drm/amd/display: fix the system memory page fault because of copy overflow

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The buffer is allocated with the size of pointer and copy with the size of
data structure. Then trigger the system memory page fault. Use the
orignal data structure to get the object size.

Fixes: 3a00c04212 ("drm/amd/display/dc/core/dc_link: Move some local data from the stack to the heap")
Signed-off-by: Huang Rui <ray.huang@amd.com>
Cc: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Jinzhou.Su <Jinzhou.Su@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Huang Rui 2021-01-16 02:39:14 +08:00 • committed by Alex Deucher

parent 3f5f188963

commit b479efb0a9

1 changed files with 2 additions and 2 deletions

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drivers/gpu/drm/amd/display/dc/core/dc_link.c

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