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Michael S. Tsirkin b124695c12 skbuff: skb_segment: orphan frags before copying 
commit 1fd819ecb9 upstream.

skb_segment copies frags around, so we need
to copy them carefully to avoid accessing
user memory after reporting completion to userspace
through a callback.

skb_segment doesn't normally happen on datapath:
TSO needs to be disabled - so disabling zero copy
in this case does not look like a big deal.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to 3.2.  As skb_segment() only supports page-frags *or* a
  frag list, there is no need for the additional frag_skb pointer or the
  preparatory renaming.]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Eddie Chapman <eddie@ehuk.net> # backported to 3.10
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-30 20:09:45 -07:00
..
datagram.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-30 03:55:20 -04:00
dev.c net: force a list_del() in unregister_netdevice_many() 2014-06-26 15:12:38 -04:00
dev_addr_lists.c net/core: dev_mc_sync_multiple calls wrong helper 2013-05-31 16:56:56 -07:00
dev_ioctl.c net: fix kernel deadlock with interface rename and netdev name retrieval. 2013-06-26 13:42:54 -07:00
drop_monitor.c net: drop_monitor: fix the value of maxattr 2014-01-15 15:28:47 -08:00
dst.c net: add skb_dst_set_noref_force 2013-04-02 00:22:53 +02:00
ethtool.c vlan: restore ethtool ABI to control VLAN hardware acceleration 2013-06-17 17:09:35 -07:00
fib_rules.c net: fix 'ip rule' iif/oif device rename 2014-03-06 21:30:03 -08:00
filter.c filter: prevent nla extensions to peek beyond the end of the message 2014-05-30 21:52:15 -07:00
flow.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-01 13:36:50 -04:00
flow_dissector.c net: flow_dissector: fail on evil iph->ihl 2013-11-20 12:27:46 -08:00
gen_estimator.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
gen_stats.c gen_stats: Stop using NLA_PUT*(). 2012-04-02 04:33:44 -04:00
iovec.c net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
link_watch.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-10-02 13:38:27 -07:00
Makefile net: move procfs code to net/core/net-procfs.c 2013-02-19 00:51:10 -05:00
neighbour.c neigh: recompute reachabletime before returning from neigh_periodic_work() 2014-03-23 21:38:10 -07:00
net-procfs.c net: Print functions in /proc/net/ptype without the offset. 2013-03-25 14:12:55 -04:00
net-sysfs.c rps_dev_flow_table_release(): no need to delay vfree() 2013-05-06 11:06:51 -04:00
net-sysfs.h
net-traces.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
net_namespace.c proc: Split the namespace stuff out into linux/proc_ns.h 2013-05-01 17:29:39 -04:00
netevent.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
netpoll.c netpoll: fix the skb check in pkt_is_ns 2014-04-14 06:42:17 -07:00
netprio_cgroup.c Revert "netprio_cgroup: make local table static" 2013-04-12 03:06:44 -04:00
pktgen.c {pktgen, xfrm} Update IPv4 header total len and checksum after tranformation 2013-12-08 07:29:26 -08:00
request_sock.c tcp: fix a panic on UP machines in reqsk_fastopen_remove 2013-01-14 18:10:05 -05:00
rtnetlink.c rtnetlink: fix userspace API breakage for iproute2 < v3.9.0 2014-06-26 15:12:38 -04:00
scm.c net: Check the correct namespace when spoofing pid over SCM_RIGHTS 2013-09-26 17:18:05 -07:00
secure_seq.c net: secure_seq: Fix warning when CONFIG_IPV6 and CONFIG_INET are not selected 2013-11-04 04:31:01 -08:00
skbuff.c skbuff: skb_segment: orphan frags before copying 2014-06-30 20:09:45 -07:00
sock.c net: Add variants of capable for use on on sockets 2014-06-26 15:12:37 -04:00
sock_diag.c net: Move the permission check in sock_diag_put_filterinfo to packet_diag_dump 2014-06-26 15:12:37 -04:00
stream.c
sysctl_net_core.c net: check net.core.somaxconn sysctl values 2013-09-14 06:54:54 -07:00
timestamping.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
user_dma.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
utils.c net: core: let's use native isxdigit instead of custom 2013-03-27 12:48:32 -04:00