SB20260912160 - Heap-based buffer overflow in Linux kernel intel-thc-hid intel-quickspi driver
Published: September 12, 2026
Security Bulletin ID
SB20260912160
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) Heap-based buffer overflow (CVE-ID: CVE-2026-89620)
CWE-ID: CWE-122 - Heap-based Buffer Overflow
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/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 a heap-based buffer overflow in write_cmd_to_txdma() of the intel-quickspi HID driver when handling an oversized hidraw SET_REPORT or SET_FEATURE ioctl. A local user can submit an oversized report to overflow the report buffer and cause a denial of service.
Remediation
Install update from vendor's website.