Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-control: Validate size in snd_sof_update_control In snd_sof_update_control(), firmware-provided cdata->num_elems is checked against local_cdata->data->size but never against the actual allocation size. If local_cdata->data->size was previously set to an inconsistent value, the memcpy could write past the allocated buffer. Add a bounds check to ensure num_elems fits within the available space in the ipc_control_data allocation before copying.
References6
- git.kernel.org/stable/c/1dc25a3e06364f48c4ef06016852f8b82425151a
- git.kernel.org/stable/c/2a591bf6fd41fd14bdae689aafac4a9ee702c23c
- git.kernel.org/stable/c/390aa4c9339bb0ec0bc8d554e830faf93ca9d49e
- git.kernel.org/stable/c/d3abaedf6a58469610136d2dace1a85cddf7afcf
- git.kernel.org/stable/c/ecf67f1302f2080b4d241b973364aacda70ad740
- git.kernel.org/stable/c/ee781058cd4d71e4449f41cbe6a3b8c59daa2c51
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 6 · as of 11 November 2026
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