#VU117603 Buffer overflow in Linux kernel - CVE-2022-50570
Published: October 23, 2025 / Updated: October 26, 2025
Vulnerability identifier: #VU117603
Vulnerability risk: Low
CVSSv4.0: 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-2022-50570
CWE-ID: CWE-119
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 escalate privileges on the system.
The vulnerability exists due to memory corruption within the cros_ec_chardev_ioctl_readmem() function in drivers/platform/chrome/cros_ec_chardev.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/0c2e18924504208644d18415667895a4ac54cf2a
- https://git.kernel.org/stable/c/868fc93b615b9f6c2b0b1894536618fa6cd66acc
- https://git.kernel.org/stable/c/8a07b45fd3c2dda24fad43639be5335a4595196a
- https://git.kernel.org/stable/c/e548f9503c4b3292a60a63fe77dccea62999a35a
- https://git.kernel.org/stable/c/f143f1d9a8e5c6c9db3de81ca270191226fcce36
- https://git.kernel.org/stable/c/fd1d3b265784a2243fcaef06aebfb2f8ee733cec
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.75