CVE-2025-38249

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3() In snd_usb_get_audioformat_uac3(), the length value returned from snd_usb_ctl_msg() is used directly for memory allocation without validation. This length is controlled by the USB device. The allocated buffer is cast to a uac3_cluster_header_descriptor and its fields are accessed without verifying that the buffer is large enough. If the device returns a smaller than expected length, this leads to an out-of-bounds read. Add a length check to ensure the buffer is large enough for uac3_cluster_header_descriptor.

• linux linux kernel (>= 4.17 < 5.4.296) • linux linux kernel (>= 5.5 < 5.10.240) • linux linux kernel (>= 5.11 < 5.15.187) • linux linux kernel (>= 5.16 < 6.1.143) • linux linux kernel (>= 6.2 < 6.6.96) • linux linux kernel (>= 6.7 < 6.12.36) • linux linux kernel (>= 6.13 < 6.15.5) • linux linux kernel 6.16 • debian debian linux 11.0