Closed Bug 310426 Opened 18 years ago Closed 18 years ago

Crash [@ DoDeletingFrameSubtree] involving <select> with position:absolute child

Categories

(Core :: Layout: Form Controls, defect, P1)

Product:
Core
Component:
Layout: Form Controls
Type:
defect

Tracking

()

Status:
RESOLVED FIXED
Milestone:
mozilla1.9alpha1

People

(Reporter: jruderman, Assigned: mrbkap)

References

Details

(Keywords: crash, testcase, Whiteboard: [sg:critical?] post 1.8-branch)

Crash Data

Attachments

(1 file)

XHTML testcase, crashes when unloaded
135 bytes, application/xhtml+xml
Details 
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20050928
Firefox/1.6a1

Steps to reproduce:
1. Load the testcase.
2. Close the tab, close the window, or reload.

Result: Crash [@ DoDeletingFrameSubtree]. TB9854206G.

I think this crash is exploitable.  (I know there is *an* exploitable crash [@
DoDeletingFrameSubtree], but I'm not sure *this* crash is exploitable.)

I can't reproduce this crash on the Gecko 1.8 branch.

    
  
Whiteboard: [sg:fix]?

    
    

    
  
Bug 310520, "Removing <select> with <input> descendant gives 'ASSERTION:
RemovedAsPrimaryFrame called after PreDestroy'", might be related.

    
    

    
  
This might be a dup of bug 310505.
Blocks: 117984
Blocks: 310505

    
    

    
  
RemoveMappingsForFrameSubtree() will in some situations be called
with frames that already had there mappings removed - which
eventually leads to a crash DoDeletingFrameSubtree().
This is similar (but not same) as bug 310505 where the placeholder still has
a valid OOF pointer but the OOF have been destroyed.
Bug 310520 probably has the same underlying cause as well.
I will have a look at this after bug 310638, unless someone beats me to it...
Blocks: 310520
OS: Windows XP → All
Hardware: PC → All
Depends on: 310638

    
  
Assignee: nobody → mats.palmgren
Blocks: 316636

    
    

    
  
Backing out the patch for bug 117984 does fix the testcase here as it does for bug 310505.
Flags: blocking1.9a1?

    
  
No longer blocks: 316636
Blocks: 318451

    
  
Depends on: 315752

    
    

    
  
Blake - can you take a look?
Assignee: mats.palmgren → mrbkap

    
    

    
  
I guess I should mention that Boris's patch for bug 315752 fixes this (as well as bug 310505 and bug 310520); that's why I added the dependency.
Whiteboard: [sg:fix]? → [sg:critical?] post 1.8-branch

    
  
Priority: -- → P1
Target Milestone: --- → mozilla1.9alpha

    
    

    
  
This should be fixed by the checkin for bug 315752.
Status: NEW → RESOLVED
Closed: 18 years ago
Resolution: --- → FIXED
No longer blocks: 318451
Flags: testcase+
Flags: blocking1.9a1?
Group: security
Flags: wanted1.8.1.x-
Flags: wanted1.8.0.x-
Flags: in-testsuite+ → in-testsuite?

    
    

    
  
Crashtest checked in.
Flags: in-testsuite? → in-testsuite+
Crash Signature: [@ DoDeletingFrameSubtree]

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