New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 800672 link

Starred by 1 user

Issue metadata

Status: Duplicate
Merged: issue 800692
Owner:
Closed: Jan 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



Sign in to add a comment

Bad-cast to const blink::LayoutBox from blink::LayoutSVGViewportContainer in blink::ObjectPaintPropertyTreeBuilder::UpdateForChildren

Project Member Reported by ClusterFuzz, Jan 10 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5389292447989760

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_ubsan_vptr_chrome
Platform Id: linux

Crash Type: Bad-cast
Crash Address: 0x2449e0044000
Crash State:
  Bad-cast to const blink::LayoutBox from blink::LayoutSVGViewportContainer
  blink::ObjectPaintPropertyTreeBuilder::UpdateForChildren
  blink::PrePaintTreeWalk::WalkInternal
  
Sanitizer: undefined (UBSAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_chrome&range=528242:528243

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5389292447989760

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Project Member

Comment 1 by ClusterFuzz, Jan 10 2018

Components: Blink>Paint
Labels: Test-Predator-Auto-Components
Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.
Project Member

Comment 2 by ClusterFuzz, Jan 10 2018

Labels: Test-Predator-Auto-Owner
Owner: wangxianzhu@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/8fc86d05d7b0a18c0e4f726f496a0083c6a8a9e6 ([SPv175+] Create OverflowClip for LayoutSVGViewportContainer).

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.
Project Member

Comment 3 by sheriffbot@chromium.org, Jan 10 2018

Labels: M-65
Project Member

Comment 4 by sheriffbot@chromium.org, Jan 10 2018

Labels: ReleaseBlock-Stable
This is a serious security regression. If you are not able to fix this quickly, please revert the change that introduced it.

If this doesn't affect a release branch, or has not been properly classified for severity, please update the Security_Impact or Security_Severity labels, and remove the ReleaseBlock label. To disable this altogether, apply ReleaseBlock-NA.

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

Comment 5 by sheriffbot@chromium.org, Jan 10 2018

Labels: Pri-1
Mergedinto: 800692
Status: Duplicate (was: Assigned)
Project Member

Comment 7 by ClusterFuzz, Jan 11 2018

ClusterFuzz has detected this issue as fixed in range 528337:528339.

Detailed report: https://clusterfuzz.com/testcase?key=5389292447989760

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_ubsan_vptr_chrome
Platform Id: linux

Crash Type: Bad-cast
Crash Address: 0x2449e0044000
Crash State:
  Bad-cast to const blink::LayoutBox from blink::LayoutSVGViewportContainer
  blink::ObjectPaintPropertyTreeBuilder::UpdateForChildren
  blink::PrePaintTreeWalk::WalkInternal
  
Sanitizer: undefined (UBSAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_chrome&range=528242:528243
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_chrome&range=528337:528339

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5389292447989760

See https://github.com/google/clusterfuzz-tools 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 8 by sheriffbot@chromium.org, Jan 11 2018

Labels: -reward-topanel reward-ineligible
Project Member

Comment 9 by sheriffbot@chromium.org, Mar 27 2018

Labels: -Security_Impact-Head Security_Impact-Stable
Project Member

Comment 10 by sheriffbot@chromium.org, Apr 19 2018

Labels: -Restrict-View-SecurityTeam allpublic
This bug has been closed for more than 14 weeks. Removing security view restrictions.

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

Sign in to add a comment