cifs: Fix missing credit release on failure in cifs_issue_read() (CVE-2026-72356) | HOL Guard CVE

High · CVSS 7.5CVE-2026-72356

cifs: Fix missing credit release on failure in cifs_issue_read()

Answer in brief

CVE-2026-72356 records a High severity (CVSS 7.5) vulnerability in cifs: Fix missing credit release on failure in cifs_issue_read(). 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 17, 2026Source checked Sep 29, 2026First seen by HOL Aug 15, 2026Material review Aug 17, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.5
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 7.5. 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	>=69c3c023af25edb5433a2db824d3e7cc328f0183 <b9ee1f0347bf56d019ca28ddff090234bb45b05c \|\| >=69c3c023af25edb5433a2db824d3e7cc328f0183 <86652704a7fd41a5a8459027e08640bbd1952826 \|\| >=69c3c023af25edb5433a2db824d3e7cc328f0183 <3a303f985c6bec8787c2ad4a16b39c14c5bcd765 \|\| >=69c3c023af25edb5433a2db824d3e7cc328f0183 <c16b8c4cfb4fe2244cc33e469a93c1ab8684146b	b9ee1f0347bf56d019ca28ddff090234bb45b05c, 86652704a7fd41a5a8459027e08640bbd1952826, 3a303f985c6bec8787c2ad4a16b39c14c5bcd765, c16b8c4cfb4fe2244cc33e469a93c1ab8684146b
Linux/Linuxgeneric	6.10	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to b9ee1f0347bf56d019ca28ddff090234bb45b05c 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 17, 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: cifs: Fix missing credit release on failure in cifs_issue_read() Fix missing release of credits in the failure path in cifs_issue_read() lest retrying the subreq just overwrites the credits value.

Quoted source text, attributed separately from HOL analysis.