CVE-2026-92476 crypto: keembay - Initialize completion before requesting IRQ
A race condition in the Keembay AES crypto driver allows an interrupt to use an uninitialized completion, potentially causing a kernel crash.
- 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-2026-92476?
CVE-2026-92476 is a vulnerability in Linux, published on 17 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:
crypto: keembay - Initialize completion before requesting IRQ
kmb_ocs_aes_probe() requests the device IRQ before initializing irq_completion. Once the handler is registered it can run immediately, and ocs_aes_irq_handler() unconditionally calls complete(). An interrupt in this window would therefore use an uninitialized completion.
Initialize the completion before requesting the IRQ, as the sibling OCS HCU and ECC drivers already do.
Which versions are affected by CVE-2026-92476?
How do I fix CVE-2026-92476?
Apply the vendor's patch.
Is CVE-2026-92476 being exploited?
There is no known exploitation of CVE-2026-92476 in the wild and no public exploit code.
Sources
Also known as AZL-102500, BELL-CVE-2026-92476, DEBIAN-CVE-2026-92476, GHSA-6qx5-457h-97h3, UBUNTU-CVE-2026-92476.