CVE-2025-38249 (GCVE-0-2025-38249)

Vulnerability from cvelistv5 – Published: 2025-07-09 10:42 – Updated: 2026-05-11 21:24
VLAI?
Title
ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3()
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 9a2fe9b801f585baccf8352d82839dcd54b300cf , < 24ff7d465c4284529bbfa207757bffb6f44b6403 (git)
Affected: 9a2fe9b801f585baccf8352d82839dcd54b300cf , < 2dc1c3edf67abd30c757f8054a5da61927cdda21 (git)
Affected: 9a2fe9b801f585baccf8352d82839dcd54b300cf , < c3fb926abe90d86f5e3055e0035f04d9892a118b (git)
Affected: 9a2fe9b801f585baccf8352d82839dcd54b300cf , < 6eb211788e1370af52a245d4d7da35c374c7b401 (git)
Affected: 9a2fe9b801f585baccf8352d82839dcd54b300cf , < 74fcb3852a2f579151ce80b9ed96cd916ba0d5d8 (git)
Affected: 9a2fe9b801f585baccf8352d82839dcd54b300cf , < 0ee87c2814deb5e42921281116ac3abcb326880b (git)
Affected: 9a2fe9b801f585baccf8352d82839dcd54b300cf , < 11e740dc1a2c8590eb7074b5c4ab921bb6224c36 (git)
Affected: 9a2fe9b801f585baccf8352d82839dcd54b300cf , < fb4e2a6e8f28a3c0ad382e363aeb9cd822007b8a (git)
Create a notification for this product.
Linux Linux Affected: 4.17
Unaffected: 0 , < 4.17 (semver)
Unaffected: 5.4.296 , ≤ 5.4.* (semver)
Unaffected: 5.10.240 , ≤ 5.10.* (semver)
Unaffected: 5.15.187 , ≤ 5.15.* (semver)
Unaffected: 6.1.143 , ≤ 6.1.* (semver)
Unaffected: 6.6.96 , ≤ 6.6.* (semver)
Unaffected: 6.12.36 , ≤ 6.12.* (semver)
Unaffected: 6.15.5 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.