CVE-2026-23078
Unknown
Unknown - Not Provided
Buffer Overflow in Linux ALSA Scarlett2 USB Config Retrieval
Publication date: 2026-02-04
Last updated on: 2026-03-18
Assigner: kernel.org
Description
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.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | From 5.16 (inc) to 6.1.162 (exc) |
| linux | linux_kernel | From 6.2 (inc) to 6.6.122 (exc) |
| linux | linux_kernel | From 6.7 (inc) to 6.12.68 (exc) |
| linux | linux_kernel | From 6.13 (inc) to 6.18.8 (exc) |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | From 5.14 (inc) to 5.15.199 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
