CVE-2024-26925

Published: April 27, 2024Last modified: April 27, 2024

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.

Status

References

• http://www.openwall.com/lists/oss-security/2024/05/07/6
• http://www.openwall.com/lists/oss-security/2024/05/08/2
• 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
• https://git.kernel.org/stable/c/a34ba4bdeec0c3b629160497594908dc820110f1
• https://git.kernel.org/stable/c/eb769ff4e281f751adcaf4f4445cbf30817be139
• https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html