CVE-2025-68347
Buffer Overflow in Linux ALSA firewire-motu DSP Event Handling
Publication date: 2025-12-24
Last updated on: 2025-12-24
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | kernel | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a buffer overflow in the Linux kernel's ALSA firewire-motu driver. Specifically, in the DSP event handling code within the hwdep_read() function, more bytes could be written to the user buffer than requested if the user provides a buffer smaller than the event header size (8 bytes). The issue was fixed by clamping the copy size to never exceed the user-requested size.
How can this vulnerability impact me? :
This vulnerability could lead to a buffer overflow, which may cause memory corruption or potentially allow an attacker to execute arbitrary code or cause a denial of service by crashing the system when interacting with the affected ALSA firewire-motu driver.
What immediate steps should I take to mitigate this vulnerability?
Apply the patch or update to a Linux kernel version that includes the fix for the ALSA firewire-motu buffer overflow vulnerability in hwdep_read(). This fix ensures that the copy size is clamped to the user requested size, preventing buffer overflow.