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Stanislav Fomichev a439184d51 bpf/test_run: fix unkillable BPF_PROG_TEST_RUN for flow dissector 
Syzbot found out that running BPF_PROG_TEST_RUN with repeat=0xffffffff
makes process unkillable. The problem is that when CONFIG_PREEMPT is
enabled, we never see need_resched() return true. This is due to the
fact that preempt_enable() (which we do in bpf_test_run_one on each
iteration) now handles resched if it's needed.

Let's disable preemption for the whole run, not per test. In this case
we can properly see whether resched is needed.
Let's also properly return -EINTR to the userspace in case of a signal
interrupt.

This is a follow up for a recently fixed issue in bpf_test_run, see
commit df1a2cb7c7 ("bpf/test_run: fix unkillable
BPF_PROG_TEST_RUN").

Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
 		2019-02-25 22:21:22 +01:00
..
6lowpan 6lowpan: convert to DEFINE_SHOW_ATTRIBUTE 2018-12-19 00:28:05 +01:00
9p 9p/net: put a lower bound on msize 2018-12-25 17:07:49 +09:00
802
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8021q net: core: dev: Add extack argument to dev_change_flags() 2018-12-06 13:26:07 -08:00
appletalk
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atm atm: clean up vcc_seq_next() 2019-02-16 18:12:22 -08:00
ax25 ax25: fix possible use-after-free 2019-01-23 11:18:00 -08:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-15 12:38:38 -08:00
bluetooth socket: Use old_timeval types for socket timestamps 2019-02-03 11:17:30 -08:00
bpf bpf/test_run: fix unkillable BPF_PROG_TEST_RUN for flow dissector 2019-02-25 22:21:22 +01:00
bpfilter bpfilter: remove extra header search paths for bpfilter_umh 2019-02-03 20:11:43 -08:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2019-02-18 11:38:30 -08:00
caif net: caif: use skb helpers instead of open-coding them 2019-02-17 11:01:17 -08:00
can can: bcm: check timer values before ktime conversion 2019-01-22 11:33:46 +01:00
ceph libceph: avoid KEEPALIVE_PENDING races in ceph_con_keepalive() 2019-01-21 14:53:12 +01:00
core bpf: add skb->queue_mapping write access from tc clsact 2019-02-19 21:56:05 +01:00
dcb net: dcb: Add priority-to-DSCP map getters 2018-07-27 13:17:50 -07:00
dccp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-08 15:00:17 -08:00
decnet Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-01-29 21:18:54 -08:00
dns_resolver dns: Allow the dns resolver to retrieve a server set 2018-10-04 09:40:52 -07:00
dsa net: dsa: Implement flow_dissect callback for tag_dsa. 2019-02-18 16:35:41 -08:00
ethernet net: ethernet: provide nvmem_get_mac_address() 2018-12-03 15:40:30 -08:00
hsr
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ieee802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-12-24 16:19:56 -08:00
ife
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ipv4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2019-02-18 11:38:30 -08:00
ipv6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2019-02-18 11:38:30 -08:00
iucv iucv: Remove SKB list assumptions. 2018-11-10 16:55:11 -08:00
kcm Revert "kcm: remove any offset before parsing messages" 2018-09-17 18:43:42 -07:00
key af_key: fix indentation on declaration statement 2018-11-15 18:09:32 +01:00
l2tp l2tp: copy 4 more bytes to linear part if necessary 2019-01-31 08:58:46 -08:00
l3mdev l3mdev: add function to retreive upper master 2018-12-03 14:15:26 -08:00
lapb
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llc llc: do not use sk_eat_skb() 2018-10-22 19:59:20 -07:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-15 12:38:38 -08:00
mac802154 mac802154: Remove VLA usage of skcipher 2018-09-28 12:46:07 +08:00
mpls mpls_iptunnel: use struct_size() helper 2019-02-08 22:57:27 -08:00
ncsi net/ncsi: Add NCSI Mellanox OEM command 2018-11-27 16:37:20 -08:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2019-02-18 11:38:30 -08:00
netlabel netlabel: check for IPV4MASK in addrinfo_get 2018-09-21 18:58:34 -07:00
netlink net: netlink: add helper to retrieve NETLINK_F_STRICT_CHK 2019-01-19 10:09:58 -08:00
netrom netrom: switch to sock timer API 2019-01-27 10:38:04 -08:00
nfc net: Revert recent Spectre-v1 patches. 2018-12-23 16:01:35 -08:00
nsh
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openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2019-01-28 17:34:38 -08:00
packet net/packet: fix 4gb buffer limit due to overflow check 2019-02-12 13:37:23 -05:00
phonet net: Revert recent Spectre-v1 patches. 2018-12-23 16:01:35 -08:00
psample
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qrtr
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rds Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-08 15:00:17 -08:00
rfkill rfkill: gpio: Remove unused include 2018-12-18 13:13:56 +01:00
rose net/rose: fix NULL ax25_cb kernel panic 2019-01-27 10:40:01 -08:00
rxrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-08 15:00:17 -08:00
sched net: sched: using kfree_rcu() to simplify the code 2019-02-18 16:34:51 -08:00
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-15 12:38:38 -08:00
smc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-15 12:38:38 -08:00
strparser bpf, sockmap: convert to generic sk_msg interface 2018-10-15 12:23:19 -07:00
sunrpc svcrdma: Remove max_sge check at connect time 2019-02-06 15:32:34 -05:00
switchdev net: Get rid of SWITCHDEV_ATTR_ID_PORT_PARENT_ID 2019-02-06 14:17:03 -08:00
tipc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-15 12:38:38 -08:00
tls net/tls: Do not use async crypto for non-data records 2019-02-12 12:35:14 -05:00
unix Revert "net: simplify sock_poll_wait" 2018-10-23 10:57:06 -07:00
vmw_vsock Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-15 12:38:38 -08:00
wimax wimax: remove blank lines at EOF 2018-07-24 14:10:42 -07:00
wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-15 12:38:38 -08:00
x25 net/x25: do not hold the cpu too long in x25_new_lci() 2019-02-11 13:20:14 -08:00
xdp Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2019-01-28 19:38:33 -08:00
xfrm xfrm: Make set-mark default behavior backward compatible 2019-01-16 13:10:55 +01:00
Kconfig bpf: make LWTUNNEL_BPF dependent on INET 2019-02-16 01:06:30 +01:00
Makefile
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compat.c socket: Use old_timeval types for socket timestamps 2019-02-03 11:17:30 -08:00
socket.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-08 15:00:17 -08:00
sysctl_net.c
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