INFO: task syz-executor.4:26259 blocked for more than 143 seconds. Not tainted 5.1.0-rc2+ #115 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D27568 26259 11160 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3518 schedule+0x92/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 genl_lock net/netlink/genetlink.c:33 [inline] ctrl_getfamily+0x30d/0x420 net/netlink/genetlink.c:874 genl_family_rcv_msg+0x6ed/0xda0 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x16c net/netlink/genetlink.c:627 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 ___sys_sendmsg+0x806/0x930 net/socket.c:2260 __sys_sendmsg+0x105/0x1d0 net/socket.c:2298 __do_sys_sendmsg net/socket.c:2307 [inline] __se_sys_sendmsg net/socket.c:2305 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2305 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4120e1 Code: 65 00 31 d2 be 53 25 44 00 bf 52 37 44 00 ff 15 a5 75 24 00 b9 e0 96 65 00 31 d2 be d2 31 44 00 bf 52 37 44 00 ff 15 8e 75 24 <00> 48 8b 3d 87 b5 24 00 e8 92 8e ff ff 31 c0 48 83 c4 08 c3 66 66 RSP: 002b:00007fe2ac9159c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000004120e1 RDX: 0000000000000000 RSI: 00007fe2ac915a00 RDI: 0000000000000006 RBP: 0000000000000006 R08: 00007fe2ac9159d0 R09: 000000000073bfa0 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe2ac915a40 R13: 00000000004cde08 R14: 00000000004dc220 R15: 00000000ffffffff INFO: task syz-executor.4:26270 blocked for more than 143 seconds. Not tainted 5.1.0-rc2+ #115 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28944 26270 11160 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3518 schedule+0x92/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 ___sys_sendmsg+0x806/0x930 net/socket.c:2260 __sys_sendmsg+0x105/0x1d0 net/socket.c:2298 __do_sys_sendmsg net/socket.c:2307 [inline] __se_sys_sendmsg net/socket.c:2305 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2305 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4120e1 Code: 65 00 31 d2 be 53 25 44 00 bf 52 37 44 00 ff 15 a5 75 24 00 b9 e0 96 65 00 31 d2 be d2 31 44 00 bf 52 37 44 00 ff 15 8e 75 24 <00> 48 8b 3d 87 b5 24 00 e8 92 8e ff ff 31 c0 48 83 c4 08 c3 66 66 RSP: 002b:00007fe2ac8d39c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000004120e1 RDX: 0000000000000000 RSI: 00007fe2ac8d3a00 RDI: 0000000000000007 RBP: 0000000000000007 R08: 00007fe2ac8d39d0 R09: 000000000073c0e0 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe2ac8d3a40 R13: 00000000004cde08 R14: 00000000004dc220 R15: 00000000ffffffff INFO: task syz-executor.4:26323 blocked for more than 144 seconds. Not tainted 5.1.0-rc2+ #115 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D29176 26323 11160 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3518 schedule+0x92/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 ___sys_sendmsg+0x806/0x930 net/socket.c:2260 __sys_sendmsg+0x105/0x1d0 net/socket.c:2298 __do_sys_sendmsg net/socket.c:2307 [inline] __se_sys_sendmsg net/socket.c:2305 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2305 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4120e1 Code: 65 00 31 d2 be 53 25 44 00 bf 52 37 44 00 ff 15 a5 75 24 00 b9 e0 96 65 00 31 d2 be d2 31 44 00 bf 52 37 44 00 ff 15 8e 75 24 <00> 48 8b 3d 87 b5 24 00 e8 92 8e ff ff 31 c0 48 83 c4 08 c3 66 66 RSP: 002b:00007fe2ac8919c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000004120e1 RDX: 0000000000000000 RSI: 00007fe2ac891a00 RDI: 000000000000000b RBP: 000000000000000b R08: 00007fe2ac8919d0 R09: 000000000073c220 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe2ac891a40 R13: 00000000004cde08 R14: 00000000004dc220 R15: 00000000ffffffff INFO: task syz-executor.1:26283 blocked for more than 144 seconds. Not tainted 5.1.0-rc2+ #115 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D27800 26283 7894 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3518 schedule+0x92/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 ___sys_sendmsg+0x806/0x930 net/socket.c:2260 __sys_sendmsg+0x105/0x1d0 net/socket.c:2298 __do_sys_sendmsg net/socket.c:2307 [inline] __se_sys_sendmsg net/socket.c:2305 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2305 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4120e1 Code: 65 00 31 d2 be 53 25 44 00 bf 52 37 44 00 ff 15 a5 75 24 00 b9 e0 96 65 00 31 d2 be d2 31 44 00 bf 52 37 44 00 ff 15 8e 75 24 <00> 48 8b 3d 87 b5 24 00 e8 92 8e ff ff 31 c0 48 83 c4 08 c3 66 66 RSP: 002b:00007fb2e59939c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000004120e1 RDX: 0000000000000000 RSI: 00007fb2e5993a00 RDI: 0000000000000003 RBP: 0000000000000003 R08: 00007fb2e59939d0 R09: 000000000073bfa0 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fb2e5993a40 R13: 00000000004cde78 R14: 00000000004dc268 R15: 00000000ffffffff INFO: task syz-executor.0:26309 blocked for more than 145 seconds. Not tainted 5.1.0-rc2+ #115 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D29176 26309 11157 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3518 schedule+0x92/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 ___sys_sendmsg+0x806/0x930 net/socket.c:2260 __sys_sendmsg+0x105/0x1d0 net/socket.c:2298 __do_sys_sendmsg net/socket.c:2307 [inline] __se_sys_sendmsg net/socket.c:2305 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2305 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4120e1 Code: 65 00 31 d2 be 53 25 44 00 bf 52 37 44 00 ff 15 a5 75 24 00 b9 e0 96 65 00 31 d2 be d2 31 44 00 bf 52 37 44 00 ff 15 8e 75 24 <00> 48 8b 3d 87 b5 24 00 e8 92 8e ff ff 31 c0 48 83 c4 08 c3 66 66 RSP: 002b:00007fd2929419c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fd292941a58 RCX: 00000000004120e1 RDX: 0000000000000000 RSI: 00007fd292941a00 RDI: 0000000000000006 RBP: 0000000000000006 R08: 0000000000000009 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fd292941a40 R13: 00000000004cdec8 R14: 00000000004dc298 R15: 00000000ffffffff INFO: task syz-executor.0:26328 blocked for more than 145 seconds. Not tainted 5.1.0-rc2+ #115 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D29176 26328 11157 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3518 schedule+0x92/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 ___sys_sendmsg+0x806/0x930 net/socket.c:2260 __sys_sendmsg+0x105/0x1d0 net/socket.c:2298 __do_sys_sendmsg net/socket.c:2307 [inline] __se_sys_sendmsg net/socket.c:2305 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2305 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4120e1 Code: 65 00 31 d2 be 53 25 44 00 bf 52 37 44 00 ff 15 a5 75 24 00 b9 e0 96 65 00 31 d2 be d2 31 44 00 bf 52 37 44 00 ff 15 8e 75 24 <00> 48 8b 3d 87 b5 24 00 e8 92 8e ff ff 31 c0 48 83 c4 08 c3 66 66 RSP: 002b:00007fd2929209c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fd292920a58 RCX: 00000000004120e1 RDX: 0000000000000000 RSI: 00007fd292920a00 RDI: 000000000000000a RBP: 000000000000000a R08: 0000000000000009 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fd292920a40 R13: 00000000004cdec8 R14: 00000000004dc298 R15: 00000000ffffffff INFO: task syz-executor.5:26301 blocked for more than 146 seconds. Not tainted 5.1.0-rc2+ #115 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28688 26301 17109 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3518 schedule+0x92/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 ___sys_sendmsg+0x806/0x930 net/socket.c:2260 __sys_sendmsg+0x105/0x1d0 net/socket.c:2298 __do_sys_sendmsg net/socket.c:2307 [inline] __se_sys_sendmsg net/socket.c:2305 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2305 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4120e1 Code: 65 00 31 d2 be 53 25 44 00 bf 52 37 44 00 ff 15 a5 75 24 00 b9 e0 96 65 00 31 d2 be d2 31 44 00 bf 52 37 44 00 ff 15 8e 75 24 <00> 48 8b 3d 87 b5 24 00 e8 92 8e ff ff 31 c0 48 83 c4 08 c3 66 66 RSP: 002b:00007f2a6f7ed9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f2a6f7eda58 RCX: 00000000004120e1 RDX: 0000000000000000 RSI: 00007f2a6f7eda00 RDI: 0000000000000004 RBP: 0000000000000004 R08: 0000000000000009 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f2a6f7eda40 R13: 00000000004cdec8 R14: 00000000004dc298 R15: 00000000ffffffff INFO: task syz-executor.5:26313 blocked for more than 146 seconds. Not tainted 5.1.0-rc2+ #115 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D29176 26313 17109 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3518 schedule+0x92/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 ___sys_sendmsg+0x806/0x930 net/socket.c:2260 __sys_sendmsg+0x105/0x1d0 net/socket.c:2298 __do_sys_sendmsg net/socket.c:2307 [inline] __se_sys_sendmsg net/socket.c:2305 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2305 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4120e1 Code: 65 00 31 d2 be 53 25 44 00 bf 52 37 44 00 ff 15 a5 75 24 00 b9 e0 96 65 00 31 d2 be d2 31 44 00 bf 52 37 44 00 ff 15 8e 75 24 <00> 48 8b 3d 87 b5 24 00 e8 92 8e ff ff 31 c0 48 83 c4 08 c3 66 66 RSP: 002b:00007f2a6f7cc9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f2a6f7cca58 RCX: 00000000004120e1 RDX: 0000000000000000 RSI: 00007f2a6f7cca00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000009 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f2a6f7cca40 R13: 00000000004cdec8 R14: 00000000004dc298 R15: 00000000ffffffff INFO: task syz-executor.5:26314 blocked for more than 147 seconds. Not tainted 5.1.0-rc2+ #115 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D29176 26314 17109 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3518 schedule+0x92/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 ___sys_sendmsg+0x806/0x930 net/socket.c:2260 __sys_sendmsg+0x105/0x1d0 net/socket.c:2298 __do_sys_sendmsg net/socket.c:2307 [inline] __se_sys_sendmsg net/socket.c:2305 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2305 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4120e1 Code: 00 e9 f3 fe ff ff cc cc cc 48 83 ec 20 48 89 6c 24 18 48 8d 6c 24 18 48 8b 44 24 28 0f b6 48 17 f6 c1 80 74 20 48 8b 00 48 89 <44> 24 08 48 8b 44 24 30 48 89 04 24 e8 9e ad 04 00 48 8b 6c 24 18 RSP: 002b:00007f2a6f7ab9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f2a6f7aba58 RCX: 00000000004120e1 RDX: 0000000000000000 RSI: 00007f2a6f7aba00 RDI: 0000000000000007 RBP: 0000000000000007 R08: 0000000000000009 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f2a6f7aba40 R13: 00000000004cdec8 R14: 00000000004dc298 R15: 00000000ffffffff INFO: task syz-executor.5:26333 blocked for more than 147 seconds. Not tainted 5.1.0-rc2+ #115 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D29176 26333 17109 0x00000004 Call Trace: context_switch kernel/sched/core.c:2877 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3518 schedule+0x92/0x180 kernel/sched/core.c:3562 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3620 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 ___sys_sendmsg+0x806/0x930 net/socket.c:2260 __sys_sendmsg+0x105/0x1d0 net/socket.c:2298 __do_sys_sendmsg net/socket.c:2307 [inline] __se_sys_sendmsg net/socket.c:2305 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2305 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4120e1 Code: 65 00 31 d2 be 53 25 44 00 bf 52 37 44 00 ff 15 a5 75 24 00 b9 e0 96 65 00 31 d2 be d2 31 44 00 bf 52 37 44 00 ff 15 8e 75 24 <00> 48 8b 3d 87 b5 24 00 e8 92 8e ff ff 31 c0 48 83 c4 08 c3 66 66 RSP: 002b:00007f2a6f7489c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f2a6f748a58 RCX: 00000000004120e1 RDX: 0000000000000000 RSI: 00007f2a6f748a00 RDI: 0000000000000008 RBP: 0000000000000008 R08: 0000000000000009 R09: 0000000000000000 R10: 00007f2a6f7499d0 R11: 0000000000000293 R12: 00007f2a6f748a40 R13: 00000000004cdec8 R14: 00000000004dc298 R15: 00000000ffffffff Showing all locks held in the system: 1 lock held by khungtaskd/1042: #0: 0000000038152e7b (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:5061 1 lock held by rsyslogd/7767: #0: 00000000db3e935b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:801 2 locks held by getty/7857: #0: 000000005a8c40bd (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000f64aeabe (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156 2 locks held by getty/7858: #0: 000000005cd9188f (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000068547976 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156 2 locks held by getty/7859: #0: 0000000077c6aff9 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000001cc9c866 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156 2 locks held by getty/7860: #0: 00000000735c2dd7 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000baaf851c (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156 2 locks held by getty/7861: #0: 0000000006253d02 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000cc2709a7 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156 2 locks held by getty/7862: #0: 000000002bd431c0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000730750b3 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156 2 locks held by getty/7863: #0: 0000000073a4cca2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000a1a4afd1 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156 2 locks held by syz-executor.4/26259: #0: 0000000045d38061 (cb_lock){++++}, at: ctrl_getfamily+0x2ff/0x420 net/netlink/genetlink.c:873 #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000f95a76cd (genl_mutex){+.+.}, at: ctrl_getfamily+0x30d/0x420 net/netlink/genetlink.c:874 2 locks held by syz-executor.4/26270: #0: 0000000045d38061 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637 #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 2 locks held by syz-executor.4/26323: #0: 0000000045d38061 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637 #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 3 locks held by syz-executor.2/26254: 2 locks held by syz-executor.1/26283: #0: 0000000045d38061 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637 #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 2 locks held by syz-executor.0/26309: #0: 0000000045d38061 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637 #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 2 locks held by syz-executor.0/26328: #0: 0000000045d38061 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637 #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 2 locks held by syz-executor.5/26301: #0: 0000000045d38061 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637 #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 2 locks held by syz-executor.5/26313: #0: 0000000045d38061 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637 #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 2 locks held by syz-executor.5/26314: #0: 0000000045d38061 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637 #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 2 locks held by syz-executor.5/26333: #0: 0000000045d38061 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637 #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000f95a76cd (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x16c net/netlink/genetlink.c:625 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1042 Comm: khungtaskd Not tainted 5.1.0-rc2+ #115 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1be/0x236 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline] watchdog+0x9b7/0xec0 kernel/hung_task.c:288 kthread+0x357/0x430 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 26254 Comm: syz-executor.2 Not tainted 5.1.0-rc2+ #115 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:767 [inline] RIP: 0010:lock_release+0x49c/0xa00 kernel/locking/lockdep.c:4233 Code: 03 38 d0 7c 08 84 d2 0f 85 a5 03 00 00 48 c7 c0 f0 96 92 88 48 ba 00 00 00 00 00 fc ff df 41 c7 84 24 7c 08 00 00 00 00 00 00 <48> c1 e8 03 80 3c 10 00 0f 85 28 03 00 00 48 83 3d 7e 1f 3b 07 00 RSP: 0018:ffff88805d14ec78 EFLAGS: 00000046 RAX: ffffffff889296f0 RBX: 1ffff1100ba29d95 RCX: 1ffff1100baa2d7e RDX: dffffc0000000000 RSI: 1ffff1100baa2d8a RDI: ffff88805d516bfc RBP: ffff88805d14ed30 R08: ffff88805d516380 R09: 0000000000000003 R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: ffff88805d516380 R13: ffffffff86d5ae4c R14: ffffffff8a5cc9e0 R15: ffff88805d14ed08 FS: 00007f9d2eda6700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 0000000088f41000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_lock_release include/linux/rcupdate.h:215 [inline] rcu_read_unlock include/linux/rcupdate.h:649 [inline] net_generic include/net/netns/generic.h:47 [inline] tipc_sk_lookup+0x1e3/0xbd0 net/tipc/socket.c:2804 tipc_nl_publ_dump+0x1fb/0xd70 net/tipc/socket.c:3614 __tipc_nl_compat_dumpit.isra.0+0x220/0x930 net/tipc/netlink_compat.c:206 tipc_nl_compat_publ_dump net/tipc/netlink_compat.c:977 [inline] tipc_nl_compat_sk_dump+0x54a/0x970 net/tipc/netlink_compat.c:1028 __tipc_nl_compat_dumpit.isra.0+0x32c/0x930 net/tipc/netlink_compat.c:215 tipc_nl_compat_dumpit+0x1f4/0x440 net/tipc/netlink_compat.c:280 tipc_nl_compat_handle net/tipc/netlink_compat.c:1227 [inline] tipc_nl_compat_recv+0x34f/0xb30 net/tipc/netlink_compat.c:1265 genl_family_rcv_msg+0x6ed/0xda0 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x16c net/netlink/genetlink.c:627 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 ___sys_sendmsg+0x806/0x930 net/socket.c:2260 __sys_sendmsg+0x105/0x1d0 net/socket.c:2298 __do_sys_sendmsg net/socket.c:2307 [inline] __se_sys_sendmsg net/socket.c:2305 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2305 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458209 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9d2eda5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458209 RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000007 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9d2eda66d4 R13: 00000000004cc078 R14: 00000000004d9820 R15: 00000000ffffffff