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solos: Check for rogue received packets

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Sometimes there can be received packets with the size field set to 0xFFFF.
This seems to only occur after an FPGA or firmware upgrade.
This patch discards packets with an invalid size.

Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Nathan Williams 2009-03-25 20:33:42 +11:00 committed by David Woodhouse
parent 4dbedf43d2
commit 78f857f265
1 changed files with 4 additions and 0 deletions
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4
drivers/atm/solos-pci.c
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@ -671,6 +671,10 @@ void solos_bh(unsigned long card_arg)
memcpy_fromio(header, RX_BUF(card, port), sizeof(*header));
size = le16_to_cpu(header->size);
if (size > (card->buffer_size - sizeof(*header))){
dev_warn(&card->dev->dev, "Invalid buffer size\n");
continue;
}
skb = alloc_skb(size + 1, GFP_ATOMIC);
if (!skb) {