CVE-2024-26799

Kernel crash via uninitialized DMA control pointer

Published Apr 4, 2024 · Updated Aug 5, 2026

An uninitialized pointer in Linux 5.18 through 6.6.20, 6.7 through 6.7.8, and 6.8-rc1 through 6.8-rc6 allows local users to crash the kernel. __lpass_get_dmactl_handle in sound/soc/qcom/lpass-cdc-dma.c leaves dmactl unassigned for an invalid dai_id, then evaluates it in a null check. Reachability requires local access and the Qualcomm LPASS codec DMA path; the reported consequence is limited to availability loss.

CVSS severity6.2
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

An uninitialized pointer in Linux 5.18 through 6.6.20, 6.7 through 6.7.8, and 6.8-rc1 through 6.8-rc6 allows local users to crash the kernel. __lpass_get_dmactl_handle in sound/soc/qcom/lpass-cdc-dma.c leaves dmactl unassigned for an invalid dai_id, then evaluates it in a null check. Reachability requires local access and the Qualcomm LPASS codec DMA path; the reported consequence is limited to availability loss.

The record

CVE
CVE-2024-26799
Published
Apr 4, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-824, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 4, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=5.18
  2. Affected versionversion=b81af585ea54ee9f749391e594ee9cbd44061eae <1382d8b55129875b2e07c4d2a7ebc790183769ee
  3. Affected versionversion=b81af585ea54ee9f749391e594ee9cbd44061eae <99adc8b4d2f38bf0d06483ec845bc48f60c3f8cf
  4. Affected versionversion=b81af585ea54ee9f749391e594ee9cbd44061eae <d5a7726e6ea62d447b79ab5baeb537ea6bdb225b

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.18; version=b81af585ea54ee9f749391e594ee9cbd44061eae <1382d8b55129875b2e07c4d2a7ebc790183769ee; version=b81af585ea54ee9f749391e594ee9cbd44061eae <99adc8b4d2f38bf0d06483ec845bc48f60c3f8cf; version=b81af585ea54ee9f749391e594ee9cbd44061eae <d5a7726e6ea62d447b79ab5baeb537ea6bdb225b

Published CVSS scores

6.2CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-824Access of Uninitialized Pointer
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo