CVE-2025-39935
ASoC: codec: sma1307: Fix memory corruption in sma1307_setting_loaded()
- State
- Published
- Severity
- 7.8 High
- Published
- Oct 4, 2025
- Updated
- Aug 5, 2026
- Reserved
- Apr 16, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
ASoC: codec: sma1307: Fix memory corruption in sma1307_setting_loaded()
The sma1307->set.header_size is how many integers are in the header (there are 8 of them) but instead of allocating space of 8 integers we allocate 8 bytes. This leads to memory corruption when we copy data it on the next line:
memcpy(sma1307->set.header, data, sma1307->set.header_size * sizeof(int));
Also since we're immediately copying over the memory in ->set.header, there is no need to zero it in the allocator. Use devm_kmalloc_array() to allocate the memory instead.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
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