CVE-2026-89855

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.

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