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
Summary: CVE-2017-9985 kernel: Double fetch in the snd_msndmidi_input_read function in...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-9985
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-07-12 14:14 UTC by Andrej Nemec
Modified: 2019-09-29 14:16 UTC (History)
35 users (show)

Fixed In Version:
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Last Closed: 2017-07-12 14:15:02 UTC


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Description Andrej Nemec 2017-07-12 14:14:24 UTC
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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