On Thu, Mar 06, 2014 at 07:24:31PM -0800, Jeff Kirsher wrote:
> On Thu, 2014-03-06 at 23:04 -0300, Marcelo Tosatti wrote:
> > 
> > There is a race on the shutdown path of the e1000 driver
> > that allows the card to DMA into free'd memory.
> > 
> > The symptoms are similar to those described at 
> > commit d5bc77a223b0e9b9dfb002048d2b34a79e7d0b48,
> > "e1000: don't enable dma receives until after dma address has been
> > setup", where memory corruption is visible due to E1000_RXD_STAT_DD
> > being written to the DMA transfer descriptor.
> > 
> > Fix by not allowing the watchdog and tx fifo stall detector
> > to re-enable E1000_TCTL_EN.
> > 
> > Signed-off-by: Marcelo Tosatti <[email protected]>
> 
> Thanks I will add this to the queue.
> 
> Note- there are trailing whitespace issues and 2 comments are not
> formatted correctly.  I can fix these up if there are no other issues
> with the patch, if you want.

checkpatch.pl did not complain about those - feel free to fix them,
thanks.



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