Bug 2535128 (CVE-2026-89855) - CVE-2026-89855 kernel: scsi: qla2xxx: Serialize flash version read in reset handler
Summary: CVE-2026-89855 kernel: scsi: qla2xxx: Serialize flash version read in reset h...
Keywords:
Status: NEW
Alias: CVE-2026-89855
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-16 10:53 UTC by OSIDB Bzimport
Modified: 2026-10-20 13:09 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-09-16 10:53:51 UTC
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.


Note You need to log in before you can comment on or make changes to this bug.