CVE-2026-80820
xfs: don't livelock in scrub on a circular unlinked list
No known exploitation. EPSS puts it in the 6th percentile. Fixed versions are out.
No public exploit knownFix1 product4 fixed builds listed below
e.g. OID 1.3.6.1.4.1.25623.1.1.10.2026.0506
What to do
Find your product and version, then upgrade to the build on the right.
- LinuxAffected: ≥ a12890aebb895951720ff884eab1c99a30645b29, < 599453f83458b57995290a1d31200c263e2c2691Upgrade to: 599453f83458b57995290a1d31200c263e2c2691Affected: ≥ a12890aebb895951720ff884eab1c99a30645b29, < 159d162fe80bd56573cafde5801bd5a90a3dd1acUpgrade to: 159d162fe80bd56573cafde5801bd5a90a3dd1acAffected: ≥ a12890aebb895951720ff884eab1c99a30645b29, < 56407a61a8bb85b884de802d39635abdb0ea7408Upgrade to: 56407a61a8bb85b884de802d39635abdb0ea7408Affected: ≥ a12890aebb895951720ff884eab1c99a30645b29, < 527eaaefddb6ec5c83a06c9a1559960dd6361753Upgrade to: 527eaaefddb6ec5c83a06c9a1559960dd6361753Stated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
In the Linux kernel, the following vulnerability has been resolved: xfs: don't livelock in scrub on a circular unlinked list LOLLM points out that online fsck can livelock if an unlinked inode list contains a loop. Use a bitmap to detect cycles.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.2% chance of exploitation activity in the next 30 days, which ranks it in the 6th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
3 events over 48 days, from the signal feeds we watch.
- OpenVAS check added
- Publishedrecord updated
Affected products
Sources
References in the record
- git.kernel.org/stable/c/159d162fe80bd56573cafde5801bd5a90a3dd1ac
- git.kernel.org/stable/c/527eaaefddb6ec5c83a06c9a1559960dd6361753
- git.kernel.org/stable/c/56407a61a8bb85b884de802d39635abdb0ea7408
And 1 more reference. See all after sign-in
In the news
Watch the software you run.
My Stack ranks new CVEs for your products by real-world exploitation, so the next serious one reaches you without reading every advisory.
We'll flag the next CVE, public exploit or patch for Linux, not every advisory.
A free account adds
- The full version matrix and every affected product
- Exploit links, proofs of concept and Metasploit modules
- Email alerts for the products you watch
- The same data over REST API, MCP and CLI