CVE-2022-49645 Information

Description

In the Linux kernel the following vulnerability has been resolved:

drm/panfrost: Fix shrinker list corruption by madvise IOCTL

Calling madvise IOCTL twice on BO causes memory shrinker list corruption and crashes kernel because BO is already on the list and it’s added to the list again while BO should be removed from the list before it’s re-added. Fix it.

Reference

https://git.kernel.org/stable/c/0581613df7f9a4c5fac096ce1d5fb15b7b994240 https://git.kernel.org/stable/c/1807d8867402a58b831a7fc16832747ff559a0d1 https://git.kernel.org/stable/c/393594aad55179eb761af41533d8d1d6eb4543b0 https://git.kernel.org/stable/c/9fc33eaaa979d112d10fea729edcd2a2e21aa912 https://git.kernel.org/stable/c/f036392edd9c49090781d8cca26ad6557a63bae4