Hao Wu 8c3e4688e0 ShellPkg/Shell: Avoid reading content beyond string boundary
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=690

Within function EfiShellGetDevicePathFromFilePath(), when the input
parameter 'Path' string is like:
"FS0:"

It is possible for the below statement:
"if (*(Path+StrLen(MapName)+1) == CHAR_NULL) {"

to read the content 1 byte beyond the string boundary (both 'Path' and
'MapName' will be FS0: in this case).

This commit adds additional checks to avoid this.

Cc: Steven Shi <steven.shi@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
2017-09-21 14:06:06 +08:00
2014-10-14 16:08:15 +00:00

EDK II Project

A modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications from www.uefi.org.

Contributions to the EDK II open source project are covered by the TianoCore Contribution Agreement 1.1

The majority of the content in the EDK II open source project uses a BSD 2-Clause License. The EDK II open source project contains the following components that are covered by additional licenses:

The EDK II Project is composed of packages. The maintainers for each package are listed in Maintainers.txt.

Resources

Description
Acidanthera UEFI Development Kit based on EDK II edk2-stable202405
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