CVE-2026-23078
ALSA: scarlett2: Fix buffer overflow in config retrieval
- State
- Published
- Severity
- Not scored
- Published
- Feb 4, 2026
- Updated
- May 11, 2026
- Reserved
- Jan 13, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
ALSA: scarlett2: Fix buffer overflow in config retrieval
The scarlett2_usb_get_config() function has a logic error in the endianness conversion code that can cause buffer overflows when count > 1.
The code checks `if (size == 2)` where `size` is the total buffer size in bytes, then loops `count` times treating each element as u16 (2 bytes). This causes the loop to access `count * 2` bytes when the buffer only has `size` bytes allocated.
Fix by checking the element size (config_item->size) instead of the total buffer size. This ensures the endianness conversion matches the actual element type.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
- https://git.kernel.org/stable/c/d5e80d1f97ae55bcea1426f551e4419245b41b9c
- https://git.kernel.org/stable/c/51049f6e3f05d70660e2458ad3bb302a3721b751
- https://git.kernel.org/stable/c/91a756d22f0482eac5bedb113c8922f90b254449
- https://git.kernel.org/stable/c/27049f50be9f5ae3a62d272128ce0b381cb26a24
- https://git.kernel.org/stable/c/31a3eba5c265a763260976674a22851e83128f6d
- https://git.kernel.org/stable/c/6f5c69f72e50d51be3a8c028ae7eda42c82902cb
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