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2d1a42cf7f77cda54dbbee18d00b1200e7bc22aa
linux/tools/testing/selftests/net
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Eric Dumazet 878d951c67 inet: lock the socket in ip_sock_set_tos() 
Christoph Paasch reported a panic in TCP stack [1]

Indeed, we should not call sk_dst_reset() without holding
the socket lock, as __sk_dst_get() callers do not all rely
on bare RCU.

[1]
BUG: kernel NULL pointer dereference, address: 0000000000000000
PGD 12bad6067 P4D 12bad6067 PUD 12bad5067 PMD 0
Oops: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 2750 Comm: syz-executor.5 Not tainted 6.6.0-rc4-g7a5720a344e7 #49
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014
RIP: 0010:tcp_get_metrics+0x118/0x8f0 net/ipv4/tcp_metrics.c:321
Code: c7 44 24 70 02 00 8b 03 89 44 24 48 c7 44 24 4c 00 00 00 00 66 c7 44 24 58 02 00 66 ba 02 00 b1 01 89 4c 24 04 4c 89 7c 24 10 <49> 8b 0f 48 8b 89 50 05 00 00 48 89 4c 24 30 33 81 00 02 00 00 69
RSP: 0018:ffffc90000af79b8 EFLAGS: 00010293
RAX: 000000000100007f RBX: ffff88812ae8f500 RCX: ffff88812b5f8f01
RDX: 0000000000000002 RSI: ffffffff8300f080 RDI: 0000000000000002
RBP: 0000000000000002 R08: 0000000000000003 R09: ffffffff8205eca0
R10: 0000000000000002 R11: ffff88812b5f8f00 R12: ffff88812a9e0580
R13: 0000000000000000 R14: ffff88812ae8fbd2 R15: 0000000000000000
FS: 00007f70a006b640(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000012bad7003 CR4: 0000000000170ee0
Call Trace:
<TASK>
tcp_fastopen_cache_get+0x32/0x140 net/ipv4/tcp_metrics.c:567
tcp_fastopen_cookie_check+0x28/0x180 net/ipv4/tcp_fastopen.c:419
tcp_connect+0x9c8/0x12a0 net/ipv4/tcp_output.c:3839
tcp_v4_connect+0x645/0x6e0 net/ipv4/tcp_ipv4.c:323
__inet_stream_connect+0x120/0x590 net/ipv4/af_inet.c:676
tcp_sendmsg_fastopen+0x2d6/0x3a0 net/ipv4/tcp.c:1021
tcp_sendmsg_locked+0x1957/0x1b00 net/ipv4/tcp.c:1073
tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1336
__sock_sendmsg+0x83/0xd0 net/socket.c:730
__sys_sendto+0x20a/0x2a0 net/socket.c:2194
__do_sys_sendto net/socket.c:2206 [inline]

Fixes: e08d0b3d17 ("inet: implement lockless IP_TOS")
Reported-by: Christoph Paasch <cpaasch@apple.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20231018090014.345158-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-10-19 13:13:13 +02:00
..
af_unix
selftests: net: remove unused variables
2023-10-16 09:20:08 +01:00
forwarding
selftests: forwarding: bridge_fdb_learning_limit: Add a new selftest
2023-10-17 17:39:02 -07:00
hsr
selftests: hsr: Extend the testsuite to also cover HSRv1.
2023-09-18 08:26:19 +01:00
mptcp
inet: lock the socket in ip_sock_set_tos()
2023-10-19 13:13:13 +02:00
openvswitch
selftests: openvswitch: add explicit drop testcase
2023-08-14 08:01:06 +01:00
.gitignore
selftests/net: Add log.txt and tools to .gitignore
2023-08-20 15:15:41 +01:00
altnames.sh
selftest: net: fix typo in altname test
2021-09-12 10:48:26 +01:00
amt.sh
selftests: set amt.sh executable
2022-01-05 10:27:19 -08:00
arp_ndisc_evict_nocarrier.sh
selftests: net: return non-zero for failures reported in arp_ndisc_evict_nocarrier
2023-01-01 11:59:53 +00:00
arp_ndisc_untracked_subnets.sh
selftests: net: arp_ndisc_untracked_subnets: test for arp_accept and accept_untracked_na
2022-07-15 18:55:50 -07:00
bareudp.sh
selftests: set conf.all.rp_filter=0 in bareudp.sh
2020-11-12 16:14:38 -08:00
big_tcp.sh
selftests: add a selftest for big tcp
2023-03-08 14:25:42 +01:00
bind_bhash.c
selftests/net: Add test for timing a bind request to a port with a populated bhash entry
2022-08-24 19:30:09 -07:00
bind_bhash.sh
selftests/net: Improve bind_bhash.sh to accommodate predictable network interface names
2023-09-10 18:49:29 +01:00
bind_timewait.c
tcp: Add selftest for bind() and TIME_WAIT.
2022-12-30 07:25:53 +00:00
bind_wildcard.c
selftest: tcp: Add v4-mapped-v6 cases in bind_wildcard.c.
2023-09-13 07:18:04 +01:00
cmsg_ipv6.sh
selftest: net: Improve IPV6_TCLASS/IPV6_HOPLIMIT tests apparmor compatibility
2023-01-28 13:55:12 +00:00
cmsg_sender.c
selftests: net: fix cmsg_so_mark.sh test hang
2022-12-30 07:37:26 +00:00
cmsg_so_mark.sh
selftests: net: cmsg_so_mark: test with SO_MARK set by setsockopt
2022-02-10 15:04:51 +00:00
cmsg_time.sh
selftests: net: test standard socket cmsgs across UDP and ICMP sockets
2022-02-10 15:04:52 +00:00
config
selftests: tls: add test variants for aria-gcm
2023-08-27 17:17:40 -07:00
csum.c
selftests/net: replace manual array size calc with ARRAYSIZE macro.
2023-07-18 17:43:51 -07:00
devlink_port_split.py
selftests: net: devlink_port_split.py: skip test if no suitable device available
2023-03-16 17:38:05 -07:00
drop_monitor_tests.sh
selftests: net: Add drop monitor test
2020-09-30 18:01:26 -07:00
fcnal-test.sh
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-06-22 18:40:38 -07:00
fdb_flush.sh
selftests: fdb_flush: Add test cases for FDB flush with bridge device
2023-10-13 10:00:32 +01:00
fib_nexthop_multiprefix.sh
selftests: fib_nexthop_multiprefix: fix cleanup() netns deletion
2020-07-14 15:06:12 -07:00
fib_nexthop_nongw.sh
selftests/net: test nexthop without gw
2022-07-14 14:41:19 +02:00
fib_nexthops.sh
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-08-10 14:10:53 -07:00
fib_rule_tests.sh
selftests: fib_rule_tests: Test UDP and TCP connections with DSCP rules.
2023-02-09 22:49:04 -08:00
fib_tests.sh
selftests: fib_tests: Add multipath list receive tests
2023-09-01 08:11:51 +01:00
fib-onlink-tests.sh
selftests: fib-onlink: Make quiet by default
2019-05-22 17:50:24 -07:00
fin_ack_lat.c
selftests: net: Add FIN_ACK processing order related latency spike test
2020-02-02 13:33:21 -08:00
fin_ack_lat.sh
selftests: net: Add FIN_ACK processing order related latency spike test
2020-02-02 13:33:21 -08:00
gre_gso.sh
selftests: net: switch to socat in the GSO GRE test
2021-11-12 19:59:01 -08:00
gro.c
Merge tag '5.17-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2022-01-10 19:06:09 -08:00
gro.sh
selftests/net: allow GRO coalesce test on veth
2021-08-26 12:03:49 +01:00
hwtstamp_config.c
selftests/net: replace manual array size calc with ARRAYSIZE macro.
2023-07-18 17:43:51 -07:00
icmp_redirect.sh
selftests: icmp_redirect: pass xfail=0 to log_test()
2021-12-12 12:56:41 +00:00
icmp.sh
selftests/net: Add icmp.sh for testing ICMP dummy address responses
2021-06-18 12:13:24 -07:00
in_netns.sh
selftests/net: fix in_netns.sh script
2018-03-07 12:26:05 -05:00
io_uring_zerocopy_tx.c
selftest/net: adjust io_uring sendzc notif handling
2022-09-23 14:57:27 -06:00
io_uring_zerocopy_tx.sh
selftests/net: don't tests batched TCP io_uring zc
2022-11-02 08:27:24 -06:00
ioam6_parser.c
selftests: net: ioam: expect support for Queue depth data
2022-01-21 19:26:39 -08:00
ioam6.sh
selftests: net: fix IOAM test skip return code
2022-08-02 09:51:31 +02:00
ip6_gre_headroom.sh
selftests: net: Test headroom handling of ip6_gre devices
2018-06-26 23:03:01 +09:00
ip_defrag.c
selftests: net: ip_defrag: ignore EPERM
2020-06-02 15:54:20 -07:00
ip_defrag.sh
selftests: net: ip_defrag: modprobe missing nf_defrag_ipv6 support
2020-07-17 12:49:18 -07:00
ip_local_port_range.c
selftests/net: Cover the IP_LOCAL_PORT_RANGE socket option
2023-01-25 22:45:00 -08:00
ip_local_port_range.sh
selftests/net: Cover the IP_LOCAL_PORT_RANGE socket option
2023-01-25 22:45:00 -08:00
ipsec.c
selftests/net: Refactor xfrm_fill_key() to use array of structs
2022-08-16 11:28:13 +02:00
ipv6_flowlabel_mgr.c
selftests/net: ipv6 flowlabel
2019-05-28 17:18:53 -07:00
ipv6_flowlabel.c
ping: support ipv6 ping socket flow labels
2022-07-22 12:40:27 +01:00
ipv6_flowlabel.sh
ping: support ipv6 ping socket flow labels
2022-07-22 12:40:27 +01:00
l2_tos_ttl_inherit.sh
selftests/net: l2_tos_ttl_inherit.sh: Ensure environment cleanup on failure.
2023-01-10 10:13:52 +01:00
l2tp.sh
selftests: Make l2tp.sh executable
2019-10-22 14:01:35 -07:00
Makefile
selftests: Add test cases for FDB flush with VXLAN device
2023-10-13 10:00:32 +01:00
msg_zerocopy.c
selftests/net: relax cpu affinity requirement in msg_zerocopy test
2020-08-05 12:25:35 -07:00
msg_zerocopy.sh
selftests: extend zerocopy tests to udp
2018-12-03 15:58:32 -08:00
nat6to4.c
selftests/net: mv bpf/nat6to4.c to net folder
2023-01-19 13:25:53 +01:00
ndisc_unsolicited_na_test.sh
net/ipv6: Expand and rename accept_unsolicited_na to accept_untracked_na
2022-05-31 11:36:57 +02:00
netdevice.sh
selftests: net: return Kselftest Skip code for skipped tests
2018-05-30 15:29:06 -06:00
nettest.c
selftests: net: remove unused variables
2023-10-16 09:20:08 +01:00
pmtu.sh
selftests: net: test vxlan pmtu exceptions with tcp
2023-08-04 18:24:52 -07:00
psock_fanout.c
selftests: net: fix array_size.cocci warning
2022-03-17 15:21:16 +01:00
psock_lib.h
selftests/net: replace manual array size calc with ARRAYSIZE macro.
2023-07-18 17:43:51 -07:00
psock_snd.c
selftests/net: enable lo.accept_local in psock_snd test
2022-05-25 21:58:35 -07:00
psock_snd.sh
selftests/net: remove min gso test in packet_snd
2021-08-02 10:34:04 +01:00
psock_tpacket.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 222
2019-05-30 11:29:55 -07:00
reuseaddr_conflict.c
selftest: add a reuseaddr test
2017-09-19 14:09:26 -06:00
reuseaddr_ports_exhausted.c
selftests/net: fix warnings on reuseaddr_ports_exhausted
2021-03-16 15:01:21 -07:00
reuseaddr_ports_exhausted.sh
selftests: net: Add SO_REUSEADDR test to check if 4-tuples are fully utilized.
2020-03-12 12:08:09 -07:00
reuseport_addr_any.c
selftests/net: add definition for SOL_DCCP to fix compilation errors for old libc
2020-03-21 20:23:10 -07:00
reuseport_addr_any.sh
selftests: net: test that listening sockets match on address properly
2018-12-14 15:55:20 -08:00
reuseport_bpf_cpu.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
reuseport_bpf_numa.c
selftests: net: fix array_size.cocci warning
2022-03-07 12:23:27 +00:00
reuseport_bpf.c
selftests: Fix the if conditions of in test_extra_filter()
2022-09-27 11:00:02 +02:00
reuseport_dualstack.c
selftests: net: reuseport_dualstack: fix uninitalized parameter
2019-11-01 15:11:02 -07:00
route_localnet.sh
selftests: add route_localnet test script
2019-06-24 09:02:47 -07:00
rps_default_mask.sh
selftests: net: rps_default_mask.sh: delete veth link specifically
2023-04-05 18:59:32 -07:00
rtnetlink.sh
kselftest: rtnetlink: add pause and pause on fail flag
2023-09-18 09:34:06 +01:00
run_afpackettests
selftests/net: Use kselftest skip code for skipped tests
2021-08-24 16:49:09 -07:00
run_netsocktests
selftests/net: correct the return value for run_netsocktests
2019-04-19 14:39:51 -07:00
rxtimestamp.c
selftests/net: remove ARRAY_SIZE define from individual tests
2021-12-10 17:50:57 -07:00
rxtimestamp.sh
selftests/net: plug rxtimestamp test into kselftest framework
2020-06-23 20:36:46 -07:00
sctp_hello.c
selftests: add a selftest for sctp vrf
2022-11-18 11:42:54 +00:00
sctp_vrf.sh
selftests: add a selftest for sctp vrf
2022-11-18 11:42:54 +00:00
settings
kselftests/net: adapt the timeout to the largest runtime
2022-01-13 12:53:22 +00:00
setup_loopback.sh
selftests/net: allow GRO coalesce test on veth
2021-08-26 12:03:49 +01:00
setup_veth.sh
selftests/net: allow GRO coalesce test on veth
2021-08-26 12:03:49 +01:00
sk_bind_sendto_listen.c
selftests/net: Add sk_bind_sendto_listen and sk_connect_zero_addr
2022-08-24 19:30:09 -07:00
sk_connect_zero_addr.c
selftests/net: Add sk_bind_sendto_listen and sk_connect_zero_addr
2022-08-24 19:30:09 -07:00
so_incoming_cpu.c
selftest: net: Assert on a proper value in so_incoming_cpu.c.
2023-08-01 15:02:58 -07:00
so_netns_cookie.c
tools/testing: add a selftest for SO_NETNS_COOKIE
2021-06-24 11:13:05 -07:00
so_txtime.c
selftests/net: so_txtime: usage(): fix documentation of default clock
2022-05-03 13:18:26 +02:00
so_txtime.sh
selftests/net: so_txtime multi-host support
2021-03-31 17:48:21 -07:00
socket.c
selftests/net: remove ARRAY_SIZE define from individual tests
2021-12-10 17:50:57 -07:00
srv6_end_dt4_l3vpn_test.sh
selftets: seg6: disable rp_filter by default in srv6_end_dt4_l3vpn_test
2023-05-11 18:01:38 -07:00
srv6_end_dt6_l3vpn_test.sh
selftests/net: Use kselftest skip code for skipped tests
2021-08-24 16:49:09 -07:00
srv6_end_dt46_l3vpn_test.sh
selftests: srv6: make srv6_end_dt46_l3vpn_test more robust
2023-04-28 09:51:40 +01:00
srv6_end_flavors_test.sh
selftests: seg6: add selftest for PSP flavor in SRv6 End behavior
2023-02-16 13:18:06 +01:00
srv6_end_next_csid_l3vpn_test.sh
selftests: seg6: add selftest for NEXT-C-SID flavor in SRv6 End behavior
2022-09-20 12:33:22 +02:00
srv6_end_x_next_csid_l3vpn_test.sh
selftests: seg6: add selftest for NEXT-C-SID flavor in SRv6 End.X behavior
2023-08-15 18:51:47 -07:00
srv6_hencap_red_l3vpn_test.sh
selftests: seg6: add selftest for SRv6 H.Encaps.Red behavior
2022-07-29 12:14:03 +01:00
srv6_hl2encap_red_l2vpn_test.sh
selftests: seg6: add selftest for SRv6 H.L2Encaps.Red behavior
2022-07-29 12:14:03 +01:00
stress_reuseport_listen.c
net: selftests: Stress reuseport listen
2022-05-12 16:52:18 -07:00
stress_reuseport_listen.sh
net: selftests: Stress reuseport listen
2022-05-12 16:52:18 -07:00
tap.c
selftests: add few test cases for tap driver
2022-08-05 08:59:15 +01:00
tcp_fastopen_backup_key.c
selftests/net: remove ARRAY_SIZE define from individual tests
2021-12-10 17:50:57 -07:00
tcp_fastopen_backup_key.sh
selftests: net: tcp_fastopen_backup_key.sh: fix shellcheck issue
2019-08-15 11:34:32 -07:00
tcp_inq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 253
2019-06-05 17:30:27 +02:00
tcp_mmap.c
selftests/net: report rcv_mss in tcp_mmap
2023-08-02 11:40:49 +01:00
test_blackhole_dev.sh
blackhole_dev: add a selftest
2019-07-01 19:34:46 -07:00
test_bpf.sh
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
test_bridge_backup_port.sh
selftests: net: Add bridge backup port and backup nexthop ID test
2023-07-19 10:53:49 +01:00
test_bridge_neigh_suppress.sh
selftests: net: Add bridge neighbor suppression test
2023-04-21 08:25:50 +01:00
test_ingress_egress_chaining.sh
selftests: add selftest for chaining of tc ingress handling to egress
2022-10-19 14:04:36 +01:00
test_vxlan_fdb_changelink.sh
selftests: net: Add test_vxlan_fdb_changelink.sh
2018-12-18 21:18:26 -08:00
test_vxlan_mdb.sh
selftests: net: Add VXLAN MDB test
2023-03-17 08:05:50 +00:00
test_vxlan_nolocalbypass.sh
selftests: net: vxlan: Fix selftest regression after changes in iproute2.
2023-06-11 21:05:53 +01:00
test_vxlan_under_vrf.sh
selftests: test_vxlan_under_vrf: Fix broken test case
2022-03-25 17:00:11 -07:00
test_vxlan_vnifiltering.sh
selftests: Fix failing VXLAN VNI filtering test
2023-02-08 16:54:03 -08:00
timestamping.c
selftests/net: timestamping: Fix bind_phc check
2022-01-31 11:44:04 +00:00
tls.c
selftests: tls: swap the TX and RX sockets in some tests
2023-09-15 07:41:39 +01:00
toeplitz_client.sh
selftests/net: toeplitz test
2021-08-05 13:14:09 +01:00
toeplitz.c
selftests/net: toeplitz: fix race on tpacket_v3 block close
2023-01-19 09:27:15 -08:00
toeplitz.sh
selftests: net: Use "grep -E" instead of "egrep"
2022-12-02 20:56:41 -08:00
traceroute.sh
selftest: net: add some traceroute tests
2019-11-06 17:35:49 -08:00
tun.c
selftest: tun: add test for NAPI dismantle
2022-06-30 11:34:10 -07:00
txring_overwrite.c
selftests: txring_overwrite: fix incorrect test of mmap() return value
2019-07-08 15:39:38 -07:00
txtimestamp.c
selftests: net: change fprintf format specifiers
2022-03-21 16:37:54 -07:00
txtimestamp.sh
selftest: txtimestamp: fix net ns entry logic
2020-07-21 16:11:07 -07:00
udpgro_bench.sh
selftests/net: fix missing xdp_dummy
2022-11-18 12:01:14 +00:00
udpgro_frglist.sh
selftests/net: mv bpf/nat6to4.c to net folder
2023-01-19 13:25:53 +01:00
udpgro_fwd.sh
selftests/net: fix missing xdp_dummy
2022-11-18 12:01:14 +00:00
udpgro.sh
selftests/net: fix missing xdp_dummy
2022-11-18 12:01:14 +00:00
udpgso_bench_rx.c
selftests/net: Interpret UDP_GRO cmsg data as an int value
2023-02-20 08:27:07 +00:00
udpgso_bench_tx.c
selftests: net: udpgso_bench_tx: Cater for pending datagrams zerocopy benchmarking
2023-02-02 13:29:51 +01:00
udpgso_bench.sh
selftests: net: udpgso_bench: Fix racing bug between the rx/tx programs
2023-02-02 13:29:51 +01:00
udpgso.c
selftests: Calculate udpgso segment count without header adjustment
2021-12-23 19:20:06 -08:00
udpgso.sh
selftests: udp gso with corking
2018-04-26 15:09:52 -04:00
unicast_extensions.sh
selftests/net: Use kselftest skip code for skipped tests
2021-08-24 16:49:09 -07:00
veth.sh
selftests/net: fix missing xdp_dummy
2022-11-18 12:01:14 +00:00
vrf_route_leaking.sh
selftests: vrf_route_leaking: remove ipv6_ping_frag from default testing
2023-08-20 15:25:10 +01:00
vrf_strict_mode_test.sh
selftests: net: vrf_strict_mode_test: add support to select a test to run
2022-05-02 10:48:29 +02:00
vrf-xfrm-tests.sh
selftests: net: vrf-xfrm-tests: change authentication and encryption algos
2023-06-15 22:24:01 -07:00
xfrm_policy.sh
xfrm: Fix wraparound in xfrm_policy_addr_delta()
2021-01-04 10:35:09 +01:00