[ 22.708682] audit: type=1800 audit(1573336597.849:26): pid=5713 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 22.741737] audit: type=1800 audit(1573336597.849:27): pid=5713 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 35.731199] IPVS: ftp: loaded support on port[0] = 21 [ 65.710359] can: request_module (can-proto-0) failed. [ 65.720355] can: request_module (can-proto-0) failed. Warning: Permanently added '10.128.10.46' (ECDSA) to the list of known hosts. 2019/11/09 21:57:30 parsed 1 programs 2019/11/09 21:57:30 executed programs: 0 [ 75.639930] IPVS: ftp: loaded support on port[0] = 21 [ 75.661432] IPVS: ftp: loaded support on port[0] = 21 [ 75.680337] IPVS: ftp: loaded support on port[0] = 21 [ 75.723647] IPVS: ftp: loaded support on port[0] = 21 [ 75.739664] IPVS: ftp: loaded support on port[0] = 21 [ 75.749840] IPVS: ftp: loaded support on port[0] = 21 [ 76.573061] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.588734] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.600014] device bridge_slave_0 entered promiscuous mode [ 76.617699] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.624101] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.633775] device bridge_slave_0 entered promiscuous mode [ 76.668007] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.677652] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.689457] device bridge_slave_1 entered promiscuous mode [ 76.698761] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.708283] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.716000] device bridge_slave_0 entered promiscuous mode [ 76.724948] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.731323] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.738936] device bridge_slave_1 entered promiscuous mode [ 76.769947] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.780444] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.795249] device bridge_slave_1 entered promiscuous mode [ 76.803208] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.810217] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.817444] device bridge_slave_0 entered promiscuous mode [ 76.828665] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.835225] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.845371] device bridge_slave_0 entered promiscuous mode [ 76.853411] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.859911] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.867009] device bridge_slave_0 entered promiscuous mode [ 76.880200] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.891231] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.900204] device bridge_slave_1 entered promiscuous mode [ 76.913415] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.919908] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.930463] device bridge_slave_1 entered promiscuous mode [ 76.939900] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.946630] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.953732] device bridge_slave_1 entered promiscuous mode [ 77.024145] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.082061] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.108528] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.143597] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.177790] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.192442] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.216996] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.239152] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.252230] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.295821] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.305797] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.324055] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.335375] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.363107] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.381281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.390330] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.436359] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.453403] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.480894] team0: Port device team_slave_0 added [ 77.490511] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.501439] team0: Port device team_slave_0 added [ 77.515446] team0: Port device team_slave_0 added [ 77.530652] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.560302] team0: Port device team_slave_1 added [ 77.575410] team0: Port device team_slave_1 added [ 77.585439] team0: Port device team_slave_1 added [ 77.596240] team0: Port device team_slave_0 added [ 77.605311] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.624801] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.650672] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.679501] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.689606] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.704286] team0: Port device team_slave_1 added [ 77.716413] team0: Port device team_slave_0 added [ 77.736910] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.762547] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.776474] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.784609] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.795067] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.807297] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.816486] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.833658] team0: Port device team_slave_0 added [ 77.844016] team0: Port device team_slave_1 added [ 77.853278] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.862205] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.883833] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.896625] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.911946] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.922818] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.933935] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.947989] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.958449] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.973935] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.985055] team0: Port device team_slave_1 added [ 78.003612] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.023577] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.039797] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.055346] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.063867] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.097446] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.107405] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.117419] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.140510] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.149574] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.170004] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.212292] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.234287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.273138] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.285905] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.480399] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.486988] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.494219] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.500860] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.576032] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.582442] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.589107] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.595507] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.638944] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.645500] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.652155] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.658580] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.724406] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.730812] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.739715] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.746131] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.775866] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.782305] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.788983] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.795371] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.904049] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.910822] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.918093] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.924455] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.315574] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.323398] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.346875] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.354144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.361840] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.370615] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 80.548522] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.636608] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.650235] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.744243] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.902470] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.918946] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.931226] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.988523] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.032710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.044993] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.073920] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.089318] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.102933] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.132582] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.160673] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.221600] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.268871] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.331203] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.402083] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.415514] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.445540] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.452731] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.589301] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.642970] 8021q: adding VLAN 0 to HW filter on device team0 2019/11/09 21:57:37 executed programs: 6 [ 248.424616] INFO: task syz-executor3:8382 blocked for more than 143 seconds. [ 248.432061] Not tainted 5.4.0-rc6+ #0 [ 248.438352] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 248.446640] syz-executor3 D27736 8382 5959 0x00004004 [ 248.452270] Call Trace: [ 248.458918] __schedule+0x8ca/0x19f0 [ 248.462642] ? __sched_text_start+0x8/0x8 [ 248.467097] schedule+0xc0/0x260 [ 248.470548] schedule_preempt_disabled+0x13/0x20 [ 248.475546] __mutex_lock+0x8bf/0x1410 [ 248.479484] ? ctrl_getfamily+0x2c0/0x400 [ 248.483624] ? mutex_lock_io_nested+0x1280/0x1280 [ 248.488994] ? lock_acquire+0x194/0x410 [ 248.492967] ? ctrl_getfamily+0x2b2/0x400 [ 248.497659] ? down_read_killable+0x480/0x480 [ 248.502156] mutex_lock_nested+0x16/0x20 [ 248.506516] ? mutex_lock_nested+0x16/0x20 [ 248.510750] ctrl_getfamily+0x2c0/0x400 [ 248.515023] genl_family_rcv_msg+0x5d5/0x1160 [ 248.519514] ? find_held_lock+0x36/0x1d0 [ 248.523568] ? genl_unregister_family+0x6e0/0x6e0 [ 248.528832] ? __kasan_check_read+0x11/0x20 [ 248.533151] ? __lock_acquire+0x96a/0x4ef0 [ 248.537673] genl_rcv_msg+0xa7/0x140 [ 248.541387] netlink_rcv_skb+0x13f/0x380 [ 248.545697] ? genl_family_rcv_msg+0x1160/0x1160 [ 248.550447] ? netlink_ack+0x980/0x980 [ 248.554616] ? netlink_deliver_tap+0x182/0xad0 [ 248.559193] ? __kasan_check_read+0x11/0x20 [ 248.563507] genl_rcv+0x23/0x40 [ 248.567904] netlink_unicast+0x444/0x640 [ 248.571967] ? netlink_attachskb+0x6f0/0x6f0 [ 248.576699] ? _copy_from_iter_full+0x19e/0x7f0 [ 248.581365] ? __kasan_check_read+0x11/0x20 [ 248.586099] ? __check_object_size+0x203/0x2ea [ 248.590682] netlink_sendmsg+0x75d/0xc40 [ 248.594981] ? netlink_unicast+0x640/0x640 [ 248.599285] ? apparmor_socket_sendmsg+0x1b/0x20 [ 248.604040] ? netlink_unicast+0x640/0x640 [ 248.608624] sock_sendmsg+0xe6/0x110 [ 248.612333] ___sys_sendmsg+0x658/0x980 [ 248.616619] ? copy_msghdr_from_user+0x420/0x420 [ 248.621372] ? lock_downgrade+0x900/0x900 [ 248.625782] ? __kasan_check_read+0x11/0x20 [ 248.630125] ? __fget+0x2b1/0x420 [ 248.633579] ? ksys_dup3+0x2e0/0x2e0 [ 248.637578] ? __fget_light+0x179/0x1f0 [ 248.641546] ? __fdget+0xe/0x10 [ 248.645067] __sys_sendmsg+0xd9/0x180 [ 248.648859] ? __sys_sendmsg_sock+0xb0/0xb0 [ 248.653258] ? __fd_install+0x179/0x4b0 [ 248.657485] ? fd_install+0x47/0x60 [ 248.661116] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 248.666726] __x64_sys_sendmsg+0x73/0xb0 [ 248.670785] do_syscall_64+0xd0/0x5e0 [ 248.674869] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 248.680054] RIP: 0033:0x411231 [ 248.683239] Code: 01 4c 89 54 24 28 e9 6f fa ff ff 49 8b 7c 24 70 8b 35 43 c4 24 00 ff 15 ed 83 24 00 85 c0 0f 85 b3 fe ff ff 49 8b 7c 24 70 be <20> 13 41 00 ff 15 dd 83 24 00 85 c0 0f 85 9b fe ff ff 49 8b 7c 24 [ 248.703292] RSP: 002b:00007f8b23fcd9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 248.711264] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000411231 [ 248.718833] RDX: 0000000000000000 RSI: 00007f8b23fcda00 RDI: 0000000000000006 [ 248.726324] RBP: 0000000000000006 R08: 00007f8b23fcd9d0 R09: 000000000072bf00 [ 248.733587] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f8b23fcda40 [ 248.741153] R13: 00000000004cc510 R14: 00000000004d99f0 R15: 00000000ffffffff [ 248.748693] INFO: task syz-executor1:8384 blocked for more than 143 seconds. [ 248.756081] Not tainted 5.4.0-rc6+ #0 [ 248.760394] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 248.768604] syz-executor1 D27736 8384 5962 0x00004004 [ 248.774233] Call Trace: [ 248.777090] __schedule+0x8ca/0x19f0 [ 248.780803] ? __sched_text_start+0x8/0x8 [ 248.785340] schedule+0xc0/0x260 [ 248.788717] schedule_preempt_disabled+0x13/0x20 [ 248.793477] __mutex_lock+0x8bf/0x1410 [ 248.797801] ? ctrl_getfamily+0x2c0/0x400 [ 248.801959] ? mutex_lock_io_nested+0x1280/0x1280 [ 248.807076] ? lock_acquire+0x194/0x410 [ 248.811133] ? ctrl_getfamily+0x2b2/0x400 [ 248.816526] ? down_read_killable+0x480/0x480 [ 248.821032] mutex_lock_nested+0x16/0x20 [ 248.826167] ? mutex_lock_nested+0x16/0x20 [ 248.830400] ctrl_getfamily+0x2c0/0x400 [ 248.834615] genl_family_rcv_msg+0x5d5/0x1160 [ 248.839102] ? find_held_lock+0x36/0x1d0 [ 248.843168] ? genl_unregister_family+0x6e0/0x6e0 [ 248.848360] ? __kasan_check_read+0x11/0x20 [ 248.852682] ? __lock_acquire+0x96a/0x4ef0 [ 248.857182] genl_rcv_msg+0xa7/0x140 [ 248.860915] netlink_rcv_skb+0x13f/0x380 [ 248.865221] ? genl_family_rcv_msg+0x1160/0x1160 [ 248.869971] ? netlink_ack+0x980/0x980 [ 248.873852] ? netlink_deliver_tap+0x182/0xad0 [ 248.878700] ? __kasan_check_read+0x11/0x20 [ 248.883019] genl_rcv+0x23/0x40 [ 248.886519] netlink_unicast+0x444/0x640 [ 248.890586] ? netlink_attachskb+0x6f0/0x6f0 [ 248.895227] ? _copy_from_iter_full+0x19e/0x7f0 [ 248.900034] ? __kasan_check_read+0x11/0x20 [ 248.904810] ? __check_object_size+0x203/0x2ea [ 248.909443] netlink_sendmsg+0x75d/0xc40 [ 248.913515] ? netlink_unicast+0x640/0x640 [ 248.918186] ? apparmor_socket_sendmsg+0x1b/0x20 [ 248.922949] ? netlink_unicast+0x640/0x640 [ 248.927481] sock_sendmsg+0xe6/0x110 [ 248.931197] ___sys_sendmsg+0x658/0x980 [ 248.935442] ? copy_msghdr_from_user+0x420/0x420 [ 248.940201] ? lock_downgrade+0x900/0x900 [ 248.944652] ? __kasan_check_read+0x11/0x20 [ 248.948973] ? __fget+0x2b1/0x420 [ 248.952446] ? ksys_dup3+0x2e0/0x2e0 [ 248.957505] ? __fget_light+0x179/0x1f0 [ 248.961488] ? __fdget+0xe/0x10 [ 248.965117] __sys_sendmsg+0xd9/0x180 [ 248.968927] ? __sys_sendmsg_sock+0xb0/0xb0 [ 248.973255] ? __fd_install+0x179/0x4b0 [ 248.977659] ? fd_install+0x47/0x60 [ 248.981298] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 248.986967] __x64_sys_sendmsg+0x73/0xb0 [ 248.991029] do_syscall_64+0xd0/0x5e0 [ 248.995099] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 249.000287] RIP: 0033:0x411231 [ 249.003472] Code: 01 4c 89 54 24 28 e9 6f fa ff ff 49 8b 7c 24 70 8b 35 43 c4 24 00 ff 15 ed 83 24 00 85 c0 0f 85 b3 fe ff ff 49 8b 7c 24 70 be <20> 13 41 00 ff 15 dd 83 24 00 85 c0 0f 85 9b fe ff ff 49 8b 7c 24 [ 249.022811] RSP: 002b:00007fa009c609c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 249.030837] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000411231 [ 249.038318] RDX: 0000000000000000 RSI: 00007fa009c60a00 RDI: 0000000000000004 [ 249.045907] RBP: 0000000000000004 R08: 00007fa009c609d0 R09: 000000000072bf00 [ 249.053180] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fa009c60a40 [ 249.061127] R13: 00000000004cc510 R14: 00000000004d99f0 R15: 00000000ffffffff [ 249.068841] INFO: task syz-executor1:8402 blocked for more than 144 seconds. [ 249.076312] Not tainted 5.4.0-rc6+ #0 [ 249.080627] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 249.089610] syz-executor1 D26568 8402 5962 0x00004004 [ 249.095465] Call Trace: [ 249.098067] __schedule+0x8ca/0x19f0 [ 249.101777] ? __sched_text_start+0x8/0x8 [ 249.106236] schedule+0xc0/0x260 [ 249.109610] schedule_preempt_disabled+0x13/0x20 [ 249.114598] __mutex_lock+0x8bf/0x1410 [ 249.118477] ? genl_rcv_msg+0x10e/0x140 [ 249.122468] ? mutex_lock_io_nested+0x1280/0x1280 [ 249.127722] ? __kasan_check_read+0x11/0x20 [ 249.132070] ? __lock_acquire+0x100f/0x4ef0 [ 249.136767] ? __kasan_check_read+0x11/0x20 [ 249.141108] ? __lock_acquire+0x96a/0x4ef0 [ 249.145860] ? mark_held_locks+0x130/0x130 [ 249.150181] mutex_lock_nested+0x16/0x20 [ 249.154237] ? mutex_lock_nested+0x16/0x20 [ 249.158776] genl_rcv_msg+0x10e/0x140 [ 249.162576] netlink_rcv_skb+0x13f/0x380 [ 249.166910] ? genl_family_rcv_msg+0x1160/0x1160 [ 249.171660] ? netlink_ack+0x980/0x980 [ 249.175794] ? netlink_deliver_tap+0x182/0xad0 [ 249.180367] ? __kasan_check_read+0x11/0x20 [ 249.184930] genl_rcv+0x23/0x40 [ 249.188205] netlink_unicast+0x444/0x640 [ 249.192262] ? netlink_attachskb+0x6f0/0x6f0 [ 249.196947] ? _copy_from_iter_full+0x19e/0x7f0 [ 249.201615] ? __kasan_check_read+0x11/0x20 [ 249.206274] ? __check_object_size+0x203/0x2ea [ 249.210858] netlink_sendmsg+0x75d/0xc40 [ 249.215994] ? netlink_unicast+0x640/0x640 [ 249.220260] ? apparmor_socket_sendmsg+0x1b/0x20 [ 249.225536] ? netlink_unicast+0x640/0x640 [ 249.229790] sock_sendmsg+0xe6/0x110 [ 249.233713] ___sys_sendmsg+0x658/0x980 [ 249.238136] ? copy_msghdr_from_user+0x420/0x420 [ 249.242899] ? lock_downgrade+0x900/0x900 [ 249.247363] ? __kasan_check_read+0x11/0x20 [ 249.251694] ? __fget+0x2b1/0x420 [ 249.255379] ? ksys_dup3+0x2e0/0x2e0 [ 249.259089] ? __fget_light+0x179/0x1f0 [ 249.263066] ? __fdget+0xe/0x10 [ 249.266728] __sys_sendmsg+0xd9/0x180 [ 249.270523] ? __sys_sendmsg_sock+0xb0/0xb0 [ 249.275432] ? __fd_install+0x179/0x4b0 [ 249.279421] ? fd_install+0x47/0x60 [ 249.283104] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 249.289388] __x64_sys_sendmsg+0x73/0xb0 [ 249.293466] do_syscall_64+0xd0/0x5e0 [ 249.297541] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 249.305753] RIP: 0033:0x411231 [ 249.308952] Code: 01 4c 89 54 24 28 e9 6f fa ff ff 49 8b 7c 24 70 8b 35 43 c4 24 00 ff 15 ed 83 24 00 85 c0 0f 85 b3 fe ff ff 49 8b 7c 24 70 be <20> 13 41 00 ff 15 dd 83 24 00 85 c0 0f 85 9b fe ff ff 49 8b 7c 24 [ 249.328168] RSP: 002b:00007fa009c3f9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 249.336132] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000411231 [ 249.343486] RDX: 0000000000000000 RSI: 00007fa009c3fa00 RDI: 0000000000000007 [ 249.351839] RBP: 0000000000000007 R08: 00007fa009c3f9d0 R09: 000000000072bfa0 [ 249.359351] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fa009c3fa40 [ 249.366833] R13: 00000000004cc510 R14: 00000000004d99f0 R15: 00000000ffffffff [ 249.374120] INFO: task syz-executor1:8417 blocked for more than 144 seconds. [ 249.381570] Not tainted 5.4.0-rc6+ #0 [ 249.386556] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 249.394761] syz-executor1 D29008 8417 5962 0x00004004 [ 249.400399] Call Trace: [ 249.402987] __schedule+0x8ca/0x19f0 [ 249.406958] ? __sched_text_start+0x8/0x8 [ 249.411119] schedule+0xc0/0x260 [ 249.414846] schedule_preempt_disabled+0x13/0x20 [ 249.419626] __mutex_lock+0x8bf/0x1410 [ 249.423513] ? genl_rcv_msg+0x10e/0x140 [ 249.427806] ? mutex_lock_io_nested+0x1280/0x1280 [ 249.432650] ? __kasan_check_read+0x11/0x20 [ 249.437223] ? __lock_acquire+0x100f/0x4ef0 [ 249.441551] ? __kasan_check_read+0x11/0x20 [ 249.446139] ? __lock_acquire+0x96a/0x4ef0 [ 249.450408] ? mark_held_locks+0x130/0x130 [ 249.454896] mutex_lock_nested+0x16/0x20 [ 249.458974] ? mutex_lock_nested+0x16/0x20 [ 249.463206] genl_rcv_msg+0x10e/0x140 [ 249.467259] netlink_rcv_skb+0x13f/0x380 [ 249.471435] ? genl_family_rcv_msg+0x1160/0x1160 [ 249.477214] ? netlink_ack+0x980/0x980 [ 249.481178] ? netlink_deliver_tap+0x182/0xad0 [ 249.485991] ? __kasan_check_read+0x11/0x20 [ 249.490320] genl_rcv+0x23/0x40 [ 249.493587] netlink_unicast+0x444/0x640 [ 249.498382] ? netlink_attachskb+0x6f0/0x6f0 [ 249.502833] ? _copy_from_iter_full+0x19e/0x7f0 [ 249.507961] ? __kasan_check_read+0x11/0x20 [ 249.512292] ? __check_object_size+0x203/0x2ea [ 249.517160] netlink_sendmsg+0x75d/0xc40 [ 249.521223] ? netlink_unicast+0x640/0x640 [ 249.525728] ? apparmor_socket_sendmsg+0x1b/0x20 [ 249.530488] ? netlink_unicast+0x640/0x640 [ 249.535030] sock_sendmsg+0xe6/0x110 [ 249.538744] ___sys_sendmsg+0x658/0x980 [ 249.542719] ? copy_msghdr_from_user+0x420/0x420 [ 249.547839] ? lock_downgrade+0x900/0x900 [ 249.552017] ? __kasan_check_read+0x11/0x20 [ 249.556742] ? __fget+0x2b1/0x420 [ 249.560211] ? ksys_dup3+0x2e0/0x2e0 [ 249.563950] ? __fget_light+0x179/0x1f0 [ 249.568306] ? __fdget+0xe/0x10 [ 249.571678] __sys_sendmsg+0xd9/0x180 [ 249.575731] ? __sys_sendmsg_sock+0xb0/0xb0 [ 249.580053] ? __fd_install+0x179/0x4b0 [ 249.584022] ? fd_install+0x47/0x60 [ 249.587905] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 249.593272] __x64_sys_sendmsg+0x73/0xb0 [ 249.597562] do_syscall_64+0xd0/0x5e0 [ 249.601663] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 249.608115] RIP: 0033:0x411231 [ 249.611314] Code: 01 4c 89 54 24 28 e9 6f fa ff ff 49 8b 7c 24 70 8b 35 43 c4 24 00 ff 15 ed 83 24 00 85 c0 0f 85 b3 fe ff ff 49 8b 7c 24 70 be <20> 13 41 00 ff 15 dd 83 24 00 85 c0 0f 85 9b fe ff ff 49 8b 7c 24 [ 249.630731] RSP: 002b:00007fa009c1e9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 249.638783] RAX: ffffffffffffffda RBX: 00007fa009c1ea58 RCX: 0000000000411231 [ 249.649943] RDX: 0000000000000000 RSI: 00007fa009c1ea00 RDI: 0000000000000009 [ 249.657416] RBP: 0000000000000009 R08: 000000000000000b R09: 0000000000000000 [ 249.664900] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fa009c1ea40 [ 249.672169] R13: 00000000004cc510 R14: 00000000004d99f0 R15: 00000000ffffffff [ 249.679710] INFO: task syz-executor1:8418 blocked for more than 144 seconds. [ 249.687119] Not tainted 5.4.0-rc6+ #0 [ 249.691434] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 249.699736] syz-executor1 D29008 8418 5962 0x00000004 [ 249.705772] Call Trace: [ 249.708374] __schedule+0x8ca/0x19f0 [ 249.712084] ? __sched_text_start+0x8/0x8 [ 249.716487] schedule+0xc0/0x260 [ 249.719851] schedule_preempt_disabled+0x13/0x20 [ 249.724875] __mutex_lock+0x8bf/0x1410 [ 249.728933] ? genl_rcv_msg+0x10e/0x140 [ 249.732902] ? mutex_lock_io_nested+0x1280/0x1280 [ 249.739060] ? __kasan_check_read+0x11/0x20 [ 249.743384] ? __lock_acquire+0x100f/0x4ef0 [ 249.747956] ? __kasan_check_read+0x11/0x20 [ 249.752291] ? __lock_acquire+0x96a/0x4ef0 [ 249.756967] ? mark_held_locks+0x130/0x130 [ 249.761214] mutex_lock_nested+0x16/0x20 [ 249.765508] ? mutex_lock_nested+0x16/0x20 [ 249.769740] genl_rcv_msg+0x10e/0x140 [ 249.773532] netlink_rcv_skb+0x13f/0x380 [ 249.777895] ? genl_family_rcv_msg+0x1160/0x1160 [ 249.782649] ? netlink_ack+0x980/0x980 [ 249.786786] ? netlink_deliver_tap+0x182/0xad0 [ 249.791361] ? __kasan_check_read+0x11/0x20 [ 249.795913] genl_rcv+0x23/0x40 [ 249.799237] netlink_unicast+0x444/0x640 [ 249.803318] ? netlink_attachskb+0x6f0/0x6f0 [ 249.808110] ? _copy_from_iter_full+0x19e/0x7f0 [ 249.812958] ? __kasan_check_read+0x11/0x20 [ 249.817607] ? __check_object_size+0x203/0x2ea [ 249.822193] netlink_sendmsg+0x75d/0xc40 [ 249.826499] ? netlink_unicast+0x640/0x640 [ 249.830743] ? apparmor_socket_sendmsg+0x1b/0x20 [ 249.835762] ? netlink_unicast+0x640/0x640 [ 249.840005] sock_sendmsg+0xe6/0x110 [ 249.843728] ___sys_sendmsg+0x658/0x980 [ 249.847964] ? copy_msghdr_from_user+0x420/0x420 [ 249.852730] ? lock_downgrade+0x900/0x900 [ 249.857104] ? __kasan_check_read+0x11/0x20 [ 249.861432] ? __fget+0x2b1/0x420 [ 249.865914] ? ksys_dup3+0x2e0/0x2e0 [ 249.869724] ? __might_fault+0xf1/0x1b0 [ 249.873701] ? __fget_light+0x179/0x1f0 [ 249.877976] ? lock_acquire+0x194/0x410 [ 249.881945] ? __fdget+0xe/0x10 [ 249.885443] __sys_sendmsg+0xd9/0x180 [ 249.889238] ? __sys_sendmsg_sock+0xb0/0xb0 [ 249.893549] ? __kasan_check_read+0x11/0x20 [ 249.898194] ? _copy_to_user+0xcb/0xf0 [ 249.902085] ? put_timespec64+0xa9/0x100 [ 249.906387] ? nsecs_to_jiffies+0x20/0x20 [ 249.910568] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 249.916294] __x64_sys_sendmsg+0x73/0xb0 [ 249.920365] do_syscall_64+0xd0/0x5e0 [ 249.924162] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 249.929630] RIP: 0033:0x4577a9 [ 249.932833] Code: Bad RIP value. [ 249.936404] RSP: 002b:00007fa009bfdc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 249.944109] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004577a9 [ 249.951638] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000006 [ 249.959145] RBP: 000000000072c0e0 R08: 0000000000000000 R09: 0000000000000000 [ 249.966907] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa009bfe6d4 [ 249.974184] R13: 00000000004c4211 R14: 00000000004d70f8 R15: 00000000ffffffff [ 249.981880] INFO: task syz-executor0:8390 blocked for more than 144 seconds. [ 249.989294] Not tainted 5.4.0-rc6+ #0 [ 249.993607] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 250.002835] syz-executor0 D27736 8390 5958 0x00004004 [ 250.008759] Call Trace: [ 250.011348] __schedule+0x8ca/0x19f0 [ 250.015272] ? __sched_text_start+0x8/0x8 [ 250.019528] schedule+0xc0/0x260 [ 250.022910] schedule_preempt_disabled+0x13/0x20 [ 250.028021] __mutex_lock+0x8bf/0x1410 [ 250.031904] ? ctrl_getfamily+0x2c0/0x400 [ 250.036262] ? mutex_lock_io_nested+0x1280/0x1280 [ 250.041099] ? lock_acquire+0x194/0x410 [ 250.045282] ? ctrl_getfamily+0x2b2/0x400 [ 250.049448] ? down_read_killable+0x480/0x480 [ 250.053945] mutex_lock_nested+0x16/0x20 [ 250.058345] ? mutex_lock_nested+0x16/0x20 [ 250.062576] ctrl_getfamily+0x2c0/0x400 [ 250.066762] genl_family_rcv_msg+0x5d5/0x1160 [ 250.071254] ? find_held_lock+0x36/0x1d0 [ 250.075632] ? genl_unregister_family+0x6e0/0x6e0 [ 250.080470] ? __kasan_check_read+0x11/0x20 [ 250.085044] ? __lock_acquire+0x96a/0x4ef0 [ 250.089303] genl_rcv_msg+0xa7/0x140 [ 250.093018] netlink_rcv_skb+0x13f/0x380 [ 250.097334] ? genl_family_rcv_msg+0x1160/0x1160 [ 250.102093] ? netlink_ack+0x980/0x980 [ 250.106236] ? netlink_deliver_tap+0x182/0xad0 [ 250.110815] ? __kasan_check_read+0x11/0x20 [ 250.115475] genl_rcv+0x23/0x40 [ 250.118780] netlink_unicast+0x444/0x640 [ 250.122843] ? netlink_attachskb+0x6f0/0x6f0 [ 250.128337] ? _copy_from_iter_full+0x19e/0x7f0 [ 250.133006] ? __kasan_check_read+0x11/0x20 [ 250.137651] ? __check_object_size+0x203/0x2ea [ 250.142249] netlink_sendmsg+0x75d/0xc40 [ 250.146683] ? netlink_unicast+0x640/0x640 [ 250.150985] ? apparmor_socket_sendmsg+0x1b/0x20 [ 250.156278] ? netlink_unicast+0x640/0x640 [ 250.160533] sock_sendmsg+0xe6/0x110 [ 250.164723] ___sys_sendmsg+0x658/0x980 [ 250.168696] ? copy_msghdr_from_user+0x420/0x420 [ 250.173440] ? lock_downgrade+0x900/0x900 [ 250.177854] ? __kasan_check_read+0x11/0x20 [ 250.182174] ? __fget+0x2b1/0x420 [ 250.185932] ? ksys_dup3+0x2e0/0x2e0 [ 250.189654] ? __fget_light+0x179/0x1f0 [ 250.193623] ? __fdget+0xe/0x10 [ 250.197143] __sys_sendmsg+0xd9/0x180 [ 250.200943] ? __sys_sendmsg_sock+0xb0/0xb0 [ 250.205504] ? __fd_install+0x179/0x4b0 [ 250.209479] ? fd_install+0x47/0x60 [ 250.213115] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 250.218779] __x64_sys_sendmsg+0x73/0xb0 [ 250.222850] do_syscall_64+0xd0/0x5e0 [ 250.226926] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 250.232121] RIP: 0033:0x411231 [ 250.235611] Code: 01 4c 89 54 24 28 e9 6f fa ff ff 49 8b 7c 24 70 8b 35 43 c4 24 00 ff 15 ed 83 24 00 85 c0 0f 85 b3 fe ff ff 49 8b 7c 24 70 be <20> 13 41 00 ff 15 dd 83 24 00 85 c0 0f 85 9b fe ff ff 49 8b 7c 24 [ 250.255603] RSP: 002b:00007fd89bfd49c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 250.263321] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000411231 [ 250.271413] RDX: 0000000000000000 RSI: 00007fd89bfd4a00 RDI: 0000000000000004 [ 250.278949] RBP: 0000000000000004 R08: 00007fd89bfd49d0 R09: 000000000072bf00 [ 250.286452] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fd89bfd4a40 [ 250.293721] R13: 00000000004cc510 R14: 00000000004d99f0 R15: 00000000ffffffff [ 250.301280] INFO: task syz-executor0:8405 blocked for more than 145 seconds. [ 250.308683] Not tainted 5.4.0-rc6+ #0 [ 250.312997] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 250.321205] syz-executor0 D29008 8405 5958 0x00000004 [ 250.327133] Call Trace: [ 250.329724] __schedule+0x8ca/0x19f0 [ 250.333435] ? __sched_text_start+0x8/0x8 [ 250.337828] schedule+0xc0/0x260 [ 250.341195] schedule_preempt_disabled+0x13/0x20 [ 250.346541] __mutex_lock+0x8bf/0x1410 [ 250.350446] ? genl_rcv_msg+0x10e/0x140 [ 250.354807] ? mutex_lock_io_nested+0x1280/0x1280 [ 250.359667] ? __kasan_check_read+0x11/0x20 [ 250.363985] ? __lock_acquire+0x100f/0x4ef0 [ 250.368630] ? __kasan_check_read+0x11/0x20 [ 250.372951] ? __lock_acquire+0x96a/0x4ef0 [ 250.377457] ? mark_held_locks+0x130/0x130 [ 250.381701] mutex_lock_nested+0x16/0x20 [ 250.386760] ? mutex_lock_nested+0x16/0x20 [ 250.391281] genl_rcv_msg+0x10e/0x140 [ 250.395526] netlink_rcv_skb+0x13f/0x380 [ 250.399591] ? genl_family_rcv_msg+0x1160/0x1160 [ 250.404638] ? netlink_ack+0x980/0x980 [ 250.408525] ? netlink_deliver_tap+0x182/0xad0 [ 250.413093] ? __kasan_check_read+0x11/0x20 [ 250.417684] genl_rcv+0x23/0x40 [ 250.420999] netlink_unicast+0x444/0x640 [ 250.425346] ? netlink_attachskb+0x6f0/0x6f0 [ 250.429750] ? _copy_from_iter_full+0x19e/0x7f0 [ 250.434683] ? __kasan_check_read+0x11/0x20 [ 250.439003] ? __check_object_size+0x203/0x2ea [ 250.443587] netlink_sendmsg+0x75d/0xc40 [ 250.447982] ? netlink_unicast+0x640/0x640 [ 250.452218] ? apparmor_socket_sendmsg+0x1b/0x20 [ 250.457331] ? netlink_unicast+0x640/0x640 [ 250.461581] sock_sendmsg+0xe6/0x110 [ 250.465546] ___sys_sendmsg+0x658/0x980 [ 250.469525] ? copy_msghdr_from_user+0x420/0x420 [ 250.474831] ? lock_downgrade+0x900/0x900 [ 250.479067] ? __kasan_check_read+0x11/0x20 [ 250.483462] ? __fget+0x2b1/0x420 [ 250.487242] ? ksys_dup3+0x2e0/0x2e0 [ 250.490960] ? __fget_light+0x179/0x1f0 [ 250.495260] ? __fdget+0xe/0x10 [ 250.498538] __sys_sendmsg+0xd9/0x180 [ 250.502335] ? __sys_sendmsg_sock+0xb0/0xb0 [ 250.507080] ? __fd_install+0x179/0x4b0 [ 250.511065] ? fd_install+0x47/0x60 [ 250.515818] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 250.521198] __x64_sys_sendmsg+0x73/0xb0 [ 250.525603] do_syscall_64+0xd0/0x5e0 [ 250.529403] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 250.534846] RIP: 0033:0x411231 [ 250.538032] Code: 01 4c 89 54 24 28 e9 6f fa ff ff 49 8b 7c 24 70 8b 35 43 c4 24 00 ff 15 ed 83 24 00 85 c0 0f 85 b3 fe ff ff 49 8b 7c 24 70 be <20> 13 41 00 ff 15 dd 83 24 00 85 c0 0f 85 9b fe ff ff 49 8b 7c 24 [ 250.557483] RSP: 002b:00007fd89bfb39c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 250.565539] RAX: ffffffffffffffda RBX: 00007fd89bfb3a58 RCX: 0000000000411231 [ 250.572851] RDX: 0000000000000000 RSI: 00007fd89bfb3a00 RDI: 0000000000000006 [ 250.580484] RBP: 0000000000000006 R08: 000000000000000b R09: 0000000000000000 [ 250.588016] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fd89bfb3a40 [ 250.595697] R13: 00000000004cc510 R14: 00000000004d99f0 R15: 00000000ffffffff [ 250.602996] INFO: task syz-executor0:8411 blocked for more than 145 seconds. [ 250.610530] Not tainted 5.4.0-rc6+ #0 [ 250.615039] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 250.622999] syz-executor0 D28552 8411 5958 0x00004004 [ 250.628948] Call Trace: [ 250.631543] __schedule+0x8ca/0x19f0 [ 250.635477] ? __sched_text_start+0x8/0x8 [ 250.639627] schedule+0xc0/0x260 [ 250.642988] schedule_preempt_disabled+0x13/0x20 [ 250.648814] __mutex_lock+0x8bf/0x1410 [ 250.652700] ? genl_rcv_msg+0x10e/0x140 [ 250.656931] ? mutex_lock_io_nested+0x1280/0x1280 [ 250.661791] ? __kasan_check_read+0x11/0x20 [ 250.666379] ? __lock_acquire+0x100f/0x4ef0 [ 250.670695] ? __kasan_check_read+0x11/0x20 [ 250.675270] ? __lock_acquire+0x96a/0x4ef0 [ 250.679512] ? mark_held_locks+0x130/0x130 [ 250.683759] mutex_lock_nested+0x16/0x20 [ 250.688192] ? mutex_lock_nested+0x16/0x20 [ 250.692422] genl_rcv_msg+0x10e/0x140 [ 250.696541] netlink_rcv_skb+0x13f/0x380 [ 250.700607] ? genl_family_rcv_msg+0x1160/0x1160 [ 250.705604] ? netlink_ack+0x980/0x980 [ 250.709491] ? netlink_deliver_tap+0x182/0xad0 [ 250.714077] ? __kasan_check_read+0x11/0x20 [ 250.718786] genl_rcv+0x23/0x40 [ 250.722063] netlink_unicast+0x444/0x640 [ 250.726383] ? netlink_attachskb+0x6f0/0x6f0 [ 250.730785] ? _copy_from_iter_full+0x19e/0x7f0 [ 250.735674] ? __kasan_check_read+0x11/0x20 [ 250.739989] ? __check_object_size+0x203/0x2ea [ 250.744883] netlink_sendmsg+0x75d/0xc40 [ 250.748946] ? netlink_unicast+0x640/0x640 [ 250.753183] ? apparmor_socket_sendmsg+0x1b/0x20 [ 250.758207] ? netlink_unicast+0x640/0x640 [ 250.762439] sock_sendmsg+0xe6/0x110 [ 250.766384] ___sys_sendmsg+0x658/0x980 [ 250.770353] ? copy_msghdr_from_user+0x420/0x420 [ 250.776122] ? lock_downgrade+0x900/0x900 [ 250.780277] ? __kasan_check_read+0x11/0x20 [ 250.784865] ? __fget+0x2b1/0x420 [ 250.788318] ? ksys_dup3+0x2e0/0x2e0 [ 250.792025] ? __fget_light+0x179/0x1f0 [ 250.796237] ? __fdget+0xe/0x10 [ 250.799514] __sys_sendmsg+0xd9/0x180 [ 250.803311] ? __sys_sendmsg_sock+0xb0/0xb0 [ 250.807893] ? __fd_install+0x179/0x4b0 [ 250.811864] ? fd_install+0x47/0x60 [ 250.815716] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 250.821089] __x64_sys_sendmsg+0x73/0xb0 [ 250.825419] do_syscall_64+0xd0/0x5e0 [ 250.829224] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 250.834728] RIP: 0033:0x411231 [ 250.837916] Code: 01 4c 89 54 24 28 e9 6f fa ff ff 49 8b 7c 24 70 8b 35 43 c4 24 00 ff 15 ed 83 24 00 85 c0 0f 85 b3 fe ff ff 49 8b 7c 24 70 be <20> 13 41 00 ff 15 dd 83 24 00 85 c0 0f 85 9b fe ff ff 49 8b 7c 24 [ 250.857223] RSP: 002b:00007fd89bf929c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 250.865188] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000411231 [ 250.872456] RDX: 0000000000000000 RSI: 00007fd89bf92a00 RDI: 0000000000000008 [ 250.880063] RBP: 0000000000000008 R08: 00007fd89bf929d0 R09: 000000000072c040 [ 250.887571] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fd89bf92a40 [ 250.895076] R13: 00000000004cc510 R14: 00000000004d99f0 R15: 00000000ffffffff [ 250.902365] INFO: task syz-executor0:8419 blocked for more than 145 seconds. [ 250.910621] Not tainted 5.4.0-rc6+ #0 [ 250.915126] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 250.923091] syz-executor0 D28992 8419 5958 0x00004004 [ 250.929006] Call Trace: [ 250.931602] __schedule+0x8ca/0x19f0 [ 250.935618] ? __sched_text_start+0x8/0x8 [ 250.939763] schedule+0xc0/0x260 [ 250.943144] schedule_preempt_disabled+0x13/0x20 [ 250.948170] __mutex_lock+0x8bf/0x1410 [ 250.952052] ? genl_rcv_msg+0x10e/0x140 [ 250.956334] ? mutex_lock_io_nested+0x1280/0x1280 [ 250.961175] ? __kasan_check_read+0x11/0x20 [ 250.965838] ? __lock_acquire+0x100f/0x4ef0 [ 250.970186] ? __kasan_check_read+0x11/0x20 [ 250.974832] ? __lock_acquire+0x96a/0x4ef0 [ 250.979072] ? mark_held_locks+0x130/0x130 [ 250.983306] mutex_lock_nested+0x16/0x20 [ 250.987745] ? mutex_lock_nested+0x16/0x20 [ 250.991975] genl_rcv_msg+0x10e/0x140 [ 250.996126] netlink_rcv_skb+0x13f/0x380 [ 251.000199] ? genl_family_rcv_msg+0x1160/0x1160 [ 251.005215] ? netlink_ack+0x980/0x980 [ 251.009107] ? netlink_deliver_tap+0x182/0xad0 [ 251.013684] ? __kasan_check_read+0x11/0x20 [ 251.018346] genl_rcv+0x23/0x40 [ 251.021624] netlink_unicast+0x444/0x640 [ 251.026188] ? netlink_attachskb+0x6f0/0x6f0 [ 251.030699] ? _copy_from_iter_full+0x19e/0x7f0 [ 251.036565] ? __kasan_check_read+0x11/0x20 [ 251.040899] ? __check_object_size+0x203/0x2ea [ 251.045775] netlink_sendmsg+0x75d/0xc40 [ 251.049841] ? netlink_unicast+0x640/0x640 [ 251.054078] ? apparmor_socket_sendmsg+0x1b/0x20 [ 251.059132] ? netlink_unicast+0x640/0x640 [ 251.063368] sock_sendmsg+0xe6/0x110 [ 251.067314] ___sys_sendmsg+0x658/0x980 [ 251.071293] ? copy_msghdr_from_user+0x420/0x420 [ 251.077217] ? lock_downgrade+0x900/0x900 [ 251.081366] ? __kasan_check_read+0x11/0x20 [ 251.085924] ? __fget+0x2b1/0x420 [ 251.089540] ? ksys_dup3+0x2e0/0x2e0 [ 251.093248] ? __fget_light+0x179/0x1f0 [ 251.097519] ? __fdget+0xe/0x10 [ 251.100797] __sys_sendmsg+0xd9/0x180 [ 251.105508] ? __sys_sendmsg_sock+0xb0/0xb0 [ 251.109825] ? __fd_install+0x179/0x4b0 [ 251.113793] ? fd_install+0x47/0x60 [ 251.117860] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 251.123229] __x64_sys_sendmsg+0x73/0xb0 [ 251.127531] do_syscall_64+0xd0/0x5e0 [ 251.131329] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 251.136741] RIP: 0033:0x411231 [ 251.139926] Code: 01 4c 89 54 24 28 e9 6f fa ff ff 49 8b 7c 24 70 8b 35 43 c4 24 00 ff 15 ed 83 24 00 85 c0 0f 85 b3 fe ff ff 49 8b 7c 24 70 be <20> 13 41 00 ff 15 dd 83 24 00 85 c0 0f 85 9b fe ff ff 49 8b 7c 24 [ 251.159324] RSP: 002b:00007fd89bf719c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 251.168118] RAX: ffffffffffffffda RBX: 00007fd89bf71a58 RCX: 0000000000411231 [ 251.175969] RDX: 0000000000000000 RSI: 00007fd89bf71a00 RDI: 000000000000000a [ 251.183251] RBP: 000000000000000a R08: 000000000000000b R09: 0000000000000000 [ 251.191029] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fd89bf71a40 [ 251.198596] R13: 00000000004cc510 R14: 00000000004d99f0 R15: 00000000ffffffff [ 251.206190] INFO: task syz-executor4:8395 blocked for more than 146 seconds. [ 251.213379] Not tainted 5.4.0-rc6+ #0 [ 251.218137] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 251.226432] syz-executor4 D29008 8395 5965 0x00004004 [ 251.232090] Call Trace: [ 251.235111] __schedule+0x8ca/0x19f0 [ 251.238835] ? __sched_text_start+0x8/0x8 [ 251.242984] schedule+0xc0/0x260 [ 251.246692] schedule_preempt_disabled+0x13/0x20 [ 251.251446] __mutex_lock+0x8bf/0x1410 [ 251.255690] ? genl_rcv_msg+0x10e/0x140 [ 251.259668] ? mutex_lock_io_nested+0x1280/0x1280 [ 251.264761] ? __kasan_check_read+0x11/0x20 [ 251.269074] ? __lock_acquire+0x100f/0x4ef0 [ 251.273390] ? _raw_spin_unlock_irq+0x60/0x80 [ 251.278136] ? finish_task_switch+0x14b/0x6b0 [ 251.282623] ? finish_task_switch+0x11d/0x6b0 [ 251.287465] ? mark_held_locks+0x130/0x130 [ 251.291697] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 251.297452] mutex_lock_nested+0x16/0x20 [ 251.301507] ? mutex_lock_nested+0x16/0x20 [ 251.306072] genl_rcv_msg+0x10e/0x140 [ 251.309874] netlink_rcv_skb+0x13f/0x380 [ 251.313925] ? genl_family_rcv_msg+0x1160/0x1160 [ 251.318936] ? netlink_ack+0x980/0x980 [ 251.322830] ? genl_pernet_exit+0x70/0x70 [ 251.327206] genl_rcv+0x23/0x40 [ 251.330475] netlink_unicast+0x444/0x640 [ 251.334738] ? netlink_attachskb+0x6f0/0x6f0 [ 251.339136] ? _copy_from_iter_full+0x19e/0x7f0 [ 251.343798] ? __kasan_check_read+0x11/0x20 [ 251.348395] ? __check_object_size+0x203/0x2ea [ 251.353150] netlink_sendmsg+0x75d/0xc40 [ 251.357438] ? netlink_unicast+0x640/0x640 [ 251.361671] ? apparmor_socket_sendmsg+0x1b/0x20 [ 251.366665] ? netlink_unicast+0x640/0x640 [ 251.370899] sock_sendmsg+0xe6/0x110 [ 251.374854] ___sys_sendmsg+0x658/0x980 [ 251.378846] ? copy_msghdr_from_user+0x420/0x420 [ 251.383591] ? lock_downgrade+0x900/0x900 [ 251.388134] ? __kasan_check_read+0x11/0x20 [ 251.392629] ? __fget+0x2b1/0x420 [ 251.396573] ? ksys_dup3+0x2e0/0x2e0 [ 251.400286] ? __fget_light+0x179/0x1f0 [ 251.404249] ? __fdget+0xe/0x10 [ 251.407759] __sys_sendmsg+0xd9/0x180 [ 251.411574] ? __sys_sendmsg_sock+0xb0/0xb0 [ 251.416308] ? __fd_install+0x179/0x4b0 [ 251.420307] ? fd_install+0x47/0x60 [ 251.424111] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 251.430686] __x64_sys_sendmsg+0x73/0xb0 [ 251.435035] do_syscall_64+0xd0/0x5e0 [ 251.438849] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 251.444118] RIP: 0033:0x411231 [ 251.447639] Code: 01 4c 89 54 24 28 e9 6f fa ff ff 49 8b 7c 24 70 8b 35 43 c4 24 00 ff 15 ed 83 24 00 85 c0 0f 85 b3 fe ff ff 49 8b 7c 24 70 be <20> 13 41 00 ff 15 dd 83 24 00 85 c0 0f 85 9b fe ff ff 49 8b 7c 24 [ 251.466886] RSP: 002b:00007f2bf78779c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 251.474892] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000411231 [ 251.482161] RDX: 0000000000000000 RSI: 00007f2bf7877a00 RDI: 0000000000000004 [ 251.489765] RBP: 0000000000000004 R08: 00007f2bf78779d0 R09: 000000000072bf00 [ 251.497274] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f2bf7877a40 [ 251.504751] R13: 00000000004cc510 R14: 00000000004d99f0 R15: 00000000ffffffff [ 251.512045] [ 251.512045] Showing all locks held in the system: [ 251.518610] 1 lock held by khungtaskd/1045: [ 251.522921] #0: ffffffff883a3d00 (rcu_read_lock){....}, at: debug_show_all_locks+0x5b/0x27a [ 251.531821] 1 lock held by rsyslogd/5751: [ 251.536204] #0: ffff8881c07e5d60 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa3/0xc0 [ 251.544013] 2 locks held by getty/5842: [ 251.548263] #0: ffff8881c621e090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.557497] #1: ffffc90004c892e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1930 [ 251.566792] 2 locks held by getty/5843: [ 251.570755] #0: ffff8881b7f24090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.579270] #1: ffffc90004ca52e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1930 [ 251.588351] 2 locks held by getty/5844: [ 251.592314] #0: ffff8881d917b090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.600813] #1: ffffc90004c9d2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1930 [ 251.609948] 2 locks held by getty/5845: [ 251.613935] #0: ffff8881d93f9090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.622419] #1: ffffc90004c992e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1930 [ 251.631493] 2 locks held by getty/5846: [ 251.635665] #0: ffff8881d8955090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.643899] #1: ffffc90004ca92e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1930 [ 251.653100] 2 locks held by getty/5847: [ 251.657297] #0: ffff8881b7f07090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.665760] #1: ffffc90004c912e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1930 [ 251.674850] 2 locks held by getty/5848: [ 251.678817] #0: ffff8881c3f2c090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.688125] #1: ffffc90004c712e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1930 [ 251.697263] 2 locks held by syz-executor3/8382: [ 251.701919] #0: ffffffff88d558c8 (cb_lock){++++}, at: ctrl_getfamily+0x2b2/0x400 [ 251.709866] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: ctrl_getfamily+0x2c0/0x400 [ 251.717986] 2 locks held by syz-executor3/8401: [ 251.722645] 2 locks held by syz-executor1/8384: [ 251.727554] #0: ffffffff88d558c8 (cb_lock){++++}, at: ctrl_getfamily+0x2b2/0x400 [ 251.735402] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: ctrl_getfamily+0x2c0/0x400 [ 251.743296] 2 locks held by syz-executor1/8402: [ 251.748233] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 251.755488] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 251.763202] 2 locks held by syz-executor1/8417: [ 251.768104] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 251.775334] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 251.783043] 2 locks held by syz-executor1/8418: [ 251.787923] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 251.795067] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 251.802779] 2 locks held by syz-executor0/8390: [ 251.807683] #0: ffffffff88d558c8 (cb_lock){++++}, at: ctrl_getfamily+0x2b2/0x400 [ 251.816302] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: ctrl_getfamily+0x2c0/0x400 [ 251.824212] 2 locks held by syz-executor0/8405: [ 251.829143] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 251.836299] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 251.844011] 2 locks held by syz-executor0/8411: [ 251.848956] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 251.856280] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 251.864023] 2 locks held by syz-executor0/8419: [ 251.869062] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 251.876359] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 251.884086] 2 locks held by syz-executor4/8395: [ 251.889005] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 251.896177] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 251.903903] 2 locks held by syz-executor4/8406: [ 251.908857] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 251.916246] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 251.923971] 2 locks held by syz-executor4/8412: [ 251.928936] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 251.936309] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 251.944030] 2 locks held by syz-executor4/8422: [ 251.949751] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 251.956956] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 251.965337] 2 locks held by syz-executor2/8409: [ 251.970012] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 251.977351] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 251.985300] 2 locks held by syz-executor2/8413: [ 251.989963] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 251.997219] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 252.005379] 2 locks held by syz-executor2/8415: [ 252.010070] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 252.017477] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 252.025488] 2 locks held by syz-executor5/8410: [ 252.030144] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 252.037332] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 252.045255] 2 locks held by syz-executor5/8414: [ 252.049915] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 252.057094] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 252.065189] 2 locks held by syz-executor5/8416: [ 252.069855] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 252.077944] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 252.085928] 2 locks held by syz-executor5/8424: [ 252.090588] #0: ffffffff88d558c8 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 252.097774] #1: ffffffff88d55980 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 252.105740] [ 252.107370] ============================================= [ 252.107370] [ 252.114616] NMI backtrace for cpu 0 [ 252.118235] CPU: 0 PID: 1045 Comm: khungtaskd Not tainted 5.4.0-rc6+ #0 [ 252.125069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 252.134443] Call Trace: [ 252.137124] dump_stack+0x12d/0x187 [ 252.140751] nmi_cpu_backtrace.cold.7+0x4b/0x84 [ 252.145411] ? lapic_can_unplug_cpu.cold.29+0x3f/0x3f [ 252.150590] nmi_trigger_cpumask_backtrace+0x18b/0x1b7 [ 252.155878] arch_trigger_cpumask_backtrace+0x14/0x20 [ 252.161099] watchdog+0x592/0xb70 [ 252.164555] kthread+0x334/0x3f0 [ 252.167909] ? hungtask_pm_notify+0x40/0x40 [ 252.172238] ? kthread_mod_delayed_work+0x190/0x190 [ 252.177280] ret_from_fork+0x3a/0x50 [ 252.181153] Sending NMI from CPU 0 to CPUs 1: [ 252.186345] NMI backtrace for cpu 1 [ 252.186347] CPU: 1 PID: 8401 Comm: syz-executor3 Not tainted 5.4.0-rc6+ #0 [ 252.186349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 252.186350] RIP: 0010:match_held_lock+0x75/0x5b0 [ 252.186353] Code: ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 02 04 00 00 66 41 f7 44 24 22 f0 ff <0f> 84 a9 01 00 00 48 8d 7e 08 48 b8 00 00 00 00 00 fc ff df 48 89 [ 252.186355] RSP: 0018:ffff8881bd90ebd0 EFLAGS: 00000046 [ 252.186357] RAX: 0000000000000003 RBX: ffffed1037be55b2 RCX: ffff8881bdf2ad98 [ 252.186359] RDX: 0000000000000000 RSI: ffff8881d2421208 RDI: ffff8881bdf2ade2 [ 252.186360] RBP: ffff8881bd90ec00 R08: ffffed103b626ae5 R09: ffffed103b626ae5 [ 252.186361] R10: ffffed103b626ae4 R11: ffff8881db135723 R12: ffff8881bdf2adc0 [ 252.186363] R13: ffff8881bdf2a500 R14: 0000000000000001 R15: ffff8881bdf2adc0 [ 252.186364] FS: 00007f8b23fad700(0000) GS:ffff8881db100000(0000) knlGS:0000000000000000 [ 252.186365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 252.186367] CR2: ffffffffff600400 CR3: 00000001c8b33000 CR4: 00000000001406e0 [ 252.186368] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 252.186369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 252.186370] Call Trace: [ 252.186371] lock_is_held_type+0x1b4/0x300 [ 252.186373] lockdep_rht_mutex_is_held.part.3+0x15/0x20 [ 252.186374] lockdep_rht_mutex_is_held+0x4f/0x60 [ 252.186375] tipc_sk_lookup+0x8a4/0x950 [ 252.186376] ? __nla_validate_parse+0xa1/0x1d80 [ 252.186377] ? __tipc_nl_add_sk+0x3e0/0x3e0 [ 252.186378] ? nla_memcpy+0xa0/0xa0 [ 252.186379] tipc_nl_publ_dump+0x1bc/0xcc0 [ 252.186380] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 252.186382] ? lockdep_hardirqs_on+0x42d/0x5d0 [ 252.186383] ? tipc_nl_sk_dump+0x20/0x20 [ 252.186384] ? trace_hardirqs_on_caller+0x28/0x1a0 [ 252.186385] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 252.186386] __tipc_nl_compat_dumpit.isra.11+0x1e7/0x950 [ 252.186387] ? __tipc_add_link_prop.isra.9+0x1c0/0x1c0 [ 252.186388] ? __nla_put+0x20/0x30 [ 252.186389] tipc_nl_compat_sk_dump+0x4ed/0x990 [ 252.186391] ? __tipc_nl_compat_dumpit.isra.11+0x950/0x950 [ 252.186392] ? memset+0x31/0x40 [ 252.186393] ? tipc_nl_sk_dump+0x20/0x20 [ 252.186394] ? tipc_tlv_sprintf+0x2c0/0x2c0 [ 252.186395] ? __nla_validate_parse+0xa1/0x1d80 [ 252.186396] ? __nla_parse+0x22/0x30 [ 252.186397] __tipc_nl_compat_dumpit.isra.11+0x2bf/0x950 [ 252.186398] ? __tipc_add_link_prop.isra.9+0x1c0/0x1c0 [ 252.186399] tipc_nl_compat_dumpit+0x1e6/0x4c0 [ 252.186401] tipc_nl_compat_recv+0x45a/0xa70 [ 252.186402] ? tipc_nl_compat_doit+0x550/0x550 [ 252.186403] ? tipc_dump_start+0x90/0x90 [ 252.186404] ? __tipc_nl_compat_dumpit.isra.11+0x950/0x950 [ 252.186405] ? lock_acquire+0x194/0x410 [ 252.186406] ? genl_rcv_msg+0x10e/0x140 [ 252.186407] genl_family_rcv_msg+0x5d5/0x1160 [ 252.186408] ? find_held_lock+0x36/0x1d0 [ 252.186409] ? genl_unregister_family+0x6e0/0x6e0 [ 252.186410] ? __kasan_check_read+0x11/0x20 [ 252.186412] ? __lock_acquire+0x96a/0x4ef0 [ 252.186413] genl_rcv_msg+0xa7/0x140 [ 252.186414] netlink_rcv_skb+0x13f/0x380 [ 252.186415] ? genl_family_rcv_msg+0x1160/0x1160 [ 252.186416] ? netlink_ack+0x980/0x980 [ 252.186417] ? netlink_deliver_tap+0x182/0xad0 [ 252.186418] ? __kasan_check_read+0x11/0x20 [ 252.186419] genl_rcv+0x23/0x40 [ 252.186420] netlink_unicast+0x444/0x640 [ 252.186421] ? netlink_attachskb+0x6f0/0x6f0 [ 252.186422] ? _copy_from_iter_full+0x19e/0x7f0 [ 252.186423] ? __kasan_check_read+0x11/0x20 [ 252.186425] ? __check_object_size+0x203/0x2ea [ 252.186426] netlink_sendmsg+0x75d/0xc40 [ 252.186427] ? netlink_unicast+0x640/0x640 [ 252.186428] ? apparmor_socket_sendmsg+0x1b/0x20 [ 252.186429] ? netlink_unicast+0x640/0x640 [ 252.186430] sock_sendmsg+0xe6/0x110 [ 252.186431] ___sys_sendmsg+0x658/0x980 [ 252.186432] ? copy_msghdr_from_user+0x420/0x420 [ 252.186433] ? lock_downgrade+0x900/0x900 [ 252.186434] ? __kasan_check_read+0x11/0x20 [ 252.186436] ? __fget+0x2b1/0x420 [ 252.186437] ? ksys_dup3+0x2e0/0x2e0 [ 252.186438] ? __might_fault+0xf1/0x1b0 [ 252.186439] ? __fget_light+0x179/0x1f0 [ 252.186440] ? lock_acquire+0x194/0x410 [ 252.186441] ? __fdget+0xe/0x10 [ 252.186442] __sys_sendmsg+0xd9/0x180 [ 252.186443] ? __sys_sendmsg_sock+0xb0/0xb0 [ 252.186445] ? __kasan_check_read+0x11/0x20 [ 252.186446] ? _copy_to_user+0xcb/0xf0 [ 252.186447] ? put_timespec64+0xa9/0x100 [ 252.186448] ? nsecs_to_jiffies+0x20/0x20 [ 252.186449] ? __blkcg_punt_bio_submit+0x1c0/0x1c0 [ 252.186450] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 252.186451] __x64_sys_sendmsg+0x73/0xb0 [ 252.186452] do_syscall_64+0xd0/0x5e0 [ 252.186454] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 252.186455] RIP: 0033:0x4577a9 [ 252.186457] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 252.186458] RSP: 002b:00007f8b23facc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 252.186461] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004577a9 [ 252.186462] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000004 [ 252.186463] RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 252.186465] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8b23fad6d4 [ 252.186466] R13: 00000000004c4211 R14: 00000000004d70f8 R15: 00000000ffffffff [ 252.188871] Kernel panic - not syncing: hung_task: blocked tasks [ 252.710172] CPU: 0 PID: 1045 Comm: khungtaskd Not tainted 5.4.0-rc6+ #0 [ 252.716914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 252.726258] Call Trace: [ 252.728851] dump_stack+0x12d/0x187 [ 252.732485] panic+0x22a/0x4f5 [ 252.735670] ? add_taint.cold.8+0x11/0x11 [ 252.739808] ? ___preempt_schedule+0x16/0x20 [ 252.744219] watchdog+0x5a3/0xb70 [ 252.747671] kthread+0x334/0x3f0 [ 252.751024] ? hungtask_pm_notify+0x40/0x40 [ 252.755337] ? kthread_mod_delayed_work+0x190/0x190 [ 252.760345] ret_from_fork+0x3a/0x50 [ 252.765982] Kernel Offset: disabled [ 252.769615] Rebooting in 86400 seconds..