afs: Fix missing NULL pointer check in afs_break_some_callbacks() (CVE-2026-72373) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-72373

afs: Fix missing NULL pointer check in afs_break_some_callbacks()

Answer in brief

CVE-2026-72373 records a Unknown severity vulnerability in afs: Fix missing NULL pointer check in afs_break_some_callbacks(). 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 Aug 15, 2026Updated Aug 15, 2026Source checked Aug 15, 2026First seen by HOL Aug 15, 2026Material review Aug 15, 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	>=8230fd8217b7ea76f838ae88e4a5a8e54f37099f <a99a617701186dc68c7b330d35fc2253f48e2ab2 \|\| >=8230fd8217b7ea76f838ae88e4a5a8e54f37099f <5492799ec5d27be3bd454dcaf046bc7054f637ae \|\| >=8230fd8217b7ea76f838ae88e4a5a8e54f37099f <e3e59ff22a0de01ed0cf3a3e25558811abc3b70a \|\| >=8230fd8217b7ea76f838ae88e4a5a8e54f37099f <794a01110390c1b76f59ece773fb0fbfd89c6f5c	a99a617701186dc68c7b330d35fc2253f48e2ab2, 5492799ec5d27be3bd454dcaf046bc7054f637ae, e3e59ff22a0de01ed0cf3a3e25558811abc3b70a, 794a01110390c1b76f59ece773fb0fbfd89c6f5c
Linux/Linuxgeneric	5.8	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to a99a617701186dc68c7b330d35fc2253f48e2ab2 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 15, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: afs: Fix missing NULL pointer check in afs_break_some_callbacks() Fix afs_break_some_callbacks() to check to see if afs_lookup_volume_rcu() returned NULL (e.g. the specified volume is unknown).

Quoted source text, attributed separately from HOL analysis.

Back to active CVEs

Unknown severity · Source severity not reportedCVE-2026-72373

afs: Fix missing NULL pointer check in afs_break_some_callbacks()

Answer in brief

Analysis pending evidence review

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

Published Aug 15, 2026Updated Aug 15, 2026Source checked Aug 15, 2026First seen by HOL Aug 15, 2026Material review Aug 15, 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	>=8230fd8217b7ea76f838ae88e4a5a8e54f37099f <a99a617701186dc68c7b330d35fc2253f48e2ab2 \|\| >=8230fd8217b7ea76f838ae88e4a5a8e54f37099f <5492799ec5d27be3bd454dcaf046bc7054f637ae \|\| >=8230fd8217b7ea76f838ae88e4a5a8e54f37099f <e3e59ff22a0de01ed0cf3a3e25558811abc3b70a \|\| >=8230fd8217b7ea76f838ae88e4a5a8e54f37099f <794a01110390c1b76f59ece773fb0fbfd89c6f5c	a99a617701186dc68c7b330d35fc2253f48e2ab2, 5492799ec5d27be3bd454dcaf046bc7054f637ae, e3e59ff22a0de01ed0cf3a3e25558811abc3b70a, 794a01110390c1b76f59ece773fb0fbfd89c6f5c
Linux/Linuxgeneric	5.8	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to a99a617701186dc68c7b330d35fc2253f48e2ab2 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 15, 2026

Sources and claim methodology

Upstream source description

Quoted source text, attributed separately from HOL analysis.

afs: Fix missing NULL pointer check in afs_break_some_callbacks()

Key facts

Why this deserves its current priority

Affected scope and exposure questions

Recommended response

Evidence timeline and material changes

Sources and claim methodology

Related CVEs

afs: Fix missing NULL pointer check in afs_break_some_callbacks()

Key facts

Why this deserves its current priority

Affected scope and exposure questions

Recommended response

Evidence timeline and material changes

Sources and claim methodology

Related CVEs