SB20250226442 - NULL pointer dereference in Linux kernel fbdev core driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226442
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2022-49070)
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.
References
- 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