drm/amd/display: detect_link_and_local_sink: DP alt mode timeout path leaks prev_sink reference
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: detect_link_and_local_sink: DP alt mode timeout path leaks prev_sink reference
prev_sink is unconditionally retained via dc_sink_retain at function
entry, but the DP alt mode timeout path inside SIGNAL_TYPE_DISPLAY_PORT
returns false without releasing prev_sink. All other return paths in the
function correctly call dc_sink_release(prev_sink), making this the only
missing cleanup.
(cherry picked from commit 45510cf662dcf46b5d8926d454f338809f107b9d)
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/4ee77643e6194f2deb62fe62f04396f9825e27d8https://git.kernel.org/stable/c/58ea24dd96848626039296e9e8510270ec8dc4bfhttps://git.kernel.org/stable/c/a59e493567d18ef3858be9368acd132a01ebfa09https://git.kernel.org/stable/c/a6e14b976be48eebd8769cb5b883a6af7fc5ade1https://git.kernel.org/stable/c/f9922828a4ebd26286fbe0286cc61695e7d9b07b