985584 Commits

Author SHA1 Message Date
Carlos Llamas
a3c08c0217 mm/mmap: undo ->mmap() when arch_validate_flags() fails
commit deb0f6562884b5b4beb883d73e66a7d3a1b96d99 upstream.

Commit c462ac288f2c ("mm: Introduce arch_validate_flags()") added a late
check in mmap_region() to let architectures validate vm_flags.  The check
needs to happen after calling ->mmap() as the flags can potentially be
modified during this callback.

If arch_validate_flags() check fails we unmap and free the vma.  However,
the error path fails to undo the ->mmap() call that previously succeeded
and depending on the specific ->mmap() implementation this translates to
reference increments, memory allocations and other operations what will
not be cleaned up.

There are several places (mainly device drivers) where this is an issue.
However, one specific example is bpf_map_mmap() which keeps count of the
mappings in map->writecnt.  The count is incremented on ->mmap() and then
decremented on vm_ops->close().  When arch_validate_flags() fails this
count is off since bpf_map_mmap_close() is never called.

One can reproduce this issue in arm64 devices with MTE support.  Here the
vm_flags are checked to only allow VM_MTE if VM_MTE_ALLOWED has been set
previously.  From userspace then is enough to pass the PROT_MTE flag to
mmap() syscall to trigger the arch_validate_flags() failure.

The following program reproduces this issue:

  #include <stdio.h>
  #include <unistd.h>
  #include <linux/unistd.h>
  #include <linux/bpf.h>
  #include <sys/mman.h>

  int main(void)
  {
	union bpf_attr attr = {
		.map_type = BPF_MAP_TYPE_ARRAY,
		.key_size = sizeof(int),
		.value_size = sizeof(long long),
		.max_entries = 256,
		.map_flags = BPF_F_MMAPABLE,
	};
	int fd;

	fd = syscall(__NR_bpf, BPF_MAP_CREATE, &attr, sizeof(attr));
	mmap(NULL, 4096, PROT_WRITE | PROT_MTE, MAP_SHARED, fd, 0);

	return 0;
  }

By manually adding some log statements to the vm_ops callbacks we can
confirm that when passing PROT_MTE to mmap() the map->writecnt is off upon
->release():

With PROT_MTE flag:
  root@debian:~# ./bpf-test
  [  111.263874] bpf_map_write_active_inc: map=9 writecnt=1
  [  111.288763] bpf_map_release: map=9 writecnt=1

Without PROT_MTE flag:
  root@debian:~# ./bpf-test
  [  157.816912] bpf_map_write_active_inc: map=10 writecnt=1
  [  157.830442] bpf_map_write_active_dec: map=10 writecnt=0
  [  157.832396] bpf_map_release: map=10 writecnt=0

This patch fixes the above issue by calling vm_ops->close() when the
arch_validate_flags() check fails, after this we can proceed to unmap and
free the vma on the error path.

Link: https://lkml.kernel.org/r/20220930003844.1210987-1-cmllamas@google.com
Fixes: c462ac288f2c ("mm: Introduce arch_validate_flags()")
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Liam Howlett <liam.howlett@oracle.com>
Cc: Christian Brauner (Microsoft) <brauner@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: <stable@vger.kernel.org>	[5.10+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:11 +02:00
Jeffle Xu
7d551b7d61 block: fix inflight statistics of part0
commit b0d97557ebfc9d5ba5f2939339a9fdd267abafeb upstream.

The inflight of partition 0 doesn't include inflight IOs to all
sub-partitions, since currently mq calculates inflight of specific
partition by simply camparing the value of the partition pointer.

Thus the following case is possible:

$ cat /sys/block/vda/inflight
       0        0
$ cat /sys/block/vda/vda1/inflight
       0      128

While single queue device (on a previous version, e.g. v3.10) has no
this issue:

$cat /sys/block/sda/sda3/inflight
       0       33
$cat /sys/block/sda/inflight
       0       33

Partition 0 should be specially handled since it represents the whole
disk. This issue is introduced since commit bf0ddaba65dd ("blk-mq: fix
sysfs inflight counter").

Besides, this patch can also fix the inflight statistics of part 0 in
/proc/diskstats. Before this patch, the inflight statistics of part 0
doesn't include that of sub partitions. (I have marked the 'inflight'
field with asterisk.)

$cat /proc/diskstats
 259       0 nvme0n1 45974469 0 367814768 6445794 1 0 1 0 *0* 111062 6445794 0 0 0 0 0 0
 259       2 nvme0n1p1 45974058 0 367797952 6445727 0 0 0 0 *33* 111001 6445727 0 0 0 0 0 0

This is introduced since commit f299b7c7a9de ("blk-mq: provide internal
in-flight variant").

Fixes: bf0ddaba65dd ("blk-mq: fix sysfs inflight counter")
Fixes: f299b7c7a9de ("blk-mq: provide internal in-flight variant")
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
[axboe: adapt for 5.11 partition change]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
[khazhy: adapt for 5.10 partition]
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:11 +02:00
Takashi Iwai
0a12979089 drm/udl: Restore display mode on resume
commit 6d6e732835db92e66c28dbcf258a7e3d3c71420d upstream.

Restore the display mode whne resuming from suspend. Currently, the
display remains dark.

On resume, the CRTC's mode does not change, but the 'active' flag
changes to 'true'. Taking this into account when considering a mode
switch restores the display mode.

The bug is reproducable by using Gnome with udl and observing the
adapter's suspend/resume behavior.

Actually, the whole check added in udl_simple_display_pipe_enable()
about the crtc_state->mode_changed was bogus.  We should drop the
whole check and always apply the mode change in this function.

[ tiwai -- Drop the mode_changed check entirely instead, per Daniel's
  suggestion ]

Fixes: 997d33c35618 ("drm/udl: Inline DPMS code into CRTC enable and disable functions")
Cc: <stable@vger.kernel.org>
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220908095115.23396-2-tiwai@suse.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:10 +02:00
Dmitry Osipenko
f134f261d7 drm/virtio: Check whether transferred 2D BO is shmem
commit e473216b42aa1fd9fc6b94b608b42c210c655908 upstream.

Transferred 2D BO always must be a shmem BO. Add check for that to prevent
NULL dereference if userspace passes a VRAM BO.

Cc: stable@vger.kernel.org
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20220630200726.1884320-3-dmitry.osipenko@collabora.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:10 +02:00
Rishabh Bhatnagar
303436e301 nvme-pci: set min_align_mask before calculating max_hw_sectors
commit 61ce339f19fabbc3e51237148a7ef6f2270e44fa upstream.

If swiotlb is force enabled dma_max_mapping_size ends up calling
swiotlb_max_mapping_size which takes into account the min align mask for
the device.  Set the min align mask for nvme driver before calling
dma_max_mapping_size while calculating max hw sectors.

Signed-off-by: Rishabh Bhatnagar <risbhat@amazon.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:10 +02:00
Huacai Chen
6a73e6edcb UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK
commit 16c546e148fa6d14a019431436a6f7b4087dbccd upstream.

When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected,
cpu_max_bits_warn() generates a runtime warning similar as below while
we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit)
instead of NR_CPUS to iterate CPUs.

[    3.052463] ------------[ cut here ]------------
[    3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0
[    3.070072] Modules linked in: efivarfs autofs4
[    3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052
[    3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000
[    3.109127]         9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430
[    3.118774]         90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff
[    3.128412]         0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890
[    3.138056]         0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa
[    3.147711]         ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000
[    3.157364]         900000000101c998 0000000000000004 9000000000ef7430 0000000000000000
[    3.167012]         0000000000000009 000000000000006c 0000000000000000 0000000000000000
[    3.176641]         9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286
[    3.186260]         00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c
[    3.195868]         ...
[    3.199917] Call Trace:
[    3.203941] [<90000000002086d8>] show_stack+0x38/0x14c
[    3.210666] [<9000000000cf846c>] dump_stack_lvl+0x60/0x88
[    3.217625] [<900000000023d268>] __warn+0xd0/0x100
[    3.223958] [<9000000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc
[    3.231150] [<9000000000210220>] show_cpuinfo+0x5e8/0x5f0
[    3.238080] [<90000000004f578c>] seq_read_iter+0x354/0x4b4
[    3.245098] [<90000000004c2e90>] new_sync_read+0x17c/0x1c4
[    3.252114] [<90000000004c5174>] vfs_read+0x138/0x1d0
[    3.258694] [<90000000004c55f8>] ksys_read+0x70/0x100
[    3.265265] [<9000000000cfde9c>] do_syscall+0x7c/0x94
[    3.271820] [<9000000000202fe4>] handle_syscall+0xc4/0x160
[    3.281824] ---[ end trace 8b484262b4b8c24c ]---

Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:10 +02:00
Fangrui Song
1a053f597f riscv: Pass -mno-relax only on lld < 15.0.0
commit 3cebf80e9a0d3adcb174053be32c88a640b3344b upstream.

lld since llvm:6611d58f5bbc ("[ELF] Relax R_RISCV_ALIGN"), which will be
included in the 15.0.0 release, has implemented some RISC-V linker
relaxation.  -mno-relax is no longer needed in
KBUILD_CFLAGS/KBUILD_AFLAGS to suppress R_RISCV_ALIGN which older lld
can not handle:

    ld.lld: error: capability.c:(.fixup+0x0): relocation R_RISCV_ALIGN
    requires unimplemented linker relaxation; recompile with -mno-relax
    but the .o is already compiled with -mno-relax

Signed-off-by: Fangrui Song <maskray@google.com>
Link: https://lore.kernel.org/r/20220710071117.446112-1-maskray@google.com/
Link: https://lore.kernel.org/r/20220918092933.19943-1-palmer@rivosinc.com
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:10 +02:00
Andrew Bresticker
d15dca1d46 riscv: Make VM_WRITE imply VM_READ
commit 7ab72c597356be1e7f0f3d856e54ce78527f43c8 upstream.

RISC-V does not presently have write-only mappings as that PTE bit pattern
is considered reserved in the privileged spec, so allow handling of read
faults in VMAs that have VM_WRITE without VM_READ in order to be consistent
with other architectures that have similar limitations.

Fixes: 2139619bcad7 ("riscv: mmap with PROT_WRITE but no PROT_READ is invalid")
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Andrew Bresticker <abrestic@rivosinc.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220915193702.2201018-2-abrestic@rivosinc.com/
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:10 +02:00
Andrew Bresticker
d8c6f9b2e1 riscv: Allow PROT_WRITE-only mmap()
commit 9e2e6042a7ec6504fe8e366717afa2f40cf16488 upstream.

Commit 2139619bcad7 ("riscv: mmap with PROT_WRITE but no PROT_READ is
invalid") made mmap() return EINVAL if PROT_WRITE was set wihtout
PROT_READ with the justification that a write-only PTE is considered a
reserved PTE permission bit pattern in the privileged spec. This check
is unnecessary since we let VM_WRITE imply VM_READ on RISC-V, and it is
inconsistent with other architectures that don't support write-only PTEs,
creating a potential software portability issue. Just remove the check
altogether and let PROT_WRITE imply PROT_READ as is the case on other
architectures.

Note that this also allows PROT_WRITE|PROT_EXEC mappings which were
disallowed prior to the aforementioned commit; PROT_READ is implied in
such mappings as well.

Fixes: 2139619bcad7 ("riscv: mmap with PROT_WRITE but no PROT_READ is invalid")
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Andrew Bresticker <abrestic@rivosinc.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220915193702.2201018-3-abrestic@rivosinc.com/
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:10 +02:00
Helge Deller
a6dcc6cfa2 parisc: fbdev/stifb: Align graphics memory size to 4MB
commit aca7c13d3bee81a968337a5515411409ae9d095d upstream.

Independend of the current graphics resolution, adjust the reported
graphics card memory size to the next 4MB boundary.
This fixes the fbtest program which expects a naturally aligned size.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:10 +02:00
Maciej W. Rozycki
2ce9fab94b RISC-V: Make port I/O string accessors actually work
commit 9cc205e3c17d5716da7ebb7fa0c985555e95d009 upstream.

Fix port I/O string accessors such as `insb', `outsb', etc. which use
the physical PCI port I/O address rather than the corresponding memory
mapping to get at the requested location, which in turn breaks at least
accesses made by our parport driver to a PCIe parallel port such as:

PCI parallel port detected: 1415:c118, I/O at 0x1000(0x1008), IRQ 20
parport0: PC-style at 0x1000 (0x1008), irq 20, using FIFO [PCSPP,TRISTATE,COMPAT,EPP,ECP]

causing a memory access fault:

Unable to handle kernel access to user memory without uaccess routines at virtual address 0000000000001008
Oops [#1]
Modules linked in:
CPU: 1 PID: 350 Comm: cat Not tainted 6.0.0-rc2-00283-g10d4879f9ef0-dirty #23
Hardware name: SiFive HiFive Unmatched A00 (DT)
epc : parport_pc_fifo_write_block_pio+0x266/0x416
 ra : parport_pc_fifo_write_block_pio+0xb4/0x416
epc : ffffffff80542c3e ra : ffffffff80542a8c sp : ffffffd88899fc60
 gp : ffffffff80fa2700 tp : ffffffd882b1e900 t0 : ffffffd883d0b000
 t1 : ffffffffff000002 t2 : 4646393043330a38 s0 : ffffffd88899fcf0
 s1 : 0000000000001000 a0 : 0000000000000010 a1 : 0000000000000000
 a2 : ffffffd883d0a010 a3 : 0000000000000023 a4 : 00000000ffff8fbb
 a5 : ffffffd883d0a001 a6 : 0000000100000000 a7 : ffffffc800000000
 s2 : ffffffffff000002 s3 : ffffffff80d28880 s4 : ffffffff80fa1f50
 s5 : 0000000000001008 s6 : 0000000000000008 s7 : ffffffd883d0a000
 s8 : 0004000000000000 s9 : ffffffff80dc1d80 s10: ffffffd8807e4000
 s11: 0000000000000000 t3 : 00000000000000ff t4 : 393044410a303930
 t5 : 0000000000001000 t6 : 0000000000040000
status: 0000000200000120 badaddr: 0000000000001008 cause: 000000000000000f
[<ffffffff80543212>] parport_pc_compat_write_block_pio+0xfe/0x200
[<ffffffff8053bbc0>] parport_write+0x46/0xf8
[<ffffffff8050530e>] lp_write+0x158/0x2d2
[<ffffffff80185716>] vfs_write+0x8e/0x2c2
[<ffffffff80185a74>] ksys_write+0x52/0xc2
[<ffffffff80185af2>] sys_write+0xe/0x16
[<ffffffff80003770>] ret_from_syscall+0x0/0x2
---[ end trace 0000000000000000 ]---

For simplicity address the problem by adding PCI_IOBASE to the physical
address requested in the respective wrapper macros only, observing that
the raw accessors such as `__insb', `__outsb', etc. are not supposed to
be used other than by said macros.  Remove the cast to `long' that is no
longer needed on `addr' now that it is used as an offset from PCI_IOBASE
and add parentheses around `addr' needed for predictable evaluation in
macro expansion.  No need to make said adjustments in separate changes
given that current code is gravely broken and does not ever work.

Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Fixes: fab957c11efe2 ("RISC-V: Atomic and Locking Code")
Cc: stable@vger.kernel.org # v4.15+
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2209220223080.29493@angie.orcam.me.uk
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:09 +02:00
Linus Walleij
ffb571e123 regulator: qcom_rpm: Fix circular deferral regression
commit 8478ed5844588703a1a4c96a004b1525fbdbdd5e upstream.

On recent kernels, the PM8058 L16 (or any other PM8058 LDO-regulator)
does not come up if they are supplied by an SMPS-regulator. This
is not very strange since the regulators are registered in a long
array and the L-regulators are registered before the S-regulators,
and if an L-regulator defers, it will never get around to registering
the S-regulator that it needs.

See arch/arm/boot/dts/qcom-apq8060-dragonboard.dts:

pm8058-regulators {
    (...)
    vdd_l13_l16-supply = <&pm8058_s4>;
    (...)

Ooops.

Fix this by moving the PM8058 S-regulators first in the array.

Do the same for the PM8901 S-regulators (though this is currently
not causing any problems with out device trees) so that the pattern
of registration order is the same on all PMnnnn chips.

Fixes: 087a1b5cdd55 ("regulator: qcom: Rework to single platform device")
Cc: stable@vger.kernel.org
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <andersson@kernel.org>
Cc: Konrad Dybcio <konrad.dybcio@somainline.org>
Cc: linux-arm-msm@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220909112529.239143-1-linus.walleij@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:09 +02:00
Liang He
85909424a1 hwmon: (gsc-hwmon) Call of_node_get() before of_find_xxx API
commit 7f62cf781e6567d59c8935dc8c6068ce2bb904b7 upstream.

In gsc_hwmon_get_devtree_pdata(), we should call of_node_get() before
the of_find_compatible_node() which will automatically call
of_node_put() for the 'from' argument.

Fixes: 3bce5377ef66 ("hwmon: Add Gateworks System Controller support")
Signed-off-by: Liang He <windhl@126.com>
Co-developed-by: Mengda Chen <chenmengda2009@163.com>
Signed-off-by: Mengda Chen <chenmengda2009@163.com>
Link: https://lore.kernel.org/r/20220916154708.3084515-1-chenmengda2009@163.com
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:09 +02:00
Krzysztof Kozlowski
8ef0e1c0ae ASoC: wcd934x: fix order of Slimbus unprepare/disable
commit e96bca7eaa5747633ec638b065630ff83728982a upstream.

Slimbus streams are first prepared and then enabled, so the cleanup path
should reverse it.  The unprepare sets stream->num_ports to 0 and frees
the stream->ports.  Calling disable after unprepare was not really
effective (channels was not deactivated) and could lead to further
issues due to making transfers on unprepared stream.

Fixes: a61f3b4f476e ("ASoC: wcd934x: add support to wcd9340/wcd9341 codec")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220921145354.1683791-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:09 +02:00
Krzysztof Kozlowski
9b2c82af65 ASoC: wcd9335: fix order of Slimbus unprepare/disable
commit ea8ef003aa53ad23e7705c5cab1c4e664faa6c79 upstream.

Slimbus streams are first prepared and then enabled, so the cleanup path
should reverse it.  The unprepare sets stream->num_ports to 0 and frees
the stream->ports.  Calling disable after unprepare was not really
effective (channels was not deactivated) and could lead to further
issues due to making transfers on unprepared stream.

Fixes: 20aedafdf492 ("ASoC: wcd9335: add support to wcd9335 codec")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220921145354.1683791-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:09 +02:00
Patryk Duda
1c20d672e3 platform/chrome: cros_ec_proto: Update version on GET_NEXT_EVENT failure
commit f74c7557ed0d321947e8bb4e9d47c1013f8b2227 upstream.

Some EC based devices (e.g. Fingerpint MCU) can jump to RO part of the
firmware (intentionally or due to device reboot). The RO part doesn't
change during the device lifecycle, so it won't support newer version
of EC_CMD_GET_NEXT_EVENT command.

Function cros_ec_query_all() is responsible for finding maximum
supported MKBP event version. It's usually called when the device is
running RW part of the firmware, so the command version can be
potentially higher than version supported by the RO.

The problem was fixed by updating maximum supported version when the
device returns EC_RES_INVALID_VERSION (mapped to -ENOPROTOOPT). That way
the kernel will use highest common version supported by RO and RW.

Fixes: 3300fdd630d4 ("platform/chrome: cros_ec: handle MKBP more events flag")
Cc: <stable@vger.kernel.org> # 5.10+
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Patryk Duda <pdk@semihalf.com>
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20220802154128.21175-1-pdk@semihalf.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:09 +02:00
Zhihao Cheng
6b7ae4a904 quota: Check next/prev free block number after reading from quota file
commit 6c8ea8b8cd4722efd419f91ca46a2dc81b7d89a3 upstream.

Following process:
 Init: v2_read_file_info: <3> dqi_free_blk 0 dqi_free_entry 5 dqi_blks 6

 Step 1. chown bin f_a -> dquot_acquire -> v2_write_dquot:
  qtree_write_dquot
   do_insert_tree
    find_free_dqentry
     get_free_dqblk
      write_blk(info->dqi_blocks) // info->dqi_blocks = 6, failure. The
	   content in physical block (corresponding to blk 6) is random.

 Step 2. chown root f_a -> dquot_transfer -> dqput_all -> dqput ->
         ext4_release_dquot -> v2_release_dquot -> qtree_delete_dquot:
  dquot_release
   remove_tree
    free_dqentry
     put_free_dqblk(6)
      info->dqi_free_blk = blk    // info->dqi_free_blk = 6

 Step 3. drop cache (buffer head for block 6 is released)

 Step 4. chown bin f_b -> dquot_acquire -> commit_dqblk -> v2_write_dquot:
  qtree_write_dquot
   do_insert_tree
    find_free_dqentry
     get_free_dqblk
      dh = (struct qt_disk_dqdbheader *)buf
      blk = info->dqi_free_blk     // 6
      ret = read_blk(info, blk, buf)  // The content of buf is random
      info->dqi_free_blk = le32_to_cpu(dh->dqdh_next_free)  // random blk

 Step 5. chown bin f_c -> notify_change -> ext4_setattr -> dquot_transfer:
  dquot = dqget -> acquire_dquot -> ext4_acquire_dquot -> dquot_acquire ->
          commit_dqblk -> v2_write_dquot -> dq_insert_tree:
   do_insert_tree
    find_free_dqentry
     get_free_dqblk
      blk = info->dqi_free_blk    // If blk < 0 and blk is not an error
				     code, it will be returned as dquot

  transfer_to[USRQUOTA] = dquot  // A random negative value
  __dquot_transfer(transfer_to)
   dquot_add_inodes(transfer_to[cnt])
    spin_lock(&dquot->dq_dqb_lock)  // page fault

, which will lead to kernel page fault:
 Quota error (device sda): qtree_write_dquot: Error -8000 occurred
 while creating quota
 BUG: unable to handle page fault for address: ffffffffffffe120
 #PF: supervisor write access in kernel mode
 #PF: error_code(0x0002) - not-present page
 Oops: 0002 [#1] PREEMPT SMP
 CPU: 0 PID: 5974 Comm: chown Not tainted 6.0.0-rc1-00004
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
 RIP: 0010:_raw_spin_lock+0x3a/0x90
 Call Trace:
  dquot_add_inodes+0x28/0x270
  __dquot_transfer+0x377/0x840
  dquot_transfer+0xde/0x540
  ext4_setattr+0x405/0x14d0
  notify_change+0x68e/0x9f0
  chown_common+0x300/0x430
  __x64_sys_fchownat+0x29/0x40

In order to avoid accessing invalid quota memory address, this patch adds
block number checking of next/prev free block read from quota file.

Fetch a reproducer in [Link].

Link: https://bugzilla.kernel.org/show_bug.cgi?id=216372
Fixes: 1da177e4c3f4152 ("Linux-2.6.12-rc2")
CC: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220923134555.2623931-2-chengzhihao1@huawei.com
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:09 +02:00
Andri Yngvason
5b1a56beb6 HID: multitouch: Add memory barriers
commit be6e2b5734a425941fcdcdbd2a9337be498ce2cf upstream.

This fixes broken atomic checks which cause a race between the
release-timer and processing of hid input.

I noticed that contacts were sometimes sticking, even with the "sticky
fingers" quirk enabled. This fixes that problem.

Cc: stable@vger.kernel.org
Fixes: 9609827458c3 ("HID: multitouch: optimize the sticky fingers timer")
Signed-off-by: Andri Yngvason <andri@yngvason.is>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20220907150159.2285460-1-andri@yngvason.is
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:09 +02:00
Alexander Aring
bfe60d7641 fs: dlm: handle -EBUSY first in lock arg validation
commit 44637ca41d551d409a481117b07fa209b330fca9 upstream.

During lock arg validation, first check for -EBUSY cases, then for
-EINVAL cases. The -EINVAL checks look at lkb state variables
which are not stable when an lkb is busy and would cause an
-EBUSY result, e.g. lkb->lkb_grmode.

Cc: stable@vger.kernel.org
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:08 +02:00
Alexander Aring
0b2d8e4db4 fs: dlm: fix race between test_bit() and queue_work()
commit eef6ec9bf390e836a6c4029f3620fe49528aa1fe upstream.

This patch fixes a race by using ls_cb_mutex around the bit
operations and conditional code blocks for LSFL_CB_DELAY.

The function dlm_callback_stop() expects to stop all callbacks and
flush all currently queued onces. The set_bit() is not enough because
there can still be queue_work() after the workqueue was flushed.
To avoid queue_work() after set_bit(), surround both by ls_cb_mutex.

Cc: stable@vger.kernel.org
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:08 +02:00
Wenchao Chen
057d5838c7 mmc: sdhci-sprd: Fix minimum clock limit
commit 6e141772e6465f937458b35ddcfd0a981b6f5280 upstream.

The Spreadtrum controller supports 100KHz minimal clock rate, which means
that the current value 400KHz is wrong.

Unfortunately this has also lead to fail to initialize some cards, which
are allowed to require 100KHz to work. So, let's fix the problem by
changing the minimal supported clock rate to 100KHz.

Signed-off-by: Wenchao Chen <wenchao.chen@unisoc.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: fb8bd90f83c4 ("mmc: sdhci-sprd: Add Spreadtrum's initial host controller")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221011104935.10980-1-wenchao.chen666@gmail.com
[Ulf: Clarified to commit-message]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:08 +02:00
Anssi Hannula
448fffc1ae can: kvaser_usb_leaf: Fix CAN state after restart
commit 0be1a655fe68c8e6dcadbcbddb69cf2fb29881f5 upstream.

can_restart() expects CMD_START_CHIP to set the error state to
ERROR_ACTIVE as it calls netif_carrier_on() immediately afterwards.

Otherwise the user may immediately trigger restart again and hit a
BUG_ON() in can_restart().

Fix kvaser_usb_leaf set_mode(CMD_START_CHIP) to set the expected state.

Cc: stable@vger.kernel.org
Fixes: 080f40a6fa28 ("can: kvaser_usb: Add support for Kvaser CAN/USB devices")
Tested-by: Jimmy Assarsson <extja@kvaser.com>
Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi>
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Link: https://lore.kernel.org/all/20221010150829.199676-5-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:08 +02:00
Anssi Hannula
a3776e09b3 can: kvaser_usb_leaf: Fix TX queue out of sync after restart
commit 455561fb618fde40558776b5b8435f9420f335db upstream.

The TX queue seems to be implicitly flushed by the hardware during
bus-off or bus-off recovery, but the driver does not reset the TX
bookkeeping.

Despite not resetting TX bookkeeping the driver still re-enables TX
queue unconditionally, leading to "cannot find free context" /
NETDEV_TX_BUSY errors if the TX queue was full at bus-off time.

Fix that by resetting TX bookkeeping on CAN restart.

Tested with 0bfd:0124 Kvaser Mini PCI Express 2xHS FW 4.18.778.

Cc: stable@vger.kernel.org
Fixes: 080f40a6fa28 ("can: kvaser_usb: Add support for Kvaser CAN/USB devices")
Tested-by: Jimmy Assarsson <extja@kvaser.com>
Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi>
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Link: https://lore.kernel.org/all/20221010150829.199676-4-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:08 +02:00
Anssi Hannula
0f8c88978d can: kvaser_usb_leaf: Fix overread with an invalid command
commit 1499ecaea9d2ba68d5e18d80573b4561a8dc4ee7 upstream.

For command events read from the device,
kvaser_usb_leaf_read_bulk_callback() verifies that cmd->len does not
exceed the size of the received data, but the actual kvaser_cmd handlers
will happily read any kvaser_cmd fields without checking for cmd->len.

This can cause an overread if the last cmd in the buffer is shorter than
expected for the command type (with cmd->len showing the actual short
size).

Maximum overread seems to be 22 bytes (CMD_LEAF_LOG_MESSAGE), some of
which are delivered to userspace as-is.

Fix that by verifying the length of command before handling it.

This issue can only occur after RX URBs have been set up, i.e. the
interface has been opened at least once.

Cc: stable@vger.kernel.org
Fixes: 080f40a6fa28 ("can: kvaser_usb: Add support for Kvaser CAN/USB devices")
Tested-by: Jimmy Assarsson <extja@kvaser.com>
Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi>
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Link: https://lore.kernel.org/all/20221010150829.199676-2-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:08 +02:00
Anssi Hannula
5d1cb7bfad can: kvaser_usb: Fix use of uninitialized completion
commit cd7f30e174d09a02ca2afa5ef093fb0f0352e0d8 upstream.

flush_comp is initialized when CMD_FLUSH_QUEUE is sent to the device and
completed when the device sends CMD_FLUSH_QUEUE_RESP.

This causes completion of uninitialized completion if the device sends
CMD_FLUSH_QUEUE_RESP before CMD_FLUSH_QUEUE is ever sent (e.g. as a
response to a flush by a previously bound driver, or a misbehaving
device).

Fix that by initializing flush_comp in kvaser_usb_init_one() like the
other completions.

This issue is only triggerable after RX URBs have been set up, i.e. the
interface has been opened at least once.

Cc: stable@vger.kernel.org
Fixes: aec5fb2268b7 ("can: kvaser_usb: Add support for Kvaser USB hydra family")
Tested-by: Jimmy Assarsson <extja@kvaser.com>
Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi>
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Link: https://lore.kernel.org/all/20221010150829.199676-3-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:08 +02:00
Jean-Francois Le Fillatre
b239a0993a usb: add quirks for Lenovo OneLink+ Dock
commit 37d49519b41405b08748392c6a7f193d9f77ecd2 upstream.

The Lenovo OneLink+ Dock contains two VL812 USB3.0 controllers:
17ef:1018 upstream
17ef:1019 downstream

These hubs suffer from two separate problems:

1) After the host system was suspended and woken up, the hubs appear to
   be in a random state. Some downstream ports (both internal to the
   built-in audio and network controllers, and external to USB sockets)
   may no longer be functional. The exact list of disabled ports (if
   any) changes from wakeup to wakeup. Ports remain in that state until
   the dock is power-cycled, or until the laptop is rebooted.

   Wakeup sources connected to the hubs (keyboard, WoL on the integrated
   gigabit controller) will wake the system up from suspend, but they
   may no longer work after wakeup (and in that case will no longer work
   as wakeup source in a subsequent suspend-wakeup cycle).

   This issue appears in the logs with messages such as:

     usb 1-6.1-port4: cannot disable (err = -71)
     usb 1-6-port2: cannot disable (err = -71)
     usb 1-6.1: clear tt 1 (80c0) error -71
     usb 1-6-port4: cannot disable (err = -71)
     usb 1-6.4: PM: dpm_run_callback(): usb_dev_resume+0x0/0x10 [usbcore] returns -71
     usb 1-6.4: PM: failed to resume async: error -71
     usb 1-7: reset full-speed USB device number 5 using xhci_hcd
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: Cannot enable. Maybe the USB cable is bad?
     usb 1-6.1-port1: cannot disable (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: Cannot enable. Maybe the USB cable is bad?
     usb 1-6.1-port1: cannot disable (err = -71)

2) Some USB devices cannot be enumerated properly. So far I have only
   seen the issue with USB 3.0 devices. The same devices work without
   problem directly connected to the host system, to other systems or to
   other hubs (even when those hubs are connected to the OneLink+ dock).

   One very reliable reproducer is this USB 3.0 HDD enclosure:
   152d:9561 JMicron Technology Corp. / JMicron USA Technology Corp. Mobius

   I have seen it happen sporadically with other USB 3.0 enclosures,
   with controllers from different manufacturers, all self-powered.

   Typical messages in the logs:

     xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command
     xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command
     usb 2-1.4: device not accepting address 6, error -62
     xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command
     xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command
     usb 2-1.4: device not accepting address 7, error -62
     usb 2-1-port4: attempt power cycle
     xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command
     xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command
     usb 2-1.4: device not accepting address 8, error -62
     xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command
     xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command
     usb 2-1.4: device not accepting address 9, error -62
     usb 2-1-port4: unable to enumerate USB device

Through trial and error, I found that the USB_QUIRK_RESET_RESUME solved
the second issue. Further testing then uncovered the first issue. Test
results are summarized in this table:

=======================================================================================
Settings                        USB2 hotplug    USB3 hotplug    State after waking up
---------------------------------------------------------------------------------------

power/control=auto              works           fails           broken

usbcore.autosuspend=-1          works           works           broken
OR power/control=on

power/control=auto              works (1)       works (1)       works
and USB_QUIRK_RESET_RESUME

power/control=on                works           works           works
and USB_QUIRK_RESET_RESUME

HUB_QUIRK_DISABLE_AUTOSUSPEND   works           works           works
and USB_QUIRK_RESET_RESUME

=======================================================================================

In those results, the power/control settings are applied to both hubs,
both on the USB2 and USB3 side, before each test.

From those results, USB_QUIRK_RESET_RESUME is required to reset the hubs
properly after a suspend-wakeup cycle, and the hubs must not autosuspend
to work around the USB3 issue.

A secondary effect of USB_QUIRK_RESET_RESUME is to prevent the hubs'
upstream links from suspending (the downstream ports can still suspend).
This secondary effect is used in results (1). It is enough to solve the
USB3 problem.

Setting USB_QUIRK_RESET_RESUME on those hubs is the smallest patch that
solves both issues.

Prior to creating this patch, I have used the USB_QUIRK_RESET_RESUME via
the kernel command line for over a year without noticing any side
effect.

Thanks to Oliver Neukum @Suse for explanations of the operations of
USB_QUIRK_RESET_RESUME, and requesting more testing.

Signed-off-by: Jean-Francois Le Fillatre <jflf_kernel@gmx.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20220927073407.5672-1-jflf_kernel@gmx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:08 +02:00
Eddie James
afbbf305db iio: pressure: dps310: Reset chip after timeout
commit 7b4ab4abcea4c0c10b25187bf2569e5a07e9a20c upstream.

The DPS310 chip has been observed to get "stuck" such that pressure
and temperature measurements are never indicated as "ready" in the
MEAS_CFG register. The only solution is to reset the device and try
again. In order to avoid continual failures, use a boolean flag to
only try the reset after timeout once if errors persist.

Fixes: ba6ec48e76bc ("iio: Add driver for Infineon DPS310")
Cc: <stable@vger.kernel.org>
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220915195719.136812-3-eajames@linux.ibm.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:07 +02:00
Eddie James
9daadd1d10 iio: pressure: dps310: Refactor startup procedure
commit c2329717bdd3fa62f8a2f3d8d85ad0bee4556bd7 upstream.

Move the startup procedure into a function, and correct a missing
check on the return code for writing the PRS_CFG register.

Cc: <stable@vger.kernel.org>
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220915195719.136812-2-eajames@linux.ibm.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:07 +02:00
Nuno Sá
ae49d80400 iio: adc: ad7923: fix channel readings for some variants
commit f4f43f01cff2f29779343ade755191afd2581c77 upstream.

Some of the supported devices have 4 or 2 LSB trailing bits that should
not be taken into account. Hence we need to shift these bits out which
fits perfectly on the scan type shift property. This change fixes both
raw and buffered reads.

Fixes: f2f7a449707e ("iio:adc:ad7923: Add support for the ad7904/ad7914/ad7924")
Fixes: 851644a60d20 ("iio: adc: ad7923: Add support for the ad7908/ad7918/ad7928")
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220912081223.173584-2-nuno.sa@analog.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:07 +02:00
Uwe Kleine-König
ea4dcd3d6a iio: ltc2497: Fix reading conversion results
commit 7f4f1096d5921f5d90547596f9ce80e0b924f887 upstream.

After the result of the previous conversion is read the chip
automatically starts a new conversion and doesn't accept new i2c
transfers until this conversion is completed which makes the function
return failure.

So add an early return iff the programming of the new address isn't
needed. Note this will not fix the problem in general, but all cases
that are currently used. Once this changes we get the failure back, but
this can be addressed when the need arises.

Fixes: 69548b7c2c4f ("iio: adc: ltc2497: split protocol independent part in a separate module ")
Reported-by: Meng Li <Meng.Li@windriver.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tested-by: Denys Zagorui <dzagorui@cisco.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220815091647.1523532-1-dzagorui@cisco.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:07 +02:00
Michael Hennerich
30e1bd0d3e iio: dac: ad5593r: Fix i2c read protocol requirements
commit 558a25f903b4af6361b7fbeea08a6446a0745653 upstream.

For reliable operation across the full range of supported
interface rates, the AD5593R needs a STOP condition between
address write, and data read (like show in the datasheet Figure 40)
so in turn i2c_smbus_read_word_swapped cannot be used.

While at it, a simple helper was added to make the code simpler.

Fixes: 56ca9db862bf ("iio: dac: Add support for the AD5592R/AD5593R ADCs/DACs")
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220913073413.140475-2-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:07 +02:00
Zhang Xiaoxu
9312e04b6c cifs: Fix the error length of VALIDATE_NEGOTIATE_INFO message
commit e98ecc6e94f4e6d21c06660b0f336df02836694f upstream.

Commit d5c7076b772a ("smb3: add smb3.1.1 to default dialect list")
extend the dialects from 3 to 4, but forget to decrease the extended
length when specific the dialect, then the message length is larger
than expected.

This maybe leak some info through network because not initialize the
message body.

After apply this patch, the VALIDATE_NEGOTIATE_INFO message length is
reduced from 28 bytes to 26 bytes.

Fixes: d5c7076b772a ("smb3: add smb3.1.1 to default dialect list")
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Cc: <stable@vger.kernel.org>
Acked-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Tom Talpey <tom@talpey.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:07 +02:00
Ronnie Sahlberg
64f23e5430 cifs: destage dirty pages before re-reading them for cache=none
commit bb44c31cdcac107344dd2fcc3bd0504a53575c51 upstream.

This is the opposite case of kernel bugzilla 216301.
If we mmap a file using cache=none and then proceed to update the mmapped
area these updates are not reflected in a later pread() of that part of the
file.
To fix this we must first destage any dirty pages in the range before
we allow the pread() to proceed.

Cc: stable@vger.kernel.org
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:07 +02:00
Tudor Ambarus
50d3d89537 mtd: rawnand: atmel: Unmap streaming DMA mappings
commit 1161703c9bd664da5e3b2eb1a3bb40c210e026ea upstream.

Every dma_map_single() call should have its dma_unmap_single() counterpart,
because the DMA address space is a shared resource and one could render the
machine unusable by consuming all DMA addresses.

Link: https://lore.kernel.org/lkml/13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se/
Cc: stable@vger.kernel.org
Fixes: f88fc122cc34 ("mtd: nand: Cleanup/rework the atmel_nand driver")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Acked-by: Alexander Dahl <ada@thorsis.com>
Reported-by: Peter Rosin <peda@axentia.se>
Tested-by: Alexander Dahl <ada@thorsis.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Tested-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220728074014.145406-1-tudor.ambarus@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:07 +02:00
Saranya Gopal
e8eb44eeee ALSA: hda/realtek: Add Intel Reference SSID to support headset keys
commit 4f2e56a59b9947b3e698d3cabcb858765c12b1e8 upstream.

This patch fixes the issue with 3.5mm headset keys
on RPL-P platform.

[ Rearranged the entry in SSID order by tiwai ]

Signed-off-by: Saranya Gopal <saranya.gopal@intel.com>
Signed-off-by: Ninad Naik <ninad.naik@intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221011044916.2278867-1-saranya.gopal@intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:06 +02:00
Luke D. Jones
4491fbd0a7 ALSA: hda/realtek: Add quirk for ASUS GV601R laptop
commit 2ea8e1297801f7b0220ebf6ae61a5b74ca83981e upstream.

The ASUS ROG X16 (GV601R) series laptop has the same node-to-DAC pairs
as early models and the G14, this includes bass speakers which are by
default mapped incorrectly to the 0x06 node.

Add a quirk to use the same DAC pairs as the G14.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221010070347.36883-1-luke@ljones.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:06 +02:00
Luke D. Jones
4285d06d12 ALSA: hda/realtek: Correct pin configs for ASUS G533Z
commit 66ba7c88507344dee68ad1acbdb630473ab36114 upstream.

The initial fix for ASUS G533Z was based on faulty information. This
fixes the pincfg to values that have been verified with no existing
module options or other hacks enabled.

Enables headphone jack, and 5.1 surround.

[ corrected the indent level by tiwai ]

Fixes: bc2c23549ccd ("ALSA: hda/realtek: Add pincfg for ASUS G533Z HP jack")
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221010065702.35190-1-luke@ljones.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:06 +02:00
Callum Osmotherly
768cd2cd1a ALSA: hda/realtek: remove ALC289_FIXUP_DUAL_SPK for Dell 5530
commit 417b9c51f59734d852e47252476fadc293ad994a upstream.

After some feedback from users with Dell Precision 5530 machines, this
patch reverts the previous change to add ALC289_FIXUP_DUAL_SPK.
While it improved the speaker output quality, it caused the headphone
jack to have an audible "pop" sound when power saving was toggled.

Fixes: 1885ff13d4c4 ("ALSA: hda/realtek: Enable 4-speaker output Dell Precision 5530 laptop")
Signed-off-by: Callum Osmotherly <callum.osmotherly@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/Yz0uyN1zwZhnyRD6@piranha
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:06 +02:00
Takashi Iwai
3e29645fba ALSA: usb-audio: Fix NULL dererence at error path
commit 568be8aaf8a535f79c4db76cabe17b035aa2584d upstream.

At an error path to release URB buffers and contexts, the driver might
hit a NULL dererence for u->urb pointer, when u->buffer_size has been
already set but the actual URB allocation failed.

Fix it by adding the NULL check of urb.  Also, make sure that
buffer_size is cleared after the error path or the close.

Cc: <stable@vger.kernel.org>
Reported-by: Sabri N. Ferreiro <snferreiro1@gmail.com>
Link: https://lore.kernel.org/r/CAKG+3NRjTey+fFfUEGwuxL-pi_=T4cUskYG9OzpzHytF+tzYng@mail.gmail.com
Link: https://lore.kernel.org/r/20220930100129.19445-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:06 +02:00
Takashi Iwai
bc1d16d282 ALSA: usb-audio: Fix potential memory leaks
commit 6382da0828995af87aa8b8bef28cc61aceb4aff3 upstream.

When the driver hits -ENOMEM at allocating a URB or a buffer, it
aborts and goes to the error path that releases the all previously
allocated resources.  However, when -ENOMEM hits at the middle of the
sync EP URB allocation loop, the partially allocated URBs might be
left without released, because ep->nurbs is still zero at that point.

Fix it by setting ep->nurbs at first, so that the error handler loops
over the full URB list.

Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220930100151.19461-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:06 +02:00
Takashi Iwai
ef1658bc48 ALSA: rawmidi: Drop register_mutex in snd_rawmidi_free()
commit a70aef7982b012e86dfd39fbb235e76a21ae778a upstream.

The register_mutex taken around the dev_unregister callback call in
snd_rawmidi_free() may potentially lead to a mutex deadlock, when OSS
emulation and a hot unplug are involved.

Since the mutex doesn't protect the actual race (as the registration
itself is already protected by another means), let's drop it.

Link: https://lore.kernel.org/r/CAB7eexJP7w1B0mVgDF0dQ+gWor7UdkiwPczmL7pn91xx8xpzOA@mail.gmail.com
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221011070147.7611-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:06 +02:00
Takashi Iwai
026fcb6336 ALSA: oss: Fix potential deadlock at unregistration
commit 97d917879d7f92df09c3f21fd54609a8bcd654b2 upstream.

We took sound_oss_mutex around the calls of unregister_sound_special()
at unregistering OSS devices.  This may, however, lead to a deadlock,
because we manage the card release via the card's device object, and
the release may happen at unregister_sound_special() call -- which
will take sound_oss_mutex again in turn.

Although the deadlock might be fixed by relaxing the rawmidi mutex in
the previous commit, it's safer to move unregister_sound_special()
calls themselves out of the sound_oss_mutex, too.  The call is
race-safe as the function has a spinlock protection by itself.

Link: https://lore.kernel.org/r/CAB7eexJP7w1B0mVgDF0dQ+gWor7UdkiwPczmL7pn91xx8xpzOA@mail.gmail.com
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221011070147.7611-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:06 +02:00
Greg Kroah-Hartman
09be132bfe Linux 5.10.149
Link: https://lore.kernel.org/r/20221016064454.382206984@linuxfoundation.org
Tested-by: Rudi Heitbaum <rudi@heitbaum.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
v5.10.149
2022-10-17 17:26:07 +02:00
Johannes Berg
31ce5da48a wifi: mac80211: fix MBSSID parsing use-after-free
Commit ff05d4b45dd89b922578dac497dcabf57cf771c6 upstream.
This is a different version of the commit, changed to store
the non-transmitted profile in the elems, and freeing it in
the few places where it's relevant, since that is only the
case when the last argument for parsing (the non-tx BSSID)
is non-NULL.

When we parse a multi-BSSID element, we might point some
element pointers into the allocated nontransmitted_profile.
However, we free this before returning, causing UAF when the
relevant pointers in the parsed elements are accessed.

Fix this by not allocating the scratch buffer separately but
as part of the returned structure instead, that way, there
are no lifetime issues with it.

The scratch buffer introduction as part of the returned data
here is taken from MLO feature work done by Ilan.

This fixes CVE-2022-42719.

Fixes: 5023b14cf4df ("mac80211: support profile split between elements")
Co-developed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-17 17:26:07 +02:00
Johannes Berg
353b5c8d4b wifi: mac80211: don't parse mbssid in assoc response
This is simply not valid and simplifies the next commit.
I'll make a separate patch for this in the current main
tree as well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-17 17:26:07 +02:00
Johannes Berg
66dacdbc2e mac80211: mlme: find auth challenge directly
There's no need to parse all elements etc. just to find the
authentication challenge - use cfg80211_find_elem() instead.
This also allows us to remove WLAN_EID_CHALLENGE handling
from the element parsing entirely.

Link: https://lore.kernel.org/r/20210920154009.45f9b3a15722.Ice3159ffad03a007d6154cbf1fb3a8c48489e86f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-17 17:26:07 +02:00
Sasha Levin
a07708a843 Revert "fs: check FMODE_LSEEK to control internal pipe splicing"
This reverts commit fd0a6e99b61e6c08fa5cf585d54fd956f70c73a6.

Which was upstream commit 97ef77c52b789ec1411d360ed99dca1efe4b2c81.

The commit is missing dependencies and breaks NFS tests, remove it for
now.

Reported-by: Saeed Mirzamohammadi <saeed.mirzamohammadi@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-17 17:26:07 +02:00
Greg Kroah-Hartman
3783e64fee Linux 5.10.148
Link: https://lore.kernel.org/r/20221013175147.337501757@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Slade Watkins <srw@sladewatkins.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Rudi Heitbaum <rudi@heitbaum.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
v5.10.148
2022-10-15 07:55:57 +02:00
Shunsuke Mie
0df206bdc6 misc: pci_endpoint_test: Fix pci_endpoint_test_{copy,write,read}() panic
commit 8e30538eca016de8e252bef174beadecd64239f0 upstream.

The dma_map_single() doesn't permit zero length mapping. It causes a follow
panic.

A panic was reported on arm64:

[   60.137988] ------------[ cut here ]------------
[   60.142630] kernel BUG at kernel/dma/swiotlb.c:624!
[   60.147508] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
[   60.152992] Modules linked in: dw_hdmi_cec crct10dif_ce simple_bridge rcar_fdp1 vsp1 rcar_vin videobuf2_vmalloc rcar_csi2 v4l
2_mem2mem videobuf2_dma_contig videobuf2_memops pci_endpoint_test videobuf2_v4l2 videobuf2_common rcar_fcp v4l2_fwnode v4l2_asyn
c videodev mc gpio_bd9571mwv max9611 pwm_rcar ccree at24 authenc libdes phy_rcar_gen3_usb3 usb_dmac display_connector pwm_bl
[   60.186252] CPU: 0 PID: 508 Comm: pcitest Not tainted 6.0.0-rc1rpci-dev+ #237
[   60.193387] Hardware name: Renesas Salvator-X 2nd version board based on r8a77951 (DT)
[   60.201302] pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   60.208263] pc : swiotlb_tbl_map_single+0x2c0/0x590
[   60.213149] lr : swiotlb_map+0x88/0x1f0
[   60.216982] sp : ffff80000a883bc0
[   60.220292] x29: ffff80000a883bc0 x28: 0000000000000000 x27: 0000000000000000
[   60.227430] x26: 0000000000000000 x25: ffff0004c0da20d0 x24: ffff80000a1f77c0
[   60.234567] x23: 0000000000000002 x22: 0001000040000010 x21: 000000007a000000
[   60.241703] x20: 0000000000200000 x19: 0000000000000000 x18: 0000000000000000
[   60.248840] x17: 0000000000000000 x16: 0000000000000000 x15: ffff0006ff7b9180
[   60.255977] x14: ffff0006ff7b9180 x13: 0000000000000000 x12: 0000000000000000
[   60.263113] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
[   60.270249] x8 : 0001000000000010 x7 : ffff0004c6754b20 x6 : 0000000000000000
[   60.277385] x5 : ffff0004c0da2090 x4 : 0000000000000000 x3 : 0000000000000001
[   60.284521] x2 : 0000000040000000 x1 : 0000000000000000 x0 : 0000000040000010
[   60.291658] Call trace:
[   60.294100]  swiotlb_tbl_map_single+0x2c0/0x590
[   60.298629]  swiotlb_map+0x88/0x1f0
[   60.302115]  dma_map_page_attrs+0x188/0x230
[   60.306299]  pci_endpoint_test_ioctl+0x5e4/0xd90 [pci_endpoint_test]
[   60.312660]  __arm64_sys_ioctl+0xa8/0xf0
[   60.316583]  invoke_syscall+0x44/0x108
[   60.320334]  el0_svc_common.constprop.0+0xcc/0xf0
[   60.325038]  do_el0_svc+0x2c/0xb8
[   60.328351]  el0_svc+0x2c/0x88
[   60.331406]  el0t_64_sync_handler+0xb8/0xc0
[   60.335587]  el0t_64_sync+0x18c/0x190
[   60.339251] Code: 52800013 d2e00414 35fff45c d503201f (d4210000)
[   60.345344] ---[ end trace 0000000000000000 ]---

To fix it, this patch adds a checking the payload length if it is zero.

Fixes: 343dc693f7b7 ("misc: pci_endpoint_test: Prevent some integer overflows")
Cc: stable <stable@kernel.org>
Signed-off-by: Shunsuke Mie <mie@igel.co.jp>
Link: https://lore.kernel.org/r/20220907020100.122588-2-mie@igel.co.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-15 07:55:57 +02:00
Shunsuke Mie
40a29e58f6 misc: pci_endpoint_test: Aggregate params checking for xfer
commit 3e42deaac06567c7e86d287c305ccda24db4ae3d upstream.

Each transfer test functions have same parameter checking code. This patch
unites those to an introduced function.

Signed-off-by: Shunsuke Mie <mie@igel.co.jp>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20220907020100.122588-1-mie@igel.co.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-15 07:55:56 +02:00