WSL2-Linux-Kernel/net/ipv4
Christoph Paasch f2feaefdab tcp: Don't access TCP_SKB_CB before initializing it
Since commit eeea10b83a ("tcp: add
tcp_v4_fill_cb()/tcp_v4_restore_cb()"), tcp_vX_fill_cb is only called
after tcp_filter(). That means, TCP_SKB_CB(skb)->end_seq still points to
the IP-part of the cb.

We thus should not mock with it, as this can trigger bugs (thanks
syzkaller):
[   12.349396] ==================================================================
[   12.350188] BUG: KASAN: slab-out-of-bounds in ip6_datagram_recv_specific_ctl+0x19b3/0x1a20
[   12.351035] Read of size 1 at addr ffff88006adbc208 by task test_ip6_datagr/1799

Setting end_seq is actually no more necessary in tcp_filter as it gets
initialized later on in tcp_vX_fill_cb.

Cc: Eric Dumazet <edumazet@google.com>
Fixes: eeea10b83a ("tcp: add tcp_v4_fill_cb()/tcp_v4_restore_cb()")
Signed-off-by: Christoph Paasch <cpaasch@apple.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-11 15:36:49 -07:00
..
bpfilter net: bpfilter: disallow to remove bpfilter module while being used 2019-01-11 18:05:41 -08:00
netfilter netfilter: nf_tables: merge ipv4 and ipv6 nat chain types 2019-03-01 14:36:59 +01:00
Kconfig
Makefile
af_inet.c gso: validate gso_type on ipip style tunnels 2019-02-20 11:24:27 -08:00
ah4.c
arp.c
cipso_ipv4.c netlabel: fix out-of-bounds memory accesses 2019-02-27 21:45:24 -08:00
datagram.c
devinet.c net: ignore sysctl_devconf_inherit_init_net without SYSCTL 2019-03-04 13:14:34 -08:00
esp4.c esp: Skip TX bytes accounting when sending from a request socket 2019-01-28 11:20:58 +01:00
esp4_offload.c
fib_frontend.c ipv4: Return error for RTA_VIA attribute 2019-02-26 13:23:17 -08:00
fib_lookup.h
fib_notifier.c
fib_rules.c ipv4: fib_rules: Fix possible infinite loop in fib_empty_table 2018-12-30 12:57:04 -08:00
fib_semantics.c ipv4: fib: use struct_size() in kzalloc() 2019-02-01 15:12:29 -08:00
fib_trie.c net: ipv4: Fix memory leak in network namespace dismantle 2019-01-15 13:33:44 -08:00
fou.c fou, fou6: avoid uninit-value in gue_err() and gue6_err() 2019-03-08 15:19:53 -08:00
gre_demux.c net: ip_gre: use erspan key field for tunnel lookup 2019-01-22 11:52:17 -08:00
gre_offload.c
icmp.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-02 12:54:35 -08:00
igmp.c net: remove unneeded switch fall-through 2019-02-21 13:48:00 -08:00
inet_connection_sock.c
inet_diag.c inet_diag: fix reporting cgroup classid and fallback to priority 2019-02-12 13:35:57 -05:00
inet_fragment.c net: remove unused struct inet_frag_queue.fragments field 2019-02-26 08:27:05 -08:00
inet_hashtables.c net: dccp: fix kernel crash on module load 2018-12-24 15:27:56 -08:00
inet_timewait_sock.c
inetpeer.c net: ipv4: use a dedicated counter for icmp_v4 redirect packets 2019-02-08 21:50:15 -08:00
ip_forward.c
ip_fragment.c net: remove unused struct inet_frag_queue.fragments field 2019-02-26 08:27:05 -08:00
ip_gre.c route: Add multipath_hash in flowi_common to make user-define hash 2019-02-27 12:50:17 -08:00
ip_input.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-02 12:54:35 -08:00
ip_options.c net: avoid use IPCB in cipso_v4_error 2019-02-25 14:32:35 -08:00
ip_output.c
ip_sockglue.c ip: on queued skb use skb_header_pointer instead of pskb_may_pull 2019-01-10 09:27:20 -05:00
ip_tunnel.c iptunnel: NULL pointer deref for ip_md_tunnel_xmit 2019-03-06 10:43:06 -08:00
ip_tunnel_core.c ip_tunnel: Add dst_cache support in lwtunnel_state of ip tunnel 2019-02-24 22:13:49 -08:00
ip_vti.c vti4: Fix a ipip packet processing bug in 'IPCOMP' virtual tunnel 2019-01-09 14:00:37 +01:00
ipcomp.c
ipconfig.c ipconfig: add carrier_timeout kernel parameter 2019-02-01 15:24:13 -08:00
ipip.c ip_tunnel: Add tnl_update_pmtu in ip_md_tunnel_xmit 2019-01-26 09:43:03 -08:00
ipmr.c ipmr: ip6mr: Create new sockopt to clear mfc cache or vifs 2019-02-21 13:05:05 -08:00
ipmr_base.c
metrics.c
netfilter.c netfilter: ipv4: remove useless export_symbol 2019-01-28 11:32:58 +01:00
netlink.c ipv4: Add ICMPv6 support when parse route ipproto 2019-03-01 16:41:27 -08:00
ping.c
proc.c
protocol.c
raw.c
raw_diag.c
route.c route: set the deleted fnhe fnhe_daddr to 0 in ip_del_fnhe to fix a race 2019-03-08 10:50:34 -08:00
syncookies.c tcp: handle inet_csk_reqsk_queue_add() failures 2019-03-08 16:05:10 -08:00
sysctl_net_ipv4.c
tcp.c tcp: do not report TCP_CM_INQ of 0 for closed connections 2019-03-06 11:00:50 -08:00
tcp_bbr.c tcp_bbr: adapt cwnd based on ack aggregation estimation 2019-01-24 22:27:27 -08:00
tcp_bic.c
tcp_bpf.c
tcp_cdg.c
tcp_cong.c
tcp_cubic.c
tcp_dctcp.c
tcp_dctcp.h
tcp_diag.c
tcp_fastopen.c
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c tcp: handle inet_csk_reqsk_queue_add() failures 2019-03-08 16:05:10 -08:00
tcp_ipv4.c tcp: Don't access TCP_SKB_CB before initializing it 2019-03-11 15:36:49 -07:00
tcp_lp.c
tcp_metrics.c mm: convert totalram_pages and totalhigh_pages variables to atomic 2018-12-28 12:11:47 -08:00
tcp_minisocks.c tcp: use tcp_md5_needed for timewait sockets 2019-02-26 13:16:03 -08:00
tcp_nv.c
tcp_offload.c
tcp_output.c tcp: remove tcp_queue argument from tso_fragment() 2019-02-26 13:16:03 -08:00
tcp_rate.c
tcp_recovery.c
tcp_scalable.c
tcp_timer.c tcp: Refactor pingpong code 2019-01-27 13:29:43 -08:00
tcp_ulp.c
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tunnel4.c
udp.c udp: fix possible user after free in error handler 2019-02-22 16:05:11 -08:00
udp_diag.c
udp_impl.h udp: add missing rehash callback to udplite 2019-01-17 15:01:08 -08:00
udp_offload.c
udp_tunnel.c net/ipv4/udp_tunnel: prefer SO_BINDTOIFINDEX over SO_BINDTODEVICE 2019-01-17 14:55:52 -08:00
udplite.c udp: add missing rehash callback to udplite 2019-01-17 15:01:08 -08:00
xfrm4_input.c
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c
xfrm4_output.c
xfrm4_policy.c
xfrm4_protocol.c
xfrm4_state.c
xfrm4_tunnel.c