Not yet scoredPublished Sep 16, 2026

CVE-2026-89842scsi: qla2xxx: Skip NVMe LS reject IOCB when FW not started

Updated under an hour ago (Oct 28, 2026, 12:10 AM ET)

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Exploited in the last 30 days

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().

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	875386b98857822b77ac7f95bdf367b70af5b78c builds before 2935b730211c5c1433aa6101fa3b55df2b63869a; 875386b98857822b77ac7f95bdf367b70af5b78c builds before 7c1fc75dd3fb6b6414508fbdf7aeed0d757c9120; from 875386b98857822b77ac7f95bdf367b70af5b78c before ac4b019ac07844d3f67ea5e48b1d982b2170d1a7; from 875386b98857822b77ac7f95bdf367b70af5b78c before e9bfb56e2c1bda49d3c5442d824569d71eec07e2; from 875386b98857822b77ac7f95bdf367b70af5b78c before f7e46ebffc5781aab3f1f5a5d4350addbb5833f4	CNA record

References

References

https://git.kernel.org/stable/c/2935b730211c5c1433aa6101fa3b55df2b63869a
https://git.kernel.org/stable/c/7c1fc75dd3fb6b6414508fbdf7aeed0d757c9120
https://git.kernel.org/stable/c/ac4b019ac07844d3f67ea5e48b1d982b2170d1a7
https://git.kernel.org/stable/c/e9bfb56e2c1bda49d3c5442d824569d71eec07e2
https://git.kernel.org/stable/c/f7e46ebffc5781aab3f1f5a5d4350addbb5833f4

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.