#VU120466 NULL pointer dereference in Linux kernel - CVE-2022-50721
Published: December 26, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120466
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-2022-50721
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 adm_prep_slave_sg() function in drivers/dma/qcom/qcom_adm.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/5653bd0200944e5803fa8e32dc36aa49931312f9
- https://git.kernel.org/stable/c/9a041174c58a226e713f6cebd41eccec7a5cfa72
- https://git.kernel.org/stable/c/b9d2140c3badf4107973ad77c5a0ec3075705c85
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1