CVE-2026-89860 scsi: qla2xxx: Initialize NVMe abort_work once at submission
A race condition in the qla2xxx NVMe driver allows concurrent aborts to corrupt workqueue lists, causing kernel crashes or worker loops.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-89860?
CVE-2026-89860 is a high-severity vulnerability in Linux, published on 16 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Initialize NVMe abort_work once at submission
qla_nvme_fcp_abort() and qla_nvme_ls_abort() ran INIT_WORK() on priv->abort_work immediately before schedule_work(). INIT_WORK() reinitializes the work_struct, resetting its list head and clearing the pending bit. If an abort is issued more than once for the same command (for example, concurrent transport teardown and a timeout-driven abort), the second INIT_WORK() reinitializes a work item that is already queued, which can corrupt the workqueue list and lead to crashes or a looping worker.
Initialize priv->abort_work once at command submission, next to the existing per-command spin_lock_init(&priv->cmd_lock), and leave only schedule_work() in the abort paths. schedule_work() already does nothing when the work item is still pending, so a repeated abort no longer disturbs an in-flight work item. The command is not returned to the transport until the final kref_put()/release callback runs after abort_work has completed, so the work item is idle before priv is reused and the single submission-time INIT_WORK() is safe.
Which versions are affected by CVE-2026-89860?
How do I fix CVE-2026-89860?
Apply the vendor's patch.
Is CVE-2026-89860 being exploited?
There is no known exploitation of CVE-2026-89860 in the wild and no public exploit code.
Sources
Also known as AZL-101421, BELL-CVE-2026-89860, DEBIAN-CVE-2026-89860, GHSA-hfg3-mcr3-v8r7, UBUNTU-CVE-2026-89860.