VulnerabilityPublished 10 Aug 2026Updated 6 Nov 2026

CVE-2026-68313: Linux kernel · tipc: fix infinite loop in __tipc_nl_compat_dumpit

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in f9c669d9f4cac832fe31193cdbc24c6a9d99398b : update Linux kernel when convenient.

Data as of 6 Nov 2026, 17:04 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

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 f9c669d9f4cac832fe31193cdbc24c6a9d99398b, e740e90ca8e7f70d9eac1aa31a8b3e0e4d32b2ef, b8f3b8efa5f99081b14de1a7ffa68a81bf01bd48 +5

Exploitation evidence

Disclosed: evidence found.
CVE published 10 Aug 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.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ d0796d1ef63deb38147729664691ba3090930b26, < f9c669d9f4cac832fe31193cdbc24c6a9d99398b	Fixed in f9c669d9f4cac832fe31193cdbc24c6a9d99398b
LinuxLinux	Affected ≥ d0796d1ef63deb38147729664691ba3090930b26, < e740e90ca8e7f70d9eac1aa31a8b3e0e4d32b2ef	Fixed in e740e90ca8e7f70d9eac1aa31a8b3e0e4d32b2ef
LinuxLinux	Affected ≥ d0796d1ef63deb38147729664691ba3090930b26, < b8f3b8efa5f99081b14de1a7ffa68a81bf01bd48	Fixed in b8f3b8efa5f99081b14de1a7ffa68a81bf01bd48
LinuxLinux	Affected ≥ d0796d1ef63deb38147729664691ba3090930b26, < 98d09766cee3182aae292886e2fef0cbe8dba537	Fixed in 98d09766cee3182aae292886e2fef0cbe8dba537
LinuxLinux	Affected ≥ d0796d1ef63deb38147729664691ba3090930b26, < 22f8aa35964e8f2ab026578f45befc9605fd1b28	Fixed in 22f8aa35964e8f2ab026578f45befc9605fd1b28
LinuxLinux	Affected ≥ d0796d1ef63deb38147729664691ba3090930b26, < 9cd8c88e1336ec0fbe02af1ddf2b52838d30fae4	Fixed in 9cd8c88e1336ec0fbe02af1ddf2b52838d30fae4

Description

In the Linux kernel, the following vulnerability has been resolved: tipc: fix infinite loop in __tipc_nl_compat_dumpit cmd->dumpit callback can return a negative errno, causing an infinite loop due to the while(len) condition. As the loop never terminates, genl_mutex is never released, and other tasks waiting on it starve in D state. Check dumpit's return value, propagate it and jump to err_out on error.

References

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