SB20260918431 - Memory leak in Linux kernel nvme host driver
Published: September 18, 2026
Security Bulletin ID
SB20260918431
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Memory leak (CVE-ID: CVE-2026-90233)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper release of allocated resources in the NVMe PCI driver probe error path when a probe failure occurs after the admin tag set has been allocated. A local user can trigger a probe failure after the admin tag set is allocated to cause a denial of service.
The descriptor DMA pools are created per NUMA node.
Remediation
Install update from vendor's website.