[Webkit-unassigned] [Bug 162676] New: WebCore::Page::sessionID is crashing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=162676

            Bug ID: 162676
           Summary: WebCore::Page::sessionID is crashing
    Classification: Unclassified
           Product: WebKit
           Version: Safari 10
          Hardware: iPhone / iPad
                OS: iOS 9.3
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dmitry at breezy.com

One of our customers faced with the crash during the authentication step in our iOS application. The stack trace follows below:
#10. Crashed: WebThread
0  WebCore                        0x24f4eec8 WebCore::Page::sessionID() const
1  WebKitLegacy                   0x2538f033 WebFrameNetworkingContext::storageSession() const + 18
2  WebCore                        0x25071405 WebCore::ResourceHandle::tryHandlePasswordBasedAuthentication(WebCore::AuthenticationChallenge const&) + 556
3  WebCore                        0x2507113f WebCore::ResourceHandle::didReceiveAuthenticationChallenge(WebCore::AuthenticationChallenge const&) + 58
4  WebCore                        0x251ad5b3 WebCore::SynchronousResourceHandleCFURLConnectionDelegate::didReceiveChallenge(_CFURLAuthChallenge*) + 42
5  CFNetwork                      0x215d2d91 ___ZN27URLConnectionClient_Classic51_delegate_willSendRequestForAuthenticationChallengeEP19_CFURLAuthChallenge_block_invoke + 432
6  CFNetwork                      0x2168c8b7 ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 70
7  libdispatch.dylib              0x20c3d80f _dispatch_client_callout + 22
8  libdispatch.dylib              0x20c46dbf _dispatch_block_invoke$VARIANT$mp + 446
9  CFNetwork                      0x215bec67 RunloopBlockContext::_invoke_block(void const*, void*) + 18
10 CoreFoundation                 0x20fdec61 CFArrayApplyFunction + 36
11 CFNetwork                      0x215beb4f RunloopBlockContext::perform() + 182
12 CFNetwork                      0x215bea19 MultiplexerSource::perform() + 216
13 CFNetwork                      0x215be8b1 MultiplexerSource::_perform(void*) + 48
14 CoreFoundation                 0x21091dff __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
15 CoreFoundation                 0x210919ed __CFRunLoopDoSources0 + 452
16 CoreFoundation                 0x2108fd5b __CFRunLoopRun + 794
17 CoreFoundation                 0x20fdf229 CFRunLoopRunSpecific + 520
18 CoreFoundation                 0x20fdf015 CFRunLoopRunInMode + 108
19 WebCore                        0x247a9faf RunWebThread(void*) + 422
20 libsystem_pthread.dylib        0x20e0385b _pthread_body + 138
21 libsystem_pthread.dylib        0x20e037cf _pthread_start + 110
22 libsystem_pthread.dylib        0x20e01724 thread_start + 8

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