CVE-2026-92477

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

Published Sep 17, 2026 CVSS n/a EPSS < 1% KEV · Not listed

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

unaffected

Version	Status	Constraints
`7340faae947400907e5e7581444712110d2811d5`	affected	< b43890843e834300f967c69e74c7c2eb22cb1664
`7340faae947400907e5e7581444712110d2811d5`	affected	< 587be18e0935632ebd367b0f89e37aa5762e400f
`7340faae947400907e5e7581444712110d2811d5`	affected	< d223989e1a1edad217b673486b093bd157fb6c9a
`7340faae947400907e5e7581444712110d2811d5`	affected	< cc92af8cc0e4dacd4375d34475141b0f1a70c09e
`7340faae947400907e5e7581444712110d2811d5`	affected	< 2b3fb5693c25c21741f357a8c9d0e1f19b7e368f
`7340faae947400907e5e7581444712110d2811d5`	affected	< abd26e6b53c4169122d61fdd4cabe09bdd916aac

Linux

affected

Version	Status	Constraints
`5.16`	affected	—
`0`	unaffected	< 5.16
`6.1.188`	unaffected	≤ 6.1.*
`6.6.157`	unaffected	≤ 6.6.*
`6.12.110`	unaffected	≤ 6.12.*
`6.18.52`	unaffected	≤ 6.18.*
`7.2.6`	unaffected	≤ 7.2.*
`7.3`	unaffected	≤ *

No data.

Vendor Product Versions

Linux

Linux Kernel

Version	Status	Scheme	Platform
`[7340faae947400907e5e7581444712110d2811d5,b43890843e834300f967c69e74c7c2eb22cb1664)`	affected	code_commit	—
`[7340faae947400907e5e7581444712110d2811d5,587be18e0935632ebd367b0f89e37aa5762e400f)`	affected	code_commit	—
`[7340faae947400907e5e7581444712110d2811d5,d223989e1a1edad217b673486b093bd157fb6c9a)`	affected	code_commit	—
`[7340faae947400907e5e7581444712110d2811d5,cc92af8cc0e4dacd4375d34475141b0f1a70c09e)`	affected	code_commit	—
`[7340faae947400907e5e7581444712110d2811d5,2b3fb5693c25c21741f357a8c9d0e1f19b7e368f)`	affected	code_commit	—
`[7340faae947400907e5e7581444712110d2811d5,abd26e6b53c4169122d61fdd4cabe09bdd916aac)`	affected	code_commit	—

Linux

Linux Kernel

Version	Status	Scheme	Platform
`5.16`	affected	generic	—
`[0,5.16)`	unaffected	generic	—
`[6.1.188,7.0.0)`	unaffected	semver	—
`[6.6.157,7.0.0)`	unaffected	semver	—
`[6.12.110,7.0.0)`	unaffected	semver	—
`[6.18.52,7.0.0)`	unaffected	semver	—
`[7.2.6,8.0.0)`	unaffected	semver	—
`[7.3-rc1,*]`	unaffected	generic	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
Debian DLA	DLA-4817-1	linux-6.12 security update
Debian DLA	DLA-4841-1	linux security update
Debian DSA	DSA-6528-1	linux security update
Ubuntu USN	USN-9019-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9020-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9022-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9023-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9024-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9025-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9026-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9039-1	Linux kernel (Azure CVM) vulnerabilities
Ubuntu USN	USN-9040-1	Linux kernel (Low Latency NVIDIA) vulnerabilities
Ubuntu USN	USN-9066-1	Linux kernel (HWE) vulnerabilities
Ubuntu USN	USN-9091-1	Linux kernel (NVIDIA Tegra) vulnerabilities

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.173% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://git.kernel.org/stable/c/2b3fb5693c25c21741f357a8c9d0e1f19b7e368f
https://git.kernel.org/stable/c/587be18e0935632ebd367b0f89e37aa5762e400f
https://git.kernel.org/stable/c/abd26e6b53c4169122d61fdd4cabe09bdd916aac
https://git.kernel.org/stable/c/b43890843e834300f967c69e74c7c2eb22cb1664
https://git.kernel.org/stable/c/cc92af8cc0e4dacd4375d34475141b0f1a70c09e
https://git.kernel.org/stable/c/d223989e1a1edad217b673486b093bd157fb6c9a

History

Sep 19, 2026 1:30 PM Weaknesses updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-119

Sep 17, 2026 4:30 PM Description updated. Title updated. First appearance in the feed. Affected versions updated. Affected vendors updated. Added references View changes

Type	Values Removed	Values Added
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.
Title		scsi: ufs: debugfs: Reserve space for a string terminator
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/2b3fb5693c25c21741f357a8c9d0e1f19b7e368f https://git.kernel.org/stable/c/587be18e0935632ebd367b0f89e37aa5762e400f https://git.kernel.org/stable/c/abd26e6b53c4169122d61fdd4cabe09bdd916aac https://git.kernel.org/stable/c/b43890843e834300f967c69e74c7c2eb22cb1664 https://git.kernel.org/stable/c/cc92af8cc0e4dacd4375d34475141b0f1a70c09e https://git.kernel.org/stable/c/d223989e1a1edad217b673486b093bd157fb6c9a