Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conncount: update last_gc only when GC has been performed Currently last_gc is being updated everytime a new connection is tracked, that means that it is updated even if a GC wasn't performed. With a sufficiently high packet rate, it is possible to always bypass the GC, causing the list to grow infinitely. Update the last_gc value only when a GC has been actually performed.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.19, < 6.1.161 |
References
- https://git.kernel.org/stable/c/26a82dce2beee39c43c109d9647e16f49cb02a35Patch
- https://git.kernel.org/stable/c/2c7c71113ed6d3e2f3aca4c088f22283016ff34fPatch
- https://git.kernel.org/stable/c/3cd717359e56f82f06cbf8279b47a7d79880c6f3Patch
- https://git.kernel.org/stable/c/7811ba452402d58628e68faedf38745b3d485e3cPatch
- https://git.kernel.org/stable/c/8bdafdf4900040a81422056cabe5e00a37bd101aPatch
- https://git.kernel.org/stable/c/9f45588993d7f115280fc726119ca86fba32a811Patch
- https://git.kernel.org/stable/c/c4cde57c8affdcca5bcff53a1047e15d268bdca1Patch
FAQ
What is CVE-2026-23139?
CVE-2026-23139 is a vulnerability with a CVSS score of 7.5 (HIGH). In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conncount: update last_gc only when GC has been performed Currently last_gc is being updated everytime a new connect...
How severe is CVE-2026-23139?
CVE-2026-23139 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-23139?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.