CVE-2026-89855

Summary

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

VendorProductVersion RangeStatus
LinuxLinux8c2cf7d4e387d003259488522523807f25576427 < f1fc052f2a5890ea6dba80d50254dd6258b13386affected
LinuxLinux8c2cf7d4e387d003259488522523807f25576427 < 31bf2714abbb0aa5a8a03d15038f8920e1c74b21affected
LinuxLinux8c2cf7d4e387d003259488522523807f25576427 < ae979c549cba684e67b6c047140f3a8d2439b298affected
LinuxLinux8c2cf7d4e387d003259488522523807f25576427 < 9cef42a073a0bdeee7fb1b47221cda222d330d2aaffected
LinuxLinux8c2cf7d4e387d003259488522523807f25576427 < 75460967619eda720c9a03767729157ffd171d8caffected
LinuxLinux8c2cf7d4e387d003259488522523807f25576427 < 8d116137119371349fb09685fe05413d8fc92efeaffected
LinuxLinux8c2cf7d4e387d003259488522523807f25576427 < 33735490789e5417851752974c0b1d23125559cdaffected
LinuxLinux8c2cf7d4e387d003259488522523807f25576427 < f606ed93de0c4f1e7e3618779e9fad731455314aaffected
LinuxLinux3.12affected
LinuxLinux0 < 3.12unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.51 <= 6.18.*unaffected
LinuxLinux7.2.5 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References