PT-2024-26764 · Linux+5 · Linux Kernel+5
Published
2024-04-02
·
Updated
2026-05-26
·
CVE-2024-35869
CVSS v3.1
8.4
High
| Vector | AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.6.37
Description
The issue is related to a potential use-after-free bug in the Linux kernel's SMB client when walking DFS referrals, mounting, and performing DFS failover. This is resolved by ensuring all children from the parent session are refcounted, as they are needed across the entire DFS mount. The fix also involves getting rid of the dfs ses list.
Recommendations
Update to Linux kernel version 6.6.37 or later to resolve the issue. As a temporary workaround, consider restricting access to the vulnerable SMB client functionality until a patch is applied.
Exploit
Fix
DoS
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Red Hat
Suse
Ubuntu