The snd_ctl_elem_add function in sound/core/control.c in the ALSA
control implementation in the Linux kernel before 3.15.2 does not
properly maintain the user_ctl_count value, which allows local users
to cause a denial of service (integer overflow and limit bypass) by
leveraging /dev/snd/controlCX access for a large number of
SNDRV_CTL_IOCTL_ELEM_REPLACE ioctl calls.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20140626 Re: CVE Request: Linux kernel ALSA core control API vulnerabilities
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