{"id":"CVE-2026-98321","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_nat: unregister and release hooks on error\n\nIf nf_hook_entries_insert_raw() fails, the NAT hooks get never released,\nresulting in a memleak.\n\nPostpone set…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_nat: unregister and release hooks on error\n\nIf nf_hook_entries_insert_raw() fails, the NAT hooks get never released,\nresulting in a memleak.\n\nPostpone set…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1cd472bf036ca038e783ef5f058f54e45b7e8180 < 79084567cd082fb4482e1ea457580e7d6504dd99","Linux >= 1cd472bf036ca038e783ef5f058f54e45b7e8180 < df80342f4bfc023ad7d6703df5e27f583ff0cb8d","Linux >= 1cd472bf036ca038e783ef5f058f54e45b7e8180 < cbdd39ce42530a193c56beb206a3356cb6d01016","Linux 4.18"],"published":"2026-10-06","updated":"2026-10-06","sourceUpdated":"2026-10-06T09:18:24.117","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98321","references":[{"url":"https://git.kernel.org/stable/c/79084567cd082fb4482e1ea457580e7d6504dd99","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cbdd39ce42530a193c56beb206a3356cb6d01016","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/df80342f4bfc023ad7d6703df5e27f583ff0cb8d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-06T08:50:17.407Z","slug":"CVE-2026-98321","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_nat: unregister and release hooks on error\n\nIf nf_hook_entries_insert_raw() fails, the NAT hooks get never released,\nresulting in a memleak.\n\nPostpone setting nat_proto_net->nat_hook_ops when the hooks are\nregistered to simplify the error path to decide whether the nat hooks\nneed unwinding.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}