SB20260924109 - Unchecked Return Value in Linux kernel hpfs
Published: September 24, 2026
Security Bulletin ID
SB20260924109
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Unchecked Return Value (CVE-ID: CVE-2026-97486)
CWE-ID: CWE-252 - Unchecked Return Value
CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local privileged user to cause a denial of service.
The vulnerability exists due to an unchecked return value in the HPFS superblock mount handler when mounting an HPFS filesystem on a device with a block size greater than the page size. A local privileged user can mount the filesystem to trigger a kernel BUG condition and cause a denial of service.
Remediation
Install update from vendor's website.