CVE-2026-23229 – crypto: virtio – Add spinlock protection with virtqueue notification

CVE ID : CVE-2026-23229

Published : Feb. 18, 2026, 4:22 p.m. | 37 minutes ago

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

crypto: virtio – Add spinlock protection with virtqueue notification

When VM boots with one virtio-crypto PCI device and builtin backend,
run openssl benchmark command with multiple processes, such as
openssl speed -evp aes-128-cbc -engine afalg -seconds 10 -multi 32

openssl processes will hangup and there is error reported like this:
virtio_crypto virtio0: dataq.0:id 3 is not a head!

It seems that the data virtqueue need protection when it is handled
for virtio done notification. If the spinlock protection is added
in virtcrypto_done_task(), openssl benchmark with multiple processes
works well.

Severity: 0.0 | NA

Visit the link for more details, such as CVSS details, affected products, timeline, and more…