CVE-2026-45861
Published: May 27, 2026
Modified: May 30, 2026
CVSS v3.1
7.8
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 <[email protected]>.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected a475c5dd16e57c570113eccba51955b5df8bb052 - < ca7c67bdd293089b3483f18886d6b2d0037d2ad9affected a475c5dd16e57c570113eccba51955b5df8bb052 - < 1d47922b98046b8070a77347fb883a6523792803affected a475c5dd16e57c570113eccba51955b5df8bb052 - < 80fff26d7a0c3926b511661c27eecc811a420eefaffected a475c5dd16e57c570113eccba51955b5df8bb052 - < 22150a7d401d9e9169b9b68e05bed95f7f49bf69 |
Linux | Linux | affected 6.6unaffected 0 - < 6.6unaffected 6.12.75 - <= 6.12.*unaffected 6.18.14 - <= 6.18.*unaffected 6.19.4 - <= 6.19.*+1 more versions |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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