#VU120797 NULL pointer dereference in Linux kernel - CVE-2022-50842
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120797
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-50842
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the virtio_gpu_cmd_transfer_to_host_2d() function in drivers/gpu/drm/virtio/virtgpu_vq.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/36e133af33ea54193378b190cf92c47c12a43d34
- https://git.kernel.org/stable/c/989164305b933af06d69bb91044dafbd01025371
- https://git.kernel.org/stable/c/e473216b42aa1fd9fc6b94b608b42c210c655908
- https://git.kernel.org/stable/c/f122bcb34f1a4b02ef3d95058d8fd1316ea03785
- https://git.kernel.org/stable/c/f134f261d76ae3d5ecf68db642eaa746ceb84cfb
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.150