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(parent: 2d2517e) | patch
nfp: fix potential use after free on xdp prog
authorJakub Kicinski <jakub.kicinski@netronome.com>
Tue, 4 Apr 2017 22:56:55 +0000 (15:56 -0700)
committerDavid S. Miller <davem@davemloft.net>
Thu, 6 Apr 2017 01:46:40 +0000 (18:46 -0700)
commitc383bdd14f91562babd269aa7c36b46fee7b6c75
treef46a23718a949591f4161dadc902368452d7858ftree | snapshot
parent2d2517ee314ef1de0517f74d06c2825fbf597ba3commit | diff
nfp: fix potential use after free on xdp prog

We should unregister the net_device first, before we give back
our reference on xdp_prog.  Otherwise xdp_prog may be freed
before .ndo_stop() disabled the datapath.  Found by code inspection.

Fixes: ecd63a0217d5 ("nfp: add XDP support in the driver")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/netronome/nfp/nfp_net_common.c diff | blob | history
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