scsi: ufs: debugfs: Reserve space for a string terminator (CVE-2026-92477) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-92477

scsi: ufs: debugfs: Reserve space for a string terminator

Answer in brief

CVE-2026-92477 records a Unknown severity vulnerability in scsi: ufs: debugfs: Reserve space for a string terminator. 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 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 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	>=7340faae947400907e5e7581444712110d2811d5 <b43890843e834300f967c69e74c7c2eb22cb1664 \|\| >=7340faae947400907e5e7581444712110d2811d5 <587be18e0935632ebd367b0f89e37aa5762e400f \|\| >=7340faae947400907e5e7581444712110d2811d5 <d223989e1a1edad217b673486b093bd157fb6c9a \|\| >=7340faae947400907e5e7581444712110d2811d5 <cc92af8cc0e4dacd4375d34475141b0f1a70c09e \|\| >=7340faae947400907e5e7581444712110d2811d5 <2b3fb5693c25c21741f357a8c9d0e1f19b7e368f \|\| >=7340faae947400907e5e7581444712110d2811d5 <abd26e6b53c4169122d61fdd4cabe09bdd916aac	b43890843e834300f967c69e74c7c2eb22cb1664, 587be18e0935632ebd367b0f89e37aa5762e400f, d223989e1a1edad217b673486b093bd157fb6c9a, cc92af8cc0e4dacd4375d34475141b0f1a70c09e, 2b3fb5693c25c21741f357a8c9d0e1f19b7e368f, abd26e6b53c4169122d61fdd4cabe09bdd916aac
Linux/Linuxgeneric	5.16	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to b43890843e834300f967c69e74c7c2eb22cb1664 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: debugfs: Reserve space for a string terminator ufs_saved_err_write() copies user input into a zero-initialized stack buffer and passes it to kstrtoint(). A write that fills the entire buffer overwrites its only terminator. Reject an input whose length leaves no room for the trailing NUL.

Quoted source text, attributed separately from HOL analysis.