Use-after-free in Linux kernel - CVE-2022-50828
Published: December 30, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120736
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-50828
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the zynqmp_get_clock_info() function in drivers/clk/zynqmp/clkc.c. A local user can escalate privileges on the system.
How to mitigate CVE-2022-50828
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/0a07b13af04d0db7325018aaa83b5ffe864790c9
- https://git.kernel.org/stable/c/5dbfcf7b080306b65d9f756fadf46c9495793750
- https://git.kernel.org/stable/c/bce41e4ac6f5ca3b22a07e8cdadc12044bbf9d3b
- https://git.kernel.org/stable/c/d66fea97671fcb516bd6d34bcc033f650ac7ee91
- https://git.kernel.org/stable/c/d9e2585c3bcecb1c83febad31b9f450e93d2509e
- https://git.kernel.org/stable/c/dd80fb2dbf1cd8751efbe4e53e54056f56a9b115
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.150
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.75
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.220
- 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