Eric Dumazet 7162fb242c tcp: do not underestimate skb->truesize in tcp_trim_head() ... Andrey found a way to trigger the WARN_ON_ONCE(delta < len) in skb_try_coalesce() using syzkaller and a filter attached to a TCP socket over loopback interface. I believe one issue with looped skbs is that tcp_trim_head() can end up producing skb with under estimated truesize. It hardly matters for normal conditions, since packets sent over loopback are never truncated. Bytes trimmed from skb->head should not change skb truesize, since skb->head is not reallocated. Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrey Konovalov <andreyknvl@google.com> Tested-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-04-28 16:05:22 -04:00
..
netfilter	netfilter: ipt_CLUSTERIP: Fix wrong conntrack netns refcnt usage	2017-04-13 23:21:40 +02:00
Kconfig	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next	2017-02-16 21:25:49 -05:00
Makefile	esp: Add a software GRO codepath	2017-02-15 11:04:11 +01:00
af_inet.c	ipv4: Don't pass IP fragments to upper layer GRO handlers.	2017-04-28 16:00:38 -04:00
ah4.c	…
arp.c	NET: Fix /proc/net/arp for AX.25	2017-02-13 22:15:03 -05:00
cipso_ipv4.c	…
datagram.c	…
devinet.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
esp4.c	…
esp4_offload.c	esp: Add a software GRO codepath	2017-02-15 11:04:11 +01:00
fib_frontend.c	ipv4: provide stronger user input validation in nl_fib_input()	2017-03-22 14:15:49 -07:00
fib_lookup.h	…
fib_rules.c	…
fib_semantics.c	ipv4: fib: Notify about nexthop status changes	2017-02-08 15:25:18 -05:00
fib_trie.c	lib/vsprintf.c: remove %Z support	2017-02-27 18:43:47 -08:00
fou.c	…
gre_demux.c	…
gre_offload.c	…
icmp.c	…
igmp.c	igmp, mld: Fix memory leak in igmpv3/mld_del_delrec()	2017-02-09 16:43:45 -05:00
inet_connection_sock.c	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
inet_diag.c	…
inet_fragment.c	…
inet_hashtables.c	…
inet_timewait_sock.c	…
inetpeer.c	…
ip_forward.c	…
ip_fragment.c	inet: frag: release spinlock before calling icmp_send()	2017-03-22 15:40:45 -07:00
ip_gre.c	…
ip_input.c	…
ip_options.c	…
ip_output.c	udp: avoid ufo handling on IP payload compression packets	2017-03-09 18:28:42 -08:00
ip_sockglue.c	net-timestamp: avoid use-after-free in ip_recv_error	2017-04-17 12:59:22 -04:00
ip_tunnel.c	…
ip_tunnel_core.c	…
ip_vti.c	…
ipcomp.c	…
ipconfig.c	net: ipconfig: fix ic_close_devs() use-after-free	2017-03-27 21:06:53 -07:00
ipip.c	…
ipmr.c	ipv4: fix a deadlock in ip_ra_control	2017-04-17 12:46:50 -04:00
netfilter.c	netfilter: use skb_to_full_sk in ip_route_me_harder	2017-02-28 12:49:36 +01:00
ping.c	ping: implement proper locking	2017-03-24 20:50:28 -07:00
proc.c	…
protocol.c	…
raw.c	ipv4: fix a deadlock in ip_ra_control	2017-04-17 12:46:50 -04:00
raw_diag.c	…
route.c	ipv4: Avoid caching l3mdev dst on mismatched local route	2017-04-24 12:50:29 -04:00
syncookies.c	…
sysctl_net_ipv4.c	…
tcp.c	tcp: clear saved_syn in tcp_disconnect()	2017-04-09 18:27:28 -07:00
tcp_bbr.c	…
tcp_bic.c	…
tcp_cdg.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>	2017-03-02 08:42:27 +01:00
tcp_cong.c	tcp: memset ca_priv data to 0 properly	2017-04-26 14:58:32 -04:00
tcp_cubic.c	…
tcp_dctcp.c	…
tcp_diag.c	…
tcp_fastopen.c	…
tcp_highspeed.c	…
tcp_htcp.c	…
tcp_hybla.c	…
tcp_illinois.c	…
tcp_input.c	tcp: restrict F-RTO to work-around broken middle-boxes	2017-04-07 11:44:00 -07:00
tcp_ipv4.c	dccp/tcp: fix routing redirect race	2017-03-13 21:55:47 -07:00
tcp_lp.c	…
tcp_metrics.c	…
tcp_minisocks.c	tcp: initialize icsk_ack.lrcvtime at session start time	2017-03-22 15:39:42 -07:00
tcp_nv.c	…
tcp_offload.c	…
tcp_output.c	tcp: do not underestimate skb->truesize in tcp_trim_head()	2017-04-28 16:05:22 -04:00
tcp_probe.c	tcp: Revert "tcp: tcp_probe: use spin_lock_bh()"	2017-02-21 13:26:03 -05:00
tcp_rate.c	…
tcp_recovery.c	tcp: fix lost retransmit SNMP under-counting	2017-04-05 18:41:27 -07:00
tcp_scalable.c	…
tcp_timer.c	tcp: fix various issues for sockets morphing to listen state	2017-03-07 13:58:33 -08:00
tcp_vegas.c	…
tcp_vegas.h	…
tcp_veno.c	…
tcp_westwood.c	…
tcp_yeah.c	…
tunnel4.c	…
udp.c	…
udp_diag.c	…
udp_impl.h	…
udp_offload.c	udp: disable inner UDP checksum offloads in IPsec case	2017-04-24 13:48:54 -04:00
udp_tunnel.c	…
udplite.c	…
xfrm4_input.c	esp: Add a software GRO codepath	2017-02-15 11:04:11 +01:00
xfrm4_mode_beet.c	…
xfrm4_mode_transport.c	esp: Add a software GRO codepath	2017-02-15 11:04:11 +01:00
xfrm4_mode_tunnel.c	…
xfrm4_output.c	…
xfrm4_policy.c	xfrm: policy: make policy backend const	2017-02-09 10:22:19 +01:00
xfrm4_protocol.c	xfrm: input: constify xfrm_input_afinfo	2017-02-09 10:22:17 +01:00
xfrm4_state.c	…
xfrm4_tunnel.c	…