CVE-2026-45861gfs2: Fix slab-use-after-free in qd_put
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from a475c5dd16e57c570113eccba51955b5df8bb052 before ca7c67bdd293089b3483f18886d6b2d0037d2ad9; from a475c5dd16e57c570113eccba51955b5df8bb052 before 1d47922b98046b8070a77347fb883a6523792803; from a475c5dd16e57c570113eccba51955b5df8bb052 before 80fff26d7a0c3926b511661c27eecc811a420eef; from a475c5dd16e57c570113eccba51955b5df8bb052 before 22150a7d401d9e9169b9b68e05bed95f7f49bf69 | CNA record |
linux linux_kernel linux:linux_kernel | from 6.6 before 6.12.75; from 6.13 before 6.18.14; from 6.19 before 6.19.4 | NVD |
References
- https://git.kernel.org/stable/c/ca7c67bdd293089b3483f18886d6b2d0037d2ad9patch
- https://git.kernel.org/stable/c/1d47922b98046b8070a77347fb883a6523792803patch
- https://git.kernel.org/stable/c/80fff26d7a0c3926b511661c27eecc811a420eefpatch
- https://git.kernel.org/stable/c/22150a7d401d9e9169b9b68e05bed95f7f49bf69patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.