CVE-2026-45897
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_counter: serialize reset with spinlock Add a global static spinlock to serialize counter fetch+reset operations, preventing concurrent dump-and-reset from underrunning values. The lock is taken before fetching the total so that two parallel resets cannot both read the same counter values and then both subtract them. A global lock is used for simplicity since resets are infrequent. If this becomes a bottleneck, it can be replaced with a per-net lock later.
- Score
- CVSS 3.1 5.5 Medium
- Status
- Modified - 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- Published
- 2026-05-27
- Last modified
- 2026-09-14
Affected products
References
- https://git.kernel.org/stable/c/0cdc6d5a26f2d1f7f15a43526841b679445c32e2
- https://git.kernel.org/stable/c/48cf7918d10c66cb6b05226fa3fa5daf0c891089
- https://git.kernel.org/stable/c/779c60a5190c42689534172f4b49e927c9959e4e
- https://git.kernel.org/stable/c/cd968dcdec6aee79a2d399e4f6e0eca63c3b45e1
- https://git.kernel.org/stable/c/de6601f1374fab124cd9276df6671f64d940ceb4
- https://git.kernel.org/stable/c/e13194e60217db02c2e7202375d9e5951267d87b
