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Review reviewHigh

CVE-2024-26799

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: ASoC: qcom: Fix uninitialized pointer dmactl In the case where __lpass_get_dmactl_handle is called and the driver id dai_id is invalid the pointer dmactl is not being assigned a value, and dmactl contains a garbage value since it has not been initialized and so the null check may not work. Fix this to initialize dmactl to NULL. One could argue that modern compilers will set this to zero, but it is useful to keep this initialized as per the same way in functions __lpass_platform_codec_intf_init and lpass_cdc_dma_daiops_hw_pa...

CVSS
7
EPSS
0.24%
14.9% percentile
CISA KEV
Not listed
Published
2024.04.04
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.24%
Technical severityCVSS 7

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: ASoC: qcom: Fix uninitialized pointer dmactl In the case where __lpass_get_dmactl_handle is called and the driver id dai_id is invalid the pointer dmactl is not being assigned a value, and dmactl contains a garbage value since it has not been initialized and so the null check may not work. Fix this to initialize dmactl to NULL. One could argue that modern compilers will set this to zero, but it is useful to keep this initialized as per the same way in functions __lpass_platform_codec_intf_init and lpass_cdc_dma_daiops_hw_pa...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= b81af585ea54ee9f749391e594ee9cbd44061eae < 99adc8b4d2f38bf0d06483ec845bc48f60c3f8cf, >= b81af585ea54ee9f749391e594ee9cbd44061eae < d5a7726e6ea62d447b79ab5baeb537ea6bdb225b, >= b81af585ea54ee9f749391e594ee9cbd44061eae < 1382d8b55129875b2e07c4d2a7ebc790183769ee, >= 5.18, >= 5.18 < 6.6.21, >= 6.7 < 6.7.9, 6.8
Fixed versions
6.6.21, 6.7.9

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-824
CVE-2024-26799 — Linux Linux, linux kernel | SECUFOCUS NOW