CVE-2026-98873
Published Oct 23, 2026
Description
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.
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References
Other References
https://git.kernel.org/stable/c/241ccd2fed9051db443aadce248fc0ab30f55e97
https://git.kernel.org/stable/c/39cb6ff947c16a576ea68c5f272e634acdcb0085
https://git.kernel.org/stable/c/824397af7bfe14edad374c64253dae0187ca623d
https://git.kernel.org/stable/c/90545aa07a183887e9d72ce573c18e08f62e2c91
https://git.kernel.org/stable/c/9c11d7ea5ff4dbe162e79f00188814ef5483c295
https://git.kernel.org/stable/c/a39ecb856514274c80d0fac4d128dba6b266a8ed
https://git.kernel.org/stable/c/b7f3ee925aee9f1f547d539bc03c35433c238958
Frequently Asked Questions
What is CVE-2026-98873? +
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.
How do I check if I'm vulnerable to CVE-2026-98873? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.