SB20250620154 - Integer underflow in Linux kernel drm sun4i driver
Published: June 20, 2025 Updated: June 21, 2025
Security Bulletin ID
SB20250620154
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Integer underflow (CVE-ID: CVE-2022-50036)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer underflow within the sun6i_dsi_setup_timings() function in drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/82a1356a933d8443139f8886f11b63c974a09a67
- https://git.kernel.org/stable/c/98e28de472ef248352f04f87e29e634ebb0ec240
- https://git.kernel.org/stable/c/a1e7908f78f5a7f53f8cd83c7dcdfec974c95f26
- https://git.kernel.org/stable/c/fb837f5b83461624e525727a8f4add14b201147e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.4