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(parent: 7d641c2) | patch
drm/amd/pm: Prevent division by zero
authorDenis Arefev <arefev@swemel.ru>
Fri, 21 Mar 2025 10:52:33 +0000 (13:52 +0300)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 26 Mar 2025 21:41:31 +0000 (17:41 -0400)
commit4e3d9508c056d7e0a56b58d5c81253e2a0d22b6c
tree1e0c4212b2c6d0ce95784411dc51b1975765978atree
parent7d641c2b83275d3b0424127b2e0d2d0f7dd82aefcommit | diff
drm/amd/pm: Prevent division by zero

The user can set any speed value.
If speed is greater than UINT_MAX/8, division by zero is possible.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 031db09017da ("drm/amd/powerplay/vega20: enable fan RPM and pwm settings V2")
Signed-off-by: Denis Arefev <arefev@swemel.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_thermal.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)