#VU94451 Improper locking in Linux kernel - CVE-2022-48826
Published: July 17, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94451
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-2022-48826
CWE-ID: CWE-667
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 improper locking within the vc4_dsi_host_attach() and vc4_dsi_dev_remove() functions in drivers/gpu/drm/vc4/vc4_dsi.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/770d1ba9a8201ce9bee0946eb03746449b6f3b80
- https://git.kernel.org/stable/c/dddd832f35096fbc5004e3a7e58fb4d2cefb8deb
- https://git.kernel.org/stable/c/0a3d12ab5097b1d045e693412e6b366b7e82031b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.24
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17