MdeModulePkg/UdfDxe: Check 'Component Type' within a Path Component

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1279

According to the ECMA-167 standard (3rd Edition - June 1997), Section
14.16.1.1, valid values are 1 to 5. All other values will be treated as a
corrupted volume.

This commit will add such check within function ResolveSymlink().

Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Paulo Alcantara <palcantara@suse.de>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Hao Wu 2018-10-30 09:06:48 +08:00
parent a0f01e8a22
commit 542b03d0a0
1 changed files with 7 additions and 0 deletions

View File

@ -2257,6 +2257,13 @@ ResolveSymlink (
}
FileName[Index] = L'\0';
break;
default:
//
// According to the ECMA-167 standard (3rd Edition - June 1997), Section
// 14.16.1.1, all other values are reserved.
//
Status = EFI_VOLUME_CORRUPTED;
goto Error_Find_File;
}
//