Version-Release number of selected component:
webkitgtk4-2.10.7-1.fc23

Additional info:
reporter:       libreport-2.6.4
backtrace_rating: 4
cmdline:        /usr/libexec/webkit2gtk-4.0/WebKitNetworkProcess 13
crash_function: __memcpy_sse2_unaligned
executable:     /usr/libexec/webkit2gtk-4.0/WebKitNetworkProcess
global_pid:     5314
kernel:         4.3.4-300.fc23.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 __memcpy_sse2_unaligned at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:35
 #1 memcpy at /usr/include/bits/string3.h:53
 #2 WebKit::NetworkCache::Data::<lambda(const uint8_t*, size_t)>::operator() at /usr/src/debug/webkitgtk-2.10.7/Source/WebKit2/NetworkProcess/cache/NetworkCacheData.cpp:57
 #3 std::_Function_handler<bool(unsigned char const*, long unsigned int), WebKit::NetworkCache::Data::mapToFile(char const*) const::<lambda(const uint8_t*, size_t)> >::_M_invoke(const std::_Any_data &, <unknown type in /usr/lib/debug/usr/lib64/libwebkit2gtk-4.0.so.37.11.10.debug, CU 0xa8b67e7, DIE 0xa8c49f8>, <unknown type in /usr/lib/debug/usr/lib64/libwebkit2gtk-4.0.so.37.11.10.debug, CU 0xa8b67e7, DIE 0xa8c49fd>) at /usr/include/c++/5.3.1/functional:1857
 #4 std::function<bool (unsigned char const*, unsigned long)>::operator()(unsigned char const*, unsigned long) const at /usr/include/c++/5.3.1/functional:2271
 #5 WebKit::NetworkCache::Data::apply(std::function<bool (unsigned char const*, unsigned long)> const&&) const at /usr/src/debug/webkitgtk-2.10.7/Source/WebKit2/NetworkProcess/cache/NetworkCacheDataSoup.cpp:78
 #6 WebKit::NetworkCache::Data::mapToFile at /usr/src/debug/webkitgtk-2.10.7/Source/WebKit2/NetworkProcess/cache/NetworkCacheData.cpp:60
 #7 WebKit::NetworkCache::BlobStorage::add at /usr/src/debug/webkitgtk-2.10.7/Source/WebKit2/NetworkProcess/cache/NetworkCacheBlobStorage.cpp:107
 #8 WebKit::NetworkCache::Storage::storeBodyAsBlob at /usr/src/debug/webkitgtk-2.10.7/Source/WebKit2/NetworkProcess/cache/NetworkCacheStorage.cpp:458
 #9 WebKit::NetworkCache::Storage::<lambda()>::operator() at /usr/src/debug/webkitgtk-2.10.7/Source/WebKit2/NetworkProcess/cache/NetworkCacheStorage.cpp:692