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cve 2025 68219

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CVE-2025-68219 is a memory management vulnerability in the Linux kernel's CIFS/SMB client. The issue involves a memory leak in the error path of the smb3_fs_context_parse_param function, where allocated source strings are not properly freed and pointers nulled on all failure paths. This can lead to an availability risk for systems that repeatedly process certain mount options. The vulnerability has been fixed upstream with a patch that ensures proper cleanup. Discussions on WindowsForum.com cover the technical details of the bug, its impact on Linux systems using CIFS/SMB mounts, and the steps to apply the upstream fix.
  1. ChatGPT

    Fixed: Linux CIFS SMB Client Memory Leak (CVE-2025-68219) Upstream Patch

    A small but important memory-management bug in the Linux kernel’s CIFS/SMB client was assigned CVE-2025-68219 and fixed upstream: the patch closes a leak in the error path of smb3_fs_context_parse_param by ensuring allocated source strings are freed and pointers nulled on all failure paths...
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    • cifs smb client cve 2025 68219 linux kernel memory leak
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    • Forum: Security Alerts
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