[PATCH] ShellPkg: Multiple Coverity issues were found from EDK2 ShellPkg.

["Kalaivani P" <kalaivanip@ami.com>]

Attached is the report for Coverity issues identified in ShellPkg based
on edk2-stable202205.

Cc: Srinivasan Mani <srinivasanm@ami.com>
Cc: Sundaresan Selvaraj <sundaresans@ami.com>
Cc: Arun k <arunk@ami.com>
Signed-off-by: Kalaivani P <kalaivanip@ami.com>
---
 ShellPkg/Application/Shell/ShellProtocol.c   |  5 ++++-
 ShellPkg/Library/UefiShellLib/UefiShellLib.c | 11 ++++++++---
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/ShellPkg/Application/Shell/ShellProtocol.c b/ShellPkg/Application/Shell/ShellProtocol.c
index e6d20ab164..e4ac7f9554 100644
--- a/ShellPkg/Application/Shell/ShellProtocol.c
+++ b/ShellPkg/Application/Shell/ShellProtocol.c
@@ -4,6 +4,7 @@


   (C) Copyright 2014 Hewlett-Packard Development Company, L.P.<BR>

   (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>

+  Copyright (c) 1985 - 2022, American Megatrends International LLC.<BR>

   Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>

   SPDX-License-Identifier: BSD-2-Clause-Patent



@@ -2524,7 +2525,9 @@ ShellSearchHandle (
               EfiShellClose (ShellInfoNode->Handle);

               ShellInfoNode->Handle = NULL;

             }

-          } else if (!EFI_ERROR (Status)) {

+

+           } else if (!EFI_ERROR (Status) && (ShellInfoNode->FullName != NULL)) {

+

             //

             // should be a file

             //

diff --git a/ShellPkg/Library/UefiShellLib/UefiShellLib.c b/ShellPkg/Library/UefiShellLib/UefiShellLib.c
index a72767bd86..fd76da8ea5 100644
--- a/ShellPkg/Library/UefiShellLib/UefiShellLib.c
+++ b/ShellPkg/Library/UefiShellLib/UefiShellLib.c
@@ -3,6 +3,7 @@


   (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>

   Copyright 2016-2018 Dell Technologies.<BR>

+  Copyright (c) 1985 - 2022, American Megatrends International LLC.<BR>

   Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>

   SPDX-License-Identifier: BSD-2-Clause-Patent



@@ -1761,6 +1762,9 @@ ShellCloseFileMetaArg (
   // ASSERT that ListHead is not NULL

   //

   ASSERT (ListHead != NULL);

+  if (ListHead == NULL) {

+    return (SHELL_INVALID_PARAMETER);

+  }



   //

   // Check for UEFI Shell 2.0 protocols

@@ -4377,9 +4381,10 @@ ShellFileHandleReadLine (
     return (EFI_INVALID_PARAMETER);

   }



-  if (Buffer == NULL) {

-    ASSERT (*Size == 0);

-  } else {

+  if ((Buffer == NULL) && (*Size != 0)) {

+    return EFI_INVALID_PARAMETER;

+  }

+  else {

     *Buffer = CHAR_NULL;

   }



--
2.36.0.windows.1
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