Critical Vulnerability in Linux Kernel: ASoC Intel Missing Empty Item
Summary
DEBIAN-CVE-2024-46862: In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: soc-acpi-intel-mtl-match: add missing empty item There is no links_num in struct snd_soc_acpi_mach {}, and we test !link->num_adr as a cond... Affects linux versions < 6.10.11-1. Fixed in 6.10.11-1. How to fix ↓
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Background
The Linux kernel is the core component of the Linux operating system, responsible for managing hardware resources and providing essential services to software applications. It is widely used in various environments, from servers to embedded systems. This vulnerability affects the Linux kernel versions in Debian 13 and 14, specifically in the ASoC (ALSA System on Chip) subsystem, which is crucial for audio processing on Intel platforms.
Vulnerability Detail
In the Linux kernel, a vulnerability has been identified in the ASoC subsystem related to Intel's hardware. The issue arises from the absence of a 'links_num' in the 'struct snd_soc_acpi_mach' structure. This oversight leads to a potential infinite loop in the 'hda_sdw_machine_select()' function when processing the 'snd_soc_acpi_link_adr' array. If an empty item is not included, it can cause unexpected behavior or crashes, impacting system stability and audio functionality.
How To Fix
Minimum fixed version
6.10.11-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds provided for this vulnerability. The best course of action is to apply the patch by updating to the fixed version of the Linux kernel.
Conclusion
The identified vulnerability in the Linux kernel's ASoC subsystem poses a significant risk to system stability and audio functionality. Users are strongly encouraged to update their kernel to the patched version 6.10.11-1 to mitigate this issue. Regular monitoring and timely updates are essential for maintaining system security.
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FAQ
The vulnerability is related to a missing empty item in the ASoC subsystem of the Linux kernel, which can lead to potential infinite loops and system instability.
The vulnerability affects the Linux kernel versions in Debian 13 and 14 prior to the fixed version 6.10.11-1.
You can use tools like Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without needing to sign up.
While there are no specific workarounds, it is advisable to prioritize updating the kernel as soon as possible to mitigate the risk associated with this vulnerability.
Detailed information about this vulnerability can be found in the Debian CVE database at https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-46862.json.
References
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