From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Thu, 25 Apr 2019 05:30:41 +0000 (+0200)
Subject: efi_loader: parameter check CreateEventEx()
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=751e928d07ae6ddb2b770b3a4c7f74fd6f2a5a64;p=u-boot.git

efi_loader: parameter check CreateEventEx()

CreateEvent() and CreateEventEx() should check that a notify function is
provided for either of EVT_NOTIFY_SIGNAL or EVT_NOTIFY_WAIT.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---

diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 601b0a2cb8..a72cbe1559 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -618,7 +618,7 @@ efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl,
 	}
 
 	if ((type & (EVT_NOTIFY_WAIT | EVT_NOTIFY_SIGNAL)) &&
-	    (is_valid_tpl(notify_tpl) != EFI_SUCCESS))
+	    (!notify_function || is_valid_tpl(notify_tpl) != EFI_SUCCESS))
 		return EFI_INVALID_PARAMETER;
 
 	evt = calloc(1, sizeof(struct efi_event));