Vulnerability 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.
CVSS Score
HIGH
References
- https://git.kernel.org/stable/c/038406abde0d0883419ec89425ea941ec8bbef95
- https://git.kernel.org/stable/c/266f936db83aee6ca6473bbb06259bda52bf4fc3
- https://git.kernel.org/stable/c/3ad673e7139cf214afd24321a829aad6575f4163
- https://git.kernel.org/stable/c/4cf6a7ebbf8787393b158b2cc341723e5bebc4a8
- https://git.kernel.org/stable/c/fb4293173db2d474d8fbc0e5ecf4943e6df2b40e
FAQ
What is CVE-2026-72304?
CVE-2026-72304 is a vulnerability with a CVSS score of 7.8 (HIGH). 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->siz...
How severe is CVE-2026-72304?
CVE-2026-72304 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-72304?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.