CVE-2024-26643

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout While the rhashtable set gc runs asynchronously, a race allows it to collect elements from anonymous sets with timeouts while it is being released from the commit path. Mingi Cho originally reported this issue in a different path in 6.1.x with a pipapo set with low timeouts which is not possible upstream since 7395dfacfff6 ("netfilter: nf_tables: use timestamp to check for set element timeout"). Fix this by setting on the dead flag for anonymous sets to skip async gc in this case. According to 08e4c8c5919f ("netfilter: nf_tables: mark newset as dead on transaction abort"), Florian plans to accelerate abort path by releasing objects via workqueue, therefore, this sets on the dead flag for abort path too.

• linux linux kernel (< 5.4.274) • linux linux kernel (>= 5.5 < 5.10.215) • linux linux kernel (>= 5.11 < 5.15.154) • linux linux kernel (>= 5.16 < 6.1.84) • linux linux kernel (>= 6.2 < 6.6.24) • linux linux kernel (>= 6.7 < 6.7.12) • debian debian linux 10.0