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Issue 833165 link

Starred by 2 users

Issue metadata

Status: WontFix
Owner:
Closed: Apr 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 1
Type: Bug-Security



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Allocator is out of memory trying to allocate 0x9a9a9a9a000000 bytes in safe_browsing::dmg::HFSForkReadStream::Read

Project Member Reported by ClusterFuzz, Apr 15 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4877677027393536

Fuzzer: libFuzzer_safe_browsing_hfs_fuzzer
Job Type: mac_libfuzzer_chrome_asan
Platform Id: mac

Crash Type: Allocator is out of memory trying to allocate 0x9a9a9a9a000000 bytes
Crash Address: 
Crash State:
  safe_browsing::dmg::HFSForkReadStream::Read
  safe_browsing::dmg::ReadStream::ReadExact
  safe_browsing::dmg::HFSBTreeIterator::Init
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_libfuzzer_chrome_asan&range=550594:550718

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4877677027393536

Issue filed automatically.

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

Comment 1 by sheriffbot@chromium.org, Apr 16 2018

Labels: M-67
Project Member

Comment 2 by sheriffbot@chromium.org, Apr 16 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 3 by sheriffbot@chromium.org, Apr 16 2018

Labels: Pri-1
 Issue 833225  has been merged into this issue.
 Issue 833236  has been merged into this issue.
 Issue 833244  has been merged into this issue.
Components: Services>Safebrowsing
Owner: nparker@chromium.org
Status: Assigned (was: Untriaged)
Owner: infe...@chromium.org
Status: WontFix (was: Assigned)
This needed a parsing fix on ClusterFuzz side. Closing this. Fix is in, if you see similar testcases, just duplicate to this bug.
Project Member

Comment 9 by sheriffbot@chromium.org, Jul 24

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

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