CVE-2026-23139
netfilter: nf_conncount: update last_gc only when GC has been performed
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
5.19
References 7
git.kernel.org
- stable/c/2c7c71113ed6d3e2f3aca4c088f22283016ff34f
- stable/c/c4cde57c8affdcca5bcff53a1047e15d268bdca1
- stable/c/9f45588993d7f115280fc726119ca86fba32a811
- stable/c/3cd717359e56f82f06cbf8279b47a7d79880c6f3
- stable/c/26a82dce2beee39c43c109d9647e16f49cb02a35
- stable/c/8bdafdf4900040a81422056cabe5e00a37bd101a
- stable/c/7811ba452402d58628e68faedf38745b3d485e3c