drm/msm/dp: Free resources after unregistering them
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.2%
exploitation probability
0.2%top 95% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
drm/msm/dp: Free resources after unregistering them
The DP component's unbind operation walks through the submodules to
unregister and clean things up. But if the unbind happens because the DP
controller itself is being removed, all the memory for those submodules
has just been freed.
Change the order of these operations to avoid the many use-after-free
that otherwise happens in this code path.
Patchwork: https://patchwork.freedesktop.org/patch/542166/
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/3c3f3d35f5e05c468b048eb42a4f8c62c6655692https://git.kernel.org/stable/c/4e9f1a2367aea7d61f6781213e25313cd983b0d7https://git.kernel.org/stable/c/5c3278db06e332fdc14f3f297499fb88ded264d2https://git.kernel.org/stable/c/c67a55f7cc8d767d624235bf1bcd0947e56abe0fhttps://git.kernel.org/stable/c/ca47d0dc00968358c136a1847cfed550cedfd1b5https://git.kernel.org/stable/c/fa0048a4b1fa7a50c8b0e514f5b428abdf69a6f8