CVE-2026-23078
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.15% probability · 4th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/27049f50be9f5ae3a62d272128ce0b381cb26a24Patch
- https://git.kernel.org/stable/c/31a3eba5c265a763260976674a22851e83128f6dPatch
- https://git.kernel.org/stable/c/51049f6e3f05d70660e2458ad3bb302a3721b751Patch
- https://git.kernel.org/stable/c/6f5c69f72e50d51be3a8c028ae7eda42c82902cbPatch
- https://git.kernel.org/stable/c/91a756d22f0482eac5bedb113c8922f90b254449Patch
- https://git.kernel.org/stable/c/d5e80d1f97ae55bcea1426f551e4419245b41b9cPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.