Bug 168083 – Crash in WebCore::Animation::~Animation

• Status: RESOLVED
• Resolution: CONFIGURATION CHANGED
• Component: Animations

[Michael Catanzaro]

Created attachment 301091 [details]
Backtrace

I hit this crash today when watching a YouTube video. It reminds me of bug #164913, but it's different. Truncated backtrace:

0x00007fdf1395f390 in WTF::RefCounted<WebCore::TimingFunction>::deref() const (this=0x7fde4845d5b0)
    at /usr/src/debug/webkitgtk-2.14.3/Source/WTF/wtf/RefCounted.h:145
#1  0x00007fdf1395f390 in WTF::derefIfNotNull<WebCore::TimingFunction>(WebCore::TimingFunction*) (ptr=<optimized out>)
    at /usr/src/debug/webkitgtk-2.14.3/Source/WTF/wtf/PassRefPtr.h:40
#2  0x00007fdf1395f390 in WTF::RefPtr<WebCore::TimingFunction>::~RefPtr() (this=0x7fde149b89f0, __in_chrg=<optimized out>)
    at /usr/src/debug/webkitgtk-2.14.3/Source/WTF/wtf/RefPtr.h:62
#3  0x00007fdf1395f390 in WebCore::Animation::~Animation() (this=0x7fde149b89c0, __in_chrg=<optimized out>)
    at /usr/src/debug/webkitgtk-2.14.3/Source/WebCore/platform/animation/Animation.cpp:126
#4  0x00007fdf13c95a13 in WTF::RefCounted<WebCore::Animation>::deref() const (this=0x7fde149b89c0)
    at /usr/src/debug/webkitgtk-2.14.3/Source/WTF/wtf/RefCounted.h:145
#5  0x00007fdf13c95a13 in WTF::derefIfNotNull<WebCore::Animation>(WebCore::Animation*) (ptr=<optimized out>)
    at /usr/src/debug/webkitgtk-2.14.3/Source/WTF/wtf/PassRefPtr.h:40
#6  0x00007fdf13c95a13 in WTF::RefPtr<WebCore::Animation>::~RefPtr() (this=0x7fde7981b600, __in_chrg=<optimized out>)
    at /usr/src/debug/webkitgtk-2.14.3/Source/WTF/wtf/RefPtr.h:62
#7  0x00007fdf13c95a13 in WTF::VectorDestructor<true, WTF::RefPtr<WebCore::Anima---Type <return> to continue, or q <return> to quit---
tion> >::destruct(WTF::RefPtr<WebCore::Animation>*, WTF::RefPtr<WebCore::Animation>*) (end=0x7fde7981b608, begin=<optimized out>)
    at /usr/src/debug/webkitgtk-2.14.3/Source/WTF/wtf/Vector.h:60
#8  0x00007fdf13c95a13 in WTF::VectorTypeOperations<WTF::RefPtr<WebCore::Animation> >::destruct(WTF::RefPtr<WebCore::Animation>*, WTF::RefPtr<WebCore::Animation>*) (end=<optimized out>, begin=<optimized out>)
    at /usr/src/debug/webkitgtk-2.14.3/Source/WTF/wtf/Vector.h:224
#9  0x00007fdf13c95a13 in WTF::Vector<WTF::RefPtr<WebCore::Animation>, 0ul, WTF::CrashOnOverflow, 16ul>::shrink(unsigned long) (size=0, this=0x7fddf79cb570)
    at /usr/src/debug/webkitgtk-2.14.3/Source/WTF/wtf/Vector.h:1023
#10 0x00007fdf13c95a13 in WTF::Vector<WTF::RefPtr<WebCore::Animation>, 0ul, WTF::CrashOnOverflow, 16ul>::~Vector() (this=0x7fddf79cb570, __in_chrg=<optimized out>) at /usr/src/debug/webkitgtk-2.14.3/Source/WTF/wtf/Vector.h:631

Full backtrace attached.

[Michael Catanzaro]

Only have two reports of this total, but I'm sure I've seen it many more times than that.

[Antoine Quint]

Michael, given this was filed in 2017, I'm going to close this, but please re-open, preferably with a test case, if you see this again.