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.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2024-05-09 18:00 | ALAS2KERNEL-5.10-2024-056 |
Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2024-05-09 18:00 | ALAS2KERNEL-5.15-2024-042 |
Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2024-05-09 18:00 | ALAS2KERNEL-5.4-2024-064 |
Amazon Linux 2023 | kernel | 2024-05-09 17:16 | ALAS2023-2024-613 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |