#VU94436 NULL pointer dereference in Linux kernel - CVE-2022-48843
Published: July 17, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94436
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-2022-48843
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 EXPORT_SYMBOL() function in drivers/gpu/drm/drm_connector.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/941e8bcd2b2ba95490738e33dfeca27168452779
- https://git.kernel.org/stable/c/0ba557d330946c23559aaea2d51ea649fdeca98a
- https://git.kernel.org/stable/c/3534c5c005ef99a1804ed50b8a72cdae254cabb5
- https://git.kernel.org/stable/c/85271e92ae4f13aa679acaa6cf76b3c36bcb7bab
- https://git.kernel.org/stable/c/62929726ef0ec72cbbe9440c5d125d4278b99894
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.107
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.30
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.186