CVE-2025-68725: Linux kernel · bpf: Do not let BPF test infra emit invalid GSO types to stack
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in fbea4c63b5385588cb44ab21f91e55e33c719a54 : update Linux kernel when convenient.
Data as of 10 Nov 2026, 13:18 UTC
Rated Low by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
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, 2026-06-10.
- Patch
- Available – fixed in fbea4c63b5385588cb44ab21f91e55e33c719a54, e0ffb64a2d72c6705b4a4c9efef600409f7e98a0, bb7902ed7d7f6d6a7c6c4dc25410d6127ce1085f +4
Exploitation evidence
Disclosed: evidence found.
CVE published 24 Dec 2025
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 10 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 Linux kernel versions after 5.6. Users should update to a fixed kernel version containing the commits listed in establishedFacts.fixedVersions. Since this vulnerability is limited to BPF test infrastructure emitting invalid GSO types, normal users are unlikely to be affected unless running such test programs.
Description
A vulnerability in the Linux kernel's BPF test infrastructure allowed emission of invalid Generic Segmentation Offload (GSO) types to the network stack. This could trigger warnings and disable GSO-related features due to malformed GSO properties. The issue was fixed by rejecting such packets at the point where BPF test infrastructure could emit them.
References
- git.kernel.org/stable/c/bb7902ed7d7f6d6a7c6c4dc25410d6127ce1085f (opens in a new tab)
- git.kernel.org/stable/c/e0ffb64a2d72c6705b4a4c9efef600409f7e98a0 (opens in a new tab)
- git.kernel.org/stable/c/768376ece7036ecb8604961793a1b72afe6345dd (opens in a new tab)
- git.kernel.org/stable/c/8670b53b8ee91f028f7240531064020b7413c461 (opens in a new tab)
- git.kernel.org/stable/c/0f3a60869ca22024dfb9c6fce412b0c70cb4ea36 (opens in a new tab)
- git.kernel.org/stable/c/fbea4c63b5385588cb44ab21f91e55e33c719a54 (opens in a new tab)
- git.kernel.org/stable/c/04a899573fb87273a656f178b5f920c505f68875 (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-019113.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-457936.html (opens in a new tab)