CVE-2026-89855

scsi: qla2xxx: Serialize flash version read in reset handler

Published Sep 16, 2026 CVSS n/a EPSS < 1% KEV · Not listed

Description

In the Linux kernel, the following vulnerability has been resolved:

scsi: qla2xxx: Serialize flash version read in reset handler

The "update cache versions without reset" sysfs reset operation (0x20261)
calls get_flash_version(), which reads hardware flash registers, without
holding ha->optrom_mutex. The VPD update path serializes the same call
under optrom_mutex, so this reset path can interleave its flash register
accesses with a concurrent VPD or optrom flash operation and corrupt the
reads.

Hold ha->optrom_mutex across the get_flash_version() call to match the
VPD update path.

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
`8c2cf7d4e387d003259488522523807f25576427`	affected	< f1fc052f2a5890ea6dba80d50254dd6258b13386
`8c2cf7d4e387d003259488522523807f25576427`	affected	< 31bf2714abbb0aa5a8a03d15038f8920e1c74b21
`8c2cf7d4e387d003259488522523807f25576427`	affected	< ae979c549cba684e67b6c047140f3a8d2439b298
`8c2cf7d4e387d003259488522523807f25576427`	affected	< 9cef42a073a0bdeee7fb1b47221cda222d330d2a
`8c2cf7d4e387d003259488522523807f25576427`	affected	< 75460967619eda720c9a03767729157ffd171d8c
`8c2cf7d4e387d003259488522523807f25576427`	affected	< 8d116137119371349fb09685fe05413d8fc92efe
`8c2cf7d4e387d003259488522523807f25576427`	affected	< 33735490789e5417851752974c0b1d23125559cd
`8c2cf7d4e387d003259488522523807f25576427`	affected	< f606ed93de0c4f1e7e3618779e9fad731455314a

Linux

affected

Version	Status	Constraints
`3.12`	affected	—
`0`	unaffected	< 3.12
`5.10.270`	unaffected	≤ 5.10.*
`5.15.221`	unaffected	≤ 5.15.*
`6.1.188`	unaffected	≤ 6.1.*
`6.6.157`	unaffected	≤ 6.6.*
`6.12.110`	unaffected	≤ 6.12.*
`6.18.51`	unaffected	≤ 6.18.*
`7.2.5`	unaffected	≤ 7.2.*
`7.3`	unaffected	≤ *

No data.

Vendor Product Versions

Linux

Linux Kernel

Version	Status	Scheme	Platform
`[8c2cf7d4e387d003259488522523807f25576427,f1fc052f2a5890ea6dba80d50254dd6258b13386)`	affected	code_commit	—
`[8c2cf7d4e387d003259488522523807f25576427,31bf2714abbb0aa5a8a03d15038f8920e1c74b21)`	affected	code_commit	—
`[8c2cf7d4e387d003259488522523807f25576427,ae979c549cba684e67b6c047140f3a8d2439b298)`	affected	code_commit	—
`[8c2cf7d4e387d003259488522523807f25576427,9cef42a073a0bdeee7fb1b47221cda222d330d2a)`	affected	code_commit	—
`[8c2cf7d4e387d003259488522523807f25576427,75460967619eda720c9a03767729157ffd171d8c)`	affected	code_commit	—
`[8c2cf7d4e387d003259488522523807f25576427,8d116137119371349fb09685fe05413d8fc92efe)`	affected	code_commit	—
`[8c2cf7d4e387d003259488522523807f25576427,33735490789e5417851752974c0b1d23125559cd)`	affected	code_commit	—
`[8c2cf7d4e387d003259488522523807f25576427,f606ed93de0c4f1e7e3618779e9fad731455314a)`	affected	code_commit	—

Linux

Linux Kernel

Version	Status	Scheme	Platform
`3.12`	affected	generic	—
`[0,3.12)`	unaffected	generic	—
`[5.10.270,5.11.0)`	unaffected	semver	—
`[5.15.221,5.16.0)`	unaffected	semver	—
`[6.1.188,6.2.0)`	unaffected	semver	—
`[6.6.157,6.7.0)`	unaffected	semver	—
`[6.12.110,6.13.0)`	unaffected	semver	—
`[6.18.51,6.19.0)`	unaffected	semver	—
`[7.2.5,7.3.0)`	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-8961-1	Linux kernel vulnerabilities
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-9029-1	Linux kernel (Raspberry Pi) 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% (0.216% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://git.kernel.org/stable/c/31bf2714abbb0aa5a8a03d15038f8920e1c74b21
https://git.kernel.org/stable/c/33735490789e5417851752974c0b1d23125559cd
https://git.kernel.org/stable/c/75460967619eda720c9a03767729157ffd171d8c
https://git.kernel.org/stable/c/8d116137119371349fb09685fe05413d8fc92efe
https://git.kernel.org/stable/c/9cef42a073a0bdeee7fb1b47221cda222d330d2a
https://git.kernel.org/stable/c/ae979c549cba684e67b6c047140f3a8d2439b298
https://git.kernel.org/stable/c/f1fc052f2a5890ea6dba80d50254dd6258b13386
https://git.kernel.org/stable/c/f606ed93de0c4f1e7e3618779e9fad731455314a

History

Sep 18, 2026 9:30 AM Weaknesses updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-362

Sep 16, 2026 10:45 AM 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: qla2xxx: Serialize flash version read in reset handler The "update cache versions without reset" sysfs reset operation (0x20261) calls get_flash_version(), which reads hardware flash registers, without holding ha->optrom_mutex. The VPD update path serializes the same call under optrom_mutex, so this reset path can interleave its flash register accesses with a concurrent VPD or optrom flash operation and corrupt the reads. Hold ha->optrom_mutex across the get_flash_version() call to match the VPD update path.
Title		scsi: qla2xxx: Serialize flash version read in reset handler
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/31bf2714abbb0aa5a8a03d15038f8920e1c74b21 https://git.kernel.org/stable/c/33735490789e5417851752974c0b1d23125559cd https://git.kernel.org/stable/c/75460967619eda720c9a03767729157ffd171d8c https://git.kernel.org/stable/c/8d116137119371349fb09685fe05413d8fc92efe https://git.kernel.org/stable/c/9cef42a073a0bdeee7fb1b47221cda222d330d2a https://git.kernel.org/stable/c/ae979c549cba684e67b6c047140f3a8d2439b298 https://git.kernel.org/stable/c/f1fc052f2a5890ea6dba80d50254dd6258b13386 https://git.kernel.org/stable/c/f606ed93de0c4f1e7e3618779e9fad731455314a