Bug 11713 – REGRESSION: Crash at WebCore::HTMLSelectElement::updateListBoxSelection() when dragging scrollbar in a Native List box (multiple)

• Status: RESOLVED
• Resolution: FIXED
• Component: Forms

[Chris Petersen]

11/29/06 7:07 AM Chris Petersen:
* SUMMARY
With r17770 , I'm experiencing a crash when I drag the scroll-bar in a NativeListBox that uses a multiple attribute. I originally found this at http://bugs.webkit.org/query.cgi but have a reduction.

* STEPS TO REPRODUCE
1. With r17770 or newer webkit nightly, open attached test case "table_test.html"
2. After test case opens, click  on the scroll bar and drag the cursor so that it passes over the scrollarrow icon at the bottom of List box. 
3. With the mouse still down, continue to move the cursor outside of the bottom area of the list box
4. A crash occurs

* RESULTS
No crash should occur but does.

* REGRESSION
Yes


Date/Time:      2006-11-29 07:01:01.605 -0800
OS Version:     10.4.8 (Build 8L2127)
Report Version: 4

Command: Safari
Path:    /Volumes/Tiger/symroots//Release/Safari.app/Contents/MacOS/Safari
Parent:  bash [204]

Version: 3.0 (521.31)

PID:    649
Thread: 0

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x00000000

Thread 0 Crashed:
0   com.apple.WebCore        	0x950757e8 WebCore::HTMLSelectElement::updateListBoxSelection(bool) + 244
1   com.apple.WebCore        	0x952ca506 WebCore::RenderListBox::autoscroll() + 314
2   com.apple.WebCore        	0x9541bcf0 WebCore::Timer<WebCore::EventHandler>::fired() + 72
3   com.apple.WebCore        	0x9519109c WebCore::TimerBase::fireTimers(double, WTF::Vector<WebCore::TimerBase*, (unsigned long)0> const&) + 74
4   com.apple.WebCore        	0x95191178 WebCore::TimerBase::sharedTimerFired() + 144
5   com.apple.CoreFoundation 	0x9082a822 CFRunLoopRunSpecific + 3341
6   com.apple.CoreFoundation 	0x90829b0e CFRunLoopRunInMode + 61
7   com.apple.HIToolbox      	0x92dc9bef RunCurrentEventLoopInMode + 285
8   com.apple.HIToolbox      	0x92dc92fd ReceiveNextEventCommon + 385
9   com.apple.HIToolbox      	0x92dc9154 BlockUntilNextEventMatchingListInMode + 81
10  com.apple.AppKit         	0x9326e465 _DPSNextEvent + 572
11  com.apple.AppKit         	0x9326e056 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 137
12  com.apple.Safari         	0x00009b35 0x1000 + 35637
13  com.apple.AppKit         	0x93267ddb -[NSApplication run] + 512
14  com.apple.AppKit         	0x9325bd2f NSApplicationMain + 573
15  com.apple.Safari         	0x000055fe 0x1000 + 17918
16  com.apple.Safari         	0x0005356d 0x1000 + 337261

Thread 1:
0   libSystem.B.dylib        	0x90024427 semaphore_wait_signal_trap + 7
1   com.apple.Foundation     	0x926432f8 -[NSConditionLock lockWhenCondition:] + 39
2   com.apple.Syndication    	0x9a4e7966 -[AsyncDB _run:] + 181
3   com.apple.Foundation     	0x925ed36c forkThreadForFunction + 123
4   libSystem.B.dylib        	0x90023d87 _pthread_body + 84

Thread 2:
0   libSystem.B.dylib        	0x90009857 mach_msg_trap + 7
1   com.apple.CoreFoundation 	0x9082a2f3 CFRunLoopRunSpecific + 2014
2   com.apple.CoreFoundation 	0x90829b0e CFRunLoopRunInMode + 61
3   com.apple.Foundation     	0x92622a9b +[NSURLConnection(NSURLConnectionInternal) _resourceLoadLoop:] + 259
4   com.apple.Foundation     	0x925ed36c forkThreadForFunction + 123
5   libSystem.B.dylib        	0x90023d87 _pthread_body + 84

Thread 3:
0   libSystem.B.dylib        	0x90009857 mach_msg_trap + 7
1   com.apple.CoreFoundation 	0x9082a2f3 CFRunLoopRunSpecific + 2014
2   com.apple.CoreFoundation 	0x90829b0e CFRunLoopRunInMode + 61
3   com.apple.Foundation     	0x92649c4e +[NSURLCache _diskCacheSyncLoop:] + 206
4   com.apple.Foundation     	0x925ed36c forkThreadForFunction + 123
5   libSystem.B.dylib        	0x90023d87 _pthread_body + 84

Thread 0 crashed with X86 Thread State (32-bit):
  eax: 0x00000000    ebx: 0x95075702 ecx: 0x00507800 edx: 0x00507800
  edi: 0x00523280    esi: 0x00000000 ebp: 0xbfffe9f8 esp: 0xbfffe9c0
   ss: 0x0000001f    efl: 0x00010246 eip: 0x950757e8  cs: 0x00000017
   ds: 0x0000001f     es: 0x0000001f  fs: 0x00000000  gs: 0x00000037

Binary Images Description:
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Model: M9ADP1,1, BootROM AAPLM091.0056.B00, 2 processors, Intel Core Duo, 2.16 GHz, 1 GB
Graphics: ATI Radeon X1600, ATY,RadeonX1600, PCIe, 256 MB
Memory Module: BANK 1/DIMM1, 1 GB, DDR2 SDRAM, 667 MHz
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x86), 0.1.27
Bluetooth: Version 1.7.9f12, 2 service, 1 devices, 1 incoming serial ports
Network Service: Built-in Ethernet, Ethernet, en0
Network Service: AirPort, AirPort, en1
Serial ATA Device: Hitachi HTS721010G9SA00, 93.16 GB
Parallel ATA Device: MATSHITADVD-R   UJ-846
USB Device: Built-in iSight, Micron, Up to 480 Mb/sec, 500 mA
USB Device: Bluetooth HCI, Up to 12 Mb/sec, 500 mA
USB Device: IR Receiver, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA
USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, Up to 12 Mb/sec, 500 mA

[Chris Petersen]

Created attachment 11668 [details]
List box test case

[Adele Peterson]

Chris- can you still repro after Darin's overflow fix?

[Chris Petersen]

This issue no longer occurs with r18004 (which includes Darin's fix).