CVE-2026-97608 Linux Kernel netfilter nf_log - Race Condition

Linux kernel netfilter nf_log contains a race condition caused by improper ordering of logger unregistration in per-network namespace and global logger backends, letting attackers cause use-after-free or stale pointer dereference, exploit requires concurrent sysctl or netlink writer access.

CVSS base score 7.0 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.14% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Race Condition
Impact
Denial Of Service, Remote Code Execution
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
25 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix for proper logger unregistration ordering.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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