CVE-2024-46862

Kernel service interruption via unterminated SoundWire array

Published Sep 27, 2024 · Updated Aug 5, 2026

Out-of-bounds array traversal in Linux 6.10 through 6.10.10 allows local users to interrupt kernel operation during Intel ASoC initialization. The mtl_cs42l43_l0 SoundWire link array lacks the empty sentinel expected by hda_sdw_machine_select(), so its termination test reads beyond the array. Exposure requires a Meteor Lake system using the CS42L43-only ASoC machine definition, and the resulting failure affects host availability.

CVSS severity8.0
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds array traversal in Linux 6.10 through 6.10.10 allows local users to interrupt kernel operation during Intel ASoC initialization. The mtl_cs42l43_l0 SoundWire link array lacks the empty sentinel expected by hda_sdw_machine_select(), so its termination test reads beyond the array. Exposure requires a Meteor Lake system using the CS42L43-only ASoC machine definition, and the resulting failure affects host availability.

The record

CVE
CVE-2024-46862
Published
Sep 27, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.10
  2. Affected versionversion=f77ae7fcdc47630eb7653983f3c57ac44103aebc <01281a9e8275946aa725db0919769b8d35af3a11
  3. Affected versionversion=f77ae7fcdc47630eb7653983f3c57ac44103aebc <bf6d7a44a144aa9c476dee83c23faf3151181bab

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.10; version=f77ae7fcdc47630eb7653983f3c57ac44103aebc <01281a9e8275946aa725db0919769b8d35af3a11; version=f77ae7fcdc47630eb7653983f3c57ac44103aebc <bf6d7a44a144aa9c476dee83c23faf3151181bab

Published CVSS scores

5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
8.0Linux CNACVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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