SB20260928404 - Incorrect calculation in Linux kernel f2fs
Published: September 28, 2026 Updated: September 30, 2026
Security Bulletin ID
SB20260928404
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Incorrect calculation (CVE-ID: CVE-2026-97534)
CWE-ID: CWE-682 - Incorrect Calculation
CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to incorrect free-section accounting in free_segment_range() when garbage collection migrates data from a truncated range. A local user can trigger garbage collection during range truncation to cause a denial of service.
Exploitation requires limited available filesystem space.
Remediation
Install update from vendor's website.