Bug 47502

Summary: WebKit2 will leak shared memory if the web process crashes after the UI process tries to send it a handle to shared memory
Product: WebKit Reporter: Adam Roben (:aroben) <aroben>
Component: WebKit2Assignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: andersca, liqiong.hao
Priority: P2 Keywords: InRadar
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   

Description Adam Roben (:aroben) 2010-10-11 14:13:09 PDT 
Consider the following scenario:

1. UI process creates some shared memory via SharedMemory::create
2. UI process sends the shared memory to the web process
3. Before the web process receives the shared memory, the web process crashes

At this point, the shared memory has an extra handle open to it (created in step 2) that has been lost and will never be closed. This will result in leaking the shared memory!
Comment 1 Adam Roben (:aroben) 2010-10-11 14:13:33 PDT 
<rdar://problem/8537369>