drm: bridge: cdns-mhdp8546: Fix possible null pointer dereference
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.5epss 0.3%
exploitation probability
0.3%top 85% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
drm: bridge: cdns-mhdp8546: Fix possible null pointer dereference
In cdns_mhdp_atomic_enable(), the return value of drm_mode_duplicate() is
assigned to mhdp_state->current_mode, and there is a dereference of it in
drm_mode_set_name(), which will lead to a NULL pointer dereference on
failure of drm_mode_duplicate().
Fix this bug add a check of mhdp_state->current_mode.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/32fb2ef124c3301656ac6c789a2ef35ef69a66dahttps://git.kernel.org/stable/c/47889711da20be9b43e1e136e5cb68df37cbcc79https://git.kernel.org/stable/c/85d1a27402f81f2e04b0e67d20f749c2a14edbb3https://git.kernel.org/stable/c/89788cd9824c28ffcdea40232c458233353d1896https://git.kernel.org/stable/c/935a92a1c400285545198ca2800a4c6c519c650ahttps://git.kernel.org/stable/c/ca53b7efd4ba6ae92fd2b3085cb099c745e96965https://git.kernel.org/stable/c/dcf53e6103b26e7458be71491d0641f49fbd5840