CVE-2026-43168: Linux kernel · ocfs2: fix reflink preserve cleanup issue
Source GCVE Database
Not known to be exploited.
Data as of 27 Oct 2026, 00:07 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Exploitation evidence
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
Description
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix reflink preserve cleanup issue commit c06c303832ec ("ocfs2: fix xattr array entry __counted_by error") doesn't handle all cases and the cleanup job for preserved xattr entries still has bug: - the 'last' pointer should be shifted by one unit after cleanup an array entry. - current code logic doesn't cleanup the first entry when xh_count is 1. Note, commit c06c303832ec is also a bug fix for 0fe9b66c65f3.
References
- nvd.nist.gov/vuln/detail/CVE-2026-43168 (opens in a new tab)
- git.kernel.org/stable/c/02acc9f72365e50eb45a56b7dacb9114ca3b503c (opens in a new tab)
- git.kernel.org/stable/c/2f4daccd9d9b8b2952df7878df8c2e8ba6439398 (opens in a new tab)
- git.kernel.org/stable/c/3bdc3766aafb052aef4baadef455a84c1c0a059d (opens in a new tab)
- git.kernel.org/stable/c/5138c936c2c82c9be8883921854bc6f7e1177d8c (opens in a new tab)
- git.kernel.org/stable/c/8ff329353134280b203cb2bce95311cb8f7cbd8a (opens in a new tab)
- git.kernel.org/stable/c/b2952dbeac2c3c527cb0519d5ffaeb95b062466a (opens in a new tab)
- git.kernel.org/stable/c/bb273b68c1719c2925e05557f7e7099edb066680 (opens in a new tab)
- git.kernel.org/stable/c/c44d86ca949cb1e5566ad14510cc26fa1a17e2d8 (opens in a new tab)