CVE-2025-38549 - Linux efivarfs Memory Leak

CVE-2025-38549 - Linux efivarfs Memory Leak

https://cvefeed.io/rssfeed/latest.atom / Sat, 08/16/2025 - 17:35
CVE ID : CVE-2025-38549
Published : Aug. 16, 2025, 12:15 p.m. | 2 hours, 55 minutes ago
Description : 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.
Severity: 0.0 | NA
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