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authorThierry Escande <thierry.escande@linux.intel.com>2014-01-27 00:31:14 +0100
committerSamuel Ortiz <sameo@linux.intel.com>2014-02-16 23:49:54 +0100
commitd3815ea95c67e62a2c651e7b5b4e08e95a4cbb13 (patch)
tree56d9df08bb95cd680bd792c82b2a0972c8882152 /drivers/nfc/port100.c
parentf1dd56fdc4b7474bfbda1753b42526dc144b55dd (diff)
NFC: port100: Fix possible buffer overflow
The arrays for protocols and rf techs must define a number of entries corresponding to their maximum possible index values. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/nfc/port100.c')
-rw-r--r--drivers/nfc/port100.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c
index a8555f81cbba..24f5e023f2a5 100644
--- a/drivers/nfc/port100.c
+++ b/drivers/nfc/port100.c
@@ -139,6 +139,8 @@ static const struct port100_in_rf_setting in_rf_settings[] = {
.in_recv_set_number = 15,
.in_recv_comm_type = PORT100_COMM_TYPE_IN_106A,
},
+ /* Ensures the array has NFC_DIGITAL_RF_TECH_LAST elements */
+ [NFC_DIGITAL_RF_TECH_LAST] = { 0 },
};
/**
@@ -174,6 +176,9 @@ static const struct port100_tg_rf_setting tg_rf_settings[] = {
.tg_set_number = 8,
.tg_comm_type = PORT100_COMM_TYPE_TG_424F,
},
+ /* Ensures the array has NFC_DIGITAL_RF_TECH_LAST elements */
+ [NFC_DIGITAL_RF_TECH_LAST] = { 0 },
+
};
#define PORT100_IN_PROT_INITIAL_GUARD_TIME 0x00
@@ -330,6 +335,10 @@ in_protocols[][PORT100_IN_MAX_NUM_PROTOCOLS + 1] = {
[NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED] = {
{ PORT100_IN_PROT_END, 0 },
},
+ /* Ensures the array has NFC_DIGITAL_FRAMING_LAST elements */
+ [NFC_DIGITAL_FRAMING_LAST] = {
+ { PORT100_IN_PROT_END, 0 },
+ },
};
static struct port100_protocol
@@ -371,6 +380,10 @@ tg_protocols[][PORT100_TG_MAX_NUM_PROTOCOLS + 1] = {
{ PORT100_TG_PROT_RF_OFF, 1 },
{ PORT100_TG_PROT_END, 0 },
},
+ /* Ensures the array has NFC_DIGITAL_FRAMING_LAST elements */
+ [NFC_DIGITAL_FRAMING_LAST] = {
+ { PORT100_TG_PROT_END, 0 },
+ },
};
struct port100 {