CVE-2022-49489 drm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm runtime resume
A use-after-free vulnerability in the Linux kernel's DPU driver can cause a system crash during power management resume.
- 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-2022-49489?
CVE-2022-49489 is a high-severity use after free vulnerability in Linux kernel, published on 26 Feb 2025. 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/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm runtime resume
BUG: Unable to handle kernel paging request at virtual address 006b6b6b6b6b6be3
Call trace: dpu_vbif_init_memtypes+0x40/0xb8 dpu_runtime_resume+0xcc/0x1c0 pm_generic_runtime_resume+0x30/0x44 __genpd_runtime_resume+0x68/0x7c genpd_runtime_resume+0x134/0x258 __rpm_callback+0x98/0x138 rpm_callback+0x30/0x88 rpm_resume+0x36c/0x49c __pm_runtime_resume+0x80/0xb0 dpu_core_irq_uninstall+0x30/0xb0 dpu_irq_uninstall+0x18/0x24 msm_drm_uninit+0xd8/0x16c
Patchwork: https://patchwork.freedesktop.org/patch/483255/ [DB: fixed Fixes tag]
Weakness: CWE-416
Which versions are affected by CVE-2022-49489?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49489?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2022-49489 being exploited?
There is no known exploitation of CVE-2022-49489 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-49489, GHSA-5wpm-mmfv-62g9, UBUNTU-CVE-2022-49489.