CVE-2026-80744: Linux kernel · netfilter: nf_tables_offload: suppress WARN_ON_ONCE for ENOMEM in abort path
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in d02f592064347e0c1e0d84f24941ad338838cc48 : update Linux kernel when convenient.
Data as of 6 Nov 2026, 17:40 UTC
Rated Low by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-11-06.
- Patch
- Available – fixed in d02f592064347e0c1e0d84f24941ad338838cc48, c23620a0fa5b1d80399f894c41a9f78bc29d6235, 2319033c4bf8bdb275a9e4e1f7af9bf8a457ad79 +5
Exploitation evidence
Disclosed: evidence found.
CVE published 3 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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AI-suggested
A fix is available and has been applied in the Linux kernel via multiple commits. Users should update their Linux kernel to a version including these fixes to suppress the unnecessary WARN_ON_ONCE warnings on -ENOMEM errors in nf_tables_offload. No other mitigation is required.
Description
A Linux kernel vulnerability in the netfilter nf_tables_offload component caused WARN_ON_ONCE warnings on memory allocation failures (-ENOMEM) during rollback in nft_flow_rule_offload_abort(). This was a false positive warning triggered under low-memory conditions, not indicating a kernel bug. The issue has been fixed by changing the warning condition to exclude expected -ENOMEM errors.
References
- git.kernel.org/stable/c/2319033c4bf8bdb275a9e4e1f7af9bf8a457ad79 (opens in a new tab)
- git.kernel.org/stable/c/6ee3803c22b72508c5baf1e5aecb21301b714be0 (opens in a new tab)
- git.kernel.org/stable/c/09bda4b6df222fd1819e8f188c3a6e90caf546d3 (opens in a new tab)
- git.kernel.org/stable/c/17c132e18ca5d1641ddbaed8d0e6ecfd1d38fa0b (opens in a new tab)
- git.kernel.org/stable/c/7ce9851be6f2b019e96e105a9de99715aec6deb4 (opens in a new tab)
- git.kernel.org/stable/c/4a923fe60939a194777bc605036ce2147ab00c9d (opens in a new tab)
- git.kernel.org/stable/c/c23620a0fa5b1d80399f894c41a9f78bc29d6235 (opens in a new tab)
- git.kernel.org/stable/c/d02f592064347e0c1e0d84f24941ad338838cc48 (opens in a new tab)