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Date: Mon, 22 Feb 2010 11:51:05 +0800
From: Eugene Teo <>
CC: "Steven M. Christey" <>
Subject: CVE request: kernel: ALSA: hda-intel: Avoid divide by zero crash

hda-intel crashes the kernel due to a divide by zero in azx_position_ok.

Using mp3blaster-3.2.5 (latest version) to play MP3 audio, the reporter 
was able to crash the kernel by stopping and restarting playback using 
the "5" key repeatedly. This happens as a normal user, not only as root. 
Kernel backtrace points to azx_position_ok() dividing by zero.

Upstream commit:


Thanks, Eugene

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