CVE-2025-38249
ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3()
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ 9a2fe9b801f585baccf8352d82839dcd54b300cf; < 24ff7d465c4284529bbfa207757bffb6f44b6403 (affected, git) ≥ 9a2fe9b801f585baccf8352d82839dcd54b300cf; < 2dc1c3edf67abd30c757f8054a5da61927cdda21 (affected, git) ≥ 9a2fe9b801f585baccf8352d82839dcd54b300cf; < c3fb926abe90d86f5e3055e0035f04d9892a118b (affected, git) ≥ 9a2fe9b801f585baccf8352d82839dcd54b300cf; < 6eb211788e1370af52a245d4d7da35c374c7b401 (affected, git) ≥ 9a2fe9b801f585baccf8352d82839dcd54b300cf; < 74fcb3852a2f579151ce80b9ed96cd916ba0d5d8 (affected, git) ≥ 9a2fe9b801f585baccf8352d82839dcd54b300cf; < 0ee87c2814deb5e42921281116ac3abcb326880b (affected, git) ≥ 9a2fe9b801f585baccf8352d82839dcd54b300cf; < 11e740dc1a2c8590eb7074b5c4ab921bb6224c36 (affected, git) ≥ 9a2fe9b801f585baccf8352d82839dcd54b300cf; < fb4e2a6e8f28a3c0ad382e363aeb9cd822007b8a (affected, git) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
4.17 (affected) ≥ 0; < 4.17 (unaffected, semver) ≥ 5.4.296; ≤ 5.4.* (unaffected, semver) ≥ 5.10.240; ≤ 5.10.* (unaffected, semver) ≥ 5.15.187; ≤ 5.15.* (unaffected, semver) ≥ 6.1.143; ≤ 6.1.* (unaffected, semver) ≥ 6.6.96; ≤ 6.6.* (unaffected, semver) ≥ 6.12.36; ≤ 6.12.* (unaffected, semver) ≥ 6.15.5; ≤ 6.15.* (unaffected, semver) ≥ 6.16; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/24ff7d465c4284529bbfa207757bffb6f44b6403CNA: Linux
- https://git.kernel.org/stable/c/2dc1c3edf67abd30c757f8054a5da61927cdda21CNA: Linux
- https://git.kernel.org/stable/c/c3fb926abe90d86f5e3055e0035f04d9892a118bCNA: Linux
- https://git.kernel.org/stable/c/6eb211788e1370af52a245d4d7da35c374c7b401CNA: Linux
- https://git.kernel.org/stable/c/74fcb3852a2f579151ce80b9ed96cd916ba0d5d8CNA: Linux
- https://git.kernel.org/stable/c/0ee87c2814deb5e42921281116ac3abcb326880bCNA: Linux
- https://git.kernel.org/stable/c/11e740dc1a2c8590eb7074b5c4ab921bb6224c36CNA: Linux
- https://git.kernel.org/stable/c/fb4e2a6e8f28a3c0ad382e363aeb9cd822007b8aCNA: Linux
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlADP: CVE
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlADP: CVE
For agents and automation
Read public disclosures for free as Markdown or JSON. Compatible browsers also expose native WebMCP tools to search disclosures, read this page, and discover API access.
Use the ontology-linked Cyber API with x402 pay per request, or a Y2 Pro or Elite API key with the intel:cyber scope.
Endpoints and access details
https://api.y2.dev/api/v2/cyber/cveshttps://api.y2.dev/api/v2/cyber/cves/{cveId}
A workspace owner or admin can create a Pro or Elite API key. Send Authorization: Bearer <Y2_API_KEY> from your trusted agent runtime.
For x402, omit Authorization and read the HTTP 402 payment challenge before signing a retry. Public browser tools do not make payments.