xfs: initialise error in xfs_defer_finish_one()

Answer in brief

CVE-2026-97552 records a Unknown severity vulnerability in xfs: initialise error in xfs_defer_finish_one(). 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 25, 2026Updated Sep 25, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 25, 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	>=3f3cec031099c37513727efc978a12b6346e326d <30748a24b9f04f9a83599ba907cc8fbff0729f3c \|\| >=3f3cec031099c37513727efc978a12b6346e326d <ba949a14446b7346e92e676ee3fe2bb79d9ce450 \|\| >=3f3cec031099c37513727efc978a12b6346e326d <6b507c239884f7d4bf8339f6e9eb8bfcb540afde \|\| >=3f3cec031099c37513727efc978a12b6346e326d <6176d21d7bd609632c5b7e87a3adb9be29ec1e72	30748a24b9f04f9a83599ba907cc8fbff0729f3c, ba949a14446b7346e92e676ee3fe2bb79d9ce450, 6b507c239884f7d4bf8339f6e9eb8bfcb540afde, 6176d21d7bd609632c5b7e87a3adb9be29ec1e72
Linux/Linuxgeneric	6.8	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 30748a24b9f04f9a83599ba907cc8fbff0729f3c if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: xfs: initialise error in xfs_defer_finish_one() xfs_defer_finish_one() declares error without an initialiser and only assigns it inside the loop over dfp->dfp_work. When that list is empty the loop body never runs, control falls through to the "Done with the dfp, free it" path, and the function returns an indeterminate value. An item-less pending item reaches this through xfs_defer_add_barrier(), which xfs_reap_ag_blocks() uses on any CONFIG_XFS_ONLINE_REPAIR kernel. xfs_defer_finish_noroll() treats any non-EAGAIN return as fatal, so a non-zero stack value turns a successful barrier into a SHUTDOWN_CORRUPT_INCORE in the middle of a repair. Zero is the correct result: reaching the free path means the item loop drained without a non-zero error.

Quoted source text, attributed separately from HOL analysis.