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Prevent chaining of null GstBuffers and avoid seeks while appends are in progress.
eocanha
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Jun 12, 2015
Applied all the Philippe's suggestions to the QtWebKit pull request here too.
emutavchi
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in emutavchi/WebKitForWayland
Dec 4, 2015
Closed
dwrobel
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Apr 10, 2019
strlen() is invoked on strings located in UserAgentStyleSheetsData.cpp, however strings in those tables doesn't not contain valid C string with '\0' character in the end. GDB callstack excerpt: (complete is available at WebPlatformForEmbedded#592) (gdb) bt #0 0x00007fb2aae415d0 in __sanitizer::Die() () at ../../../../libsanitizer/sanitizer_common/sanitizer_termination.cc:49 WebPlatformForEmbedded#1 0x00007fb2aae23ce5 in __asan::ScopedInErrorReport::~ScopedInErrorReport() (this=<optimized out>, __in_chrg=<optimized out>) at ../../../../libsanitizer/asan/asan_report.cc:181 WebPlatformForEmbedded#2 0x00007fb2aae23ce5 in __asan::ReportGenericError(unsigned long, unsigned long, unsigned long, unsigned long, bool, unsigned long, unsigned int, bool) (pc=<optimized out>, bp=bp@entry=140729000272496, sp=sp@entry=140729000270360, addr=addr@entry=140405332238509, is_write=is_write@entry=false, access_size=access_size@entry=27118, exp=0, fatal=false) at ../../../../libsanitizer/asan/asan_report.cc:397 WebPlatformForEmbedded#3 0x00007fb2aadd62ac in __interceptor_strlen(char const*) (s=<optimized out>) at ../../../../libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:301 WebPlatformForEmbedded#4 0x00007fb2a95309ba in WTF::StringImpl::createFromLiteral(char const*) (characters=0x7fb2a9f376c0 <WebCore::mediaControlsBaseUserAgentStyleSheet> "audio { width: 200px; height: 25px; } body:-webkit-full-page-media { background-color: rgb(38, 38, 38); } video:-webkit-full-page-media { margin: auto; position: absolute; top: 0; right: 0; bottom: 0;"...) at ../Source/WTF/wtf/text/StringImpl.cpp:158 WebPlatformForEmbedded#5 0x00007fb2a957ff4c in WTF::String::String(WTF::ASCIILiteral) (this=0x7ffe061225d0, characters=...) at ../Source/WTF/wtf/text/WTFString.h:734 WebPlatformForEmbedded#6 0x00007fb2a4b25f21 in WebCore::RenderThemeWPE::mediaControlsStyleSheet() (this=<optimized out>) at ../Source/WTF/wtf/text/WTFString.h:733 (gdb) fr 4 158 return createFromLiteral(characters, strlen(characters)); (gdb) l 153 return adoptRef(*new StringImpl(reinterpret_cast<const LChar*>(characters), length, ConstructWithoutCopying)); 154 } 155 156 Ref<StringImpl> StringImpl::createFromLiteral(const char* characters) 157 { 158 return createFromLiteral(characters, strlen(characters)); 159 } Signed-off-by: Damian Wrobel <dwrobel@ertelnet.rybnik.pl>
dwrobel
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Apr 10, 2019
strlen() is invoked on strings located in UserAgentStyleSheetsData.cpp, however strings in those tables doesn't not contain valid C string with '\0' character in the end. GDB callstack excerpt: (complete is available at WebPlatformForEmbedded#592) (gdb) bt #0 0x00007fb2aae415d0 in __sanitizer::Die() () at ../../../../libsanitizer/sanitizer_common/sanitizer_termination.cc:49 WebPlatformForEmbedded#1 0x00007fb2aae23ce5 in __asan::ScopedInErrorReport::~ScopedInErrorReport() (this=<optimized out>, __in_chrg=<optimized out>) at ../../../../libsanitizer/asan/asan_report.cc:181 WebPlatformForEmbedded#2 0x00007fb2aae23ce5 in __asan::ReportGenericError(unsigned long, unsigned long, unsigned long, unsigned long, bool, unsigned long, unsigned int, bool) (pc=<optimized out>, bp=bp@entry=140729000272496, sp=sp@entry=140729000270360, addr=addr@entry=140405332238509, is_write=is_write@entry=false, access_size=access_size@entry=27118, exp=0, fatal=false) at ../../../../libsanitizer/asan/asan_report.cc:397 WebPlatformForEmbedded#3 0x00007fb2aadd62ac in __interceptor_strlen(char const*) (s=<optimized out>) at ../../../../libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:301 WebPlatformForEmbedded#4 0x00007fb2a95309ba in WTF::StringImpl::createFromLiteral(char const*) (characters=0x7fb2a9f376c0 <WebCore::mediaControlsBaseUserAgentStyleSheet> "audio { width: 200px; height: 25px; } body:-webkit-full-page-media { background-color: rgb(38, 38, 38); } video:-webkit-full-page-media { margin: auto; position: absolute; top: 0; right: 0; bottom: 0;"...) at ../Source/WTF/wtf/text/StringImpl.cpp:158 WebPlatformForEmbedded#5 0x00007fb2a957ff4c in WTF::String::String(WTF::ASCIILiteral) (this=0x7ffe061225d0, characters=...) at ../Source/WTF/wtf/text/WTFString.h:734 WebPlatformForEmbedded#6 0x00007fb2a4b25f21 in WebCore::RenderThemeWPE::mediaControlsStyleSheet() (this=<optimized out>) at ../Source/WTF/wtf/text/WTFString.h:733 (gdb) fr 4 158 return createFromLiteral(characters, strlen(characters)); (gdb) l 153 return adoptRef(*new StringImpl(reinterpret_cast<const LChar*>(characters), length, ConstructWithoutCopying)); 154 } 155 156 Ref<StringImpl> StringImpl::createFromLiteral(const char* characters) 157 { 158 return createFromLiteral(characters, strlen(characters)); 159 } Signed-off-by: Damian Wrobel <dwrobel@ertelnet.rybnik.pl>
dwrobel
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Apr 23, 2019
strlen() is invoked on strings located in UserAgentStyleSheetsData.cpp, however strings in those tables doesn't not contain valid C string with '\0' character in the end. GDB callstack excerpt: (complete is available at WebPlatformForEmbedded#592) (gdb) bt #0 0x00007fb2aae415d0 in __sanitizer::Die() () at ../../../../libsanitizer/sanitizer_common/sanitizer_termination.cc:49 WebPlatformForEmbedded#1 0x00007fb2aae23ce5 in __asan::ScopedInErrorReport::~ScopedInErrorReport() (this=<optimized out>, __in_chrg=<optimized out>) at ../../../../libsanitizer/asan/asan_report.cc:181 WebPlatformForEmbedded#2 0x00007fb2aae23ce5 in __asan::ReportGenericError(unsigned long, unsigned long, unsigned long, unsigned long, bool, unsigned long, unsigned int, bool) (pc=<optimized out>, bp=bp@entry=140729000272496, sp=sp@entry=140729000270360, addr=addr@entry=140405332238509, is_write=is_write@entry=false, access_size=access_size@entry=27118, exp=0, fatal=false) at ../../../../libsanitizer/asan/asan_report.cc:397 WebPlatformForEmbedded#3 0x00007fb2aadd62ac in __interceptor_strlen(char const*) (s=<optimized out>) at ../../../../libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:301 WebPlatformForEmbedded#4 0x00007fb2a95309ba in WTF::StringImpl::createFromLiteral(char const*) (characters=0x7fb2a9f376c0 <WebCore::mediaControlsBaseUserAgentStyleSheet> "audio { width: 200px; height: 25px; } body:-webkit-full-page-media { background-color: rgb(38, 38, 38); } video:-webkit-full-page-media { margin: auto; position: absolute; top: 0; right: 0; bottom: 0;"...) at ../Source/WTF/wtf/text/StringImpl.cpp:158 WebPlatformForEmbedded#5 0x00007fb2a957ff4c in WTF::String::String(WTF::ASCIILiteral) (this=0x7ffe061225d0, characters=...) at ../Source/WTF/wtf/text/WTFString.h:734 WebPlatformForEmbedded#6 0x00007fb2a4b25f21 in WebCore::RenderThemeWPE::mediaControlsStyleSheet() (this=<optimized out>) at ../Source/WTF/wtf/text/WTFString.h:733 (gdb) fr 4 158 return createFromLiteral(characters, strlen(characters)); (gdb) l 153 return adoptRef(*new StringImpl(reinterpret_cast<const LChar*>(characters), length, ConstructWithoutCopying)); 154 } 155 156 Ref<StringImpl> StringImpl::createFromLiteral(const char* characters) 157 { 158 return createFromLiteral(characters, strlen(characters)); 159 } Signed-off-by: Damian Wrobel <dwrobel@ertelnet.rybnik.pl>
This was referenced Mar 30, 2021
magomez
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Jun 19, 2024
…te-isolation rdar://127515199 https://bugs.webkit.org/show_bug.cgi?id=273715 Unreviewed test gardening. * LayoutTests/platform/mac-site-isolation/TestExpectations: Canonical link: https://commits.webkit.org/278516@main
magomez
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Jun 19, 2024
…volume scrubber on a video player https://bugs.webkit.org/show_bug.cgi?id=275469 <rdar://129080145> Reviewed by Antti Koivisto. 1. In EventHandler::mouseDragged we dispatch the "mouse move" event 2. JS triggers some mutation which makes the tree dirty 3. later in EventHandler::handleMouseMoveEvent() we call EventHandler::handleMouseDraggedEvent() (tree is dirty) which, through a few layers of functions calls VisiblePosition::canonicalPosition() 4. VisiblePosition::canonicalPosition() needs a clean tree so it calls Document::updateLayout() which is turn destroys some renderers (see #2) 5. In-between EventHandler::handleMouseDraggedEvent() and VisiblePosition::canonicalPosition(), we CheckPtr a renderer which gets destroyed at #4. The fix (what we normally do with cases like this) is to make sure we clean the tree before entering VisiblePosition. * Source/WebCore/page/EventHandler.cpp: (WebCore::EventHandler::handleMouseDraggedEvent): Canonical link: https://commits.webkit.org/280013@main
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This already addresses some of the suggestions of the review for the original QtWebKit pull request.