CVE-2026-45861
HIGH EPSS 5.5%
Published May 27, 20261mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
Published May 27, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago
Description
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 <kartikey406@gmail.com>.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
5.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
References 4
- git.kernel.org https://git.kernel.org/stable/c/1d47922b98046b8070a77347fb883a6523792803
- git.kernel.org https://git.kernel.org/stable/c/22150a7d401d9e9169b9b68e05bed95f7f49bf69
- git.kernel.org https://git.kernel.org/stable/c/80fff26d7a0c3926b511661c27eecc811a420eef
- git.kernel.org https://git.kernel.org/stable/c/ca7c67bdd293089b3483f18886d6b2d0037d2ad9
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.