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...

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...

The vulnerability of the nft_verdict_dump() function in the net/netfilter/nf_tables_api.c module of the Linux kernel’s netfilter component allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the nftverdictdump function in the net/netfilter/nftablesapi.c module of the Linux kernel’s netfilter component is related to the reutilization of previously freed memory due to concurrent access to resources. Exploiting this vulnerability could allow an attacker to compromis...