SB20260912383 - Memory leak in Linux kernel ntb driver
Published: September 12, 2026
Security Bulletin ID
SB20260912383
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) Memory leak (CVE-ID: CVE-2026-80987)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to leak memory.
The vulnerability exists due to improper error handling in the NTB transport transmit queue when submitting an oversized transmit buffer. A local user can submit an oversized transmit buffer to leak memory.
Remediation
Install update from vendor's website.