John Fastabend 8163999db4 bpf: skmsg, fix potential psock NULL pointer dereference ... Report from Dan Carpenter, net/core/skmsg.c:792 sk_psock_write_space() error: we previously assumed 'psock' could be null (see line 790) net/core/skmsg.c 789 psock = sk_psock(sk); 790 if (likely(psock && sk_psock_test_state(psock, SK_PSOCK_TX_ENABLED))) Check for NULL 791 schedule_work(&psock->work); 792 write_space = psock->saved_write_space; ^^^^^^^^^^^^^^^^^^^^^^^^ 793 rcu_read_unlock(); 794 write_space(sk); Ensure psock dereference on line 792 only occurs if psock is not null. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: 604326b41a ("bpf, sockmap: convert to generic sk_msg interface") Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2019-11-21 13:43:45 -08:00
..
Makefile	…
bpf_sk_storage.c	bpf: Switch bpf_map ref counter to atomic64_t so bpf_map_inc() never fails	2019-11-18 11:41:59 +01:00
datagram.c	net: add READ_ONCE() annotation in __skb_wait_for_more_packets()	2019-10-28 13:33:41 -07:00
datagram.h	…
dev.c	net: core: allow fast GRO for skbs with Ethernet header in head	2019-11-16 12:59:50 -08:00
dev_addr_lists.c	net: remove unnecessary variables and callback	2019-10-24 14:53:49 -07:00
dev_ioctl.c	…
devlink.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-11-16 21:51:42 -08:00
drop_monitor.c	drop_monitor: Better sanitize notified packets	2019-09-16 21:39:27 +02:00
dst.c	net: print proper warning on dst underflow	2019-09-26 09:05:56 +02:00
dst_cache.c	…
ethtool.c	net: Zeroing the structure ethtool_wolinfo in ethtool_get_wol()	2019-10-26 11:20:10 -07:00
failover.c	…
fib_notifier.c	net: fib_notifier: propagate extack down to the notifier block callback	2019-10-04 11:10:56 -07:00
fib_rules.c	net: fib_notifier: propagate extack down to the notifier block callback	2019-10-04 11:10:56 -07:00
filter.c	bpf: Annotate context types	2019-11-15 23:44:48 +01:00
flow_dissector.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-11-02 13:54:56 -07:00
flow_offload.c	…
gen_estimator.c	net_sched: gen_estimator: extend packet counter to 64bit	2019-11-06 21:51:36 -08:00
gen_stats.c	net_sched: add TCA_STATS_PKT64 attribute	2019-11-05 18:20:55 -08:00
gro_cells.c	…
hwbm.c	…
link_watch.c	…
lwt_bpf.c	bpf: lwtunnel: Fix reroute supplying invalid dst	2019-10-14 11:43:48 -07:00
lwtunnel.c	…
neighbour.c	net: add annotations on hh->hh_len lockless accesses	2019-11-07 20:07:30 -08:00
net-procfs.c	net: procfs: use index hashlist instead of name hashlist	2019-10-01 14:47:19 -07:00
net-sysfs.c	…
net-sysfs.h	…
net-traces.c	…
net_namespace.c	netns: fix GFP flags in rtnl_net_notifyid()	2019-10-25 20:14:42 -07:00
netclassid_cgroup.c	…
netevent.c	…
netpoll.c	…
netprio_cgroup.c	…
page_pool.c	net: page_pool: add the possibility to sync DMA memory for device	2019-11-20 12:34:28 -08:00
pktgen.c	pktgen: remove unnecessary assignment in pktgen_xmit()	2019-10-17 14:25:13 -04:00
ptp_classifier.c	…
request_sock.c	tcp: add rcu protection around tp->fastopen_rsk	2019-10-13 10:13:08 -07:00
rtnetlink.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-11-02 13:54:56 -07:00
scm.c	…
secure_seq.c	…
skbuff.c	net/sched: fix corrupted L2 header with MPLS 'push' and 'pop' actions	2019-10-15 17:14:48 -07:00
skmsg.c	bpf: skmsg, fix potential psock NULL pointer dereference	2019-11-21 13:43:45 -08:00
sock.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-11-02 13:54:56 -07:00
sock_diag.c	…
sock_map.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-09-15 14:17:27 +02:00
sock_reuseport.c	udp: correct reuseport selection with connected sockets	2019-09-16 09:02:18 +02:00
stream.c	…
sysctl_net_core.c	…
timestamping.c	…
tso.c	…
utils.c	…
xdp.c	xdp: remove memory poison on free for struct xdp_mem_allocator	2019-11-18 17:03:17 -08:00