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CVE-2026-68313
tipc: fix infinite loop in __tipc_nl_compat_dumpit
Overview
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.

Details
INFO

Published Date :

Aug. 10, 2026, 1:20 p.m.

Last Modified :

Aug. 17, 2026, 5:18 a.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-68313 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Fix an infinite loop in tipc by checking dumpit's return value.
  • Apply the kernel patch for tipc.
  • Update the Linux kernel.
  • Restart affected services.
  • Monitor system stability.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-68313.

URL Resource
https://git.kernel.org/stable/c/1ab78af2140189b735b8d3b889b0284128cb2013
https://git.kernel.org/stable/c/22f8aa35964e8f2ab026578f45befc9605fd1b28
https://git.kernel.org/stable/c/b8f3b8efa5f99081b14de1a7ffa68a81bf01bd48
https://git.kernel.org/stable/c/e740e90ca8e7f70d9eac1aa31a8b3e0e4d32b2ef
https://git.kernel.org/stable/c/f9c669d9f4cac832fe31193cdbc24c6a9d99398b
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-68313 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-68313 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-68313 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-68313 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 17, 2026

    Action Type Old Value New Value
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': 'f9c669d9f4cac832fe31193cdbc24c6a9d99398b', 'versionType': 'git'}, {'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': '1ab78af2140189b735b8d3b889b0284128cb2013', 'versionType': 'git'}, {'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': 'e740e90ca8e7f70d9eac1aa31a8b3e0e4d32b2ef', 'versionType': 'git'}, {'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': 'b8f3b8efa5f99081b14de1a7ffa68a81bf01bd48', 'versionType': 'git'}, {'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': '22f8aa35964e8f2ab026578f45befc9605fd1b28', 'versionType': 'git'}], 'programFiles': ['net/tipc/netlink_compat.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/tipc/netlink_compat.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': 'f9c669d9f4cac832fe31193cdbc24c6a9d99398b', 'versionType': 'git'}, {'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': '1ab78af2140189b735b8d3b889b0284128cb2013', 'versionType': 'git'}, {'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': 'e740e90ca8e7f70d9eac1aa31a8b3e0e4d32b2ef', 'versionType': 'git'}, {'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': 'b8f3b8efa5f99081b14de1a7ffa68a81bf01bd48', 'versionType': 'git'}, {'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': '22f8aa35964e8f2ab026578f45befc9605fd1b28', 'versionType': 'git'}], 'programFiles': ['net/tipc/netlink_compat.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/tipc/netlink_compat.c'], 'defaultStatus': 'affected'}]
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 10, 2026

    Action Type Old Value New Value
    Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': 'f9c669d9f4cac832fe31193cdbc24c6a9d99398b', 'versionType': 'git'}, {'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': '1ab78af2140189b735b8d3b889b0284128cb2013', 'versionType': 'git'}, {'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': 'e740e90ca8e7f70d9eac1aa31a8b3e0e4d32b2ef', 'versionType': 'git'}, {'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': 'b8f3b8efa5f99081b14de1a7ffa68a81bf01bd48', 'versionType': 'git'}, {'status': 'affected', 'version': 'd0796d1ef63deb38147729664691ba3090930b26', 'lessThan': '22f8aa35964e8f2ab026578f45befc9605fd1b28', 'versionType': 'git'}], 'programFiles': ['net/tipc/netlink_compat.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/tipc/netlink_compat.c'], 'defaultStatus': 'affected'}]
    Added 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.
    Added Reference https://git.kernel.org/stable/c/1ab78af2140189b735b8d3b889b0284128cb2013
    Added Reference https://git.kernel.org/stable/c/22f8aa35964e8f2ab026578f45befc9605fd1b28
    Added Reference https://git.kernel.org/stable/c/b8f3b8efa5f99081b14de1a7ffa68a81bf01bd48
    Added Reference https://git.kernel.org/stable/c/e740e90ca8e7f70d9eac1aa31a8b3e0e4d32b2ef
    Added Reference https://git.kernel.org/stable/c/f9c669d9f4cac832fe31193cdbc24c6a9d99398b
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
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