Integer overflow in Linux kernel - CVE-2026-72302

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU143146

Integer overflow in Linux kernel - CVE-2026-72302

Published: August 16, 2026


Vulnerability identifier: #VU143146
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-2026-72302
CWE-ID: CWE-190
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to cause an out-of-bounds access.

The vulnerability exists due to integer overflow in sof_ipc3_control_update() in sound/soc/sof/ipc3-control.c when processing firmware-provided control data. A local user can provide a crafted num_elems value to trigger size miscalculation and cause an out-of-bounds access.

The issue occurs on 32-bit platforms where the size calculation can wrap to a smaller value, allowing a mismatched size check to pass before snd_sof_update_control is reached.


Affected software

Linux kernel
Ubuntu
linux-gcp-7.0 (Ubuntu package)
linux-azure-7.0 (Ubuntu package)

How to mitigate CVE-2026-72302

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
linux-gcp-7.0 (Ubuntu package) - addressed in versions 7.0.0-38.38~24.04.4, 7.0.0-1013.13~24.04.1, 7.0.0-1014.14~24.04.1
linux-azure-7.0 (Ubuntu package) - addressed in versions 7.0.0-1016.16~24.04.1, 7.0.0-1017.17~24.04.1

External References

Related Security Bulletins