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Issue metadata

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



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Float-cast-overflow in blink::MediaQueryExp::createIfValid

Project Member Reported by ClusterFuzz, Dec 16 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6264386055569408

Fuzzer: inferno_twister
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Float-cast-overflow
Crash Address: 
Crash State:
  blink::MediaQueryExp::createIfValid
  blink::MediaQueryData::addExpression
  blink::MediaQueryParser::readFeatureEnd
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=435261:438085

Minimized Testcase (20.60 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95QrgcjvLElRSB3cUWogG0IRTO8CDbmuI7l7syY49hk5va5jHCRYpduaFu_pa9FO-79U5zHUSkArPAPZOO_ynHTRFIciRT3GNJ6nwVYZL2P982lTK4vp3TmaWo-bFX9WSd-1LZOD-WTOsBcwnySbgNZqWfEa-T1-HEIaKx_uJRvF4C1CKI?testcase_id=6264386055569408

Issue filed automatically.

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Cc: r...@opera.com
Components: Blink>Media
Labels: Test-Predator-Correct M-57
The result is a list of CLs that change the crashed files. 

Author: rune
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src/+/11bf99aa6426685ed8bf15b98a2680b02a841455
Time: Thu Dec 08 08:46:56 2016
Lines 60-63 of file HTMLStyleElement.cpp which potentially caused crash are changed in this cl (frame #6, "blink::HTMLStyleElement::parseAttribute").
Minimum distance from crash line to modified line: 0. (file: HTMLStyleElement.cpp, crashed on: 60, modified: 60).
Components: -Blink>Media Blink>CSS
Cc: -r...@opera.com meade@chromium.org
Owner: r...@opera.com
Status: Assigned (was: Untriaged)

Comment 4 by r...@opera.com, Dec 20 2016

Cc: r...@opera.com
Owner: ----
Status: Available (was: Assigned)
That change is not related.

Project Member

Comment 5 by ClusterFuzz, Dec 22 2016

ClusterFuzz has detected this issue as fixed in range 440242:440280.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6264386055569408

Fuzzer: inferno_twister
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Float-cast-overflow
Crash Address: 
Crash State:
  blink::MediaQueryExp::createIfValid
  blink::MediaQueryData::addExpression
  blink::MediaQueryParser::readFeatureEnd
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=435261:438085
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=440242:440280

Minimized Testcase (20.60 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95QrgcjvLElRSB3cUWogG0IRTO8CDbmuI7l7syY49hk5va5jHCRYpduaFu_pa9FO-79U5zHUSkArPAPZOO_ynHTRFIciRT3GNJ6nwVYZL2P982lTK4vp3TmaWo-bFX9WSd-1LZOD-WTOsBcwnySbgNZqWfEa-T1-HEIaKx_uJRvF4C1CKI?testcase_id=6264386055569408

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs 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 6 by ClusterFuzz, Dec 22 2016

Labels: ClusterFuzz-Verified
Status: Verified (was: Available)
ClusterFuzz testcase 6264386055569408 is verified as fixed, so closing issue.

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

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