Missing Synchronization The advisory has been revoked - it doesn't affect any version of package kernel-headers (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-KERNELHEADERS-15313323
- published19 Feb 2026
- disclosed18 Feb 2026
Introduced: 18 Feb 2026
CVE-2026-23229 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL.
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.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2440664
- https://access.redhat.com/security/cve/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