CVE-2024-42314: Linux kernel · Use After Free
Source GCVE Database
Not known to be exploited · CVSS 7.8 High.
Data as of 29 Oct 2026, 22:52 UTC
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 17 Aug 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 29 Oct 2026.
Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix extent map use-after-free when adding pages to compressed bio At add_ra_bio_pages() we are accessing the extent map to calculate 'add_size' after we dropped our reference on the extent map, resulting in a use-after-free. Fix this by computing 'add_size' before dropping our extent map reference.
References
- nvd.nist.gov/vuln/detail/CVE-2024-42314 (opens in a new tab)
- git.kernel.org/stable/c/8e7860543a94784d744c7ce34b78a2e11beefa5c (opens in a new tab)
- git.kernel.org/stable/c/b7859ff398b6b656e1689daa860eb34837b4bb89 (opens in a new tab)
- git.kernel.org/stable/c/c1cc3326e27b0bd7a2806b40bc48e49afaf951e7 (opens in a new tab)
- git.kernel.org/stable/c/c205565e0f2f439f278a4a94ee97b67ef7b56ae8 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/01/msg00001.html (opens in a new tab)