SB20260529100 - Exposure of Resource to Wrong Sphere in Linux kernel spi driver
Published: May 29, 2026
Security Bulletin ID
SB20260529100
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) Exposure of Resource to Wrong Sphere (CVE-ID: CVE-2026-46203)
CWE-ID: CWE-668 - Exposure of resource to wrong sphere
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 access to hardware registers in cadence-quadspi driver unbind handling when unbinding the driver while the controller is runtime suspended. A local user can trigger driver unbind to cause a denial of service.
Remediation
Install update from vendor's website.