CyberRota Analysis
AI-GeneratedThe vulnerability in the Linux kernel affects the netfilter subsystem, specifically the nft_object rhltable, which is currently global and can lead to use-after-free conditions due to improper object management during network namespace operations. This flaw could potentially allow an attacker to exploit memory corruption, leading to system instability or unauthorized access. Organizations utilizing Linux systems with netfilter should prioritize this issue to mitigate potential security risks associated with network operations.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: make nft_object rhltable per table The nft_object rhltable is global, this allows for accessing objects that are being dismangled from lookup path by other existing netns. Given the nft_obj_destroy() releases the object inmediately, this might lead to use-after-free of these objects that are being released. Make the existing rhltable per table to address this issue to deal with with the nft_rcv_nl_event() path too. Update nft_obj_lookup() to take the table as non-const, otherwise, compiler complains when passing the objname_ht to rhltable_lookup().