Changeset 258677 in webkit

Timestamp:

Mar 18, 2020 8:07:05 PM (4 years ago)

Author:

sbarati@apple.com

Message:

SharedMemory::Handle::decode shouldn't check rounded size
​https://bugs.webkit.org/show_bug.cgi?id=209263

Reviewed by Sam Weinig.

• Platform/cocoa/SharedMemoryCocoa.cpp:

(WebKit::SharedMemory::Handle::decode):
(WebKit::SharedMemory::map):

Location:

trunk/Source/WebKit

Files:

• ChangeLog (modified) (1 diff)
• Platform/cocoa/SharedMemoryCocoa.cpp (modified) (2 diffs)

trunk/Source/WebKit/ChangeLog

@@ +1 @@
+2020-03-18  Saam Barati  <sbarati@apple.com>
+
+        SharedMemory::Handle::decode shouldn't check rounded size
+        https://bugs.webkit.org/show_bug.cgi?id=209263
+
+        Reviewed by Sam Weinig.
+
+        * Platform/cocoa/SharedMemoryCocoa.cpp:
+        (WebKit::SharedMemory::Handle::decode):
+        (WebKit::SharedMemory::map):
+
 2020-03-18  Fujii Hironori  <Hironori.Fujii@sony.com>
 

trunk/Source/WebKit/Platform/cocoa/SharedMemoryCocoa.cpp

@@ -94 +94 @@
     if (!decoder.decode(size))
         return false;
-    if (size != round_page(size))
-        return false;
 
     IPC::MachPort machPort;
@@ -195 +193 @@
         return nullptr;
 
-    ASSERT(round_page(handle.m_size) == handle.m_size);
-
     vm_prot_t vmProtection = machProtection(protection);
     mach_vm_address_t mappedAddress = 0;