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Issue metadata

Status: Duplicate
Merged: issue 659220
Owner:
Closed: Oct 2016
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Integer-overflow in dmg_fp::strtod

Project Member Reported by ClusterFuzz, Oct 25 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6503262514839552

Fuzzer: libfuzzer_base_json_reader_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  dmg_fp::strtod
  base::StringToDouble
  base::internal::JSONParser::ConsumeNumber
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_ubsan&range=425493:425531

Minimized Testcase (0.01 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv94N2IsINWD7tuegJJJMsgRj-eqtqP8XlG19-ATmD0CT9qntWW839kPiJ-elk_YjQ1etLkM8E1D_FijGBI9OD9OyvgrzkBhKAoybQ1YG1pe-9ez3QUMfpinLZ07MadFJQgSRadjLakvj1sF5fR_rVcEO7ZFrCg?testcase_id=6503262514839552
21e-2147483623:


Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 
Components: Internals
Labels: M-56 Te-Logged
Owner: kcwu@chromium.org
Status: Assigned (was: Untriaged)
Author: kcwu
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src/+/094232aa420680ea0c8b4bb5e465315bd5972c2f
Time: Fri Oct 14 22:58:34 2016
Lines 2678-2680 of file dtoa.cc which potentially caused crash are changed in this cl (frame #0, "dmg_fp::strtod").
Minimum distance from crash line to modified line: 0. (file: dtoa.cc, crashed on: 2678, modified: 2678).

Suspected Project: chromium

Comment 2 by kcwu@chromium.org, Oct 26 2016

Mergedinto: 659220
Status: Duplicate (was: Assigned)
Project Member

Comment 3 by ClusterFuzz, Oct 27 2016

ClusterFuzz has detected this issue as fixed in range 427738:427783.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6503262514839552

Fuzzer: libfuzzer_base_json_reader_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  dmg_fp::strtod
  base::StringToDouble
  base::internal::JSONParser::ConsumeNumber
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_ubsan&range=425493:425531
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_ubsan&range=427738:427783

Minimized Testcase (0.01 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv94N2IsINWD7tuegJJJMsgRj-eqtqP8XlG19-ATmD0CT9qntWW839kPiJ-elk_YjQ1etLkM8E1D_FijGBI9OD9OyvgrzkBhKAoybQ1YG1pe-9ez3QUMfpinLZ07MadFJQgSRadjLakvj1sF5fR_rVcEO7ZFrCg?testcase_id=6503262514839552
21e-2147483623:


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

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
Project Member

Comment 4 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

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