CVE-2026-72304

high

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc4-control: Fix TOCTOU in sof_ipc4_bytes_put In sof_ipc4_bytes_put(), the copy size is derived from the old data->size in the buffer rather than the incoming new data's size field from ucontrol. If the new data has a different size, the copy uses the wrong length: it may truncate valid data or copy stale bytes. Fix by validating and using the incoming data's sof_abi_hdr.size from ucontrol before copying.

References

https://git.kernel.org/stable/c/fb4293173db2d474d8fbc0e5ecf4943e6df2b40e

https://git.kernel.org/stable/c/4cf6a7ebbf8787393b158b2cc341723e5bebc4a8

https://git.kernel.org/stable/c/3ad673e7139cf214afd24321a829aad6575f4163

https://git.kernel.org/stable/c/266f936db83aee6ca6473bbb06259bda52bf4fc3

https://git.kernel.org/stable/c/038406abde0d0883419ec89425ea941ec8bbef95

Details

Source: Mitre, NVD

Published: 2026-08-15

Updated: 2026-08-17

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00209