Memory Leak Vulnerability in Linux Kernel CIFS Implementation
CVE-2025-68219
What is CVE-2025-68219?
A memory leak was identified in the Common Internet File System (CIFS) implementation of the Linux kernel, specifically during the handling of mount options in smb3_fs_context_parse_param. When processing error paths, the system failed to properly free memory allocated for source strings associated with mount options, leading to resource leaks. The updated error handler now ensures that all allocated memory is correctly released, mitigating potential issues from previous implementations. This vulnerability highlights the importance of comprehensive error handling to prevent memory leaks and improve system stability.
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Affected Version(s)
Linux 24e0a1eff9e2b9835a6e7c17039dfb6ecfd81f1f < 7627864dc3121f39e220f5253a227edf472de59e
Linux 24e0a1eff9e2b9835a6e7c17039dfb6ecfd81f1f < 48d69290270891f988e72edddd9688c20515421d
Linux 24e0a1eff9e2b9835a6e7c17039dfb6ecfd81f1f < 37010021d7e0341bb241ca00bcbae31f2c50b23f