VulnerabilityPublished 15 Aug 2026Updated 30 Oct 2026

CVE-2026-72106: Linux kernel · dm-ioctl: fix a possible overflow in list_version_get_info

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in e0f5842c4e2a7dbefb52a2dc6711789bc6963e55 : patch Linux kernel soon.

Data as of 30 Oct 2026, 13:33 UTC

Severity

High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Patch: Available – fixed in e0f5842c4e2a7dbefb52a2dc6711789bc6963e55, df50c24c6447c18886ed126d3d81cc7e155ea8b6, d61c12573ed9768690fdcb2bc38846a1bcb01358 +3

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 30 Oct 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 ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < e0f5842c4e2a7dbefb52a2dc6711789bc6963e55	Fixed in e0f5842c4e2a7dbefb52a2dc6711789bc6963e55
LinuxLinux	Affected ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < df50c24c6447c18886ed126d3d81cc7e155ea8b6	Fixed in df50c24c6447c18886ed126d3d81cc7e155ea8b6
LinuxLinux	Affected ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < d61c12573ed9768690fdcb2bc38846a1bcb01358	Fixed in d61c12573ed9768690fdcb2bc38846a1bcb01358
LinuxLinux	Affected ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 29536a9ff146d9bbd618959857ed2e691cda1d21	Fixed in 29536a9ff146d9bbd618959857ed2e691cda1d21
LinuxLinux	Affected ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 76c6f845dc0c614304a6e6ee619b552f97cf24b3	Fixed in 76c6f845dc0c614304a6e6ee619b552f97cf24b3
LinuxLinux	Affected ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 3cba74d3fb2c1890ffae019301227d1366f74907	Fixed in 3cba74d3fb2c1890ffae019301227d1366f74907

AI-suggested

A fix is available and has been applied in multiple Linux kernel commits. Users and administrators should update affected Linux kernel versions to the fixed releases identified by the commits (e.g., e0f5842c4e2a7dbefb52a2dc6711789bc6963e55 and others). No additional mitigation is required beyond applying the official patch.

Description

A buffer overflow vulnerability was identified and fixed in the Linux kernel's dm-ioctl component, specifically in the list_version_get_info function. The issue was caused by writing 16 bytes into a buffer sized for 12 bytes, leading to potential overflow. The fix involved correcting the size used for the copy operation to match the actual structure size, preventing overflow.

Impact

The buffer overflow could lead to memory corruption within the kernel, potentially causing system instability or enabling privilege escalation if exploited. However, there is no indication of known exploits in the wild. The impact is limited to affected kernel versions prior to the fix.

Summary

CVE-2026-72106 addresses a buffer overflow in the Linux kernel's dm-ioctl subsystem within the list_version_get_info function. The vulnerability arose because the code incorrectly used sizeof(tt->version) (12 bytes) when copying data, but wrote 16 bytes into the output buffer, overwriting adjacent memory. This was corrected by replacing the size argument with sizeof(struct dm_target_versions), ensuring the copy respects the actual buffer size. The flaw affects Linux kernel version 2.6.12 and was fixed in several subsequent commits.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 30 Oct 2026, 13:33 UTC

Technical details

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