SB2026052961 - Improper resource shutdown or release in Linux kernel spi driver
Published: May 29, 2026
Security Bulletin ID
SB2026052961
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-2026-46226)
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 fsl spi controller driver 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/562d954a144950ec2aa6a874ae657cb3fa31fe53
- https://git.kernel.org/stable/c/5750743a39c9d46ac9fcf57ffe000956da4942cf
- https://git.kernel.org/stable/c/9b7abfed4c3754062d1f3ffd452e65a38667f586
- https://git.kernel.org/stable/c/ca3195c7b88362d7c81efe685948663a9f9db0e6
- https://git.kernel.org/stable/c/e888308222375ac28bae69134dae288178718a96