CVE-2023-1095 Information

Description

In nf_tables_updtable if nf_tables_table_enable returns an error nft_trans_destroy is called to free the transaction object. nft_trans_destroy() calls list_del() but the transaction was never placed on a list – the list head is all zeroes this results in a NULL pointer dereference.

Reference

https://github.com/torvalds/linux/commit/580077855a40741cf511766129702d97ff02f4d9 https://bugzilla.redhat.com/show_bug.cgi?id=2173973