[ CVE-2026-97998 · Published 25 Sep 2026 ]
Vulnerability in Linux
[ Description ]Official description
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
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ Advisories ]Government CERT advisories
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CERT-FRCERTFR-2026-AVI-1289
Multiple vulnerabilities in the Debian LTS Linux kernel Translated from French
Multiple vulnerabilities have been discovered in the Debian LTS Linux kernel. Some of them allow an attacker to cause privilege escalation, a breach of data confidentiality and denial of service.
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CERT-FRCERTFR-2026-AVI-1253
Multiple vulnerabilities in the Debian Linux kernel Translated from French
Multiple vulnerabilities have been discovered in the Debian Linux kernel. Some of them allow an attacker to cause privilege escalation, a breach of data confidentiality and denial of service.
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BSI CERT-BundWID-SEC-2026-3579
Linux Kernel: Multiple vulnerabilities Translated from German
[ References ]References
- git.kernel.org/stable/c/0234d7ca0317be0a623300e1693cd794bbfdf8af
- git.kernel.org/stable/c/042465e7d3d3127e21f04e42c1639e2518b98915
- git.kernel.org/stable/c/1a7a8ac9a9f0ad0d410c901cb6f233833518844c
- git.kernel.org/stable/c/291685fc8d2e4cf75ed3a23c810883653f407f46
- git.kernel.org/stable/c/3161186a2ff81288e9a5f35daf1911153764ecae
- git.kernel.org/stable/c/387d744fa7e499d2c3748a4e60e02ebb24e7fb16
- git.kernel.org/stable/c/c5c89beaa628d6ac527c6eb2e01b2b52eb417f59
- git.kernel.org/stable/c/e2dd0f1f8c4e6334699ea6382e52f6da0c7e45eb