CVE-2026-97998netfilter: nfnetlink_log: cope with concurrent instance destruction
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No exploitation reported and no EPSS estimate yet.
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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
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 3, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 0597f2680d666a3bcf101ac0c771ba7e50016bbd before c5c89beaa628d6ac527c6eb2e01b2b52eb417f59; from 0597f2680d666a3bcf101ac0c771ba7e50016bbd before 042465e7d3d3127e21f04e42c1639e2518b98915; from 0597f2680d666a3bcf101ac0c771ba7e50016bbd before 291685fc8d2e4cf75ed3a23c810883653f407f46; from 0597f2680d666a3bcf101ac0c771ba7e50016bbd before 3161186a2ff81288e9a5f35daf1911153764ecae; 0597f2680d666a3bcf101ac0c771ba7e50016bbd builds before 0234d7ca0317be0a623300e1693cd794bbfdf8af; 0597f2680d666a3bcf101ac0c771ba7e50016bbd builds before 1a7a8ac9a9f0ad0d410c901cb6f233833518844c; from 0597f2680d666a3bcf101ac0c771ba7e50016bbd before e2dd0f1f8c4e6334699ea6382e52f6da0c7e45eb; 0597f2680d666a3bcf101ac0c771ba7e50016bbd builds before 387d744fa7e499d2c3748a4e60e02ebb24e7fb16 | CNA record |
References
- https://git.kernel.org/stable/c/c5c89beaa628d6ac527c6eb2e01b2b52eb417f59
- https://git.kernel.org/stable/c/042465e7d3d3127e21f04e42c1639e2518b98915
- https://git.kernel.org/stable/c/291685fc8d2e4cf75ed3a23c810883653f407f46
- https://git.kernel.org/stable/c/3161186a2ff81288e9a5f35daf1911153764ecae
- https://git.kernel.org/stable/c/0234d7ca0317be0a623300e1693cd794bbfdf8af
- https://git.kernel.org/stable/c/1a7a8ac9a9f0ad0d410c901cb6f233833518844c
- https://git.kernel.org/stable/c/e2dd0f1f8c4e6334699ea6382e52f6da0c7e45eb
- https://git.kernel.org/stable/c/387d744fa7e499d2c3748a4e60e02ebb24e7fb16
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.