Missing Release of Resource after Effective Lifetime The advisory has been revoked - it doesn't affect any version of package kernel-headers (opens in a new tab)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-12009309
- published19 Aug 2025
- disclosed16 Aug 2025
Introduced: 16 Aug 2025
CVE-2025-38549 (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:
efivarfs: Fix memory leak of efivarfs_fs_info in fs_context error paths
When processing mount options, efivarfs allocates efivarfs_fs_info (sfi) early in fs_context initialization. However, sfi is associated with the superblock and typically freed when the superblock is destroyed. If the fs_context is released (final put) before fill_super is called—such as on error paths or during reconfiguration—the sfi structure would leak, as ownership never transfers to the superblock.
Implement the .free callback in efivarfs_context_ops to ensure any allocated sfi is properly freed if the fs_context is torn down before fill_super, preventing this memory leak.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2388922
- https://access.redhat.com/security/cve/CVE-2025-38549
- https://git.kernel.org/stable/c/64e135f1eaba0bbb0cdee859af3328c68d5b9789
- https://git.kernel.org/stable/c/816d36973467d1c9c08a48bdffe4675e219a2e84
- https://git.kernel.org/stable/c/e9fabe7036bb8be6071f39dc38605508f5f57b20