On Sun, Aug 12, 2018 at 08:45:57PM +0200, Sergio Paracuellos wrote:
> @@ -561,15 +660,13 @@ static int mt7621_pci_probe(struct platform_device
> *pdev)
>
> mdelay(100);
>
> - list_for_each_entry_safe(port, tmp, &pcie->ports, list)
> - mt7621_pcie_enable_port(port);
> -
> - if ((*(unsigned int *)(0xbe00000c)&0xFFFF) == 0x0101) // MT7621 E2
> - bypass_pipe_rst(pcie);
> - set_phy_for_ssc(pcie);
> -
> list_for_each_entry_safe(port, tmp, &pcie->ports, list) {
> u32 slot = port->slot;
> +
> + mt7621_pcie_enable_port(port);
> + if ((*(unsigned int *)(0xbe00000c)&0xFFFF) == 0x0101) // MT7621
> E2
> + bypass_pipe_rst(port);
> + set_phy_for_ssc(port);
^^^^
This is a use after free. Bugs like this are why we discourage layering
violations.
regards,
dan carpenter
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