SB20260507193 - Improper Initialization in Linux kernel mfd driver
Published: May 7, 2026
Security Bulletin ID
SB20260507193
CSH 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 vulnerability.
1) Improper Initialization (CVE-ID: CVE-2026-43160)
CWE-ID: CWE-665 - Improper Initialization
CVSSv4: 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
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper initialization in apple_smc_read() when sub-device probe functions invoke read operations. A local user can trigger access to the affected driver path to cause a denial of service.
The issue may result in occasional NULL pointer dereferences during probe-time reads.
Remediation
Install update from vendor's website.