CVE-2026-89850

CVE-2026-89850: vulnerability in Linux

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

Published

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.2%
exploitation probability
0.2%top 90% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · Linux
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References
https://git.kernel.org/stable/c/178d984e8875292582e4295cf559b2b11d3c9325https://git.kernel.org/stable/c/22f44f77da496bc355479c08a0a9dbc9ad42ba42https://git.kernel.org/stable/c/7bc2baed8a3d6a1e2a3f6b78d245f25d1e18a749https://git.kernel.org/stable/c/a194684853dceaa1d6b7a9a02bc12f479232ad9bhttps://git.kernel.org/stable/c/a6374b508893de15fee78583a95f5099d7812e85https://git.kernel.org/stable/c/b6a30baa29695fa0eaba4a3a04435a3c1a5cb63dhttps://git.kernel.org/stable/c/cba780c01f72f8585ca81ad7304097f8b12ef339https://git.kernel.org/stable/c/e0cebe20dcffbed9c078fe30e2d18cd5046d9eff