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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
a062c8899fede2ab5660a817e9b602d3fa280a99 affected < 266f936db83aee6ca6473bbb06259bda52bf4fc3
a062c8899fede2ab5660a817e9b602d3fa280a99 affected < 4cf6a7ebbf8787393b158b2cc341723e5bebc4a8
a062c8899fede2ab5660a817e9b602d3fa280a99 affected < fb4293173db2d474d8fbc0e5ecf4943e6df2b40e
a062c8899fede2ab5660a817e9b602d3fa280a99 affected < 038406abde0d0883419ec89425ea941ec8bbef95
a062c8899fede2ab5660a817e9b602d3fa280a99 affected < 3ad673e7139cf214afd24321a829aad6575f4163
Linux Linux affected
Version Status Constraints
6.4 affected —
0 unaffected < 6.4
6.6.145 unaffected ≤ 6.6.*
6.12.97 unaffected ≤ 6.12.*
6.18.40 unaffected ≤ 6.18.*
7.1.5 unaffected ≤ 7.1.*
7.2-rc1 unaffected ≤ *

No data.

No data.

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/038406abde0d0883419ec89425ea941ec8bbef95 cve-icon cve-icon
https://git.kernel.org/stable/c/266f936db83aee6ca6473bbb06259bda52bf4fc3 cve-icon cve-icon
https://git.kernel.org/stable/c/3ad673e7139cf214afd24321a829aad6575f4163 cve-icon cve-icon
https://git.kernel.org/stable/c/4cf6a7ebbf8787393b158b2cc341723e5bebc4a8 cve-icon cve-icon
https://git.kernel.org/stable/c/fb4293173db2d474d8fbc0e5ecf4943e6df2b40e cve-icon cve-icon
History

Sat, 15 Aug 2026 06:00:00 +0000

Type Values Removed Values Added
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.
Title ASoC: SOF: ipc4-control: Fix TOCTOU in sof_ipc4_bytes_put
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-15T05:55:22.290Z

Reserved: 2026-08-09T03:40:39.918Z

Link: CVE-2026-72304

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-15T06:22:03.120

Modified: 2026-08-15T06:22:03.120

Link: CVE-2026-72304

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.