CVE-2024-38622 drm/msm/dpu: Add callback function pointer check before its call
A null pointer dereference in the Linux kernel's DPU driver can cause a system crash, requiring a patch to add proper callback checks.
- 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-2024-38622?
CVE-2024-38622 is a medium-severity vulnerability in Linux kernel, published on 21 Jun 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/msm/dpu: Add callback function pointer check before its call
In dpu_core_irq_callback_handler() callback function pointer is compared to NULL, but then callback function is unconditionally called by this pointer. Fix this bug by adding conditional return.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Patchwork: https://patchwork.freedesktop.org/patch/588237/
Weakness: CWE-476
Which versions are affected by CVE-2024-38622?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-38622?
Apply the vendor's patch.
Is CVE-2024-38622 being exploited?
There is no known exploitation of CVE-2024-38622 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-38622, DEBIAN-CVE-2024-38622, GHSA-243h-qcm4-f6g8, ROOT-OS-DEBIAN-12-CVE-2024-38622, UBUNTU-CVE-2024-38622.