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| author | Paweł Gronowski <me@woland.xyz> | 2020-07-19 17:54:53 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-07-21 16:00:01 -0400 |
| commit | 38e0c89a19fd13f28d2b4721035160a3e66e270b (patch) | |
| tree | 67209423cb97b92161898d48aa6f268cd9381f2a /drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | |
| parent | 88bb16ad998a0395fe4b346b7d3f621aaa0a2324 (diff) | |
| download | linux-38e0c89a19fd13f28d2b4721035160a3e66e270b.tar.bz2 | |
drm/amdgpu: Fix NULL dereference in dpm sysfs handlers
NULL dereference occurs when string that is not ended with space or
newline is written to some dpm sysfs interface (for example pp_dpm_sclk).
This happens because strsep replaces the tmp with NULL if the delimiter
is not present in string, which is then dereferenced by tmp[0].
Reproduction example:
sudo sh -c 'echo -n 1 > /sys/class/drm/card0/device/pp_dpm_sclk'
Signed-off-by: Paweł Gronowski <me@woland.xyz>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c')
0 files changed, 0 insertions, 0 deletions