CVE-2024-49896: drm/amd/display: Check stream before comparing them
First published: Mon Oct 21 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | <5.10.227 | |
| Linux kernel | >=5.11<5.15.168 | |
| Linux kernel | >=5.16<6.1.113 | |
| Linux kernel | >=6.2<6.6.55 | |
| Linux kernel | >=6.7<6.10.14 | |
| Linux kernel | >=6.11<6.11.3 | |
| Linux Kernel | <5.10.227 | |
| Linux Kernel | >=5.11<5.15.168 | |
| Linux Kernel | >=5.16<6.1.113 | |
| Linux Kernel | >=6.2<6.6.55 | |
| Linux Kernel | >=6.7<6.10.14 | |
| Linux Kernel | >=6.11<6.11.3 | |
| debian/linux | <=5.10.223-1 | 5.10.234-1 6.1.129-1 6.1.128-1 6.12.21-1 |
| debian/linux-6.1 | 6.1.129-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/0167d570f6a0b38689c4a0e50bf79c518d827500
- https://git.kernel.org/stable/c/14db8692afe1aa2143b673856bb603713d8ea93f
- https://git.kernel.org/stable/c/35ff747c86767937ee1e0ca987545b7eed7a0810
- https://git.kernel.org/stable/c/3944d226f55235a960d8f1135927f95e9801be12
- https://git.kernel.org/stable/c/42d31a33643813cce55ee1ebbad3a2d0d24a08e0
- https://git.kernel.org/stable/c/471c53350ab83e47a2a117c2738ce0363785976e
- https://git.kernel.org/stable/c/5b4b13e678b15975055f4ff1ce4cf0ce4c19b6c4
- https://git.kernel.org/stable/c/e41a291e1bef1153bba091b6580ecc7affc53c82
- https://git.kernel.org/stable/c/e8da54b7f8a17e44e67ea6d1037f35450af28115
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49896
- https://nvd.nist.gov/vuln/detail/CVE-2024-49896
- https://launchpad.net/bugs/cve/CVE-2024-49896
- https://security-tracker.debian.org/tracker/CVE-2024-49896
- https://ubuntu.com/security/CVE-2024-49896
- https://git.kernel.org/linus/35ff747c86767937ee1e0ca987545b7eed7a0810
Frequently Asked Questions
What is the severity of CVE-2024-49896?
CVE-2024-49896 has a medium severity rating due to potential null dereference vulnerabilities.
How do I fix CVE-2024-49896?
To fix CVE-2024-49896, upgrade to a Linux kernel version that has patched the issue, such as 6.1.123 or newer.
What systems are affected by CVE-2024-49896?
CVE-2024-49896 affects various versions of the Linux kernel from 5.10.223 up to 6.10.14.
Is there a specific patch for CVE-2024-49896?
Yes, the patch for CVE-2024-49896 can be found in the relevant Linux kernel updates post the vulnerability announcement.
What are the potential consequences of CVE-2024-49896?
The potential consequences of CVE-2024-49896 include system crashes or instability due to dereferencing null pointers.
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