SB20260912171 - Use of uninitialized resource in Linux kernel ntfs3
Published: September 12, 2026
Security Bulletin ID
SB20260912171
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) Use of uninitialized resource (CVE-ID: CVE-2026-89616)
CWE-ID: CWE-908 - Use of Uninitialized Resource
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to improper initialization in ni_read_frame() when reading a crafted compressed NTFS file. A local user can trigger partial LZNT decompression to disclose sensitive information.
Disclosed data can include recently freed kernel page memory and kernel pointers.
Remediation
Install update from vendor's website.