drm/amdgpu/atom: Check kcalloc() for WS buffer in amdgpu_atom_execute_table_locked()

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[ Upstream commit cc9a8e238e ]

kcalloc() may fail. When WS is non-zero and allocation fails, ectx.ws
remains NULL while ectx.ws_size is set, leading to a potential NULL
pointer dereference in atom_get_src_int() when accessing WS entries.

Return -ENOMEM on allocation failure to avoid the NULL dereference.

Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Guangshuo Li 2025-09-18 18:57:05 +08:00 • committed by Greg Kroah-Hartman

parent cbf2f527ae

commit 35f3fb86bb

1 changed files with 4 additions and 0 deletions

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drivers/gpu/drm/amd/amdgpu/atom.c

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