#VU104624 NULL pointer dereference in Linux kernel - CVE-2022-49070
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104624
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-2022-49070
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 do_remove_conflicting_framebuffers() function in drivers/video/fbdev/core/fbmem.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/0f525289ff0ddeb380813bd81e0f9bdaaa1c9078
- https://git.kernel.org/stable/c/2388f826cdc9af2651991adc0feb79de9bdf2232
- https://git.kernel.org/stable/c/de33df481545974ba47c46f05194e769e4307843
- https://git.kernel.org/stable/c/feed87ff122b1640c221d4dd559442ab2cd50bb1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3