Integer underflow in Linux kernel - CVE-2022-50036
Published: June 20, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111625
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-50036
CWE-ID: CWE-191
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2022-50036
Install update from vendor's repository.
Sources
- 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