Improper Check or Handling of Exceptional Conditions The advisory has been revoked - it doesn't affect any version of package kernel-headers (opens in a new tab)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-12291165
- published31 Aug 2025
- disclosed27 Feb 2025
Introduced: 27 Feb 2025
CVE-2025-21808 (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:
net: xdp: Disallow attaching device-bound programs in generic mode
Device-bound programs are used to support RX metadata kfuncs. These kfuncs are driver-specific and rely on the driver context to read the metadata. This means they can't work in generic XDP mode. However, there is no check to disallow such programs from being attached in generic mode, in which case the metadata kfuncs will be called in an invalid context, leading to crashes.
Fix this by adding a check to disallow attaching device-bound programs in generic mode.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2348898
- https://access.redhat.com/security/cve/CVE-2025-21808
- https://git.kernel.org/stable/c/3595599fa8360bb3c7afa7ee50c810b4a64106ea
- https://git.kernel.org/stable/c/557707906dd3e34b8a8c265f664d19f95799937e
- https://git.kernel.org/stable/c/5a9eae683d6c36e8a7aa31e5eb8b369e41aa66e1
- https://git.kernel.org/stable/c/b1bc4a35a04cbeb85b6ef5911ec015baa424989f