Out-of-bounds write in Linux kernel - CVE-2026-53172
Published: June 26, 2026
Vulnerability identifier: #VU135616
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-53172
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to corrupt kernel heap memory.
The vulnerability exists due to an out-of-bounds write in the ethosu command stream parser when processing a crafted NPU_SET_IFM_REGION command from userspace. A local user can supply a region index greater than 7 to corrupt kernel heap memory.
The issue is caused by using the region index directly as an array subscript into the allocated info structure.
How to mitigate CVE-2026-53172
Install security update from vendor's repository.