{"id":"CVE-2026-74565","title":"netfilter: nf_tables: make nft_object rhltable per table","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: make nft_object rhltable per table\n\nThe nft_object rhltable is global, this allows for accessing objects\nthat are being dismangled from lookup pat…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 4d44175aa5bb5f68772b1eb0306554812294ca52 < 4b549d32d34ee765527e63726bb1af984876e776","Linux >= 4d44175aa5bb5f68772b1eb0306554812294ca52 < 523c881661dde67efb44fce38c8eed50a72a57c1","Linux >= 4d44175aa5bb5f68772b1eb0306554812294ca52 < 1948e4f85b855618b5b9a27265f98d816f4cb7cb","Linux >= 4d44175aa5bb5f68772b1eb0306554812294ca52 < 63ba12b664a2cd3220ed43e22c717715f4cc2ae8","Linux >= 4d44175aa5bb5f68772b1eb0306554812294ca52 < 7d4789b58761d9d48d9b5f5e7e0a510c3bbfb3af","Linux >= 4d44175aa5bb5f68772b1eb0306554812294ca52 < f4f699790590bd0896c48a71e9232a65198f92f0","Linux 5.1"],"published":"2026-08-15","updated":"2026-09-14","sourceUpdated":"2026-09-14T11:58:48.270Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74565","references":[{"url":"https://git.kernel.org/stable/c/4b549d32d34ee765527e63726bb1af984876e776"},{"url":"https://git.kernel.org/stable/c/523c881661dde67efb44fce38c8eed50a72a57c1"},{"url":"https://git.kernel.org/stable/c/1948e4f85b855618b5b9a27265f98d816f4cb7cb"},{"url":"https://git.kernel.org/stable/c/63ba12b664a2cd3220ed43e22c717715f4cc2ae8"},{"url":"https://git.kernel.org/stable/c/7d4789b58761d9d48d9b5f5e7e0a510c3bbfb3af"},{"url":"https://git.kernel.org/stable/c/f4f699790590bd0896c48a71e9232a65198f92f0"}],"tags":["cve.org"],"epss":0.00117,"epssPercentile":0.01887,"ingestedAt":"2026-09-14T15:23:07.456Z","slug":"CVE-2026-74565","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: make nft_object rhltable per table\n\nThe nft_object rhltable is global, this allows for accessing objects\nthat are being dismangled from lookup path by other existing netns.\nGiven the nft_obj_destroy() releases the object inmediately, this might\nlead to use-after-free of these objects that are being released.\nMake the existing rhltable per table to address this issue to deal with\nwith the nft_rcv_nl_event() path too.\n\nUpdate nft_obj_lookup() to take the table as non-const, otherwise,\ncompiler complains when passing the objname_ht to rhltable_lookup().\n\n## Affected\n\n- `Linux >= 4d44175aa5bb5f68772b1eb0306554812294ca52 < 4b549d32d34ee765527e63726bb1af984876e776`\n- `Linux >= 4d44175aa5bb5f68772b1eb0306554812294ca52 < 523c881661dde67efb44fce38c8eed50a72a57c1`\n- `Linux >= 4d44175aa5bb5f68772b1eb0306554812294ca52 < 1948e4f85b855618b5b9a27265f98d816f4cb7cb`\n- `Linux >= 4d44175aa5bb5f68772b1eb0306554812294ca52 < 63ba12b664a2cd3220ed43e22c717715f4cc2ae8`\n- `Linux >= 4d44175aa5bb5f68772b1eb0306554812294ca52 < 7d4789b58761d9d48d9b5f5e7e0a510c3bbfb3af`\n- `Linux >= 4d44175aa5bb5f68772b1eb0306554812294ca52 < f4f699790590bd0896c48a71e9232a65198f92f0`\n- `Linux 5.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}