What is CVE-2026-97998?

CVE-2026-97998 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 2.6.14 onward and patched in 5.10.271, 5.15.222, 6.1.189 and others. CVE-2026-97998 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-97998?

CVE-2026-97998 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-97998?

Yes, CVE-2026-97998 has been patched. Fixed versions include 5.10.271, 5.15.222, 6.1.189 and others. If you are running Linux kernel 2.6.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-97998 actively exploited?

CVE-2026-97998 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-97998

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_log: cope with concurrent instance destruction Instances are refcounted. However, only memory release happens on the 1 -> 0 transition; the unlink from hashes can occur with any refcount. Uncooperative userspace can force a situation where a queue is pending for destruction from netlink event while a different socket with same portid processes an UNBIND request. With right timing, this will unhash the instance again: Oops: general protection fault, [..] Call Trace: <TASK> nfulnl_recv_config+0x31a/0xd50 nfnetlink_rcv_msg+0x7c2/0xeb0

Package Linux Kernel

Published 2026-09-25

Last modified 2026-10-03

Patch available

Yes

Affected versions

Linux kernel versions 2.6.14 and later are affected. Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3-rc3 and their respective stable series.

Affected from

≥ 2.6.14

Fixed in

✓ 5.10.271 5.10.x ✓ 5.15.222 5.15.x ✓ 6.1.189 6.1.x ✓ 6.6.158 6.6.x ✓ 6.12.111 6.12.x ✓ 6.18.53 6.18.x ✓ 7.2.7 7.2.x ✓ 7.3-rc3

References

8 total

Showing 5 of 8 references View all on NVD

Frequently asked questions

What is CVE-2026-97998?

CVE-2026-97998 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.14 onward and has been patched in 5.10.271, 5.15.222, 6.1.189 and others. CVE-2026-97998 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-97998?

Yes. CVE-2026-97998 has been patched. Fixed versions include 5.10.271, 5.15.222, 6.1.189 and others. If you are running Linux kernel 2.6.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-97998 actively exploited?

No. CVE-2026-97998 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.