CVE-2026-23229

Medium

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.

Package Linux Kernel
Published 2026-02-18
Last modified 2026-06-02
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 5.10.209, 5.15.148, 6.1.75, 6.6.14, 4.19.306, 5.4.268, 6.7.2, 6.8 and later are affected. Fixed in 5.10.251, 5.15.201, 6.1.164, 6.6.125, 6.12.72, 6.18.11, 6.19.1, 7.0 and their respective stable series.

Affected from
≥ 5.10.209 ≥ 5.15.148 ≥ 6.1.75 ≥ 6.6.14 ≥ 4.19.306 ≥ 5.4.268 ≥ 6.7.2 ≥ 6.8
Fixed in
✓ 5.10.251 5.10.x ✓ 5.15.201 5.15.x ✓ 6.1.164 6.1.x ✓ 6.6.125 6.6.x ✓ 6.12.72 6.12.x ✓ 6.18.11 6.18.x ✓ 6.19.1 6.19.x ✓ 7.0

References

The following references provide additional information about CVE-2026-23229 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

8 patch commits total View all on NVD

Frequently asked questions

  • What is CVE-2026-23229?

    CVE-2026-23229 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.10.209 onward and has been patched in 5.10.251, 5.15.201, 6.1.164 and others. CVE-2026-23229 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2026-23229?

    CVE-2026-23229 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2026-23229?

    Yes — CVE-2026-23229 has been patched. Fixed versions include 5.10.251, 5.15.201, 6.1.164 and others. If you are running Linux kernel 5.10.209 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-23229 actively exploited?

    No — CVE-2026-23229 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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