Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-08-15T00:00:00 kernel: ASoC: SOF: ipc3-control: Use overflow checks in control_update size calc 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CWE-787

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-control: Use overflow checks in control_update size calc In sof_ipc3_control_update(), the expected_size calculation uses firmware-provided cdata->num_elems in arithmetic that could overflow on 32-bit platforms, wrapping to a small value. This would allow the cdata->rhdr.hdr.size comparison to pass with mismatched sizes, potentially leading to out-of-bounds access in snd_sof_update_control. Use check_mul_overflow() and check_add_overflow() to detect and reject overflowed size calculations.

A flaw was found in the Linux kernel, specifically within the ASoC Sound Open Firmware (SOF) component. An integer overflow vulnerability exists in the `sof_ipc3_control_update()` function when calculating an expected size based on firmware-provided data on 32-bit systems. This flaw can lead to memory corruption, where the system attempts to write data beyond its allocated buffer. Such an issue could potentially allow a local attacker to gain elevated privileges or cause the system to crash, leading to a denial of service.

Red Hat Enterprise Linux 10 Fix deferred kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Fix deferred kernel Red Hat Enterprise Linux 8 Fix deferred kernel-rt Red Hat Enterprise Linux 9 Fix deferred kernel Red Hat Enterprise Linux 9 Fix deferred kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-72302 https://nvd.nist.gov/vuln/detail/CVE-2026-72302 https://lore.kernel.org/linux-cve-announce/2026081502-CVE-2026-72302-7b7f@gregkh/T