CVE-2024-26925
netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path
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Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path The commit mutex should not be released during the critical section between nft_gc_seq_begin() and nft_gc_seq_end(), otherwise, async GC worker could collect expired objects and get the released commit lock within the same GC sequence. nf_tables_module_autoload() temporarily releases the mutex to load module dependencies, then it goes back to replay the transaction again. Move it at the end of the abort phase after nft_gc_seq_end() is called.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/0d459e2ffb541841714839e8228b845458ed3b27
- https://git.kernel.org/stable/c/2cee2ff7f8cce12a63a0a23ffe27f08d99541494
- https://git.kernel.org/stable/c/61ac7284346c32f9a8c8ceac56102f7914060428
- https://git.kernel.org/stable/c/8038ee3c3e5b59bcd78467686db5270c68544e30
- https://git.kernel.org/stable/c/8d3a58af50e46167b6f1db47adadad03c0045dae
References (10)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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