CVE-2026-72304

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.

Score

CVSS 3.1 7.8 High

Status

Received - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-08-15

Last modified

2026-10-16

Affected products

• Linux Kernel (Linux)

References

• https://git.kernel.org/stable/c/266f936db83aee6ca6473bbb06259bda52bf4fc3
• https://git.kernel.org/stable/c/4cf6a7ebbf8787393b158b2cc341723e5bebc4a8
• https://git.kernel.org/stable/c/fb4293173db2d474d8fbc0e5ecf4943e6df2b40e
• https://git.kernel.org/stable/c/038406abde0d0883419ec89425ea941ec8bbef95
• https://git.kernel.org/stable/c/3ad673e7139cf214afd24321a829aad6575f4163