CVE-2024-42089

MEDIUM
Published Jul 29, 2024 Modified Nov 3, 2025 CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: fsl-asoc-card: set priv->pdev before using it priv->pdev pointer was set after being used in fsl_asoc_card_audmux_init(). Move this assignment at the start of the probe function, so sub-functions can correctly use pdev through priv. fsl_asoc_card_audmux_init() dereferences priv->pdev to get access to the dev struct, used with dev_err macros. As priv is zero-initialised, there would be a NULL pointer dereference. Note that if priv->dev is dereferenced before assignment but never used, for example if there is no error to be printed, the driver won't crash probably due to compiler optimisations.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/29bc9e7c75398b0d12fc30955f2e9b2dd29ffaed https://git.kernel.org/stable/c/3662eb2170e59b58ad479982dc1084889ba757b9 https://git.kernel.org/stable/c/544ab46b7ece6d6bebbdee5d5659c0a0f804a99a https://git.kernel.org/stable/c/7c18b4d89ff9c810b6e562408afda5ce165c4ea6 https://git.kernel.org/stable/c/8896e18b7c366f8faf9344abfd0971435f1c723a https://git.kernel.org/stable/c/8faf91e58425c2f6ce773250dfd995f1c2d461ac https://git.kernel.org/stable/c/90f3feb24172185f1832636264943e8b5e289245 https://git.kernel.org/stable/c/ae81535ce2503aabc4adab3472f4338070cdeb6a https://git.kernel.org/stable/c/29bc9e7c75398b0d12fc30955f2e9b2dd29ffaed https://git.kernel.org/stable/c/3662eb2170e59b58ad479982dc1084889ba757b9 https://git.kernel.org/stable/c/544ab46b7ece6d6bebbdee5d5659c0a0f804a99a https://git.kernel.org/stable/c/7c18b4d89ff9c810b6e562408afda5ce165c4ea6 https://git.kernel.org/stable/c/8896e18b7c366f8faf9344abfd0971435f1c723a https://git.kernel.org/stable/c/8faf91e58425c2f6ce773250dfd995f1c2d461ac https://git.kernel.org/stable/c/90f3feb24172185f1832636264943e8b5e289245 https://git.kernel.org/stable/c/ae81535ce2503aabc4adab3472f4338070cdeb6a

Frequently Asked Questions

What is CVE-2024-42089? +
In the Linux kernel, the following vulnerability has been resolved: ASoC: fsl-asoc-card: set priv->pdev before using it priv->pdev pointer was set after being used in fsl_asoc_card_audmux_init(). Move this assignment at the start of the probe function, so sub-functions can correctly use pdev through priv. fsl_asoc_card_audmux_init() dereferences priv->pdev to get access to the dev struct, used with dev_err macros. As priv is zero-initialised, there would be a NULL pointer dereference. Note that if priv->dev is dereferenced before assignment but never used, for example if there is no error to be printed, the driver won't crash probably due to compiler optimisations. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2024-42089? +
CVE-2024-42089 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2024-42089? +
CVE-2024-42089 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-42089? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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