CVE-2024-49971 drm/amd/display: Increase array size of dummy_boolean
A buffer overrun in the Linux kernel's AMD display driver allows attackers to cause memory corruption, potentially leading to system crashes or arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-49971?
CVE-2024-49971 is a medium-severity memory corruption vulnerability in Linux kernel, published on 21 Oct 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Increase array size of dummy_boolean
[WHY] dml2_core_shared_mode_support and dml_core_mode_support access the third element of dummy_boolean, i.e. hw_debug5 = &s->dummy_boolean[2], when dummy_boolean has size of 2. Any assignment to hw_debug5 causes an OVERRUN.
[HOW] Increase dummy_boolean's array size to 3.
This fixes 2 OVERRUN issues reported by Coverity.
Which versions are affected by CVE-2024-49971?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-49971?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-49971 being exploited?
There is no known exploitation of CVE-2024-49971 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-52053, AZL-52122, BELL-CVE-2024-49971, DEBIAN-CVE-2024-49971, GHSA-f7v4-xw4v-h9wq, ROOT-OS-UBUNTU-2204-CVE-2024-49971 and 1 more.