FlawAtlas
Search the atlas
CVE-2026-23229 Not scored

crypto: virtio - Add spinlock protection with virtqueue notification

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.

Exploit probability 0.1%
Published February 18, 2026
Required by Not available
Last source change July 15, 2026

02 / AFFECTED SOFTWARE

Affected packages

Linux Kernel
Unknown Unknown

1671 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

related OPENSUSE-SU-2026:10387-1
related OPENSUSE-SU-2026:20416-1
related SUSE-SU-2026:0962-1
related SUSE-SU-2026:1081-1
related SUSE-SU-2026:20667-1
related SUSE-SU-2026:20720-1
related SUSE-SU-2026:20838-1
related SUSE-SU-2026:20845-1
related SUSE-SU-2026:20876-1
related SUSE-SU-2026:20931-1
related SUSE-SU-2026:21284-1

04 / EVIDENCE

Source records

Open Source Vulnerabilities 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.

View original source

05 / REFERENCES

Further evidence