CVE-2026-72301High· 7.8▾ TwilightIn 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 …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= 544ac8858f249950b4d99c68e538cdc07300528f < 8bd715a9d882fe1993bb2aec5eff89fffa946592Linux >= 544ac8858f249950b4d99c68e538cdc07300528f < 0dce240145f47545d2e4b18c6d58033b83e1fd0eLinux >= 544ac8858f249950b4d99c68e538cdc07300528f < ed4f758f34be4c32e02933ac4fa044589d9c1c16Linux >= 544ac8858f249950b4d99c68e538cdc07300528f < 0c4fbdaca225b97122b61b68c5353caa33a253c3Linux >= 544ac8858f249950b4d99c68e538cdc07300528f < 92f90917413bdd6078fefff6f6c83a07bf870b04Linux >= 544ac8858f249950b4d99c68e538cdc07300528f < 1f97760417b5faa60e9642fd0ed61eb17d0b1b39Linux 5.18Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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