pcnet32: Read buffer overflow

An `options[cards_found]' that equals `sizeof(options_mapping)' is already beyond
the array.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c
index a646a44..23e1a07 100644 (file)
--- a/drivers/net/pcnet32.c
+++ b/drivers/net/pcnet32.c
@@ -1839,7 +1839,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
        lp->chip_version = chip_version;
        lp->msg_enable = pcnet32_debug;
        if ((cards_found >= MAX_UNITS)
-           || (options[cards_found] > sizeof(options_mapping)))
+           || (options[cards_found] >= sizeof(options_mapping)))
                lp->options = PCNET32_PORT_ASEL;
        else
                lp->options = options_mapping[options[cards_found]];