cve/2023/CVE-2023-52581.md

CVE-2023-52581

Description

In the Linux kernel, the following vulnerability has been resolved:netfilter: nf_tables: fix memleak when more than 255 elements expiredWhen more than 255 elements expired we're supposed to switch to a new gccontainer structure.This never happens: u8 type will wrap before reaching the boundaryand nft_trans_gc_space() always returns true.This means we recycle the initial gc container structure andlose track of the elements that came before.While at it, don't deref 'gc' after we've passed it to call_rcu.

POC

Reference

No PoCs from references.

Github

• https://github.com/fkie-cad/nvd-json-data-feeds