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FmpDevicePkg/FmpDependencyLib: Handle version string overflow

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This change recognizes the condition of the DEPEX version string
extending beyond the end of the dependency expression as an error.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Guomin Jiang <guomin.jiang@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Guomin Jiang <guomin.jiang@intel.com>
Reviewed-by: Wei6 Xu <wei6.xu@intel.com>
This commit is contained in:
Michael Kubacki 2020-08-06 12:05:38 -07:00 committed by mergify[bot]
parent c2db6a86a2
commit 8665226464
1 changed files with 1 additions and 0 deletions
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FmpDevicePkg/Library/FmpDependencyLib/FmpDependencyLib.c
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@ -286,6 +286,7 @@ EvaluateDependency (
Iterator += AsciiStrnLenS ((CHAR8 *) Iterator, DependenciesSize - (Iterator - Dependencies->Dependencies));
if (Iterator == (UINT8 *) Dependencies->Dependencies + DependenciesSize) {
DEBUG ((DEBUG_ERROR, "EvaluateDependency: STRING extends beyond end of dependency expression!\n"));
goto Error;
}
break;
case EFI_FMP_DEP_AND: