260098 2023-08-11 14:49:24 -0700 Regression(266049@main) Crash in MIMETypeRegistry::preferredExtensionForMIMEType 2023-08-11 17:00:45 -0700 1 1 1 Unclassified WebKit Forms WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=258467 InRadar P2 Normal --- 1 ajuma cdumez akeerthi cdumez heycam webkit-bug-importer wenson_hsieh oldest_to_newest 1970811 0 ajuma 2023-08-11 14:49:24 -0700 Chrome for iOS is getting a significant number of reports of a new crash in the latest iOS 17 seed (21A5303d). This is the top crash for users on that build. We don't have steps to reproduce, but based on the stack this appears to be a regression from https://bugs.webkit.org/show_bug.cgi?id=258467. 0x000000019a9ae2d8 (WebCore + 0x001b62d8) WTF::ASCIICaseInsensitiveHash::hash(WTF::StringImpl&) 0x000000019b31bd00 (WebCore + 0x00b23d00) WebCore::MIMETypeRegistry::preferredExtensionForMIMEType(WTF::String const&) 0x000000019c4cc218 (WebCore + 0x0000000001cd4218) WebCore::MIMETypeRegistry::appendFileExtensionIfNecessary(WTF::String const&, WTF::String const&) 0x000000019d88038c (WebKit + 0x006e238c) WebKit::DownloadProxy::decideDestinationWithSuggestedFilename(WebCore::ResourceResponse const&, WTF::String&&, WTF::CompletionHandler<void (WTF::String, WebKit::SandboxExtensionHandle, WebKit::AllowOverwrite)>&&) 0x000000019d20a630 (WebKit + 0x0006c630) WebKit::DownloadProxy::didReceiveMessage(IPC::Connection&, IPC::Decoder&) 0x000000019dc58fd8 (WebKit + 0x00abafd8) IPC::MessageReceiverMap::dispatchMessage(IPC::Connection&, IPC::Decoder&) 0x000000019d891fd4 (WebKit + 0x006f3fd4) WebKit::NetworkProcessProxy::didReceiveMessage(IPC::Connection&, IPC::Decoder&) 0x000000019dc54660 (WebKit + 0x00ab6660) IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >) 0x000000019dc57168 (WebKit + 0x00ab9168) WTF::Detail::CallableWrapper<IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_15, void>::call() 0x000000019de3d230 (JavaScriptCore + 0x00050230) WTF::RunLoop::performWork() 0x000000019de3e100 (JavaScriptCore + 0x00051100) WTF::RunLoop::performWork(void*) 0x00000001887bfb68 (CoreFoundation + 0x00037b68) __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ 0x00000001887bede4 (CoreFoundation + 0x00036de4) __CFRunLoopDoSource0 0x00000001887bd5f8 (CoreFoundation + 0x000355f8) __CFRunLoopDoSources0 0x00000001887bc2d4 (CoreFoundation + 0x000342d4) __CFRunLoopRun 0x00000001887bbeb4 (CoreFoundation + 0x00033eb4) CFRunLoopRunSpecific 0x00000001ca2585e8 (GraphicsServices + 0x000035e8) GSEventRunModal 0x000000018abd26b0 (UIKitCore + 0x0022f6b0) -[UIApplication _run] 0x000000018abd1cec (UIKitCore + 0x0022ecec) UIApplicationMain 0x00000001020877cc (Chrome -chrome_exe_main.mm:68) (anonymous namespace)::RunUIApplicationMain(int, char**) 0x00000001020877cc (Chrome -chrome_exe_main.mm:120) main 0x00000001aae3fd40 (dyld + 0x00005d40) start 1970813 1 cdumez 2023-08-11 14:53:24 -0700 *** This bug has been marked as a duplicate of bug 259622 *** 1970815 2 cdumez 2023-08-11 14:54:45 -0700 Actually may be slightly different, un-duping. 1970828 3 webkit-bug-importer 2023-08-11 15:23:08 -0700 <rdar://problem/113774128> 1970833 4 cdumez 2023-08-11 15:43:19 -0700 Pull request: https://github.com/WebKit/WebKit/pull/16626 1970849 5 ews-feeder 2023-08-11 17:00:43 -0700 Committed 266837@main (97c1b7fd0b15): <https://commits.webkit.org/266837@main> Reviewed commits have been landed. Closing PR #16626 and removing active labels.