[Webkit-unassigned] [Bug 83725] New: ThreadingWin: Mutex::unlock() can be "over-unlocked".
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Wed Apr 11 15:28:29 PDT 2012
https://bugs.webkit.org/show_bug.cgi?id=83725
Summary: ThreadingWin: Mutex::unlock() can be "over-unlocked".
Product: WebKit
Version: 528+ (Nightly build)
Platform: Unspecified
OS/Version: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: WebCore Misc.
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: jer.noble at apple.com
Unlocking a Mutex more times than it's m_recursionCount will result in the m_recursionCount wrapping around to MAX_INT. There should be at least an ASSERT(m_recursionCount) in Mutex::unlock(), if not an explicit: "if (m_recursionCount) --resursionCount;"
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