#VU92915 NULL pointer dereference in Linux kernel - CVE-2022-48756
Published: June 20, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU92915
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-2022-48756
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 msm_dsi_phy_driver_unregister() function in drivers/gpu/drm/msm/dsi/phy/dsi_phy.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/6d9f8ba28f3747ca0f910a363e46f1114856dbbe
- https://git.kernel.org/stable/c/ca63eeb70fcb53c42e1fe54e1735a54d8e7759fd
- https://git.kernel.org/stable/c/581317b1f001b7509041544d7019b75571daa100
- https://git.kernel.org/stable/c/79c0b5287ded74f4eacde4dfd8aa0a76cbd853b5
- https://git.kernel.org/stable/c/56480fb10b976581a363fd168dc2e4fbee87a1a7
- https://git.kernel.org/stable/c/2b7e7df1eacd280e561ede3e977853606871c951
- https://git.kernel.org/stable/c/5e761a2287234bc402ba7ef07129f5103bcd775c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.265
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.228
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.96
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.176