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MdeModulePkg: Fix conditionally uninitialized variables

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Fixes CodeQL alerts for CWE-457:
https://cwe.mitre.org/data/definitions/457.html

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Erich McMillan <emcmillan@microsoft.com>
Cc: Guomin Jiang <guomin.jiang@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael Kubacki <mikuback@linux.microsoft.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Zhichao Gao <zhichao.gao@intel.com>
Co-authored-by: Erich McMillan <emcmillan@microsoft.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Oliver Smith-Denny <osd@smith-denny.com>
This commit is contained in:
Michael Kubacki
2022-11-08 15:24:54 -05:00
committed by mergify[bot]
parent 84d77d9bf5
commit 07251f3c6a
9 changed files with 80 additions and 56 deletions
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33
MdeModulePkg/Universal/BdsDxe/BdsEntry.c
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@@ -691,6 +691,7 @@ BdsEntry (
EFI_DEVICE_PATH_PROTOCOL *FilePath;
EFI_STATUS BootManagerMenuStatus;
EFI_BOOT_MANAGER_LOAD_OPTION PlatformDefaultBootOption;
BOOLEAN PlatformDefaultBootOptionValid;
HotkeyTriggered = NULL;
Status = EFI_SUCCESS;
@@ -809,24 +810,24 @@ BdsEntry (
CpuDeadLoop ();
}
Status = EfiBootManagerInitializeLoadOption (
&PlatformDefaultBootOption,
LoadOptionNumberUnassigned,
LoadOptionTypePlatformRecovery,
LOAD_OPTION_ACTIVE,
L"Default PlatformRecovery",
FilePath,
NULL,
0
);
ASSERT_EFI_ERROR (Status);
PlatformDefaultBootOptionValid = EfiBootManagerInitializeLoadOption (
&PlatformDefaultBootOption,
LoadOptionNumberUnassigned,
LoadOptionTypePlatformRecovery,
LOAD_OPTION_ACTIVE,
L"Default PlatformRecovery",
FilePath,
NULL,
0
) == EFI_SUCCESS;
ASSERT (PlatformDefaultBootOptionValid == TRUE);
//
// System firmware must include a PlatformRecovery#### variable specifying
// a short-form File Path Media Device Path containing the platform default
// file path for removable media if the platform supports Platform Recovery.
//
if (PcdGetBool (PcdPlatformRecoverySupport)) {
if (PlatformDefaultBootOptionValid && PcdGetBool (PcdPlatformRecoverySupport)) {
LoadOptions = EfiBootManagerGetLoadOptions (&LoadOptionCount, LoadOptionTypePlatformRecovery);
if (EfiBootManagerFindLoadOption (&PlatformDefaultBootOption, LoadOptions, LoadOptionCount) == -1) {
for (Index = 0; Index < LoadOptionCount; Index++) {
@@ -1104,15 +1105,17 @@ BdsEntry (
LoadOptions = EfiBootManagerGetLoadOptions (&LoadOptionCount, LoadOptionTypePlatformRecovery);
ProcessLoadOptions (LoadOptions, LoadOptionCount);
EfiBootManagerFreeLoadOptions (LoadOptions, LoadOptionCount);
} else {
} else if (PlatformDefaultBootOptionValid) {
//
// When platform recovery is not enabled, still boot to platform default file path.
//
EfiBootManagerProcessLoadOption (&PlatformDefaultBootOption);
PlatformDefaultBootOptionValid = EfiBootManagerProcessLoadOption (&PlatformDefaultBootOption) == EFI_SUCCESS;
}
}
EfiBootManagerFreeLoadOption (&PlatformDefaultBootOption);
if (PlatformDefaultBootOptionValid) {
EfiBootManagerFreeLoadOption (&PlatformDefaultBootOption);
}
DEBUG ((DEBUG_ERROR, "[Bds] Unable to boot!\n"));
PlatformBootManagerUnableToBoot ();