26 Feb
2018
26 Feb
'18
6:47 p.m.
From: Jeff Kirsher jeffrey.t.kirsher@intel.com Date: Fri, 23 Feb 2018 12:39:41 -0800
From: Emil Tantilov emil.s.tantilov@intel.com
Add check for build_skb enabled ring in ixgbe_dma_sync_frag(). In that case &skb_shinfo(skb)->frags[0] may not always be set which can lead to a crash. Instead we derive the page offset from skb->data.
Fixes: 42073d91a214 ("ixgbe: Have the CPU take ownership of the buffers sooner") CC: stable stable@vger.kernel.org Reported-by: Ambarish Soman asoman@redhat.com Suggested-by: Alexander Duyck alexander.h.duyck@intel.com Signed-off-by: Emil Tantilov emil.s.tantilov@intel.com Tested-by: Andrew Bowers andrewx.bowers@intel.com Signed-off-by: Jeff Kirsher jeffrey.t.kirsher@intel.com
Applied, thanks Jeff.