[....] Starting enhanced syslogd: rsyslogd[ 11.346507] audit: type=1400 audit(1514273218.501:5): avc: denied { syslog } for pid=2993 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1
[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Starting mcstransd:
[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
syzkaller login: [ 18.264960] audit: type=1400 audit(1514273225.419:6): avc: denied { map } for pid=3133 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
Warning: Permanently added 'ci-upstream-mmots-kasan-gce-7,10.128.0.4' (ECDSA) to the list of known hosts.
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[ 24.665341] audit: type=1400 audit(1514273231.820:7): avc: denied { map } for pid=3147 comm="syzkaller288839" path="/root/syzkaller288839259" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
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[ 24.677969] device lo entered promiscuous mode
[ 24.683589] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 24.683980] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
[ 24.685252] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 24.696671] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
[ 24.703148] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 24.704967] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
[ 24.706730] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 24.710295] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 24.713894] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
[ 24.715755] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 25.011181] audit: type=1400 audit(1514273231.820:8): avc: denied { name_bind } for pid=3157 comm="syzkaller288839" src=20015 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1
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[ 25.077285] audit: type=1400 audit(1514273231.820:9): avc: denied { node_bind } for pid=3157 comm="syzkaller288839" src=20015 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:node_t:s0 tclass=dccp_socket permissive=1
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[ 25.145400] audit: type=1400 audit(1514273231.820:10): avc: denied { name_connect } for pid=3157 comm="syzkaller288839" dest=20015 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1
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[ 29.670840] net_ratelimit: 1259 callbacks suppressed
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[ 29.670844] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
[ 29.673721] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 29.680232] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
[ 29.682931] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 29.689505] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 29.695641] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
[ 29.699065] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
[ 29.705454] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
[ 29.712443] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
executing program
executing program
executing program
[ 30.005430]
[ 30.007161] =============================
[ 30.011330] WARNING: suspicious RCU usage
[ 30.015495] 4.15.0-rc4-mm1+ #49 Not tainted
[ 30.019813] -----------------------------
[ 30.023974] ./include/net/inet_sock.h:136 suspicious rcu_dereference_check() usage!
[ 30.031774]
[ 30.031774] other info that might help us debug this:
[ 30.031774]
[ 30.039934]
[ 30.039934] rcu_scheduler_active = 2, debug_locks = 1
[ 30.046610] 1 lock held by syzkaller288839/5694:
executing program
executing program
executing program
[ 30.051376] #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000b6980dd9>] do_ipv6_setsockopt.isra.9+0x23d/0x39c0
[ 30.061286]
[ 30.061286] stack backtrace:
[ 30.065804] CPU: 0 PID: 5694 Comm: syzkaller288839 Not tainted 4.15.0-rc4-mm1+ #49
[ 30.073494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 30.082826] Call Trace:
[ 30.085400] dump_stack+0x194/0x257
[ 30.089017] ? arch_local_irq_restore+0x53/0x53
[ 30.093687] lockdep_rcu_suspicious+0x123/0x170
[ 30.098347] inet_csk_route_req+0x824/0xca0
executing program
executing program
executing program
executing program
executing program
executing program
executing program
[ 30.102663] ? inet_csk_reset_keepalive_timer+0x60/0x60
[ 30.108008] ? mark_held_locks+0xaf/0x100
[ 30.112148] ? ktime_get_with_offset+0x188/0x420
[ 30.116905] ? kvm_clock_get_cycles+0x25/0x30
[ 30.121390] ? ktime_get_with_offset+0x2c1/0x420
[ 30.126141] dccp_v4_send_response+0xa7/0x640
[ 30.130619] ? do_gettimeofday+0x190/0x190
[ 30.134848] ? dccp_v4_reqsk_destructor+0x60/0x60
[ 30.139695] ? selinux_inet_csk_clone+0x1a0/0x1a0
[ 30.144795] ? siphash_3u32+0x1f/0x290
[ 30.148675] ? secure_dccp_sequence_number+0x9f/0x150
executing program
executing program
executing program
executing program
executing program
executing program
executing program
[ 30.153846] ? dccp_parse_options+0x3d8/0x1030
[ 30.159368] ? secure_ipv4_port_ephemeral+0x120/0x120
[ 30.164551] ? security_inet_conn_request+0x89/0xb0
[ 30.169563] dccp_v4_conn_request+0x9ee/0x11b0
[ 30.174138] ? dccp_req_err+0x3e0/0x3e0
[ 30.178118] ? ipv6_flowlabel_opt_get+0xaf0/0xaf0
[ 30.182950] ? debug_check_no_locks_freed+0x3c0/0x3c0
[ 30.188137] dccp_v6_conn_request+0xd30/0x1350
[ 30.192703] ? lru_cache_add+0x1c7/0x3a0
[ 30.196749] ? mem_cgroup_hierarchy_write+0x240/0x240
[ 30.201933] ? dccp_v6_do_rcv+0x9b0/0x9b0
executing program
executing program
executing program
executing program
executing program
executing program
[ 30.206068] ? __mem_cgroup_threshold+0x8f0/0x8f0
[ 30.210906] ? mark_held_locks+0xaf/0x100
[ 30.215046] ? print_irqtrace_events+0x270/0x270
[ 30.219796] ? find_held_lock+0x35/0x1d0
[ 30.223850] ? dccp_rcv_state_process+0x50c/0x1620
[ 30.228771] dccp_rcv_state_process+0x574/0x1620
[ 30.233515] ? dccp_sample_rtt+0xf0/0xf0
[ 30.237568] ? __release_sock+0xca/0x360
[ 30.241618] ? lock_downgrade+0x980/0x980
[ 30.245768] dccp_v4_do_rcv+0xeb/0x160
[ 30.249646] dccp_v6_do_rcv+0x81a/0x9b0
executing program
executing program
executing program
executing program
executing program
[ 30.253602] ? trace_hardirqs_on+0xd/0x10
[ 30.257736] ? __local_bh_enable_ip+0x121/0x230
[ 30.262393] __release_sock+0x124/0x360
[ 30.266365] release_sock+0xa4/0x2a0
[ 30.270066] ? __release_sock+0x360/0x360
[ 30.274197] ? lock_sock_nested+0x91/0x110
[ 30.278421] ? trace_hardirqs_on+0xd/0x10
[ 30.282552] ? __local_bh_enable_ip+0x121/0x230
[ 30.287219] do_ipv6_setsockopt.isra.9+0x50f/0x39c0
[ 30.292236] ? ipv6_update_options+0x330/0x330
[ 30.296817] ? lock_downgrade+0x980/0x980
[ 30.300949] ? check_noncircular+0x20/0x20
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
[ 30.305163] ? load_balance+0x34c0/0x34c0
[ 30.309307] ? lock_release+0xa40/0xa40
[ 30.313269] ? compat_start_thread+0x80/0x80
[ 30.317667] ? do_raw_spin_trylock+0x190/0x190
[ 30.322261] ? find_held_lock+0x35/0x1d0
[ 30.326331] ? avc_has_perm+0x35e/0x680
[ 30.330290] ? lock_downgrade+0x980/0x980
[ 30.334432] ? lock_release+0xa40/0xa40
[ 30.338393] ? lock_downgrade+0x980/0x980
[ 30.342526] ? __pmd_alloc+0x4e0/0x4e0
[ 30.346406] ? lock_release+0xa40/0xa40
[ 30.350369] ? __lock_is_held+0xb6/0x140
executing program
executing program
executing program
executing program
executing program
[ 30.354430] ? avc_has_perm+0x43e/0x680
[ 30.358401] ? avc_has_perm_noaudit+0x520/0x520
[ 30.363067] ? iterate_fd+0x3f0/0x3f0
[ 30.366856] ? lock_downgrade+0x980/0x980
[ 30.371002] ? handle_mm_fault+0x476/0x930
[ 30.375482] ? down_read_trylock+0xdb/0x170
[ 30.380269] ? __handle_mm_fault+0x3ce0/0x3ce0
[ 30.384832] ? vmacache_find+0x5f/0x280
[ 30.388803] ? sock_has_perm+0x2a4/0x420
[ 30.392854] ? selinux_secmark_relabel_packet+0xc0/0xc0
[ 30.398198] ? __do_page_fault+0x3d6/0xc90
executing program
executing program
executing program
executing program
executing program
executing program
[ 30.402421] ? selinux_netlbl_socket_setsockopt+0x10c/0x460
[ 30.408128] ? selinux_netlbl_sock_rcv_skb+0x730/0x730
[ 30.413418] ipv6_setsockopt+0xd7/0x150
[ 30.417390] ? ipv6_setsockopt+0xd7/0x150
[ 30.421530] dccp_setsockopt+0x85/0xd0
[ 30.425410] sock_common_setsockopt+0x95/0xd0
[ 30.429913] SyS_setsockopt+0x189/0x360
[ 30.433887] ? SyS_recv+0x40/0x40
[ 30.437332] ? entry_SYSCALL_64_fastpath+0x5/0x96
[ 30.442168] ? trace_hardirqs_on_caller+0x421/0x5c0
[ 30.447867] ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 30.452623] entry_SYSCALL_64_fastpath+0x1f/0x96
executing program
executing program
executing program
executing program
executing program
[ 30.457358] RIP: 0033:0x445ec9
[ 30.460526] RSP: 002b:00007ff2eb962db8 EFLAGS: 00000297 ORIG_RAX: 0000000000000036
[ 30.468218] RAX: ffffffffffffffda RBX: 00000000006dbc24 RCX: 0000000000445ec9
[ 30.475474] RDX: 0000000000000020 RSI: 0000000000000029 RDI: 0000000000000004
[ 30.482725] RBP: 00000000006dbc20 R08: 0000000000000020 R09: 0000000000000000
[ 30.489977] R10: 000000002030a000 R11: 0000000000000297 R12: 0000000000000000
[ 30.497236] R13: 00007fff3225877f R14: 00007ff2eb9639c0 R15: 0000000000000001
[ 30.504654]
executing program
executing program
executing program
executing program
executing program
executing program
[ 30.506290] =============================
[ 30.510449] WARNING: suspicious RCU usage
[ 30.514602] 4.15.0-rc4-mm1+ #49 Not tainted
[ 30.518935] -----------------------------
[ 30.523090] ./include/net/inet_sock.h:136 suspicious rcu_dereference_check() usage!
[ 30.531948]
[ 30.531948] other info that might help us debug this:
[ 30.531948]
[ 30.540096]
[ 30.540096] rcu_scheduler_active = 2, debug_locks = 1
[ 30.546783] 1 lock held by syzkaller288839/5694:
executing program
executing program
executing program
executing program
executing program
executing program
[ 30.551532] #0: (sk_lock-AF_INET6){+.+.}, at: [<00000000b6980dd9>] do_ipv6_setsockopt.isra.9+0x23d/0x39c0
[ 30.561451]
[ 30.561451] stack backtrace:
[ 30.565951] CPU: 0 PID: 5694 Comm: syzkaller288839 Not tainted 4.15.0-rc4-mm1+ #49
[ 30.573637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 30.582976] Call Trace:
[ 30.585558] dump_stack+0x194/0x257
[ 30.589176] ? arch_local_irq_restore+0x53/0x53
[ 30.593849] lockdep_rcu_suspicious+0x123/0x170
[ 30.598508] dccp_v4_send_response+0x4b0/0x640
[ 30.603074] ? do_gettimeofday+0x190/0x190
executing program
executing program
executing program
executing program
executing program
executing program
[ 30.607303] ? dccp_v4_reqsk_destructor+0x60/0x60
[ 30.612132] ? selinux_inet_csk_clone+0x1a0/0x1a0
[ 30.616970] ? siphash_3u32+0x1f/0x290
[ 30.620858] ? secure_dccp_sequence_number+0x9f/0x150
[ 30.626029] ? dccp_parse_options+0x3d8/0x1030
[ 30.630614] ? security_inet_conn_request+0x89/0xb0
[ 30.635627] dccp_v4_conn_request+0x9ee/0x11b0
[ 30.640200] ? dccp_req_err+0x3e0/0x3e0
[ 30.644181] ? ipv6_flowlabel_opt_get+0xaf0/0xaf0
[ 30.649013] ? debug_check_no_locks_freed+0x3c0/0x3c0
executing program
executing program
executing program
executing program
executing program
[ 30.654198] dccp_v6_conn_request+0xd30/0x1350
[ 30.658768] ? lru_cache_add+0x1c7/0x3a0
[ 30.662810] ? mem_cgroup_hierarchy_write+0x240/0x240
[ 30.667993] ? dccp_v6_do_rcv+0x9b0/0x9b0
[ 30.672127] ? __mem_cgroup_threshold+0x8f0/0x8f0
[ 30.676962] ? mark_held_locks+0xaf/0x100
[ 30.681103] ? print_irqtrace_events+0x270/0x270
[ 30.685845] ? find_held_lock+0x35/0x1d0
[ 30.689907] ? dccp_rcv_state_process+0x50c/0x1620
[ 30.694827] dccp_rcv_state_process+0x574/0x1620
[ 30.699573] ? dccp_sample_rtt+0xf0/0xf0
[ 30.703619] ? __release_sock+0xca/0x360
executing program
executing program
executing program
executing program
executing program
executing program
[ 30.707665] ? lock_downgrade+0x980/0x980
[ 30.711820] dccp_v4_do_rcv+0xeb/0x160
[ 30.715698] dccp_v6_do_rcv+0x81a/0x9b0
[ 30.719656] ? trace_hardirqs_on+0xd/0x10
[ 30.723793] ? __local_bh_enable_ip+0x121/0x230
[ 30.728459] __release_sock+0x124/0x360
[ 30.732432] release_sock+0xa4/0x2a0
[ 30.736133] ? __release_sock+0x360/0x360
[ 30.740274] ? lock_sock_nested+0x91/0x110
[ 30.744491] ? trace_hardirqs_on+0xd/0x10
[ 30.748629] ? __local_bh_enable_ip+0x121/0x230
[ 30.753295] do_ipv6_setsockopt.isra.9+0x50f/0x39c0
executing program
executing program
executing program
executing program
executing program
executing program
executing program
[ 30.758312] ? ipv6_update_options+0x330/0x330
[ 30.762882] ? lock_downgrade+0x980/0x980
[ 30.767026] ? check_noncircular+0x20/0x20
[ 30.771252] ? load_balance+0x34c0/0x34c0
[ 30.775389] ? lock_release+0xa40/0xa40
[ 30.779350] ? compat_start_thread+0x80/0x80
[ 30.783746] ? do_raw_spin_trylock+0x190/0x190
[ 30.788320] ? find_held_lock+0x35/0x1d0
[ 30.792378] ? avc_has_perm+0x35e/0x680
[ 30.796344] ? lock_downgrade+0x980/0x980
[ 30.800487] ? lock_release+0xa40/0xa40
[ 30.804445] ? lock_downgrade+0x980/0x980
executing program
executing program
executing program
executing program
executing program
executing program
[ 30.808572] ? __pmd_alloc+0x4e0/0x4e0
[ 30.812448] ? lock_release+0xa40/0xa40
[ 30.816411] ? __lock_is_held+0xb6/0x140
[ 30.820476] ? avc_has_perm+0x43e/0x680
[ 30.825272] ? avc_has_perm_noaudit+0x520/0x520
[ 30.830464] ? iterate_fd+0x3f0/0x3f0
[ 30.834251] ? lock_downgrade+0x980/0x980
[ 30.838400] ? handle_mm_fault+0x476/0x930
[ 30.842619] ? down_read_trylock+0xdb/0x170
[ 30.846929] ? __handle_mm_fault+0x3ce0/0x3ce0
[ 30.851498] ? vmacache_find+0x5f/0x280
executing program
executing program
executing program
executing program
executing program
executing program
[ 30.855993] ? sock_has_perm+0x2a4/0x420
[ 30.860043] ? selinux_secmark_relabel_packet+0xc0/0xc0
[ 30.865400] ? __do_page_fault+0x3d6/0xc90
[ 30.869632] ? selinux_netlbl_socket_setsockopt+0x10c/0x460
[ 30.875331] ? selinux_netlbl_sock_rcv_skb+0x730/0x730
[ 30.880604] ipv6_setsockopt+0xd7/0x150
[ 30.884568] ? ipv6_setsockopt+0xd7/0x150
[ 30.888707] dccp_setsockopt+0x85/0xd0
[ 30.892588] sock_common_setsockopt+0x95/0xd0
[ 30.897077] SyS_setsockopt+0x189/0x360
[ 30.901043] ? SyS_recv+0x40/0x40
[ 30.904496] ? entry_SYSCALL_64_fastpath+0x5/0x96
executing program
executing program
executing program
executing program
executing program
[ 30.909328] ? trace_hardirqs_on_caller+0x421/0x5c0
[ 30.914329] ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 30.919082] entry_SYSCALL_64_fastpath+0x1f/0x96
[ 30.923815] RIP: 0033:0x445ec9
[ 30.926984] RSP: 002b:00007ff2eb962db8 EFLAGS: 00000297 ORIG_RAX: 0000000000000036
[ 30.934676] RAX: ffffffffffffffda RBX: 00000000006dbc24 RCX: 0000000000445ec9
[ 30.941928] RDX: 0000000000000020 RSI: 0000000000000029 RDI: 0000000000000004
[ 30.949179] RBP: 00000000006dbc20 R08: 0000000000000020 R09: 0000000000000000
executing program
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executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
[ 30.956435] R10: 000000002030a000 R11: 0000000000000297 R12: 0000000000000000
[ 30.963686] R13: 00007fff3225877f R14: 00007ff2eb9639c0 R15: 0000000000000001
executing program
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[ 34.671877] net_ratelimit: 998 callbacks suppressed
[ 34.671881] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 34.680157] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
[ 34.680260] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 34.684644] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
[ 34.699828] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 34.699895] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
[ 34.702563] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 34.703549] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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[ 34.713957] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
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