SB20260928416 - Insufficient Control Flow Management in Linux kernel gfs2
Published: September 28, 2026
Security Bulletin ID
SB20260928416
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Insufficient Control Flow Management (CVE-ID: CVE-2026-97520)
CWE-ID: CWE-691 - Insufficient Control Flow Management
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to modify data and cause a denial of service.
The vulnerability exists due to improper control flow management in gfs2_quota_init() when processing quota change entries. A remote attacker can exploit incorrect quota-change iterator progression to modify data and cause a denial of service.
User interaction is required.
Remediation
Install update from vendor's website.