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Use After Free The advisory has been revoked - it doesn't affect any version of package kernel-modules-internal  (opens in a new tab)

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EPSS
0.25% (16th percentile)

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  • Snyk IDSNYK-CENTOS10-KERNELMODULESINTERNAL-21861591
  • published30 Oct 2026
  • disclosed7 Mar 2025
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Introduced: 7 Mar 2025

CVE-2025-21836  (opens in a new tab)
CWE-416  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-modules-internal package and not the kernel-modules-internal package as distributed by Centos.

In the Linux kernel, the following vulnerability has been resolved:

io_uring/kbuf: reallocate buf lists on upgrade

IORING_REGISTER_PBUF_RING can reuse an old struct io_buffer_list if it was created for legacy selected buffer and has been emptied. It violates the requirement that most of the field should stay stable after publish. Always reallocate it instead.