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VulnerabilityPublished Updated

CVE-2024-46786: Linux kernel · fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 10 Nov 2026, 14:50 UTC

Severity
High

Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Sep 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

Community reviews

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