Bug 1470213 - (CVE-2017-9985) CVE-2017-9985 kernel: Double fetch in the snd_msndmidi_input_read function in sound/isa/msnd/msnd_midi.c
CVE-2017-9985 kernel: Double fetch in the snd_msndmidi_input_read function in...
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20170628,reported=2...
: Security
Depends On:
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Reported: 2017-07-12 10:14 EDT by Andrej Nemec
Modified: 2017-07-12 10:15 EDT (History)
35 users (show)

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Last Closed: 2017-07-12 10:15:02 EDT
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Description Andrej Nemec 2017-07-12 10:14:24 EDT
The snd_msndmidi_input_read function in sound/isa/msnd/msnd_midi.c in the Linux kernel through 4.11.7 allows local users to cause a denial of service (over-boundary access) or possibly have unspecified other impact by changing the value of a message queue head pointer between two kernel reads of that value, aka a "double fetch" vulnerability.

Upstream issue:

https://bugzilla.kernel.org/show_bug.cgi?id=196133

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