx_defconfig mips):
arch/mips/pci/ops-bcm63xx.c: In function ‘bcm63xx_pcie_can_access’:
arch/mips/pci/ops-bcm63xx.c:474:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
if (PCI_SLOT(devfn) == 0)
^
arch/mips/pci/ops-bcm63xx.c:477:2: note: here
default:
^~~~~~~
Signed-off-by: Gustavo A. R. Silva <[email protected]>
Signed-off-by: Paul Burton <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: James Hogan <[email protected]>
Cc: Florian Fainelli <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
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Vivek:
"As of now dax_layout_busy_page() calls unmap_mapping_range() with last
argument as 1, which says even unmap cow pages. I am wondering who needs
to get rid of cow pages as well.
I noticed one interesting side affect of this. I mount xfs with -o dax and
mmaped a file with MAP_PRIVATE and wrote some data to a page which created
cow page. Then I called fallocate() on that file to zero a page of file.
fallocate() called dax_layout_busy_page() which unmapped cow pages as well
and then I tried to read back the data I wrote and what I get is old
data from persistent memory. I lost the data I had written. This
read basically resulted in new fault and read back the data from
persistent memory.
This sounds wrong. Are there any users which need to unmap cow pages
as well? If not, I am proposing changing it to not unmap cow pages.
I noticed this while while writing virtio_fs code where when I tried
to reclaim a memory range and that corrupted the executable and I
was running from virtio-fs and program got segment violation."
Dan:
"In fact the unmap_mapping_range() in this path is only to synchronize
against get_user_pages_fast() and force it to call back into the
filesystem to re-establish the mapping. COW pages should be left
untouched by dax_layout_busy_page()."
Cc: <[email protected]>
Fixes: 5fac7408d828 ("mm, fs, dax: handle layout changes to pinned dax mappings")
Signed-off-by: Vivek Goyal <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dan Williams <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2019-08-02
this is a pull request of 4 patches for net/master.
The first two patches are by Wang Xiayang, they force that the string buffer
during a dev_info() is properly NULL terminated.
The last two patches are by Tomas Bortoli and fix both a potential info leak of
kernel memory to USB devices.
====================
Signed-off-by: David S. Miller <[email protected]>
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Most of the bridge device's vlan init bugs come from the fact that its
default pvid is created at the wrong time, way too early in ndo_init()
before the device is even assigned an ifindex. It introduces a bug when the
bridge's dev_addr is added as fdb during the initial default pvid creation
the notification has ifindex/NDA_MASTER both equal to 0 (see example below)
which really makes no sense for user-space[0] and is wrong.
Usually user-space software would ignore such entries, but they are
actually valid and will eventually have all necessary attributes.
It makes much more sense to send a notification *after* the device has
registered and has a proper ifindex allocated rather than before when
there's a chance that the registration might still fail or to receive
it with ifindex/NDA_MASTER == 0. Note that we can remove the fdb flush
from br_vlan_flush() since that case can no longer happen. At
NETDEV_REGISTER br->default_pvid is always == 1 as it's initialized by
br_vlan_init() before that and at NETDEV_UNREGISTER it can be anything
depending why it was called (if called due to NETDEV_REGISTER error
it'll still be == 1, otherwise it could be any value changed during the
device life time).
For the demonstration below a small change to iproute2 for printing all fdb
notifications is added, because it contained a workaround not to show
entries with ifindex == 0.
Command executed while monitoring: $ ip l add br0 type bridge
Before (both ifindex and master == 0):
$ bridge monitor fdb
36:7e:8a:b3:56:ba dev * vlan 1 master * permanent
After (proper br0 ifindex):
$ bridge monitor fdb
e6:2a:ae:7a:b7:48 dev br0 vlan 1 master br0 permanent
v4: move only the default pvid init/deinit to NETDEV_REGISTER/UNREGISTER
v3: send the correct v2 patch with all changes (stub should return 0)
v2: on error in br_vlan_init set br->vlgrp to NULL and return 0 in
the br_vlan_bridge_event stub when bridge vlans are disabled
[0] https://bugzilla.kernel.org/show_bug.cgi?id=204389
Reported-by: michael-dev <[email protected]>
Fixes: 5be5a2df40f0 ("bridge: Add filtering support for default_pvid")
Signed-off-by: Nikolay Aleksandrov <[email protected]>
Acked-by: Roopa Prabhu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Orion5.x systems are still using machine files and not device-tree.
Commit 96cb4342382290c9 ("net: mvmdio: allow up to three clocks to be
specified for orion-mdio") has replaced devm_clk_get() with of_clk_get(),
leading to a oops at boot and not working network, as reported in
https://lists.debian.org/debian-arm/2019/07/msg00088.html and possibly in
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=908712.
Link: https://lists.debian.org/debian-arm/2019/07/msg00088.html
Fixes: 96cb4342382290c9 ("net: mvmdio: allow up to three clocks to be specified for orion-mdio")
Signed-off-by: Arnaud Patard <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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FASTOPEN is not possible with SMC. sendmsg() with msg_flag MSG_FASTOPEN
triggers a fallback to TCP if the socket is in state SMC_INIT.
But if a nonblocking connect is already started, fallback to TCP
is no longer possible, even though the socket may still be in state
SMC_INIT.
And if a nonblocking connect is already started, a listen() call
does not make sense.
Reported-by: [email protected]
Fixes: 50717a37db032 ("net/smc: nonblocking connect rework")
Signed-off-by: Ursula Braun <[email protected]>
Signed-off-by: Karsten Graul <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The setsockopts options TCP_NODELAY and TCP_CORK may schedule the
tx worker. Make sure the socket is not yet moved into SMC_CLOSED
state (for instance by a shutdown SHUT_RDWR call).
Reported-by: [email protected]
Reported-by: [email protected]
Fixes: 01d2f7e2cdd31 ("net/smc: sockopts TCP_NODELAY and TCP_CORK")
Signed-off-by: Ursula Braun <[email protected]>
Signed-off-by: Karsten Graul <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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desc_cnt and data_cnt should always be equal. In the case of a dropped
packet desc_cnt was still getting updated (correctly), data_cnt
was not. To eliminate this bug and prevent it from recurring this
patch combines them into one ring level cnt.
Signed-off-by: Catherine Sullivan <[email protected]>
Reviewed-by: Sagi Shahar <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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