SB20260918135 - Improper resource shutdown or release in Linux kernel firmware arm_scmi driver
Published: September 18, 2026
Security Bulletin ID
SB20260918135
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
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-2026-93089)
CWE-ID: CWE-404 - Improper Resource Shutdown or Release
CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local privileged user to cause resource leaks.
The vulnerability exists due to improper resource shutdown or release in the SCMI transport channel setup error-handling path when an IDR insertion fails after transport channel setup succeeds. A local privileged user can initiate transport channel setup to cause resource leaks.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/ae7980c9af698d0a7e6790d49249abc71f0fc304
- https://git.kernel.org/stable/c/d72e7e5f24687c0490aabf317653caffe0447aeb
- https://git.kernel.org/stable/c/d7c60c0fe2bd452b56fe07947842d64da61b7290
- https://git.kernel.org/stable/c/de0a4c103740cf54cf77370d47e03c9aa51aa5ee
- https://git.kernel.org/stable/c/fbaebd380caa4e1cec9306ca00231da6518a123f