kernel: Use-after-free in nft_verdict_dump due to a race between set GC and transaction

A use-after-free flaw was found in the Linux kernel’s nftables sub-component due to a race problem between the set GC and transaction in the Linux Kernel. This flaw allows a local attacker to crash the system due to a missing call to nftsetelemmarkbusy, causing double deactivation of the element...

PT-2023-8117

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivate...