CVE-2024-26925 Information

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.

Reference

https://git.kernel.org/stable/c/61ac7284346c32f9a8c8ceac56102f7914060428 https://git.kernel.org/stable/c/2cee2ff7f8cce12a63a0a23ffe27f08d99541494 https://git.kernel.org/stable/c/eb769ff4e281f751adcaf4f4445cbf30817be139 https://git.kernel.org/stable/c/8d3a58af50e46167b6f1db47adadad03c0045dae https://git.kernel.org/stable/c/8038ee3c3e5b59bcd78467686db5270c68544e30 https://git.kernel.org/stable/c/a34ba4bdeec0c3b629160497594908dc820110f1 https://git.kernel.org/stable/c/0d459e2ffb541841714839e8228b845458ed3b27