Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Don't use test_bit() in lockless RCU readers in hash types Sashiko pointed out that there are a few lockless RCU readers using test_bit() which is a relaxed atomic operation and provides no memory barrier guarantees. Use test_bit_acquire() instead where the operation may run parallel with add/del/gc, i.e. is not one from the next cases - protected by region lock - in a set destroy phase - in a new/temporary set creation phase
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
18f84d41d34fa35d0d64bbaea01fe664553ecc06 to < c107233d2ff4fd7cef5d02f9124b99194957a710affected18f84d41d34fa35d0d64bbaea01fe664553ecc06 to < 6329d3a9afe715fddda0460cfa46b496d61c2fe0affected18f84d41d34fa35d0d64bbaea01fe664553ecc06 to < 7445fe965b7d8756070a40e80f8b73348ccda1d7affected18f84d41d34fa35d0d64bbaea01fe664553ecc06 to < c4d257734e91bfcdc71d41843392dd6400b5bb1baffected18f84d41d34fa35d0d64bbaea01fe664553ecc06 to < 3219d74e4536658c937fd878a327257b86ce80ddaffected18f84d41d34fa35d0d64bbaea01fe664553ecc06 to < e4b4984e28c16406ecb318444dea4a8bf47def3eaffected
Linux Linux
Default version status: affected
4.2affected0 to < 4.2unaffected6.1.178 to ≤ 6.1.*unaffected6.6.145 to ≤ 6.6.*unaffected6.12.97 to ≤ 6.12.*unaffected6.18.40 to ≤ 6.18.*unaffected7.1.5 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/c107233d2ff4fd7cef5d02f9124b99194957a710 ↗
- https://git.kernel.org/stable/c/6329d3a9afe715fddda0460cfa46b496d61c2fe0 ↗
- https://git.kernel.org/stable/c/7445fe965b7d8756070a40e80f8b73348ccda1d7 ↗
- https://git.kernel.org/stable/c/c4d257734e91bfcdc71d41843392dd6400b5bb1b ↗
- https://git.kernel.org/stable/c/3219d74e4536658c937fd878a327257b86ce80dd ↗
- https://git.kernel.org/stable/c/e4b4984e28c16406ecb318444dea4a8bf47def3e ↗