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drm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_ld_modes
authorMa Ke <make24@iscas.ac.cn>
Tue, 25 Jun 2024 08:18:28 +0000 (16:18 +0800)
committerLyude Paul <lyude@redhat.com>
Tue, 25 Jun 2024 19:30:50 +0000 (15:30 -0400)
commit66edf3fb331b6c55439b10f9862987b0916b3726
treea96f6defd3109354dc3eaeb3d66a491e556cbdebtree
parent6d411c8ccc0137a612e0044489030a194ff5c843commit | diff
drm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_ld_modes

In nv17_tv_get_ld_modes(), the return value of drm_mode_duplicate() is
assigned to mode, which will lead to a possible NULL pointer dereference
on failure of drm_mode_duplicate(). Add a check to avoid npd.

Cc: stable@vger.kernel.org
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240625081828.2620794-1-make24@iscas.ac.cn
drivers/gpu/drm/nouveau/dispnv04/tvnv17.c diff | blob | history
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