Insufficient Control Flow Management in Linux kernel - CVE-2026-97520
Published: September 28, 2026
Vulnerability identifier: #VU152687
CSH Severity: High
CVSS v4: 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]
CVE-ID: CVE-2026-97520
CWE-ID: CWE-691
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Linux kernel
How to mitigate CVE-2026-97520
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3