Buffer Overflow Vulnerability in Linux Kernel ALSA FireWire Driver
CVE-2025-68753
What is CVE-2025-68753?
A buffer overflow vulnerability exists in the ALSA firewire-motu driver within the Linux kernel. This flaw specifically affects the DSP event handling code, where the put_user() loop is responsible for copying event data to a user buffer. If the user buffer is not aligned to 4 bytes, there is a risk of writing beyond the designated buffer boundary, leading to potential data corruption or exploitation. This issue has been mitigated by implementing a bounds check prior to executing the put_user() operation, ensuring that buffer overflows are properly prevented.
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Affected Version(s)
Linux 634ec0b2906efd46f6f57977e172aa3470aca432
Linux 634ec0b2906efd46f6f57977e172aa3470aca432 < 6d4f17782ce4facf3197e79707df411ee3d7b30a
Linux 634ec0b2906efd46f6f57977e172aa3470aca432 < 0d71b3c2ed742f1ccb3b0b7a61afb90c0251093f