SB20260827118 - Improper Initialization in Linux kernel clk spacemit driver
Published: August 27, 2026
Security Bulletin ID
SB20260827118
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) Improper Initialization (CVE-ID: CVE-2026-80523)
CWE-ID: CWE-665 - Improper Initialization
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper initialization in the hdma clock configuration in drivers/clk/spacemit/ccu-k3.c when accessing the internal TCM path of the X100 RISC-V core. A remote attacker can trigger a page fault through vector instruction access to cause a denial of service.
The issue can cause the Linux system to hang.
Remediation
Install update from vendor's website.