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MokManager: Discard the list contains an invalid signature

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Signed-off-by: Gary Ching-Pang Lin <glin@suse.com>
This commit is contained in:
Gary Ching-Pang Lin 2014-04-10 15:55:35 +08:00 committed by Peter Jones
parent 439f031711
commit efa9c47690
1 changed files with 5 additions and 10 deletions
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15
MokManager.c
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@ -183,10 +183,8 @@ static UINT32 count_keys(void *Data, UINTN DataSize)
}
if (!is_valid_siglist(CertList->SignatureType, CertList->SignatureSize)) {
dbsize -= CertList->SignatureListSize;
CertList = (EFI_SIGNATURE_LIST *) ((UINT8 *) CertList +
CertList->SignatureListSize);
continue;
console_errorbox(L"Invalid signature list found");
return 0;
}
MokNum++;
@ -220,12 +218,9 @@ static MokListNode *build_mok_list(UINT32 num, void *Data, UINTN DataSize) {
FreePool(list);
return NULL;
}
if (!is_valid_siglist(CertList->SignatureType, CertList->SignatureSize)) {
dbsize -= CertList->SignatureListSize;
CertList = (EFI_SIGNATURE_LIST *)((UINT8 *) CertList +
CertList->SignatureListSize);
continue;
}
/* Omit the signature check here since we already did it
in count_keys() */
Cert = (EFI_SIGNATURE_DATA *) (((UINT8 *) CertList) +
sizeof (EFI_SIGNATURE_LIST) + CertList->SignatureHeaderSize);