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Issue 643732 link

Starred by 1 user

Issue metadata

Status: WontFix
Owner: ----
Closed: Dec 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Direct-leak in google_breakpad::MinidumpContext::Read

Project Member Reported by ClusterFuzz, Sep 2 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5782251931697152

Fuzzer: libfuzzer_minidump_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Direct-leak
Crash Address: 
Crash State:
  google_breakpad::MinidumpContext::Read
  google_breakpad::MinidumpThread::GetContext
  google_breakpad::MinidumpProcessor::Process
  

Unminimized Testcase: https://cluster-fuzz.appspot.com/download/AMIfv97eLliMJ7aXdj4KPyhBspDlsOazWxDXruYEQYxIwasDr9mUz_4MX8a1xpxo3T4GFoFTVSZmAOSGstCShE-F-w9ipmR0F-3uXVQZf2kzXOuIDGvKndRtMqxq5UqT68HBI-cgs0H2rh-hN3VFsb2RvtYyemLB629RotV08wELwfzV2T6p7-w?testcase_id=5782251931697152


Issue manually filed by: wfh

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 

Comment 1 by wfh@chromium.org, Sep 2 2016

Cc: mark@chromium.org scottmg@chromium.org
looks like the DumpContext::FreeContext is getting confused by which CPU context to free...?
Cc: mmoroz@chromium.org kcc@chromium.org aizatsky@chromium.org
Owner: kcc@chromium.org
Status: Assigned (was: Untriaged)
kcc@ could you please look into this.please feel free to re-assigned back if needed. thanks in advance !

Comment 4 by kcc@chromium.org, Nov 3 2016

Cc: infe...@chromium.org
Owner: ----
Status: Available (was: Assigned)
mmohammad, why do you assign these bugs to me? 
I develop libFuzzer, the tool that finds these bugs,
and I don't know the code where the bug is. 

Comment 5 by wfh@chromium.org, Nov 3 2016

Cc: -mark@chromium.org
Components: Internals>CrashReporting
Owner: mark@chromium.org
Status: Assigned (was: Available)
assigning to Mark, as he looked at these in the past :) If not, I'll take a look next week.

Comment 6 by mark@chromium.org, Nov 4 2016

Cc: mark@chromium.org
Owner: ----
Status: Available (was: Assigned)
I’m going to be getting stricter about my “no junky Breakpad bugs” policy, because otherwise I’ll never be able to make progress on replacing it. I’ll still offer free consultation and therapy.
Project Member

Comment 7 by sheriffbot@chromium.org, Nov 22 2016

Labels: -Restrict-View-EditIssue
Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Project Member

Comment 8 by ClusterFuzz, Dec 22 2016

Status: WontFix (was: Available)
ClusterFuzz testcase 5782251931697152 is flaky and no longer reproduces, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.

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