CVE-2026-43412

Kernel crash via premature q6apm runtime removal

Published May 8, 2026 · Updated May 8, 2026

NULL pointer dereference in the Linux Kernel ASoC Qualcomm qdsp6 driver allows local users to crash the kernel during an ADSP restart. The q6apm-audio remove callback unloads topology and deletes PCM runtime data before the q6apm DAI components are removed, leaving stale card links. Reachability requires local low-privileged access and the affected Qualcomm audio stack; the next ADSP rebind triggers a kernel oops and interrupts the system.

CVSS severity5.5
Medium
EPSS probability0.12%
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 the Linux Kernel ASoC Qualcomm qdsp6 driver allows local users to crash the kernel during an ADSP restart. The q6apm-audio remove callback unloads topology and deletes PCM runtime data before the q6apm DAI components are removed, leaving stale card links. Reachability requires local low-privileged access and the affected Qualcomm audio stack; the next ADSP rebind triggers a kernel oops and interrupts the system.

The record

CVE
CVE-2026-43412
Published
May 8, 2026
Updated
May 8, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 8, 2026CVE publishedPublication date reported by the CVE source.
  2. May 8, 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=5.16
  2. Affected versionversion=5477518b8a0e8a45239646acd80c9bafc4401522 <0da170b9e600da6930cfb8352e4cc036db3b6159
  3. Affected versionversion=5477518b8a0e8a45239646acd80c9bafc4401522 <22b05abb17e3c6ef45035141fe3d26f815ff9d30
  4. Affected versionversion=5477518b8a0e8a45239646acd80c9bafc4401522 <897f32cab7945f4662a50b3841ba31c6c3204876
  5. Affected versionversion=5477518b8a0e8a45239646acd80c9bafc4401522 <94bda21adb2a51f69366b847b4d80dfe50bd9fb9
  6. Affected versionversion=5477518b8a0e8a45239646acd80c9bafc4401522 <a8e9cab16771b15160465783507496dc83742d8e
  7. Affected versionversion=5477518b8a0e8a45239646acd80c9bafc4401522 <d6db827b430bdcca3976cebca7bd69cca03cde2c

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=5.16; version=5477518b8a0e8a45239646acd80c9bafc4401522 <0da170b9e600da6930cfb8352e4cc036db3b6159; version=5477518b8a0e8a45239646acd80c9bafc4401522 <22b05abb17e3c6ef45035141fe3d26f815ff9d30; version=5477518b8a0e8a45239646acd80c9bafc4401522 <897f32cab7945f4662a50b3841ba31c6c3204876; version=5477518b8a0e8a45239646acd80c9bafc4401522 <94bda21adb2a51f69366b847b4d80dfe50bd9fb9; version=5477518b8a0e8a45239646acd80c9bafc4401522 <a8e9cab16771b15160465783507496dc83742d8e; version=5477518b8a0e8a45239646acd80c9bafc4401522 <d6db827b430bdcca3976cebca7bd69cca03cde2c

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-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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