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(parent: fc5d4e2) | 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)
commit90a713cf8641cbecb3b7d2bc52f85c19e9424a68
tree3c90130a8db3ff83082850e5349dc0e836006630tree | snapshot
parentfc5d4e247caad4d64299d22d1eccc32339ad196dcommit | 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: 0fdc387a9822 ("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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