Bug 2360233 (CVE-2025-22079)

Summary: CVE-2025-22079 kernel: ocfs2: validate l_tree_depth to avoid out-of-bounds access
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-04-16 15:03:47 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ocfs2: validate l_tree_depth to avoid out-of-bounds access

The l_tree_depth field is 16-bit (__le16), but the actual maximum depth is
limited to OCFS2_MAX_PATH_DEPTH.

Add a check to prevent out-of-bounds access if l_tree_depth has an invalid
value, which may occur when reading from a corrupted mounted disk [1].
Comment 1 Avinash Hanwate 2025-04-17 12:07:27 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025041613-CVE-2025-22079-c7b2@gregkh/T