[PATCH 11/22] ntdll: Downgrade loader lock to shared when calling module enum callbacks.
Paul Gofman
pgofman at codeweavers.com
Fri Oct 1 13:20:56 CDT 2021
Signed-off-by: Paul Gofman <pgofman at codeweavers.com>
---
dlls/ntdll/loader.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/dlls/ntdll/loader.c b/dlls/ntdll/loader.c
index dae4ce13b44..9397c927c3e 100644
--- a/dlls/ntdll/loader.c
+++ b/dlls/ntdll/loader.c
@@ -1907,6 +1907,7 @@ NTSTATUS WINAPI LdrEnumerateLoadedModules( void *unknown, LDRENUMPROC callback,
return STATUS_INVALID_PARAMETER;
lock_loader_exclusive();
+ lock_loader_downgrade_exclusive();
RtlEnterCriticalSection( &loader_section );
mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
@@ -1916,6 +1917,7 @@ NTSTATUS WINAPI LdrEnumerateLoadedModules( void *unknown, LDRENUMPROC callback,
if (stop) break;
}
RtlLeaveCriticalSection( &loader_section );
+ lock_loader_restore_exclusive();
unlock_loader();
return STATUS_SUCCESS;
}
--
2.31.1
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