Skip to content

Draft: CVE-2024-41095: drm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_ld_modes

CKI Backport Bot requested to merge redhat/red-hat-ci-tools/kernel/bot-branches/centos-stream-9:backport-RHEL-51430-centos-stream-9-main into main

JIRA: https://issues.redhat.com/browse/RHEL-51430
CVE: CVE-2024-41095

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
(cherry picked from commit 66edf3fb331b6c55439b10f9862987b0916b3726)

Signed-off-by: CKI Backport Bot cki-ci-bot+cki-gitlab-backport-bot@redhat.com

Merge request reports