Files
linux/drivers
Nikita Zhandarovich dd8689b52a drm/radeon: fix uninitialized size issue in radeon_vce_cs_parse()
On the off chance that command stream passed from userspace via
ioctl() call to radeon_vce_cs_parse() is weirdly crafted and
first command to execute is to encode (case 0x03000001), the function
in question will attempt to call radeon_vce_cs_reloc() with size
argument that has not been properly initialized. Specifically, 'size'
will point to 'tmp' variable before the latter had a chance to be
assigned any value.

Play it safe and init 'tmp' with 0, thus ensuring that
radeon_vce_cs_reloc() will catch an early error in cases like these.

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

Fixes: 2fc5703abd ("drm/radeon: check VCE relocation buffer range v3")
Signed-off-by: Nikita Zhandarovich <n.zhandarovich@fintech.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 2d52de55f9)
Cc: stable@vger.kernel.org
2025-03-18 16:24:44 -04:00
..
2025-01-10 10:15:04 +01:00
2025-03-06 10:33:07 +01:00
2025-01-18 17:10:05 -08:00
2025-01-18 14:38:49 -06:00
2025-02-07 12:43:58 +01:00
2025-02-06 11:33:51 +00:00
2025-02-14 15:17:34 +01:00