[ 40.942833] random: cc1: uninitialized urandom read (8 bytes read) [ 41.490864] IPVS: ftp: loaded support on port[0] = 21 [ 42.588045] can: request_module (can-proto-0) failed. [ 42.597388] can: request_module (can-proto-0) failed. [ 42.772304] audit: type=1400 audit(1583127561.151:37): avc: denied { create } for pid=6905 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1 [ 42.796389] audit: type=1400 audit(1583127561.151:38): avc: denied { create } for pid=6905 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 42.820524] audit: type=1400 audit(1583127561.151:39): avc: denied { create } for pid=6905 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 42.993456] random: sshd: uninitialized urandom read (32 bytes read) [ 43.783203] random: sshd: uninitialized urandom read (32 bytes read) [ 43.974665] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.206' (ECDSA) to the list of known hosts. 2020/03/02 05:39:28 parsed 1 programs 2020/03/02 05:39:28 executed programs: 0 [ 49.881849] audit: type=1400 audit(1583127568.261:40): avc: denied { map } for pid=6978 comm="syz-execprog" path="/root/syzkaller-shm039791868" dev="sda1" ino=16504 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 50.100943] IPVS: ftp: loaded support on port[0] = 21 [ 50.946202] IPVS: ftp: loaded support on port[0] = 21 [ 50.990437] chnl_net:caif_netlink_parms(): no params data found [ 51.017224] IPVS: ftp: loaded support on port[0] = 21 [ 51.039262] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.046440] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.053734] device bridge_slave_0 entered promiscuous mode [ 51.062508] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.068989] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.075999] device bridge_slave_1 entered promiscuous mode [ 51.097791] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 51.108339] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 51.132073] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 51.139440] team0: Port device team_slave_0 added [ 51.151757] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 51.158984] team0: Port device team_slave_1 added [ 51.184058] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 51.194484] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 51.224829] chnl_net:caif_netlink_parms(): no params data found [ 51.242459] IPVS: ftp: loaded support on port[0] = 21 [ 51.282003] device hsr_slave_0 entered promiscuous mode [ 51.320371] device hsr_slave_1 entered promiscuous mode [ 51.364146] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 51.373550] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 51.431563] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.438058] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.445586] device bridge_slave_0 entered promiscuous mode [ 51.454002] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.460702] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.467834] device bridge_slave_1 entered promiscuous mode [ 51.490791] chnl_net:caif_netlink_parms(): no params data found [ 51.507651] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.515472] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.522436] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.528820] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.538259] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 51.549991] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 51.575403] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 51.583498] team0: Port device team_slave_0 added [ 51.602188] IPVS: ftp: loaded support on port[0] = 21 [ 51.614409] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 51.622167] team0: Port device team_slave_1 added [ 51.628613] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 51.636693] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 51.701949] device hsr_slave_0 entered promiscuous mode [ 51.760364] device hsr_slave_1 entered promiscuous mode [ 51.805001] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 51.813508] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 51.875959] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.883143] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.892158] device bridge_slave_0 entered promiscuous mode [ 51.912654] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.920099] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.926817] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.933744] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.942026] chnl_net:caif_netlink_parms(): no params data found [ 51.953456] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.959927] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.968962] device bridge_slave_1 entered promiscuous mode [ 51.992161] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 52.001112] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.018554] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.027949] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.035240] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.044312] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.060212] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 52.073158] IPVS: ftp: loaded support on port[0] = 21 [ 52.091883] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 52.113073] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 52.120583] team0: Port device team_slave_0 added [ 52.126099] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 52.133784] team0: Port device team_slave_1 added [ 52.170802] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 52.185444] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 52.194226] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 52.200419] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.214919] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 52.224170] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 52.232437] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.250455] chnl_net:caif_netlink_parms(): no params data found [ 52.259786] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.266856] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.275790] device bridge_slave_0 entered promiscuous mode [ 52.283459] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 52.320561] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.327021] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.335448] device bridge_slave_1 entered promiscuous mode [ 52.341630] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.349345] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.357252] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.363750] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.374999] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 52.422938] device hsr_slave_0 entered promiscuous mode [ 52.460647] device hsr_slave_1 entered promiscuous mode [ 52.510445] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 52.524004] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.532434] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.540825] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.550847] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 52.567847] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 52.579314] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 52.590689] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 52.612254] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 52.623195] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 52.632879] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 52.648840] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.658137] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 52.683391] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.689957] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.698963] device bridge_slave_0 entered promiscuous mode [ 52.706413] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.712946] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.719984] device bridge_slave_1 entered promiscuous mode [ 52.731728] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 52.739203] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 52.747858] team0: Port device team_slave_0 added [ 52.799054] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 52.807574] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.816995] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.824474] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 52.832016] team0: Port device team_slave_1 added [ 52.837626] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 52.851810] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 52.859456] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 52.872050] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 52.881287] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 52.889273] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 52.896089] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 52.903614] chnl_net:caif_netlink_parms(): no params data found [ 52.921073] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 52.928871] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.944159] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 52.956425] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 52.972905] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 52.980600] team0: Port device team_slave_0 added [ 52.992852] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 53.000642] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.008498] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.017245] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.027733] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 53.034579] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.044166] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 53.051827] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 53.059520] team0: Port device team_slave_1 added [ 53.102087] device hsr_slave_0 entered promiscuous mode [ 53.140412] device hsr_slave_1 entered promiscuous mode [ 53.212818] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 53.220800] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 53.229805] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.240875] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.248929] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 53.265452] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 53.276422] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 53.288597] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.298313] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.308000] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.314594] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.324606] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 53.335084] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 53.342114] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.362419] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.371369] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.380893] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.388674] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.405204] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 53.415655] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 53.434456] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.441453] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.448366] device bridge_slave_0 entered promiscuous mode [ 53.455660] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.462417] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.470227] device bridge_slave_1 entered promiscuous mode [ 53.476709] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.491251] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 53.532219] device hsr_slave_0 entered promiscuous mode [ 53.590494] device hsr_slave_1 entered promiscuous mode [ 53.634364] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 53.646036] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 53.665091] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 53.677474] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.689746] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 53.709505] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.728108] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 53.736850] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.745292] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.754929] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.765286] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.773057] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 53.783614] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 53.792202] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 53.807831] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.817568] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.826643] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.837129] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 53.848227] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 53.858081] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 53.872454] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 53.879694] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.888699] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 53.899812] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 53.912306] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 53.922298] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 53.932366] team0: Port device team_slave_0 added [ 53.938494] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.947884] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.957620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.968155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.977960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 53.986730] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.997178] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 54.007590] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 54.017111] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 54.023539] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.033386] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 54.039746] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.048409] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 54.055835] team0: Port device team_slave_1 added [ 54.061733] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 54.075497] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 54.084969] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 54.094822] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 54.106876] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.117300] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 54.136448] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 54.145650] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.155869] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.162689] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.170643] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 54.179035] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.187144] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.193684] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.202857] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 54.215567] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 54.223005] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 54.230639] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 54.238328] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.247602] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.254379] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.275587] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 54.284305] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 54.301013] [ 54.302842] ====================================================== [ 54.309545] WARNING: possible circular locking dependency detected [ 54.313100] device hsr_slave_0 entered promiscuous mode [ 54.316190] 4.14.172-syzkaller #0 Not tainted [ 54.316192] ------------------------------------------------------ [ 54.316196] syz-executor.1/7037 is trying to acquire lock: [ 54.316198] (event_mutex){+.+.}, at: [] perf_trace_init+0x50/0x9d0 [ 54.316210] [ 54.316210] but task is already holding lock: [ 54.316211] (&cpuctx_mutex/1){+.+.}, at: [] perf_event_ctx_lock_nested+0x109/0x250 [ 54.316224] [ 54.316224] which lock already depends on the new lock. [ 54.316224] [ 54.373051] [ 54.373051] the existing dependency chain (in reverse order) is: [ 54.381405] [ 54.381405] -> #5 (&cpuctx_mutex/1){+.+.}: [ 54.387234] lock_acquire+0x173/0x400 [ 54.391564] __mutex_lock+0xef/0x14c0 [ 54.395956] mutex_lock_nested+0x16/0x20 [ 54.400549] SYSC_perf_event_open+0x110d/0x21b0 [ 54.405779] SyS_perf_event_open+0x9/0x10 [ 54.410444] do_syscall_64+0x1c7/0x5b0 [ 54.414833] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 54.420519] [ 54.420519] -> #4 (&cpuctx_mutex){+.+.}: [ 54.426043] lock_acquire+0x173/0x400 [ 54.430358] __mutex_lock+0xef/0x14c0 [ 54.434666] mutex_lock_nested+0x16/0x20 [ 54.439245] perf_event_init_cpu+0xb6/0x160 [ 54.444312] perf_event_init+0x2cd/0x301 [ 54.448991] start_kernel+0x365/0x642 [ 54.453300] x86_64_start_reservations+0x29/0x2b [ 54.458690] x86_64_start_kernel+0x76/0x79 [ 54.463450] secondary_startup_64+0xa5/0xb0 [ 54.468270] [ 54.468270] -> #3 (pmus_lock){+.+.}: [ 54.473971] lock_acquire+0x173/0x400 [ 54.479452] __mutex_lock+0xef/0x14c0 [ 54.486706] mutex_lock_nested+0x16/0x20 [ 54.491869] perf_event_init_cpu+0x2a/0x160 [ 54.500971] cpuhp_invoke_callback+0x191/0x1610 [ 54.506659] _cpu_up+0x21e/0x540 [ 54.510615] do_cpu_up+0xf1/0x110 [ 54.514829] cpu_up+0xe/0x10 [ 54.519328] smp_init+0x69/0x10c [ 54.523217] kernel_init_freeable+0x2d2/0x4ae [ 54.528238] kernel_init+0xc/0x105 [ 54.532377] ret_from_fork+0x24/0x30 [ 54.536596] [ 54.536596] -> #2 (cpu_hotplug_lock.rw_sem){++++}: [ 54.543806] lock_acquire+0x173/0x400 [ 54.548123] cpus_read_lock+0x38/0xa0 [ 54.552432] static_key_slow_inc+0xd/0x20 [ 54.557101] tracepoint_probe_register_prio+0x4de/0x6e0 [ 54.563052] tracepoint_probe_register+0xe/0x10 [ 54.569464] trace_event_reg+0x14d/0x340 [ 54.574040] perf_trace_init+0x3ce/0x9d0 [ 54.578605] perf_tp_event_init+0x68/0xd0 [ 54.583266] perf_try_init_event+0x138/0x1c0 [ 54.588178] perf_event_alloc+0xe0b/0x2220 [ 54.592920] SYSC_perf_event_open+0x447/0x21b0 [ 54.598015] SyS_perf_event_open+0x9/0x10 [ 54.602685] do_syscall_64+0x1c7/0x5b0 [ 54.607084] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 54.612773] [ 54.612773] -> #1 (tracepoints_mutex){+.+.}: [ 54.618813] lock_acquire+0x173/0x400 [ 54.623263] __mutex_lock+0xef/0x14c0 [ 54.627695] mutex_lock_nested+0x16/0x20 [ 54.632268] tracepoint_probe_register_prio+0x30/0x6e0 [ 54.638059] tracepoint_probe_register+0xe/0x10 [ 54.643249] trace_event_reg+0x14d/0x340 [ 54.647855] perf_trace_init+0x3ce/0x9d0 [ 54.652448] perf_tp_event_init+0x68/0xd0 [ 54.657779] perf_try_init_event+0x138/0x1c0 [ 54.662759] perf_event_alloc+0xe0b/0x2220 [ 54.667680] SYSC_perf_event_open+0x447/0x21b0 [ 54.672777] SyS_perf_event_open+0x9/0x10 [ 54.677941] do_syscall_64+0x1c7/0x5b0 [ 54.683658] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 54.689528] [ 54.689528] -> #0 (event_mutex){+.+.}: [ 54.695018] __lock_acquire+0x2e94/0x4500 [ 54.699686] lock_acquire+0x173/0x400 [ 54.704006] __mutex_lock+0xef/0x14c0 [ 54.708632] mutex_lock_nested+0x16/0x20 [ 54.713193] perf_trace_init+0x50/0x9d0 [ 54.717701] perf_tp_event_init+0x68/0xd0 [ 54.722357] perf_try_init_event+0xcf/0x1c0 [ 54.727197] perf_event_alloc+0xe0b/0x2220 [ 54.732048] SYSC_perf_event_open+0x447/0x21b0 [ 54.737181] SyS_perf_event_open+0x9/0x10 [ 54.741840] do_syscall_64+0x1c7/0x5b0 [ 54.746231] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 54.752271] [ 54.752271] other info that might help us debug this: [ 54.752271] [ 54.760406] Chain exists of: [ 54.760406] event_mutex --> &cpuctx_mutex --> &cpuctx_mutex/1 [ 54.760406] [ 54.770914] Possible unsafe locking scenario: [ 54.770914] [ 54.777233] CPU0 CPU1 [ 54.782099] ---- ---- [ 54.786942] lock(&cpuctx_mutex/1); [ 54.790650] lock(&cpuctx_mutex); [ 54.797556] lock(&cpuctx_mutex/1); [ 54.803782] lock(event_mutex); [ 54.807146] [ 54.807146] *** DEADLOCK *** [ 54.807146] [ 54.813194] 2 locks held by syz-executor.1/7037: [ 54.817940] #0: (&pmus_srcu){....}, at: [] perf_event_alloc+0xc71/0x2220 [ 54.826608] #1: (&cpuctx_mutex/1){+.+.}, at: [] perf_event_ctx_lock_nested+0x109/0x250 [ 54.837056] [ 54.837056] stack backtrace: [ 54.841731] CPU: 0 PID: 7037 Comm: syz-executor.1 Not tainted 4.14.172-syzkaller #0 [ 54.849767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.863599] Call Trace: [ 54.866304] dump_stack+0xf7/0x13b [ 54.869995] print_circular_bug.isra.40.cold.67+0x1bd/0x27d [ 54.875968] ? save_trace+0xe0/0x290 [ 54.879879] __lock_acquire+0x2e94/0x4500 [ 54.885680] ? trace_hardirqs_on+0x10/0x10 [ 54.889961] ? trace_hardirqs_off+0x10/0x10 [ 54.894272] ? unwind_get_return_address+0x61/0xa0 [ 54.899296] ? perf_trace_init+0x50/0x9d0 [ 54.904007] lock_acquire+0x173/0x400 [ 54.907899] ? perf_trace_init+0x50/0x9d0 [ 54.912385] ? perf_trace_init+0x50/0x9d0 [ 54.916526] ? perf_trace_init+0x50/0x9d0 [ 54.920774] __mutex_lock+0xef/0x14c0 [ 54.924645] ? perf_trace_init+0x50/0x9d0 [ 54.928792] ? perf_event_ctx_lock_nested+0x109/0x250 [ 54.934261] ? perf_trace_init+0x50/0x9d0 [ 54.938865] ? perf_event_ctx_lock_nested+0x109/0x250 [ 54.945093] ? mutex_lock_io_nested+0x1380/0x1380 [ 54.949919] ? perf_event_ctx_lock_nested+0x109/0x250 [ 54.955101] ? find_held_lock+0x36/0x1d0 [ 54.959156] ? mutex_lock_io_nested+0x1380/0x1380 [ 54.964048] ? find_held_lock+0x36/0x1d0 [ 54.968203] mutex_lock_nested+0x16/0x20 [ 54.972410] ? mutex_lock_nested+0x16/0x20 [ 54.976863] perf_trace_init+0x50/0x9d0 [ 54.980828] ? mutex_lock_nested+0x16/0x20 [ 54.985292] perf_tp_event_init+0x68/0xd0 [ 54.990043] perf_try_init_event+0xcf/0x1c0 [ 54.994404] perf_event_alloc+0xe0b/0x2220 [ 54.998641] SYSC_perf_event_open+0x447/0x21b0 [ 55.003263] ? kasan_check_read+0x11/0x20 [ 55.007475] ? _copy_to_user+0x91/0xb0 [ 55.011467] ? perf_event_set_output+0x400/0x400 [ 55.016480] ? do_syscall_64+0x4c/0x5b0 [ 55.020437] ? perf_bp_event+0x150/0x150 [ 55.024904] SyS_perf_event_open+0x9/0x10 [ 55.029376] do_syscall_64+0x1c7/0x5b0 [ 55.033473] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.038303] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 55.043730] RIP: 0033:0x459879 [ 55.047103] RSP: 002b:00007f39ee704c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 55.054798] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000459879 [ 55.062150] RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000 [ 55.070319] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 55.077692] R10: 0000000000000003 R11: 0000000000000246 R12: 00007f39ee7056d4 [ 55.085281] R13: 00000000004c66e4 R14: 00000000004db758 R15: 00000000ffffffff [ 55.111052] device hsr_slave_1 entered promiscuous mode [ 55.140500] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 55.147981] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 55.155063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.162601] ------------[ cut here ]------------ [ 55.162959] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 55.167383] WARNING: CPU: 0 PID: 7039 at kernel/events/core.c:1685 add_event_to_ctx+0xb23/0x1460 [ 55.167387] Kernel panic - not syncing: panic_on_warn set ... [ 55.167387] [ 55.167391] CPU: 0 PID: 7039 Comm: syz-executor.1 Not tainted 4.14.172-syzkaller #0 [ 55.167394] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.167396] Call Trace: [ 55.167406] dump_stack+0xf7/0x13b [ 55.167411] ? add_event_to_ctx+0xb23/0x1460 [ 55.219075] panic+0x1b0/0x358 [ 55.223016] ? add_taint.cold.5+0x11/0x11 [ 55.227150] ? add_event_to_ctx+0xb23/0x1460 [ 55.231576] __warn.cold.8+0x25/0x2c [ 55.235628] ? add_event_to_ctx+0xb23/0x1460 [ 55.240210] report_bug+0x1a4/0x1f3 [ 55.243852] do_error_trap+0x1bd/0x310 [ 55.247931] ? math_error+0x300/0x300 [ 55.251824] ? trace_hardirqs_on+0x10/0x10 [ 55.256188] ? __update_idle_core+0x1e2/0x3f0 [ 55.260999] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.265873] do_invalid_op+0x1b/0x20 [ 55.269769] invalid_op+0x1b/0x40 [ 55.273219] RIP: 0010:add_event_to_ctx+0xb23/0x1460 [ 55.278461] RSP: 0018:ffff88808a9e7af8 EFLAGS: 00010006 [ 55.283811] RAX: dffffc0000000000 RBX: ffff8880a8c3cec0 RCX: 0000000000000000 [ 55.292089] RDX: 1ffff11015187a19 RSI: ffff8880aee300b0 RDI: ffff8880a8c3d0c8 [ 55.299453] RBP: ffff88808a9e7b58 R08: ffff8880aee300b0 R09: 0000000000000001 [ 55.306719] R10: ffff88808a9e7d80 R11: ffff88809427c680 R12: ffffe8ffffc12960 [ 55.313999] R13: ffff8880a8c3cf4c R14: ffff88809363ae80 R15: ffff8880aee2ffc0 [ 55.321636] ? add_event_to_ctx+0x463/0x1460 [ 55.326032] __perf_install_in_context+0x3e6/0x850 [ 55.330945] ? __mutex_lock+0x620/0x14c0 [ 55.335582] ? ctx_resched+0xe0/0xe0 [ 55.339315] ? perf_duration_warn+0x30/0x30 [ 55.343780] remote_function+0xff/0x180 [ 55.347747] generic_exec_single+0x1f5/0x3a0 [ 55.352138] ? perf_duration_warn+0x30/0x30 [ 55.356459] ? perf_duration_warn+0x30/0x30 [ 55.361911] smp_call_function_single+0xcb/0x330 [ 55.366666] ? generic_exec_single+0x3a0/0x3a0 [ 55.371429] ? anon_inode_getfile+0x178/0x380 [ 55.376527] perf_install_in_context+0x264/0x2c0 [ 55.381370] ? add_event_to_ctx+0x1460/0x1460 [ 55.385859] ? ctx_resched+0xe0/0xe0 [ 55.389621] SYSC_perf_event_open+0x165c/0x21b0 [ 55.394302] ? perf_event_set_output+0x400/0x400 [ 55.399068] ? perf_bp_event+0x150/0x150 [ 55.403116] SyS_perf_event_open+0x9/0x10 [ 55.407250] do_syscall_64+0x1c7/0x5b0 [ 55.411135] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.416502] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 55.421675] RIP: 0033:0x459879 [ 55.424851] RSP: 002b:00007f39ee6e3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 55.432543] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000459879 [ 55.439994] RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000 [ 55.447683] RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 [ 55.455017] R10: 0000000000000003 R11: 0000000000000246 R12: 00007f39ee6e46d4 [ 55.462368] R13: 00000000004c66e4 R14: 00000000004db758 R15: 00000000ffffffff [ 55.471266] Kernel Offset: disabled [ 55.475187] Rebooting in 86400 seconds..