CVE-2026-23229
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Linux kernel Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | 4.20 |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.12.73-1 |
| sid | Fixed | 6.18.12-1 |
| forky | Fixed | 6.18.12-1 |
| bullseye | Fixed | 5.10.251-1 |
| bookworm | Fixed | 6.1.164-1 |
References
- https://www.suse.com/security/cve/CVE-2026-23229.html
- https://security-tracker.debian.org/tracker/CVE-2026-23229
- https://git.kernel.org/stable/c/49c57c6c108931a914ed94e3c0ddb974008260a3
- https://git.kernel.org/stable/c/552475d0b6cece73a52c0fa5faa0ce45e99df74b
- https://git.kernel.org/stable/c/8ee8ccfd60bf17cbdab91069d324b5302f4f3a30
- https://git.kernel.org/stable/c/b505047ffc8057555900d2d3a005d033e6967382
- https://git.kernel.org/stable/c/c0a0ded3bb7fd45f720faa48449a930153257d3a
- https://git.kernel.org/stable/c/c9e594194795c86ca753ad6ed64c2762e9309d0d
- https://git.kernel.org/stable/c/d6f0d586808689963e58fd739bed626ff5013b24
- https://git.kernel.org/stable/c/e69a7b0a71b6561b3b6459f1fded8d589f2e8ac2
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.