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(parent: bd8a703) | patch
tun: fix recovery from gup errors
authorMichael S. Tsirkin <mst@redhat.com>
Sun, 23 Jun 2013 14:19:03 +0000 (17:19 +0300)
committerDavid S. Miller <davem@davemloft.net>
Tue, 25 Jun 2013 23:16:45 +0000 (16:16 -0700)
commit7e24bfbe43b545b1689a5f134ed83645b9e34b86
tree74dde1d00b2eb4c739dbe1375853e0e7383ac523tree | snapshot (tar.gz zip)
parentbd8a7036c06cf15779b31a5397d4afcb12be81eacommit | diff
tun: fix recovery from gup errors

get user pages might fail partially in tun zero copy
mode. To recover we need to put all pages that we got,
but code used a wrong index resulting in double-free
errors.

Reported-by: Brad Hubbard <bhubbard@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/tun.c diff | blob | blame | history