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Add "win-rt-app" command-line flag to disable MITIGATION_STRICT_HANDLE_CHECKS 

and avoid sandboxed renderer process crash in WinRT apps (issue #2274)
This commit is contained in:
Marshall Greenblatt 2017-09-29 11:17:31 +02:00
parent 531f5a30ef
commit cd60f7c7be
2 changed files with 23 additions and 0 deletions
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5
patch/patch.cfg
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@ -344,4 +344,9 @@ patches = [
# https://bitbucket.org/chromiumembedded/cef/issues/1947
'name': 'extensions_1947',
},
{
# Don't enable sandbox::MITIGATION_STRICT_HANDLE_CHECKS in WinRT apps.
# https://bitbucket.org/chromiumembedded/cef/issues/2274
'name': 'win_rt_2274',
},
]

18
patch/patches/win_rt_2274.patch Normal file
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@ -0,0 +1,18 @@
diff --git content/common/sandbox_win.cc content/common/sandbox_win.cc
index a98c8bd7646b..7c100ff20d34 100644
--- content/common/sandbox_win.cc
+++ content/common/sandbox_win.cc
@@ -782,8 +782,11 @@ sandbox::ResultCode StartSandboxedProcess(
#endif
// Post-startup mitigations.
- mitigations = sandbox::MITIGATION_STRICT_HANDLE_CHECKS |
- sandbox::MITIGATION_DLL_SEARCH_ORDER;
+ mitigations = sandbox::MITIGATION_DLL_SEARCH_ORDER;
+ if (!browser_command_line.HasSwitch("win-rt-app")) {
+ // Don't enable this mitigation in WinRT apps. See issue #2274.
+ mitigations |= sandbox::MITIGATION_STRICT_HANDLE_CHECKS;
+ }
if (base::FeatureList::IsEnabled(features::kWinSboxForceMsSigned))
mitigations |= sandbox::MITIGATION_FORCE_MS_SIGNED_BINS;