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From: "Zhang, Shenglei" <shenglei.zhang@intel.com>
To: devel@edk2.groups.io
Cc: Dandan Bi <dandan.bi@intel.com>, Eric Dong <eric.dong@intel.com>
Subject: [PATCH 2/4] MdeModulePkg/HiiDatabaseDxe: Add check for StringPtr
Date: Thu, 17 Oct 2019 11:31:08 +0800	[thread overview]
Message-ID: <20191017033110.12128-3-shenglei.zhang@intel.com> (raw)
In-Reply-To: <20191017033110.12128-1-shenglei.zhang@intel.com>

If the target string doesn't appear in the searched string,
StringPtr will be NULL. So add a check for that.

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
---
 MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c b/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c
index 71ea25bc19bf..f786da8e370a 100644
--- a/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c
+++ b/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c
@@ -909,6 +909,10 @@ CompareAndMergeDefaultString (
   // To find the <AltResp> with AltConfigHdr in AltCfgResp, ignore other <AltResp> which follow it.
   //
   StringPtr = StrStr (*AltCfgResp, AltConfigHdr);
+  if (StringPtr == NULL) {
+    Status = EFI_NOT_FOUND;
+    goto Exit;
+  }
   StringPtrNext = StrStr (StringPtr + 1, L"&GUID");
   if (StringPtrNext != NULL) {
     TempCharA = *StringPtrNext;
-- 
2.18.0.windows.1


  parent reply	other threads:[~2019-10-17  3:31 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-17  3:31 [PATCH 0/4] MdeModulePkg: Add check for variables and return value Zhang, Shenglei
2019-10-17  3:31 ` [PATCH 1/4] MdeModulePkg/EbcDebugger: Add check for Entry and RetEntry Zhang, Shenglei
2019-10-30  7:00   ` Wu, Hao A
2019-10-17  3:31 ` Zhang, Shenglei [this message]
2019-10-17  8:41   ` [PATCH 2/4] MdeModulePkg/HiiDatabaseDxe: Add check for StringPtr Dandan Bi
2019-10-17  3:31 ` [PATCH 3/4] MdeModulePkg/EsrtDxe: Add check for EsrtRepository Zhang, Shenglei
2019-10-30  7:01   ` Wu, Hao A
2019-10-17  3:31 ` [PATCH 4/4] MdeModulePkg/SetupBrowserDxe: Add check for GetBufferForValue() Zhang, Shenglei
2019-10-30  7:01   ` Wu, Hao A

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