Answer in brief
CVE-2025-38249 records a High severity (CVSS 7.1) vulnerability in ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=9a2fe9b801f585baccf8352d82839dcd54b300cf <24ff7d465c4284529bbfa207757bffb6f44b6403 || >=9a2fe9b801f585baccf8352d82839dcd54b300cf <2dc1c3edf67abd30c757f8054a5da61927cdda21 || >=9a2fe9b801f585baccf8352d82839dcd54b300cf <c3fb926abe90d86f5e3055e0035f04d9892a118b || >=9a2fe9b801f585baccf8352d82839dcd54b300cf <6eb211788e1370af52a245d4d7da35c374c7b401 || >=9a2fe9b801f585baccf8352d82839dcd54b300cf <74fcb3852a2f579151ce80b9ed96cd916ba0d5d8 || >=9a2fe9b801f585baccf8352d82839dcd54b300cf <0ee87c2814deb5e42921281116ac3abcb326880b || >=9a2fe9b801f585baccf8352d82839dcd54b300cf <11e740dc1a2c8590eb7074b5c4ab921bb6224c36 || >=9a2fe9b801f585baccf8352d82839dcd54b300cf <fb4e2a6e8f28a3c0ad382e363aeb9cd822007b8a | 24ff7d465c4284529bbfa207757bffb6f44b6403, 2dc1c3edf67abd30c757f8054a5da61927cdda21, c3fb926abe90d86f5e3055e0035f04d9892a118b, 6eb211788e1370af52a245d4d7da35c374c7b401, 74fcb3852a2f579151ce80b9ed96cd916ba0d5d8, 0ee87c2814deb5e42921281116ac3abcb326880b, 11e740dc1a2c8590eb7074b5c4ab921bb6224c36, fb4e2a6e8f28a3c0ad382e363aeb9cd822007b8a |
| Linux/Linuxgeneric | 4.17 | Not reported |
Published upstream
Jul 9, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.