CVE-2026-23229

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.