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CVE-2026-89855

Unknown

Last modified

CVE-2026-89855 is a vulnerability of currently unknown severity. 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..

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 Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 8c2cf7d4e387d003259488522523807f25576427, < f1fc052f2a5890ea6dba80d50254dd6258b13386; >= 8c2cf7d4e387d003259488522523807f25576427, < 31bf2714abbb0aa5a8a03d15038f8920e1c74b21; >= 8c2cf7d4e387d003259488522523807f25576427, < ae979c549cba684e67b6c047140f3a8d2439b298; >= 8c2cf7d4e387d003259488522523807f25576427, < 9cef42a073a0bdeee7fb1b47221cda222d330d2a; >= 8c2cf7d4e387d003259488522523807f25576427, < 75460967619eda720c9a03767729157ffd171d8c; >= 8c2cf7d4e387d003259488522523807f25576427, < 8d116137119371349fb09685fe05413d8fc92efe; >= 8c2cf7d4e387d003259488522523807f25576427, < 33735490789e5417851752974c0b1d23125559cd; >= 8c2cf7d4e387d003259488522523807f25576427, < f606ed93de0c4f1e7e3618779e9fad731455314a
LinuxLinux3.12

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-89855?
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.
How severe is CVE-2026-89855?
Severity scoring for CVE-2026-89855 is pending analysis.
How do I fix CVE-2026-89855?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST