CVE-2026-89855 PUBLISHED

scsi: qla2xxx: Serialize flash version read in reset handler

Assigner: Linux
Reserved: 11.09.2026 Published: 16.09.2026 Updated: 16.09.2026

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 8c2cf7d4e387d003259488522523807f25576427 to f1fc052f2a5890ea6dba80d50254dd6258b13386 (excl.)
  • affected from 8c2cf7d4e387d003259488522523807f25576427 to 31bf2714abbb0aa5a8a03d15038f8920e1c74b21 (excl.)
  • affected from 8c2cf7d4e387d003259488522523807f25576427 to ae979c549cba684e67b6c047140f3a8d2439b298 (excl.)
  • affected from 8c2cf7d4e387d003259488522523807f25576427 to 9cef42a073a0bdeee7fb1b47221cda222d330d2a (excl.)
  • affected from 8c2cf7d4e387d003259488522523807f25576427 to 75460967619eda720c9a03767729157ffd171d8c (excl.)
  • affected from 8c2cf7d4e387d003259488522523807f25576427 to 8d116137119371349fb09685fe05413d8fc92efe (excl.)
  • affected from 8c2cf7d4e387d003259488522523807f25576427 to 33735490789e5417851752974c0b1d23125559cd (excl.)
  • affected from 8c2cf7d4e387d003259488522523807f25576427 to f606ed93de0c4f1e7e3618779e9fad731455314a (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 3.12 is affected
  • unaffected from 0 to 3.12 (excl.)
  • unaffected from 5.10.270 to 5.10.* (incl.)
  • unaffected from 5.15.221 to 5.15.* (incl.)
  • unaffected from 6.1.188 to 6.1.* (incl.)
  • unaffected from 6.6.157 to 6.6.* (incl.)
  • unaffected from 6.12.110 to 6.12.* (incl.)
  • unaffected from 6.18.51 to 6.18.* (incl.)
  • unaffected from 7.2.5 to 7.2.* (incl.)
  • unaffected from 7.3-rc1 to * (incl.)

References