Integer overflow in Linux kernel - CVE-2026-53170
Published: June 26, 2026
Vulnerability identifier: #VU135614
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-53170
CWE-ID: CWE-190
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 bypass DMA bounds checks.
The vulnerability exists due to an integer overflow in dma_length() in the ethosu driver when processing DMA commands with an uninitialized length. A local user can omit the DMA length setup command and issue a DMA start command to bypass DMA bounds checks.
The issue can leave region_size[] as 0 and allow hardware DMA to proceed with stale physical addresses.
How to mitigate CVE-2026-53170
Install security update from vendor's repository.