{"id":"CVE-2026-98793","published":"2026-10-18T16:17:33.287","lastModified":"2026-10-19T10:19:43.330","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bpf: reject invalid NAT manipulation types\n\nAs bpf_ct_set_nat_info() is not validating the NAT manipulation type a\nwrong value can be passed directly to nf_nat_setup_info(). This triggers\nthe WARN_ON() at nf_nat_setup_info() and if panic_on_warn isn't set,\nthen IPS_SRC_NAT_DONE is set without adding nat_bysource and conntrack\ncleanup tries to unlink an uninitialized hlist node.\n\nFix this by checking that NAT manipulation type is correct before\ncalling nf_nat_setup_info(). In addition, if the WARN_ON is hit, return\nNF_DROP instead of continuing with the processing to avoid similar\nsituations in the future.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/16d464013ec2267b00a83f4bfbb97b3ecc63bfa7","tags":[]},{"url":"https://git.kernel.org/stable/c/58108f05b0502448f6bb612ee2eccc63bd6449cb","tags":[]},{"url":"https://git.kernel.org/stable/c/ea777dc90ab37e64fa4b92f6fcf3b5edcef5e058","tags":[]},{"url":"https://git.kernel.org/stable/c/f6143ae109df56d51d5536e813deb19eee7a6205","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}