CVE-2025-38549
- Source
- https://cve.org/CVERecord?id=CVE-2025-38549
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38549.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-38549
- Downstream
- Related
- Published
- 2025-08-16T11:34:17Z
- Modified
- 2026-08-12T03:51:47Z
- Summary
- efivarfs: Fix memory leak of efivarfs_fs_info in fs_context error paths
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38549.json" }- References
-
- https://git.kernel.org/stable/c/64e135f1eaba0bbb0cdee859af3328c68d5b9789
- https://git.kernel.org/stable/c/816d36973467d1c9c08a48bdffe4675e219a2e84
- https://git.kernel.org/stable/c/e9fabe7036bb8be6071f39dc38605508f5f57b20
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38549.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-38549
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git