lmc: Read outside array bounds
If dev_alloc_skb() fails on the first iteration of the allocation loop, then we end up writing before the start of the array. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1897,11 +1897,12 @@ static void lmc_softreset (lmc_softc_t * const sc) /*fold00*/
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/*
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* Sets end of ring
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*/
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sc->lmc_rxring[i - 1].length |= 0x02000000; /* Set end of buffers flag */
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sc->lmc_rxring[i - 1].buffer2 = virt_to_bus (&sc->lmc_rxring[0]); /* Point back to the start */
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if (i != 0) {
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sc->lmc_rxring[i - 1].length |= 0x02000000; /* Set end of buffers flag */
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sc->lmc_rxring[i - 1].buffer2 = virt_to_bus(&sc->lmc_rxring[0]); /* Point back to the start */
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}
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LMC_CSR_WRITE (sc, csr_rxlist, virt_to_bus (sc->lmc_rxring)); /* write base address */
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/* Initialize the transmit rings and buffers */
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for (i = 0; i < LMC_TXDESCS; i++)
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{
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