CVE-2024-46786: Linux kernel · fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 10 Nov 2026, 14:50 UTC
Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 18 Sep 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
AI-suggested
A fix has been implemented by deleting the fscache_cookie_lru_timer when the fscache module is removed. Users should apply the official kernel updates that include this fix once available. Patch status is not explicitly confirmed in the input; check the vendor advisory for current remediation guidance.
Description
A use-after-free vulnerability exists in the Linux kernel's fscache module due to the fscache_cookie_lru_timer not being deleted when the module is removed. This can lead to a kernel crash (Oops) triggered by a timer callback accessing freed memory after the module is unloaded.
References
- git.kernel.org/stable/c/c1fc36d5470335546c45799d94d7bb2cbc09e8b7 (opens in a new tab)
- git.kernel.org/stable/c/e0d724932ad12e3528f4ce97fc0f6078d0cce4bc (opens in a new tab)
- git.kernel.org/stable/c/0a11262549ac2ac6fb98c7cd40a67136817e5a52 (opens in a new tab)
- git.kernel.org/stable/c/72a6e22c604c95ddb3b10b5d3bb85b6ff4dbc34f (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-019113.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-457936.html (opens in a new tab)