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Vulnerability DatabaseCVE-2022-48738
CVE-2022-48738:
Linux Kernel vulnerability analysis and mitigation
Overview
CVE-2022-48738 affects the Linux kernel's ASoC (ALSA System on Chip) subsystem. The vulnerability was discovered in the sndsocput_volsw() function where values being set were not properly validated against the range advertised to userspace as being valid (NVD, Kernel Git).
Technical details
The vulnerability exists in the sound/soc/soc-ops.c file where the sndsocputvolsw() function failed to validate input values against their advertised valid ranges. The function was modified to add proper bounds checking before applying the values, including validation against platformmax, maximum range (max - min), and negative values (Kernel Git).
Impact
When exploited, this vulnerability could allow setting invalid values for audio controls, potentially leading to undefined behavior in the audio subsystem (NVD).
Mitigation and workarounds
The vulnerability has been fixed in multiple Linux kernel versions through patches that implement proper value validation. The fix has been backported to various stable kernel branches and is available in updated kernel packages for different Linux distributions (Ubuntu).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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