[PATCH 09/22] ntdll: Downgrade loader lock to shared when calling TLS callbacks.
Paul Gofman
pgofman at codeweavers.com
Fri Oct 1 13:20:54 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 8bcd4e6a237..a7a7089ca66 100644
--- a/dlls/ntdll/loader.c
+++ b/dlls/ntdll/loader.c
@@ -1590,6 +1590,7 @@ static void call_tls_callbacks( HMODULE module, UINT reason )
dir = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
if (!dir || !dir->AddressOfCallBacks) return;
+ lock_loader_downgrade_exclusive();
RtlEnterCriticalSection( &loader_section );
for (callback = (const PIMAGE_TLS_CALLBACK *)dir->AddressOfCallBacks; *callback; callback++)
@@ -1612,6 +1613,7 @@ static void call_tls_callbacks( HMODULE module, UINT reason )
}
RtlLeaveCriticalSection( &loader_section );
+ lock_loader_restore_exclusive();
}
/*************************************************************************
--
2.31.1
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