Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable ============================= WARNING: suspicious RCU usage 4.15.0-rc7+ #260 Not tainted ----------------------------- : renamed from tunl0 ./include/net/inet_sock.h:136 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor2/20925: #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000a388d8c6>] lock_sock include/net/sock.h:1461 [inline] #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000a388d8c6>] do_ipv6_setsockopt.isra.9+0x23d/0x39a0 net/ipv6/ipv6_sockglue.c:167 stack backtrace: CPU: 1 PID: 20925 Comm: syz-executor2 Not tainted 4.15.0-rc7+ #260 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4585 ireq_opt_deref include/net/inet_sock.h:135 [inline] inet_csk_route_req+0x82a/0xca0 net/ipv4/inet_connection_sock.c:544 dccp_v4_send_response+0xa7/0x650 net/dccp/ipv4.c:485 dccp_v4_conn_request+0x9f4/0x11b0 net/dccp/ipv4.c:633 dccp_v6_conn_request+0xd30/0x1350 net/dccp/ipv6.c:317 dccp_rcv_state_process+0x574/0x1620 net/dccp/input.c:612 dccp_v4_do_rcv+0xf1/0x160 net/dccp/ipv4.c:682 dccp_v6_do_rcv+0x823/0x9c0 net/dccp/ipv6.c:578 sk_backlog_rcv include/net/sock.h:907 [inline] __release_sock+0x124/0x360 net/core/sock.c:2264 release_sock+0xa4/0x2a0 net/core/sock.c:2779 do_ipv6_setsockopt.isra.9+0x50a/0x39a0 net/ipv6/ipv6_sockglue.c:898 ipv6_setsockopt+0xd7/0x150 net/ipv6/ipv6_sockglue.c:922 dccp_setsockopt+0x85/0xd0 net/dccp/proto.c:573 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968 SYSC_setsockopt net/socket.c:1831 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1810 entry_SYSCALL_64_fastpath+0x23/0x9a RIP: 0033:0x452cf9 RSP: 002b:00007f5af0d9cc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f5af0d9d700 RCX: 0000000000452cf9 RDX: 0000000000000020 RSI: 0000000000000029 RDI: 0000000000000013 RBP: 0000000000a2f870 R08: 0000000000000020 R09: 0000000000000000 R10: 000000002067b000 R11: 0000000000000212 R12: 0000000000000000 R13: 0000000000a2f7ef R14: 00007f5af0d9d9c0 R15: 0000000000000004 ============================= SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=20945 comm=syz-executor7 WARNING: suspicious RCU usage 4.15.0-rc7+ #260 Not tainted ----------------------------- ./include/net/inet_sock.h:136 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor2/20925: #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000a388d8c6>] lock_sock include/net/sock.h:1461 [inline] #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000a388d8c6>] do_ipv6_setsockopt.isra.9+0x23d/0x39a0 net/ipv6/ipv6_sockglue.c:167 stack backtrace: CPU: 1 PID: 20925 Comm: syz-executor2 Not tainted 4.15.0-rc7+ #260 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4585 ireq_opt_deref include/net/inet_sock.h:135 [inline] dccp_v4_send_response+0x4b6/0x650 net/dccp/ipv4.c:496 dccp_v4_conn_request+0x9f4/0x11b0 net/dccp/ipv4.c:633 dccp_v6_conn_request+0xd30/0x1350 net/dccp/ipv6.c:317 dccp_rcv_state_process+0x574/0x1620 net/dccp/input.c:612 dccp_v4_do_rcv+0xf1/0x160 net/dccp/ipv4.c:682 dccp_v6_do_rcv+0x823/0x9c0 net/dccp/ipv6.c:578 sk_backlog_rcv include/net/sock.h:907 [inline] __release_sock+0x124/0x360 net/core/sock.c:2264 release_sock+0xa4/0x2a0 net/core/sock.c:2779 do_ipv6_setsockopt.isra.9+0x50a/0x39a0 net/ipv6/ipv6_sockglue.c:898 ipv6_setsockopt+0xd7/0x150 net/ipv6/ipv6_sockglue.c:922 dccp_setsockopt+0x85/0xd0 net/dccp/proto.c:573 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968 SYSC_setsockopt net/socket.c:1831 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1810 entry_SYSCALL_64_fastpath+0x23/0x9a RIP: 0033:0x452cf9 RSP: 002b:00007f5af0d9cc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f5af0d9d700 RCX: 0000000000452cf9 RDX: 0000000000000020 RSI: 0000000000000029 RDI: 0000000000000013 RBP: 0000000000a2f870 R08: 0000000000000020 R09: 0000000000000000 R10: 000000002067b000 R11: 0000000000000212 R12: 0000000000000000 R13: 0000000000a2f7ef R14: 00007f5af0d9d9c0 R15: 0000000000000004 device  entered promiscuous mode kauditd_printk_skb: 191 callbacks suppressed audit: type=1326 audit(1515881520.415:1652): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20999 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452cf9 code=0x7ffc0000 QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl audit: type=1326 audit(1515881520.415:1653): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20999 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=2 compat=0 ip=0x40d031 code=0x7ffc0000 audit: type=1326 audit(1515881520.415:1654): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20999 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452cf9 code=0x7ffc0000 QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl audit: type=1326 audit(1515881520.416:1655): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20999 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=238 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881520.416:1656): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20999 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881520.416:1657): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20999 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=302 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881520.416:1658): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20999 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881520.416:1659): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20999 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=9 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881520.422:1660): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20999 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881520.422:1661): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=20999 comm="syz-executor6" exe="/root/syz-executor6" sig=0 arch=c000003e syscall=317 compat=0 ip=0x452cf9 code=0x7ffc0000 QAT: failed to copy from user cfg_data. IPVS: Scheduler module ip_vs_ not found IPVS: Scheduler module ip_vs_ not found sit0: Invalid MTU 447609271 requested, hw max 65508 device eql entered promiscuous mode sit0: Invalid MTU 447609271 requested, hw max 65508 device syz6 entered promiscuous mode mip6: mip6_rthdr_init_state: spi is not 0: 3708026880 QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl binder: 21607 RLIMIT_NICE not set binder: 21607 RLIMIT_NICE not set binder: release 21601:21607 transaction 148 out, still active binder: release 21601:21607 transaction 147 in, still active device eql entered promiscuous mode binder: undelivered TRANSACTION_COMPLETE binder: release 21601:21618 transaction 147 out, still active binder: undelivered TRANSACTION_COMPLETE binder: 21607 RLIMIT_NICE not set binder: 21601:21618 got new transaction with bad transaction stack, transaction 150 has target 21601:0 binder: 21601:21618 transaction failed 29201/-71, size 0-0 line 2815 binder: send failed reply for transaction 148, target dead binder: send failed reply for transaction 147, target dead binder: release 21601:21618 transaction 150 out, still active binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29201 binder: send failed reply for transaction 150, target dead device eql entered promiscuous mode device eql entered promiscuous mode sctp: [Deprecated]: syz-executor0 (pid 21830) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor0 (pid 21840) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead netlink: 'syz-executor4': attribute type 1 has an invalid length. netlink: 'syz-executor4': attribute type 1 has an invalid length. sctp: [Deprecated]: syz-executor6 (pid 21963) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor6 (pid 21953) Use of int in maxseg socket option. Use struct sctp_assoc_value instead binder: 22041:22047 BC_INCREFS_DONE node 152 has no pending increfs request binder: BINDER_SET_CONTEXT_MGR already set binder: 22054:22056 ioctl 40046207 0 returned -16 binder_alloc: 22041: binder_alloc_buf, no vma binder: 22054:22056 transaction failed 29189/-3, size 0-4096 line 2903 binder: BINDER_SET_CONTEXT_MGR already set binder: 22041:22060 ioctl 40046207 0 returned -16 binder_alloc: binder_alloc_mmap_handler: 22054 20000000-20002000 already mapped failed -16 binder: undelivered TRANSACTION_ERROR: 29189 kauditd_printk_skb: 133 callbacks suppressed audit: type=1326 audit(1515881525.542:1790): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22110 comm="syz-executor7" exe="/root/syz-executor7" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881525.542:1791): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22110 comm="syz-executor7" exe="/root/syz-executor7" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881525.573:1792): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22110 comm="syz-executor7" exe="/root/syz-executor7" sig=0 arch=c000003e syscall=73 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881525.573:1793): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22110 comm="syz-executor7" exe="/root/syz-executor7" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881525.573:1794): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22110 comm="syz-executor7" exe="/root/syz-executor7" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881525.574:1795): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22110 comm="syz-executor7" exe="/root/syz-executor7" sig=0 arch=c000003e syscall=9 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881525.576:1796): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22110 comm="syz-executor7" exe="/root/syz-executor7" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881525.576:1797): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22110 comm="syz-executor7" exe="/root/syz-executor7" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881525.579:1798): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22110 comm="syz-executor7" exe="/root/syz-executor7" sig=0 arch=c000003e syscall=257 compat=0 ip=0x452cf9 code=0x7ffc0000 audit: type=1326 audit(1515881525.580:1799): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22110 comm="syz-executor7" exe="/root/syz-executor7" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452cf9 code=0x7ffc0000 netlink: 'syz-executor5': attribute type 1 has an invalid length. netlink: 'syz-executor5': attribute type 1 has an invalid length. sock: sock_set_timeout: `syz-executor2' (pid 22463) tries to set negative timeout sock: sock_set_timeout: `syz-executor2' (pid 22490) tries to set negative timeout device gre0 left promiscuous mode device gre0 entered promiscuous mode device gre0 left promiscuous mode device gre0 entered promiscuous mode IPv4: Oversized IP packet from 127.0.0.1