SB20260918443 - Use-after-free in Linux kernel nvme host driver
Published: September 18, 2026
Security Bulletin ID
SB20260918443
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) Use-after-free (CVE-ID: CVE-2026-90229)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a use-after-free in the Apple NVMe driver's admin queue during controller removal when a controller fails to initialize and is immediately torn down. A local user can trigger the affected controller removal sequence to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/215d1682f0bae495f3f9cf692b358116b7a18602
- https://git.kernel.org/stable/c/5f6f4777b7a8676251139dbfbcdec3cb578f0e40
- https://git.kernel.org/stable/c/87d5b9864c8118d26f54de4b66d2bddf2c659272
- https://git.kernel.org/stable/c/bf51e306e3dcffd1a63ef09a7a39d28f3578dd2d
- https://git.kernel.org/stable/c/c11685ee4eedc70f738b117a4a8c0fbe84cd79b3