CVE-2026-97546: xfs: don't spin forever on zero-length dirents when salvaging them
Published Sep 25, 2026
·Updated
In the Linux kernel, the following vulnerability has been resolved:
xfs: don't spin forever on zero-length dirents when salvaging them
LOLLM noticed that xrepdirrecoverdata can spin forever if it encounters an unused dirent that claims to have length zero. Fix that, and prevent the same thing from happening with a zero-length entry.
Affected Software
1 affected component
Linux Linux kernel
Event History
Sep 25, 2026
CVE Published
via MITRE·10:21 AM
Data Sourced
via MITRE·10:21 AM
Description
Frequently Asked Questions
1
What condition triggers the infinite loop?
The loop can occur when xrep_dir_recover_data encounters an unused directory entry that reports a length of zero. The fix also prevents the same behavior for a zero-length entry.
2
Which component is involved?
The affected code is XFS directory recovery or salvage handling in the Linux kernel, specifically xrep_dir_recover_data.