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(parent: 8577dd8) | patch
nfc: pn533: prevent potential memory corruption
authorDan Carpenter <dan.carpenter@oracle.com>
Fri, 2 Apr 2021 11:44:42 +0000 (14:44 +0300)
committerDavid S. Miller <davem@davemloft.net>
Fri, 2 Apr 2021 21:27:50 +0000 (14:27 -0700)
commitca4d4c34ae9aa5c3c0da76662c5e549d2fc0cc86
tree3c90130a8db3ff83082850e5349dc0e836006630tree | snapshot
parent8577dd8a07cc2183e3790aa8f8da3d8c6a87803dcommit | diff
nfc: pn533: prevent potential memory corruption

If the "type_a->nfcid_len" is too large then it would lead to memory
corruption in pn533_target_found_type_a() when we do:

memcpy(nfc_tgt->nfcid1, tgt_type_a->nfcid_data, nfc_tgt->nfcid1_len);

Fixes: c3b1e1e8a76f ("NFC: Export NFCID1 from pn533")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/nfc/pn533/pn533.c diff | blob | history
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