CVE-2026-98873
netfilter: nf_conntrack_expect: zero at allocation time
CVE-2026-98873 is fixed in 75 products on 1 platform, first by DEBIAN-CVE-2026-98873, released October 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
6.1
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0018
7th percentile
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| bpftool · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| bpftool · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| bpftool-debuginfo · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| bpftool6.12 · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| bpftool6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| kernel-debuginfo · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| kernel-devel · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| kernel-headers · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| kernel-livepatch-6.1.189-236.399 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| kernel-livepatch-6.12.111-136.204 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel-livepatch-6.18.54-121.166 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel-modules-extra · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| kernel-modules-extra-common · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| kernel-tools · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| kernel-tools-debuginfo · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| kernel-tools-devel · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| kernel-uek · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-container · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-container · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-container-debug · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-container-debug · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-core · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-core · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-debug · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-debug · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-debug-core · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-debug-core · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-debug-devel · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-debug-modules · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-debug-modules-extra · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-devel · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-devel · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-doc · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-doc · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-modules · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-modules · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-modules-extra · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek64k · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek64k · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek64k-core · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek64k-core · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek64k-devel · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek64k-devel · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek64k-modules · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek64k-modules · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek64k-modules-extra · ol 8 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:5.15.0-326.222.4.el9uek | ELSA-2026-500574 | Nov 7, 2026 |
| kernel6.12 · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-devel · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-headers · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-tools · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| linux · Debian 12.15 (bookworm) | 6.1.190-1 | DEBIAN-CVE-2026-98873 | Oct 24, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.111-1 | DEBIAN-CVE-2026-98873 | Oct 24, 2026 |
| linux · Debian 14 | 7.2.6-1 | DEBIAN-CVE-2026-98873 | Oct 24, 2026 |
| microvm-kernel · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| microvm-kernel6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| perf · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| perf-debuginfo · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| perf6.12 · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| python3-perf · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| python3-perf-debuginfo · amzn 2023 | 1:6.1.189-236.399.amzn2023 | ALAS2023-2026-3336 | Nov 7, 2026 |
| python3-perf6.12 · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
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