CVE-2026-72301ASoC: SOF: ipc3-control: Fix TOCTOU in bytes_put and bytes_get
Updated under an hour ago ()
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In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-control: Fix TOCTOU in bytes_put and bytes_get In sof_ipc3_bytes_put(), the size used for the memcpy is derived from the old data->size already in the buffer, not the incoming new data's size field. If the new data has a different size, the copy length is wrong: it may truncate valid data or copy stale bytes. Similarly, sof_ipc3_bytes_get() checks data->size against max_size without accounting for the sizeof(struct sof_ipc_ctrl_data) offset of the flex array within the allocation. Fix bytes_put to validate and use the incoming data's sof_abi_hdr.size from ucontrol before copying. Fix bytes_get to subtract sizeof(*cdata) from the bounds check to match the actual available space.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 544ac8858f249950b4d99c68e538cdc07300528f builds before 8bd715a9d882fe1993bb2aec5eff89fffa946592; 544ac8858f249950b4d99c68e538cdc07300528f builds before 0dce240145f47545d2e4b18c6d58033b83e1fd0e; from 544ac8858f249950b4d99c68e538cdc07300528f before ed4f758f34be4c32e02933ac4fa044589d9c1c16; 544ac8858f249950b4d99c68e538cdc07300528f builds before 0c4fbdaca225b97122b61b68c5353caa33a253c3; 544ac8858f249950b4d99c68e538cdc07300528f builds before 92f90917413bdd6078fefff6f6c83a07bf870b04; 544ac8858f249950b4d99c68e538cdc07300528f builds before 1f97760417b5faa60e9642fd0ed61eb17d0b1b39 | CNA record |
References
- https://git.kernel.org/stable/c/8bd715a9d882fe1993bb2aec5eff89fffa946592
- https://git.kernel.org/stable/c/0dce240145f47545d2e4b18c6d58033b83e1fd0e
- https://git.kernel.org/stable/c/ed4f758f34be4c32e02933ac4fa044589d9c1c16
- https://git.kernel.org/stable/c/0c4fbdaca225b97122b61b68c5353caa33a253c3
- https://git.kernel.org/stable/c/92f90917413bdd6078fefff6f6c83a07bf870b04
- https://git.kernel.org/stable/c/1f97760417b5faa60e9642fd0ed61eb17d0b1b39
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.