xfs: restore nofs context unconditionally in xfs_trans_roll (CVE-2026-80804) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-80804

xfs: restore nofs context unconditionally in xfs_trans_roll

Answer in brief

CVE-2026-80804 records a Unknown severity vulnerability in xfs: restore nofs context unconditionally in xfs_trans_roll. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 4, 2026Updated Sep 4, 2026Source checked Sep 4, 2026First seen by HOL Sep 4, 2026Material review Sep 4, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=a1ca658d649a4d8972e2e21ac2625b633217e327 <b09198cf90ccf296970b774beea1c1ddb260f94c \|\| >=a1ca658d649a4d8972e2e21ac2625b633217e327 <4d00a39c676274f4071b467e630565ac1e3ae0f2 \|\| >=a1ca658d649a4d8972e2e21ac2625b633217e327 <0241ea5fb0fe86d2a673163b2f5815111aadc7f7	b09198cf90ccf296970b774beea1c1ddb260f94c, 4d00a39c676274f4071b467e630565ac1e3ae0f2, 0241ea5fb0fe86d2a673163b2f5815111aadc7f7
Linux/Linuxgeneric	7.0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to b09198cf90ccf296970b774beea1c1ddb260f94c if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 4, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: xfs: restore nofs context unconditionally in xfs_trans_roll When __xfs_trans_commit() fails in xfs_trans_roll(), the NOFS context is cleared but only restored in the success path. This leaves the error path without nofs protection, causing a circular lock dependency between xfs_nondir_ilock_class and fs_reclaim: CPU0 CPU1 ---- ---- lock(&xfs_nondir_ilock_class); lock(fs_reclaim); lock(&xfs_nondir_ilock_class); lock(fs_reclaim); Fix this by moving xfs_trans_set_context() before the error check so that nofs context is always restored on the new transaction.

Quoted source text, attributed separately from HOL analysis.