SB2026052960 - Improper resource shutdown or release in Linux kernel spi driver
Published: May 29, 2026
Security Bulletin ID
SB2026052960
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 resource shutdown or release (CVE-ID: CVE-2026-46225)
CWE-ID: CWE-404 - Improper Resource Shutdown or Release
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 resource shutdown or release in the rspi driver controller deregistration logic when the driver is unbound. A local user can trigger driver unbind while the controller is still registered to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/77defd64b405b680db73d767313fce770d368368
- https://git.kernel.org/stable/c/9944fa6726afb1e6eb7e2212764e7da0c97f2dcc
- https://git.kernel.org/stable/c/aee76c1dd189562c6678313caec12761f78a9ef3
- https://git.kernel.org/stable/c/c5090db1b31de3ef4db0cda7e822ab49cb572292
- https://git.kernel.org/stable/c/fee6abd9845c3edd217b0e429d09f764f9a5690e