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Issue metadata

Status: Duplicate
Merged: issue 900059
Owner:
Last visit > 30 days ago
Closed: Oct 29
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Integer-overflow in icu_62::number::impl::DecimalQuantity::toScientificString

Project Member Reported by ClusterFuzz, Jul 19

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6475056511975424

Fuzzer: libFuzzer_icu_number_format_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  icu_62::number::impl::DecimalQuantity::toScientificString
  icu_62::number::impl::DecimalQuantity::toDouble
  icu_62::Formattable::adoptDecimalQuantity
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=573648:573650

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6475056511975424

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Jul 19

Cc: js...@chromium.org
Labels: ClusterFuzz-Auto-CC
Automatically adding ccs based on OWNERS file / target commit history.

If this is incorrect, please add ClusterFuzz-Wrong label.
Project Member

Comment 2 by ClusterFuzz, Jul 19

Labels: Test-Predator-Auto-Owner
Owner: js...@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/deps/icu/+/a9a2bd3ee4f1d313651c5272252aaf2a3e7ed529 (Update ICU to 62.1 + local patches).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
Cc: sffc@google.com
Thanks; I was able to reproduce in ICU.  I filed an upstream ticket:

https://unicode-org.atlassian.net/browse/ICU-20037
Owner: sffc@chromium.org
I can cherry pick once you have a fix in the upstream ToT. In the meantime, assign it to you. Give back to me once you have a fix. 

Thanks. 

Project Member

Comment 6 by ClusterFuzz, Oct 29

ClusterFuzz has detected this issue as fixed in range 603409:603410.

Detailed report: https://clusterfuzz.com/testcase?key=6475056511975424

Fuzzer: libFuzzer_icu_number_format_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  icu_62::number::impl::DecimalQuantity::toScientificString
  icu_62::number::impl::DecimalQuantity::toDouble
  icu_62::Formattable::adoptDecimalQuantity
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=573648:573650
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=603409:603410

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6475056511975424

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.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 7 by ClusterFuzz, Oct 29

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6475056511975424 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Mergedinto: 900059
Status: Duplicate (was: Verified)

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