In the Linux kernel, the following vulnerability has been resolved:
drm/client: Do not destroy NULL modes
'modes' in drm_client_modeset_probe may fail to kcalloc. If this
occurs, we jump to 'out', calling modes_destroy on it, which
dereferences it. This may result in a NULL pointer dereference in the
error case.
Prevent that.
References 3
https://git.kernel.org/stable/c/4e3ca5f82346cc23c0a71f1ceb006115ff6b0745
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9aa3e33f0c7f2679ac599a09e3102c8f716a6321
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c601fd5414315fc515f746b499110e46272e7243
416baaa9-dc9f-4396-8d5f-8c081fb06d67