[Webkit-unassigned] [Bug 80912] New: BumpPointerAllocator assumes page size is less than MINIMUM_BUMP_POOL_SIZE
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Mon Mar 12 17:39:49 PDT 2012
https://bugs.webkit.org/show_bug.cgi?id=80912
Summary: BumpPointerAllocator assumes page size is less than
MINIMUM_BUMP_POOL_SIZE
Product: WebKit
Version: 528+ (Nightly build)
Platform: Unspecified
OS/Version: Unspecified
Status: UNCONFIRMED
Severity: Normal
Priority: P2
Component: JavaScriptCore
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: mmaxfield at google.com
CC: barraclough at apple.com
In BumpPointerPool::create(), poolSize is set to MINIMUM_BUMP_POOL_SIZE and then passed to PageAllocation::allocate(). If this value is not divisible by WTF::pageSize() (or, if the page size is larger than poolSize) allocate() crashes because of ASSERT(isPageAligned(size)).
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