CVE-2023-4569: Kernel: information leak in nft_set_catchall_flush in net/netfilter/nf_tables_api.c
A memory leak flaw was found in nftsetcatchallflush in net/netfilter/nftablesapi.c in the Linux Kernel. This issue may allow a local attacker to cause a double-deactivations of catchall elements, which results in a memory leak.
Other sources
A memory leak flaw was found in nftsetcatchallflush in net/netfilter/nftablesapi.c in the Linux Kernel. This issue may allow a local attacker to cause double-deactivations of catchall elements, which can result in a memory leak.
— Launchpad
A memory leak problem was found in nftsetcatchallflush in net/netfilter/nftablesapi.c in the Linux Kernel. This flaw may allow a local attacker cause a double-deactivations of catchall elements which then results in memory leak problem.
Refer: https://patchwork.ozlabs.org/project/netfilter-devel/patch/20230812110526.49808-1-fw@strlen.de/
— Red Hat