CVE-2024-44940: Linux kernel · fou: remove warn in gue_gro_receive on unsupported protocol
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High · fixed in 4.4.0-1137.143 : patch Linux kernel soon.
Data as of 26 Oct 2026, 23:28 UTC
- Patch
- Available – fixed in 4.4.0-1137.143, 4.15.0-1182.197~14.04.1, 4.4.0-260.294~14.04.1 +93
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 26 Aug 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Patches and advisories
- ubuntu.com/security/notices/USN-7069-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7069-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7110-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7154-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7155-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7156-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7159-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7159-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7166-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7166-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7159-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7159-4 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gkeoppkg:deb/ubuntu/linux-gkeop?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
In the Linux kernel, the following vulnerability has been resolved: fou: remove warn in gue_gro_receive on unsupported protocol Drop the WARN_ON_ONCE inn gue_gro_receive if the encapsulated type is not known or does not have a GRO handler. Such a packet is easily constructed. Syzbot generates them and sets off this warning. Remove the warning as it is expected and not actionable. The warning was previously reduced from WARN_ON to WARN_ON_ONCE in commit 270136613bf7 ("fou: Do WARN_ON_ONCE in gue_gro_receive for bad proto callbacks").
References
- ubuntu.com/security/CVE-2024-44940 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2024-44940 (opens in a new tab)
- git.kernel.org/linus/dd89a81d850fa9a65f67b4527c0e420d15bf836c (opens in a new tab)
- git.kernel.org/stable/c/3db4395332e7050ef9ddeb3052e6b5019f2a2a59 (opens in a new tab)
- git.kernel.org/stable/c/440ab7f97261bc28501636a13998e1b1946d2e79 (opens in a new tab)
- git.kernel.org/stable/c/dd89a81d850fa9a65f67b4527c0e420d15bf836c (opens in a new tab)
- ubuntu.com/security/notices/USN-7069-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7069-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7110-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7154-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7155-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7156-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7159-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7159-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7166-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7166-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7159-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7159-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-7166-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7154-2 (opens in a new tab)