CVE-2024-56685

Kernel panic via uninitialized dummy codec dereference

Published Dec 28, 2024 · Updated May 11, 2026

NULL pointer dereference in MediaTek ASoC drivers in affected Linux kernels allows attackers to panic the kernel during sound-card probe. The mt8188 and mt8195 probe paths pass an uninitialized dummy codec's null dai_name pointer to strcmp() without first verifying that num_codecs is nonzero. Reachability requires an affected MediaTek sound driver and a Devicetree dai link that omits either its subnode or codec property.

CVSS severity5.5
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in MediaTek ASoC drivers in affected Linux kernels allows attackers to panic the kernel during sound-card probe. The mt8188 and mt8195 probe paths pass an uninitialized dummy codec's null dai_name pointer to strcmp() without first verifying that num_codecs is nonzero. Reachability requires an affected MediaTek sound driver and a Devicetree dai link that omits either its subnode or codec property.

The record

CVE
CVE-2024-56685
Published
Dec 28, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-908, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 28, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=13f58267cda3d6946c8f4de368ad5d4a003baa61 <2f2020327cc8561d7c520d2f2d9acea84fa7b3a3
  2. Affected versionversion=13f58267cda3d6946c8f4de368ad5d4a003baa61 <376f4800f34a28def026ff5c5d4fc5e54e1744ff
  3. Affected versionversion=13f58267cda3d6946c8f4de368ad5d4a003baa61 <550279449ff54c5aa28cfca5c567308cbfb145f0
  4. Affected versionversion=6.8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=13f58267cda3d6946c8f4de368ad5d4a003baa61 <2f2020327cc8561d7c520d2f2d9acea84fa7b3a3; version=13f58267cda3d6946c8f4de368ad5d4a003baa61 <376f4800f34a28def026ff5c5d4fc5e54e1744ff; version=13f58267cda3d6946c8f4de368ad5d4a003baa61 <550279449ff54c5aa28cfca5c567308cbfb145f0; version=6.8

Published CVSS scores

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

CWE-908Use of Uninitialized Resource
T1499.004Endpoint Denial of Service: Application 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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