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CVE-2025-38729— ALSA: usb-audio: Validate UAC3 power domain descriptors, too

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于usb-audio未验证UAC3电源域描述符长度，可能导致越界访问。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 9a2fe9b801f585baccf8352d82839dcd54b300cf< 1666207ba0a5973735ef010812536adde6174e81 affected
9a2fe9b801f585baccf8352d82839dcd54b300cf< ebc9e06b6ea978a20abf9b87d41afc51b2d745ac affected
9a2fe9b801f585baccf8352d82839dcd54b300cf< f03418bb9d542f44df78eec2eff4ac83c0a8ac0d affected
9a2fe9b801f585baccf8352d82839dcd54b300cf< 40714daf4d0448e1692c78563faf0ed0f9d9b5c7 affected
9a2fe9b801f585baccf8352d82839dcd54b300cf< 07c8d78dbb5e0ff8b23f7fd69cd1d4e2ba22b3dc affected
9a2fe9b801f585baccf8352d82839dcd54b300cf< cd08d390d15b204cac1d3174f5f149a20c52e61a affected
9a2fe9b801f585baccf8352d82839dcd54b300cf< 29b415ec09f5b9d1dfa2423b826725a8c8796b9a affected
9a2fe9b801f585baccf8352d82839dcd54b300cf< 452ad54f432675982cc0d6eb6c40a6c86ac61dbd affected
… +12 more rows
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I. Basic Information for CVE-2025-38729

Vulnerability Information
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Vulnerability Title
ALSA: usb-audio: Validate UAC3 power domain descriptors, too
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Validate UAC3 power domain descriptors, too UAC3 power domain descriptors need to be verified with its variable bLength for avoiding the unexpected OOB accesses by malicious firmware, too.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于usb-audio未验证UAC3电源域描述符长度，可能导致越界访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 9a2fe9b801f585baccf8352d82839dcd54b300cf ~ 1666207ba0a5973735ef010812536adde6174e81 -
Linux Linux 4.17 -

II. Public POCs for CVE-2025-38729

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III. Intelligence Information for CVE-2025-38729

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Patches & Fixes for CVE-2025-38729 (2)

Same Patch Batch · Linux · 2025-09-04 · 52 CVEs total

CVE-2025-38708 9.8 CRITICAL drbd: add missing kref_get in handle_write_conflicts
CVE-2025-38724 9.8 CRITICAL nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm()
CVE-2025-38728 9.1 CRITICAL smb3: fix for slab out of bounds on mount to ksmbd
CVE-2025-38688 8.8 HIGH iommufd: Prevent ALIGN() overflow
CVE-2025-38685 7.8 HIGH fbdev: Fix vmalloc out-of-bounds write in fast_imageblit
CVE-2025-38730 7.8 HIGH io_uring/net: commit partial buffers on retry
CVE-2025-38722 7.8 HIGH habanalabs: fix UAF in export_dmabuf()
CVE-2025-38697 7.8 HIGH jfs: upper bound check of tree index in dbAllocAG
CVE-2025-38703 7.8 HIGH drm/xe: Make dma-fences compliant with the safe access rules
CVE-2025-38714 7.8 HIGH hfsplus: fix slab-out-of-bounds in hfsplus_bnode_read()
CVE-2025-38718 7.8 HIGH sctp: linearize cloned gso packets in sctp_rcv
CVE-2025-38717 7.8 HIGH net: kcm: Fix race condition in kcm_unattach()
CVE-2025-38710 7.8 HIGH gfs2: Validate i_depth for exhash directories
CVE-2025-38715 7.8 HIGH hfs: fix slab-out-of-bounds in hfs_bnode_read()
CVE-2025-38687 7.3 HIGH comedi: fix race between polling and detaching
CVE-2025-38679 7.3 HIGH media: venus: Fix OOB read due to missing payload bound check
CVE-2025-38707 7.1 HIGH fs/ntfs3: Add sanity check for file name
CVE-2025-38713 7.1 HIGH hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc()
CVE-2025-38689 x86/fpu: Fix NULL dereference in avx512_status()
CVE-2025-38691 pNFS: Fix uninited ptr deref in block/scsi layout

Showing top 20 of 52 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38729

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