CVE-2024-49923: drm/amd/display: Pass non-null to dcn20_validate_apply_pipe_split_flags
First published: Mon Oct 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Pass non-null to dcn20_validate_apply_pipe_split_flags [WHAT & HOW] "dcn20_validate_apply_pipe_split_flags" dereferences merge, and thus it cannot be a null pointer. Let's pass a valid pointer to avoid null dereference. This fixes 2 FORWARD_NULL issues reported by Coverity.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <6.10.14 | |
| Linux Kernel | >=6.11<6.11.3 | |
| debian/linux | <=5.10.223-1<=5.10.226-1<=6.1.123-1<=6.1.128-1 | 6.12.12-1 6.12.15-1 |
| <6.10.14 | ||
| >=6.11<6.11.3 |
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Reference Links
- https://git.kernel.org/stable/c/5559598742fb4538e4c51c48ef70563c49c2af23
- https://git.kernel.org/stable/c/85aa996ecfaa95d1e922867390502d23ce21b905
- https://git.kernel.org/stable/c/9a05270869f40c89f8d184fe2d37cb86e0d7e5f5
- https://launchpad.net/bugs/cve/CVE-2024-49923
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49923
- https://nvd.nist.gov/vuln/detail/CVE-2024-49923
- https://security-tracker.debian.org/tracker/CVE-2024-49923
- https://ubuntu.com/security/CVE-2024-49923
- https://git.kernel.org/linus/5559598742fb4538e4c51c48ef70563c49c2af23
- https://git.kernel.org/stable/c/39a580cd15397e102aaec25986ae5acf492f8930
Frequently Asked Questions
What is the severity of CVE-2024-49923?
CVE-2024-49923 has been classified with a high severity rating, indicating potential significant impact on affected systems.
How do I fix CVE-2024-49923?
To resolve CVE-2024-49923, you should upgrade your Linux kernel to versions 6.12.11-1 or 6.12.12-1 or apply any relevant patches available.
Which versions of the Linux kernel are affected by CVE-2024-49923?
CVE-2024-49923 affects Linux kernel versions up to 6.10.14 and those between 6.11.0 and 6.11.3.
Is CVE-2024-49923 remotely exploitable?
CVE-2024-49923 is not considered remotely exploitable, but it could allow local attackers to escalate privileges.
What can happen if CVE-2024-49923 is not addressed?
If CVE-2024-49923 is not addressed, attackers may exploit the vulnerability to cause system instability or gain unauthorized access.
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