SB2026091974 - Memory leak in Linux kernel nfs blocklayout
Published: September 19, 2026
Security Bulletin ID
SB2026091974
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote 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-2026-90150)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause device resource leaks.
The vulnerability exists due to improper resource cleanup in the pNFS block layout device parsing and cleanup routines when handling child-device parsing failures. A remote attacker can trigger a child-device parsing failure to cause device resource leaks.
Remediation
Install update from vendor's website.