CVE-2022-48990 drm/amdgpu: fix use-after-free during gpu recovery
A use-after-free vulnerability in the Linux kernel's amdgpu driver during GPU recovery allows attackers to potentially execute code or cause a system crash.
- 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-2022-48990?
CVE-2022-48990 is a high-severity use after free 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/amdgpu: fix use-after-free during gpu recovery
[Why] [ 754.862560] refcount_t: underflow; use-after-free. [ 754.862898] Call Trace: [ 754.862903] <TASK> [ 754.862913] amdgpu_job_free_cb+0xc2/0xe1 [amdgpu] [ 754.863543] drm_sched_main.cold+0x34/0x39 [amd_sched]
[How] The fw_fence may be not init, check whether dma_fence_init is performed before job free
Weakness: CWE-416
Which versions are affected by CVE-2022-48990?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-48990?
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-2022-48990 being exploited?
There is no known exploitation of CVE-2022-48990 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-51348, DEBIAN-CVE-2022-48990, GHSA-h539-fm3j-34j4, ROOT-OS-UBUNTU-2204-CVE-2022-48990, UBUNTU-CVE-2022-48990.