Out-of-bounds read in Linux kernel - CVE-2026-72303
Published: August 16, 2026
Vulnerability identifier: #VU143129
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2026-72303
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to an out-of-bounds read in sof_ipc4_control_update in sound/soc/sof/ipc4-control.c when handling malformed module notifications. A local user can send a specially crafted notification payload with an invalid size to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-72303
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3