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(parent: 4e3d950) | patch
drm/amd/pm: Prevent division by zero
authorDenis Arefev <arefev@swemel.ru>
Fri, 21 Mar 2025 11:08:15 +0000 (14:08 +0300)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 26 Mar 2025 21:41:37 +0000 (17:41 -0400)
commit4b8c3c0d17c07f301011e2908fecd2ebdcfe3d1c
treed3fc95429a1e7719634e06fd142b465ce92c63e3tree
parent4e3d9508c056d7e0a56b58d5c81253e2a0d22b6ccommit | 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: c52dcf49195d ("drm/amd/pp: Avoid divide-by-zero in fan_ctrl_set_fan_speed_rpm")
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/vega10_thermal.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)