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VULNERABILITIES

CVE-2026-98320 Details

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: hold reference on ct until flow is released nf_ct_put() releases the ct->ext area inmediately, the rcu typesafe semantics also allow to refer to the wrong conntrack from the flowtable datapath. Hold reference on ct until flow is released after rcu grace period. Add rcu_barrier() on module exit path, to ensure pending flow entries are release before module goes away.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/12c1ac230f4ca16e0017b62a963ab75e0b48074f kernel.org
https://git.kernel.org/stable/c/61c6688be282277c6e91ab286a7acd0ae8681ac6 kernel.org
https://git.kernel.org/stable/c/8274cdc5f9c57e17ed77fc4ba76212536c840f25 kernel.org
https://git.kernel.org/stable/c/93ff1594be1aad4da364462dd8db050ebcfda2de kernel.org
https://git.kernel.org/stable/c/a43cd2b67b91e943273c913237a7a88c50cdcfbc kernel.org

see all 8 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-98320
NVD Published Date:
Oct 6, 2026
NVD Last Modified:
Oct 7, 2026
Source:
kernel.org
CVE-2026-98320 Details - Not Deferred