Fix the array bounds check when transferring an extended message from the target. Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by: Ondrej Zary Tested-by: Michael Schmitz --- drivers/scsi/NCR5380.c | 3 ++- drivers/scsi/atari_NCR5380.c | 4 ++-- 2 files changed, 4 insertions(+), 3 deletions(-) Index: linux/drivers/scsi/NCR5380.c =================================================================== --- linux.orig/drivers/scsi/NCR5380.c 2016-01-03 16:03:57.000000000 +1100 +++ linux/drivers/scsi/NCR5380.c 2016-01-03 16:03:59.000000000 +1100 @@ -2039,7 +2039,8 @@ static void NCR5380_information_transfer dprintk(NDEBUG_EXTENDED, "scsi%d : length=%d, code=0x%02x\n", instance->host_no, (int) extended_msg[1], (int) extended_msg[2]); - if (!len && extended_msg[1] <= (sizeof(extended_msg) - 1)) { + if (!len && extended_msg[1] > 0 && + extended_msg[1] <= sizeof(extended_msg) - 2) { /* Accept third byte by clearing ACK */ NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE); len = extended_msg[1] - 1; Index: linux/drivers/scsi/atari_NCR5380.c =================================================================== --- linux.orig/drivers/scsi/atari_NCR5380.c 2016-01-03 16:03:57.000000000 +1100 +++ linux/drivers/scsi/atari_NCR5380.c 2016-01-03 16:03:59.000000000 +1100 @@ -2330,8 +2330,8 @@ static void NCR5380_information_transfer dprintk(NDEBUG_EXTENDED, "scsi%d: length=%d, code=0x%02x\n", HOSTNO, (int)extended_msg[1], (int)extended_msg[2]); - if (!len && extended_msg[1] <= - (sizeof(extended_msg) - 1)) { + if (!len && extended_msg[1] > 0 && + extended_msg[1] <= sizeof(extended_msg) - 2) { /* Accept third byte by clearing ACK */ NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE); len = extended_msg[1] - 1; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/