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Issue metadata

Status: WontFix
Owner:
Closed: May 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: ----
Type: Bug-Security



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CrOS: (CVE-2017-8246) Vulnerability reported in Linux kernel

Project Member Reported by vomit.go...@appspot.gserviceaccount.com, May 27 2017

Issue description

VOMIT (go/vomit) has received an external vulnerability report for the Linux kernel. 

Advisory: CVE-2017-8246
  Details: http://vomit.googleplex.com/advisory?id=CVE/CVE-2017-8246
  CVSS severity score: 4.6/10.0
  Description:

In function msm_pcm_playback_close() in all Android releases from CAF using the Linux kernel, prtd is assigned substream->runtime->private_data. Later, prtd is freed. However, prtd is not sanitized and set to NULL, resulting in a dangling pointer. There are other functions that access the same memory (substream->runtime->private_data) with a NULL check, such as msm_pcm_volume_ctl_put(), which means this freed memory could be used.



This bug was filed by http://go/vomit
Please contact us at vomit-team@google.com if you need any assistance.

 

Comment 1 by kenrb@chromium.org, May 29 2017

Owner: groeck@chromium.org
Status: Assigned (was: Untriaged)
To groeck@ for triage.

Comment 2 by kenrb@chromium.org, May 29 2017

Components: OS>Kernel

Comment 3 by groeck@chromium.org, May 29 2017

Status: WontFix (was: Assigned)
Summary: CrOS: (CVE-2017-8246) Vulnerability reported in Linux kernel (was: CrOS: Vulnerability reported in Linux kernel)
Affected code is not in CrOS code base.

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