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-rw-r--r--SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableSmm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableSmm.c b/SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableSmm.c
index de0a32ee8..c8ee79a1e 100644
--- a/SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableSmm.c
+++ b/SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableSmm.c
@@ -431,7 +431,7 @@ SmmVariableHandler (
return EFI_SUCCESS;
}
- if (*CommBufferSize < sizeof(SMM_VARIABLE_COMMUNICATE_HEADER) - 1) {
+ if (*CommBufferSize < SMM_VARIABLE_COMMUNICATE_HEADER_SIZE) {
return EFI_SUCCESS;
}