[U-Boot] phy: Fix u-boot coruption when fixed-phy is used

Tom Rini trini at konsulko.com
Thu Dec 27 15:47:54 UTC 2018


On Wed, Dec 19, 2018 at 04:57:38PM +0100, Michal Simek wrote:

> When fixed-link phy is used subnode offset is used as phy address. This
> number is bigger then space allocated for bus structure (allocated via
> mdio_alloc).
> bus->phymap[] array has PHY_MAX_ADDR size (32).
> That's why writing bus->phymap[addr] where addr is < 0 or > PHY_MAX_ADDR
> is causing write to memory which can caused full U-Boot crash.
> 
> The patch is checking if address is in correct range.
> 
> Signed-off-by: Michal Simek <michal.simek at xilinx.com>

Applied to u-boot/master, thanks!

-- 
Tom
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