CVE-2026-89850

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

scsi: qla2xxx: Don't query firmware state while chip is down

qla2x00_fw_state_show() initializes rval to QLA_FUNCTION_FAILED and jumps

to the out: label when the chip is down or EEH is busy. The out: block

then re-issued qla2x00_get_firmware_state() because rval != QLA_SUCCESS,

defeating the chip-down/EEH-busy guards and issuing a mailbox command

(outside optrom_mutex) during ISP reset or PCI error recovery, which can

hang the adapter. It also turned a normal in-lock mailbox failure into a

second unsynchronized mailbox attempt.

Make the out: fallback only mark the firmware state as unknown. The

mailbox is now issued at most once, inside optrom_mutex, and only when

the chip is up and not EEH-busy.

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References