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CVE-2026-80636 Details

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: revert ct extension genid infrastructure This infrastructure is not used anymore after moving ct timeout and helper to use datapath refcount to track object use. Revert commit c56716c69ce1 ("netfilter: extensions: introduce extension genid count") this patch disables all ct extensions (leading to NULL) for unconfirmed conntracks, when this is only targeted at ct helper and ct timeout. There is also codebase that dereferences the ct extension without checking for NULL which could lead to crash.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://git.kernel.org/stable/c/35e21a4dccc5c255ba59ccfbfeb4629ed21da972	kernel.org
https://git.kernel.org/stable/c/61eab1d0237eb513fe73e391a5926ee70092c325	kernel.org
https://git.kernel.org/stable/c/6bba4846f196d081bf553391d12b5a73dcc48685	kernel.org
https://git.kernel.org/stable/c/a052a94bcc629acaecc2ce42a4af77f8fa399757	kernel.org
https://git.kernel.org/stable/c/d53eecbca16f056abba274075cb15120ab062518	kernel.org

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes