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

scsi: qla2xxx: Skip NVMe LS reject IOCB when FW not started

qla_nvme_xmt_ls_rsp() bails out to the out: label when firmware is not
started (!ha->flags.fw_started), but the out: path unconditionally calls
qla_nvme_ls_reject_iocb(), which ends in qla2x00_start_iocbs() and an
unconditional doorbell write to the request queue in-pointer register.
This rings the firmware doorbell and queues an IOCB that stopped or
resetting firmware cannot consume, and touches MMIO during the reset/EEH
window where fw_started is also clear.

Only emit the LS reject IOCB (and ring the doorbell) when fw_started is
set; otherwise just clean up and return. The post-allocation failure
cases (SRB alloc / qla2x00_start_sp() failure) run with firmware started
and still send the reject. Apply the same guard to the reject emission
in qla2xxx_process_purls_pkt().
Advisories

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Fixes

Solution

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Workaround

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History

Wed, 16 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Skip NVMe LS reject IOCB when FW not started qla_nvme_xmt_ls_rsp() bails out to the out: label when firmware is not started (!ha->flags.fw_started), but the out: path unconditionally calls qla_nvme_ls_reject_iocb(), which ends in qla2x00_start_iocbs() and an unconditional doorbell write to the request queue in-pointer register. This rings the firmware doorbell and queues an IOCB that stopped or resetting firmware cannot consume, and touches MMIO during the reset/EEH window where fw_started is also clear. Only emit the LS reject IOCB (and ring the doorbell) when fw_started is set; otherwise just clean up and return. The post-allocation failure cases (SRB alloc / qla2x00_start_sp() failure) run with firmware started and still send the reject. Apply the same guard to the reject emission in qla2xxx_process_purls_pkt().
Title scsi: qla2xxx: Skip NVMe LS reject IOCB when FW not started
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-09-16T10:31:16.544Z

Reserved: 2026-09-11T19:38:34.770Z

Link: CVE-2026-89842

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-16T11:16:51.040

Modified: 2026-09-16T11:16:51.040

Link: CVE-2026-89842

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.