Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: firewire-motu: add bounds check in put_user loop for DSP events In the DSP event handling code, a put_user() loop copies event data. When the user buffer size is not aligned to 4 bytes, it could overwrite beyond the buffer boundary. Fix by adding a bounds check before put_user().
References6
- git.kernel.org/stable/c/0d71b3c2ed742f1ccb3b0b7a61afb90c0251093f
- git.kernel.org/stable/c/298e753880b6ea99ac30df34959a7a03b0878eed
- git.kernel.org/stable/c/6d4f17782ce4facf3197e79707df411ee3d7b30a
- git.kernel.org/stable/c/8f9e51cf2a2a43d0cd72d3dc0b5ccea3f639c187
- git.kernel.org/stable/c/df692cf2b601a54b34edfdb9e683d67483aa8ce1
- git.kernel.org/stable/c/ea2c921d9de6e32ca50cb817b9d57bb881be70de
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H - EPSS — exploit probability
- 0% percentile: 7 · as of 11 November 2026
- CWE
- CWE-787
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.