CVE-2026-45861
Description
AI Translation Available
In the Linux kernel, the following vulnerability has been resolved:
gfs2: Fix slab-use-after-free in qd_put
Commit a475c5dd16e5 ('gfs2: Free quota data objects synchronously')
started freeing quota data objects during filesystem shutdown instead of
putting them back onto the LRU list, but it failed to remove these
objects from the LRU list, causing LRU list corruption. This caused
use-after-free when the shrinker (gfs2_qd_shrink_scan) tried to access
already-freed objects on the LRU list.
Fix this by removing qd objects from the LRU list before freeing them in
qd_put().
Initial fix from Deepanshu Kartikey <[email protected]>.
https://git.kernel.org/stable/c/1d47922b98046b8070a77347fb883a6523792803
https://git.kernel.org/stable/c/22150a7d401d9e9169b9b68e05bed95f7f49bf69
https://git.kernel.org/stable/c/80fff26d7a0c3926b511661c27eecc811a420eef
https://git.kernel.org/stable/c/ca7c67bdd293089b3483f18886d6b2d0037d2ad9