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https://github.com/Divested-Mobile/DivestOS-Build.git
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44 lines
1.9 KiB
Diff
44 lines
1.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Alisher Alikhodjaev <alisher@google.com>
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Date: Fri, 18 Mar 2022 17:13:05 -0700
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Subject: [PATCH] OOB read in phNciNfc_RecvMfResp()
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The size of RspBuff for Mifare shall be at least 2 bytes:
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Mifare Req/Rsp Id + Status
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Bug: 221852424
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Test: build ok
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Change-Id: I3a1e10997de8d2a7cb8bbb524fc8788aaf97944e
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(cherry picked from commit f0d86f7fe23499cd4c6631348618463fbc496436)
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Merged-In: I3a1e10997de8d2a7cb8bbb524fc8788aaf97944e
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---
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nci/jni/extns/pn54x/src/mifare/phNxpExtns_MifareStd.c | 8 +-------
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1 file changed, 1 insertion(+), 7 deletions(-)
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diff --git a/nci/jni/extns/pn54x/src/mifare/phNxpExtns_MifareStd.c b/nci/jni/extns/pn54x/src/mifare/phNxpExtns_MifareStd.c
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index 01d83f59..86657d53 100755
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--- a/nci/jni/extns/pn54x/src/mifare/phNxpExtns_MifareStd.c
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+++ b/nci/jni/extns/pn54x/src/mifare/phNxpExtns_MifareStd.c
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@@ -1231,7 +1231,7 @@ phNciNfc_RecvMfResp(phNciNfc_Buff_t* RspBuffInfo,
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}
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else
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{
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- if((0 == (RspBuffInfo->wLen))
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+ if(((PHNCINFC_EXTNID_SIZE + PHNCINFC_EXTNSTATUS_SIZE) > RspBuffInfo->wLen)
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|| (PH_NCINFC_STATUS_OK != wStatus)
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|| (NULL == (RspBuffInfo->pBuff))
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)
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@@ -1271,12 +1271,6 @@ phNciNfc_RecvMfResp(phNciNfc_Buff_t* RspBuffInfo,
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status = NFCSTATUS_SUCCESS;
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uint16_t wRecvDataSz = 0;
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- if ((PHNCINFC_EXTNID_SIZE + PHNCINFC_EXTNSTATUS_SIZE) >
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- RspBuffInfo->wLen)
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- {
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- android_errorWriteLog(0x534e4554, "181346550");
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- return NFCSTATUS_FAILED;
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- }
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/* DataLen = TotalRecvdLen - (sizeof(RspId) + sizeof(Status)) */
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wPldDataSize = ((RspBuffInfo->wLen) -
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(PHNCINFC_EXTNID_SIZE + PHNCINFC_EXTNSTATUS_SIZE));
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