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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.89-r0) |
| 25 LTS | linux-lts | Fixed (6.12.41-r0) | |
| Stream | linux-lts | Fixed (6.12.41-r0) |
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