CVE-2026-80529: Linux kernel · xfs: don't swallow dquot recovery verification errors
Source GCVE Database
Not known to be exploited · fixed in e506e127fcb4e2bad1045805f1740b395eea9618 : patch Linux kernel soon.
Data as of 6 Nov 2026, 19:33 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in e506e127fcb4e2bad1045805f1740b395eea9618, e2b4a856085e9bd939bde2dee0d08b1d41babde9, a233b3362a3c7bf23f5143b4ef4b17ec337fcb4d +5
Exploitation evidence
Disclosed: evidence found.
CVE published 26 Aug 2026
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 6 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix for this issue has been implemented in the Linux kernel. Users should apply the official kernel updates that address this flaw. No other mitigation steps are indicated.
Description
A vulnerability in the Linux kernel's XFS filesystem was fixed where errors during disk quota (dquot) recovery verification were ignored. Specifically, the function xlog_recover_dquot_commit_pass2() detects corruption but the error is discarded, allowing corrupted quota data to be written back to disk during log recovery.
References
- nvd.nist.gov/vuln/detail/CVE-2026-80529 (opens in a new tab)
- git.kernel.org/stable/c/36a31b12540c0a0a3b77a01fda86de646f2961fb (opens in a new tab)
- git.kernel.org/stable/c/38a4dbe588bd028a07a77dc5cee62ee3ce21e87d (opens in a new tab)
- git.kernel.org/stable/c/5b756fbb60b5d26063f46a11a3c7daa7eb616d79 (opens in a new tab)
- git.kernel.org/stable/c/a233b3362a3c7bf23f5143b4ef4b17ec337fcb4d (opens in a new tab)
- git.kernel.org/stable/c/e2b4a856085e9bd939bde2dee0d08b1d41babde9 (opens in a new tab)
- git.kernel.org/stable/c/e506e127fcb4e2bad1045805f1740b395eea9618 (opens in a new tab)