{"id":"CVE-2023-52581","state":"PUBLISHED","title":"netfilter: nf_tables: fix memleak when more than 255 elements expired","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: fix memleak when more than 255 elements expired\n\nWhen more than 255 elements expired we're supposed to switch to a new gc\ncontainer structure.\n\nThis never happens: u8 type will wrap before reaching the boundary\nand nft_trans_gc_space() always returns true.\n\nThis means we recycle the initial gc container structure and\nlose track of the elements that came before.\n\nWhile at it, don't deref 'gc' after we've passed it to call_rcu.","publishedAt":"2024-03-02T21:59:47.856Z","updatedAt":"2026-05-23T15:26:26.550Z","severity":{"score":6.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux 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