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CVE-2026-46184— sound: ua101: fix division by zero at probe

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sound ua101中probe时除零错误，可能导致内核崩溃。

AI Predicted 5.5 Difficulty: Easy EPSS 0.13% · P3

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 63978ab3e3e963db28093b53bb4598f2702e1ad7< e02897c5b041c9b980055fa9a6167023d6dc5caf affected
63978ab3e3e963db28093b53bb4598f2702e1ad7< aae1498c59f48d03ee358df84f07a5af9885f827 affected
63978ab3e3e963db28093b53bb4598f2702e1ad7< 66d9c2ed081f299cfb201d9e9c4faf920e56e0bf affected
63978ab3e3e963db28093b53bb4598f2702e1ad7< 6162e8212e88c39492d981b248b5e37002486c66 affected
63978ab3e3e963db28093b53bb4598f2702e1ad7< 593dd7e6c890d8e4ca21b3e2f796b7cb8e8da983 affected
63978ab3e3e963db28093b53bb4598f2702e1ad7< 0ff2b713f406e9ecadb406014d74e7a020ac12b1 affected
63978ab3e3e963db28093b53bb4598f2702e1ad7< f1862dbf09080254c52175a448290c784dd7d3de affected
63978ab3e3e963db28093b53bb4598f2702e1ad7< d1f73f169c1014463b5060e3f60813e13ddc7b87 affected
… +10 more rows
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I. Basic Information for CVE-2026-46184

Vulnerability Information
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Vulnerability Title
sound: ua101: fix division by zero at probe
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: sound: ua101: fix division by zero at probe Add a missing sanity check for bNrChannels in detect_usb_format() to prevent a division by zero in playback_urb_complete() and capture_urb_complete(). USB core does not validate class-specific descriptor fields such as bNrChannels, so drivers must verify them before use. If a device provides bNrChannels = 0, frame_bytes becomes zero and is later used as a divisor in the URB completion handlers, leading to a kernel crash.
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sound ua101中probe时除零错误，可能导致内核崩溃。
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 63978ab3e3e963db28093b53bb4598f2702e1ad7 ~ e02897c5b041c9b980055fa9a6167023d6dc5caf -
Linux Linux 2.6.34 -

II. Public POCs for CVE-2026-46184

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III. Intelligence Information for CVE-2026-46184

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Patches & Fixes for CVE-2026-46184 (7)

Other References for CVE-2026-46184 (1)

Same Patch Batch · Linux · 2026-05-28 · 135 CVEs total

CVE-2026-46135 9.8 CRITICAL nvmet-tcp: fix race between ICReq handling and queue teardown
CVE-2026-46195 9.8 CRITICAL smb: client: validate dacloffset before building DACL pointers
CVE-2026-46137 9.8 CRITICAL mptcp: pm: ADD_ADDR rtx: fix potential data-race
CVE-2026-46115 9.8 CRITICAL block: add pgmap check to biovec_phys_mergeable
CVE-2026-46155 9.1 CRITICAL smb/client: fix out-of-bounds read in smb2_compound_op()
CVE-2026-46119 9.1 CRITICAL libceph: Fix slab-out-of-bounds access in auth message processing
CVE-2026-46185 9.1 CRITICAL smb/client: fix out-of-bounds read in symlink_data()
CVE-2026-46212 8.8 HIGH batman-adv: bla: prevent use-after-free when deleting claims
CVE-2026-46174 8.8 HIGH x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
CVE-2026-46125 8.8 HIGH wifi: mac80211: remove station if connection prep fails
CVE-2026-46198 8.8 HIGH batman-adv: fix integer overflow on buff_pos
CVE-2026-46166 8.8 HIGH wifi: mac80211: use safe list iteration in radar detect work
CVE-2026-46152 8.8 HIGH wifi: mac80211: drop stray 'static' from fast-RX rx_result
CVE-2026-46238 8.8 HIGH batman-adv: stop caching unowned originator pointers in BAT IV
CVE-2026-46113 8.8 HIGH KVM: x86: Fix shadow paging use-after-free due to unexpected GFN
CVE-2026-46232 8.1 HIGH HID: playstation: Clamp num_touch_reports
CVE-2026-46138 8.1 HIGH Bluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt
CVE-2026-46157 7.8 HIGH ALSA: pcm: oss: Fix data race at accessing runtime.oss.trigger
CVE-2026-46210 7.8 HIGH media: iris: fix use-after-free of fmt_src during MBPF check
CVE-2026-46215 7.8 HIGH drm: Set old handle to NULL before prime swap in change_handle

Showing top 20 of 135 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46184

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