CVE-2026-68468: Linux kernel · mtd: virt-concat: free duplicate generated name
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 9 Nov 2026, 14:07 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 15 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 9 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinux-aws-6.14pkg:deb/ubuntu/linux-aws-6.14?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-aws-6.17pkg:deb/ubuntu/linux-aws-6.17?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-6.11pkg:deb/ubuntu/linux-azure-6.11?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-6.14pkg:deb/ubuntu/linux-azure-6.14?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-6.17pkg:deb/ubuntu/linux-azure-6.17?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-fde-6.14pkg:deb/ubuntu/linux-azure-fde-6.14?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available in the Linux kernel versions listed as affected. Users should upgrade to patched kernel versions to resolve the memory leak. Since this is a kernel-level fix, applying the updated kernel packages from the vendor or distribution is the recommended remediation.
Description
A vulnerability in the Linux kernel's mtd: virt-concat component causes a memory management issue where a duplicate generated name string is not freed properly. This occurs during MTD registration when the function mtd_virt_concat_create_join() encounters an already registered virtual concat name and skips freeing the newly allocated string. The issue has been resolved by ensuring the temporary name is freed before continuing.
References
- ubuntu.com/security/CVE-2026-68468 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-68468 (opens in a new tab)
- git.kernel.org/linus/caa0ecbeff4f7fbf70f22bd8ca598918bffb1b78 (opens in a new tab)
- git.kernel.org/stable/c/0e65079d28e5c461b6813ea5821be4dfff24ff63 (opens in a new tab)
- git.kernel.org/stable/c/caa0ecbeff4f7fbf70f22bd8ca598918bffb1b78 (opens in a new tab)