CVE-2023-52581 | BDVDB-2026-226359 Detail
LinuxLinux
Description#
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix memleak when more than 255 elements expired When more than 255 elements expired we're supposed to switch to a new gc container structure. This never happens: u8 type will wrap before reaching the boundary and nft_trans_gc_space() always returns true. This means we recycle the initial gc container structure and lose track of the elements that came before. While at it, don't deref 'gc' after we've passed it to call_rcu.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact high. Attack vector: local.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/stable/c/7cf055b43756b10aa2b851c927c940f5ed652125
- https://git.kernel.org/stable/c/a995a68e8a3b48533e47c856865d109a1f1a9d01
- https://git.kernel.org/stable/c/09c85f2d21ab6b5acba31a037985b13e8e6565b8
- https://git.kernel.org/stable/c/ef99506eaf1dc31feff1adfcfd68bc5535a22171
- https://git.kernel.org/stable/c/7e5d732e6902eb6a37b35480796838a145ae5f07
- https://git.kernel.org/stable/c/4aea243b6853d06c1d160a9955b759189aa02b14
- https://git.kernel.org/stable/c/cf5000a7787cbc10341091d37245a42c119d26c5
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.