Answer in brief
CVE-2026-98873 records a Unknown severity vulnerability in netfilter: nf_conntrack_expect: zero at allocation time. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <39cb6ff947c16a576ea68c5f272e634acdcb0085 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <90545aa07a183887e9d72ce573c18e08f62e2c91 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9c11d7ea5ff4dbe162e79f00188814ef5483c295 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b7f3ee925aee9f1f547d539bc03c35433c238958 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <824397af7bfe14edad374c64253dae0187ca623d || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a39ecb856514274c80d0fac4d128dba6b266a8ed || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <241ccd2fed9051db443aadce248fc0ab30f55e97 || >=0 <5.10.271 || >=0 <5.15.222 || >=0 <6.1.189 || >=0 <6.6.158 || >=0 <6.12.111 || >=0 <6.18.53 | 39cb6ff947c16a576ea68c5f272e634acdcb0085, 90545aa07a183887e9d72ce573c18e08f62e2c91, 9c11d7ea5ff4dbe162e79f00188814ef5483c295, b7f3ee925aee9f1f547d539bc03c35433c238958, 824397af7bfe14edad374c64253dae0187ca623d, a39ecb856514274c80d0fac4d128dba6b266a8ed, 241ccd2fed9051db443aadce248fc0ab30f55e97, 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53 |
Published upstream
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 23, 2026
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_expect: zero at allocation time There are occasional LLM hints wrt. leaking uninitialized data to userspace via ctnetlink. Just zero at allocation time, expectations are not frequently used these days. Intentionally keeps _init as-is because we could theoretically support re-init, so add the missing exp->dir there.
Quoted source text, attributed separately from HOL analysis.