NOHZ: local_softirq_pending 08 INFO: task syz-executor.4:14329 blocked for more than 140 seconds. Not tainted 4.19.111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D26880 14329 8389 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 netlink_rcv_skb+0x160/0x410 net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d7/0x6a0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x80b/0xcd0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0xec/0x1b0 net/socket.c:2153 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x416501 Code: c0 e9 29 fd ff ff 31 ff e8 6c 04 01 00 85 c0 0f 85 1a fd ff ff 31 ff e8 7d f2 01 00 85 c0 0f 85 0b fd ff ff 31 ff e8 3e 09 00 <00> 85 c0 0f 85 fc fc ff ff 31 ff e8 bf 84 00 00 85 c0 0f 85 ed fc RSP: 002b:00007fbed5b409c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fbed5b40a58 RCX: 0000000000416501 RDX: 0000000000000000 RSI: 00007fbed5b40a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fbed5b40a40 R13: 0000000000000bc1 R14: 00000000004d80f0 R15: 000000000076bf0c INFO: task syz-executor.4:14332 blocked for more than 140 seconds. Not tainted 4.19.111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28896 14332 8389 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 netlink_rcv_skb+0x160/0x410 net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d7/0x6a0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x80b/0xcd0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0xec/0x1b0 net/socket.c:2153 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c849 Code: Bad RIP value. RSP: 002b:00007fbed5b1fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fbed5b206d4 RCX: 000000000045c849 RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000004 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009d0 R14: 00000000004cc7f2 R15: 000000000076bfac INFO: task syz-executor.3:14334 blocked for more than 140 seconds. Not tainted 4.19.111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D28896 14334 8388 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 netlink_rcv_skb+0x160/0x410 net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d7/0x6a0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x80b/0xcd0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0xec/0x1b0 net/socket.c:2153 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x416501 Code: c0 e9 29 fd ff ff 31 ff e8 6c 04 01 00 85 c0 0f 85 1a fd ff ff 31 ff e8 7d f2 01 00 85 c0 0f 85 0b fd ff ff 31 ff e8 3e 09 00 <00> 85 c0 0f 85 fc fc ff ff 31 ff e8 bf 84 00 00 85 c0 0f 85 ed fc RSP: 002b:00007f9eb216c9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9eb216ca58 RCX: 0000000000416501 RDX: 0000000000000000 RSI: 00007f9eb216ca00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f9eb216ca40 R13: 0000000000000bc1 R14: 00000000004d80f0 R15: 000000000076bf0c INFO: task syz-executor.3:14341 blocked for more than 140 seconds. Not tainted 4.19.111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D28896 14341 8388 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 netlink_rcv_skb+0x160/0x410 net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d7/0x6a0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x80b/0xcd0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0xec/0x1b0 net/socket.c:2153 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x416501 Code: c0 e9 29 fd ff ff 31 ff e8 6c 04 01 00 85 c0 0f 85 1a fd ff ff 31 ff e8 7d f2 01 00 85 c0 0f 85 0b fd ff ff 31 ff e8 3e 09 00 <00> 85 c0 0f 85 fc fc ff ff 31 ff e8 bf 84 00 00 85 c0 0f 85 ed fc RSP: 002b:00007f9eb214b9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9eb214ba58 RCX: 0000000000416501 RDX: 0000000000000000 RSI: 00007f9eb214ba00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f9eb214ba40 R13: 0000000000000bc1 R14: 00000000004d80f0 R15: 000000000076bfac INFO: task syz-executor.0:14338 blocked for more than 140 seconds. Not tainted 4.19.111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28896 14338 8392 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 netlink_rcv_skb+0x160/0x410 net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d7/0x6a0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x80b/0xcd0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0xec/0x1b0 net/socket.c:2153 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x416501 Code: c0 e9 29 fd ff ff 31 ff e8 6c 04 01 00 85 c0 0f 85 1a fd ff ff 31 ff e8 7d f2 01 00 85 c0 0f 85 0b fd ff ff 31 ff e8 3e 09 00 <00> 85 c0 0f 85 fc fc ff ff 31 ff e8 bf 84 00 00 85 c0 0f 85 ed fc RSP: 002b:00007f5f828b59c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5f828b5a58 RCX: 0000000000416501 RDX: 0000000000000000 RSI: 00007f5f828b5a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f5f828b5a40 R13: 0000000000000bc1 R14: 00000000004d80f0 R15: 000000000076bf0c INFO: task syz-executor.0:14343 blocked for more than 140 seconds. Not tainted 4.19.111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28896 14343 8392 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 netlink_rcv_skb+0x160/0x410 net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d7/0x6a0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x80b/0xcd0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0xec/0x1b0 net/socket.c:2153 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x416501 Code: c0 e9 29 fd ff ff 31 ff e8 6c 04 01 00 85 c0 0f 85 1a fd ff ff 31 ff e8 7d f2 01 00 85 c0 0f 85 0b fd ff ff 31 ff e8 3e 09 00 <00> 85 c0 0f 85 fc fc ff ff 31 ff e8 bf 84 00 00 85 c0 0f 85 ed fc RSP: 002b:00007f5f828949c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5f82894a58 RCX: 0000000000416501 RDX: 0000000000000000 RSI: 00007f5f82894a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f5f82894a40 R13: 0000000000000bc1 R14: 00000000004d80f0 R15: 000000000076bfac INFO: task syz-executor.2:14339 blocked for more than 140 seconds. Not tainted 4.19.111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28896 14339 8385 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 netlink_rcv_skb+0x160/0x410 net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d7/0x6a0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x80b/0xcd0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0xec/0x1b0 net/socket.c:2153 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x416501 Code: c0 e9 29 fd ff ff 31 ff e8 6c 04 01 00 85 c0 0f 85 1a fd ff ff 31 ff e8 7d f2 01 00 85 c0 0f 85 0b fd ff ff 31 ff e8 3e 09 00 <00> 85 c0 0f 85 fc fc ff ff 31 ff e8 bf 84 00 00 85 c0 0f 85 ed fc RSP: 002b:00007f217e3559c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f217e355a58 RCX: 0000000000416501 RDX: 0000000000000000 RSI: 00007f217e355a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f217e355a40 R13: 0000000000000bc1 R14: 00000000004d80f0 R15: 000000000076bf0c INFO: task syz-executor.2:14344 blocked for more than 140 seconds. Not tainted 4.19.111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28896 14344 8385 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 netlink_rcv_skb+0x160/0x410 net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d7/0x6a0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x80b/0xcd0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0xec/0x1b0 net/socket.c:2153 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x416501 Code: c0 e9 29 fd ff ff 31 ff e8 6c 04 01 00 85 c0 0f 85 1a fd ff ff 31 ff e8 7d f2 01 00 85 c0 0f 85 0b fd ff ff 31 ff e8 3e 09 00 <00> 85 c0 0f 85 fc fc ff ff 31 ff e8 bf 84 00 00 85 c0 0f 85 ed fc RSP: 002b:00007f217e3349c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f217e334a58 RCX: 0000000000416501 RDX: 0000000000000000 RSI: 00007f217e334a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f217e334a40 R13: 0000000000000bc1 R14: 00000000004d80f0 R15: 000000000076bfac INFO: task syz-executor.1:14342 blocked for more than 140 seconds. Not tainted 4.19.111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D28448 14342 8394 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 netlink_rcv_skb+0x160/0x410 net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d7/0x6a0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x80b/0xcd0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0xec/0x1b0 net/socket.c:2153 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x416501 Code: c0 e9 29 fd ff ff 31 ff e8 6c 04 01 00 85 c0 0f 85 1a fd ff ff 31 ff e8 7d f2 01 00 85 c0 0f 85 0b fd ff ff 31 ff e8 3e 09 00 <00> 85 c0 0f 85 fc fc ff ff 31 ff e8 bf 84 00 00 85 c0 0f 85 ed fc RSP: 002b:00007f4d6f9ae9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f4d6f9aea58 RCX: 0000000000416501 RDX: 0000000000000000 RSI: 00007f4d6f9aea00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f4d6f9aea40 R13: 0000000000000bc1 R14: 00000000004d80f0 R15: 000000000076bf0c INFO: task syz-executor.1:14345 blocked for more than 140 seconds. Not tainted 4.19.111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D28896 14345 8394 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3617 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 netlink_rcv_skb+0x160/0x410 net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d7/0x6a0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x80b/0xcd0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0xec/0x1b0 net/socket.c:2153 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x416501 Code: c0 e9 29 fd ff ff 31 ff e8 6c 04 01 00 85 c0 0f 85 1a fd ff ff 31 ff e8 7d f2 01 00 85 c0 0f 85 0b fd ff ff 31 ff e8 3e 09 00 <00> 85 c0 0f 85 fc fc ff ff 31 ff e8 bf 84 00 00 85 c0 0f 85 ed fc RSP: 002b:00007f4d6f98d9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f4d6f98da58 RCX: 0000000000416501 RDX: 0000000000000000 RSI: 00007f4d6f98da00 RDI: 0000000000000003 RBP: 0000000000000003 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f4d6f98da40 R13: 0000000000000bc1 R14: 00000000004d80f0 R15: 000000000076bfac Showing all locks held in the system: 1 lock held by khungtaskd/1082: #0: 000000004fe1e038 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4436 1 lock held by rsyslogd/8217: #0: 0000000031e84ded (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xe3/0x100 fs/file.c:767 2 locks held by getty/8339: #0: 0000000058dd84af (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000009a2c40c1 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by getty/8340: #0: 00000000345533d2 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000008a742c9e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by getty/8341: #0: 000000001469974b (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000000e91a108 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by getty/8342: #0: 000000008f0794dc (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000f5503946 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by getty/8343: #0: 00000000c1525c77 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000d8c6f8a7 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by getty/8344: #0: 00000000646fbad3 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000002ec789a2 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by getty/8345: #0: 00000000ebe2f832 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 0000000099bebc50 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1a50 drivers/tty/n_tty.c:2154 2 locks held by syz-executor.5/14330: 2 locks held by syz-executor.4/14329: #0: 00000000dbd25eb9 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 2 locks held by syz-executor.4/14332: #0: 00000000dbd25eb9 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 2 locks held by syz-executor.3/14334: #0: 00000000dbd25eb9 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 2 locks held by syz-executor.3/14341: #0: 00000000dbd25eb9 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 2 locks held by syz-executor.0/14338: #0: 00000000dbd25eb9 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 2 locks held by syz-executor.0/14343: #0: 00000000dbd25eb9 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 2 locks held by syz-executor.2/14339: #0: 00000000dbd25eb9 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 2 locks held by syz-executor.2/14344: #0: 00000000dbd25eb9 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 2 locks held by syz-executor.1/14342: #0: 00000000dbd25eb9 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 2 locks held by syz-executor.1/14345: #0: 00000000dbd25eb9 (cb_lock){++++}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:637 #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: 00000000542ff8f8 (genl_mutex){+.+.}, at: genl_rcv_msg+0x12f/0x160 net/netlink/genetlink.c:625 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1082 Comm: khungtaskd Not tainted 4.19.111-syzkaller #0 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+0x188/0x20d lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1eb lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x962/0xe40 kernel/hung_task.c:287 kthread+0x34a/0x420 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 14330 Comm: syz-executor.5 Not tainted 4.19.111-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:separate_irq_context kernel/locking/lockdep.c:3054 [inline] RIP: 0010:__lock_acquire+0x7f8/0x49c0 kernel/locking/lockdep.c:3402 Code: 48 8b b4 24 88 00 00 00 48 8d 04 80 4c 8d 6c c6 d8 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 21 48 89 fa 48 c1 ea 03 0f b6 04 02 <48> 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 d9 2e 00 00 49 8d 7a 21 RSP: 0018:ffff88808075eba0 EFLAGS: 00000806 RAX: 0000000000000000 RBX: 000000000000002d RCX: 1ffff11014fcb5d6 RDX: 1ffff11014fcb5d1 RSI: ffff8880a7e5ae40 RDI: ffff8880a7e5ae89 RBP: ffff88808075ed70 R08: 0000000000000000 R09: 0000000000000002 R10: ffff8880a7e5ae90 R11: 000000000000002d R12: 088000d92f67e7c1 R13: ffff8880a7e5ae68 R14: ffff8880a7e5a5c0 R15: 0000000000000000 FS: 00007fa033caa700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 0000000092f70000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x170/0x400 kernel/locking/lockdep.c:3903 rcu_lock_acquire include/linux/rcupdate.h:242 [inline] rcu_read_lock include/linux/rcupdate.h:627 [inline] net_generic include/net/netns/generic.h:44 [inline] tipc_sk_lookup+0xc7/0xb20 net/tipc/socket.c:2723 tipc_nl_publ_dump+0x1d4/0xc90 net/tipc/socket.c:3531 __tipc_nl_compat_dumpit.isra.0+0x1f2/0x8c0 net/tipc/netlink_compat.c:207 tipc_nl_compat_publ_dump net/tipc/netlink_compat.c:1008 [inline] tipc_nl_compat_sk_dump+0x506/0x8a0 net/tipc/netlink_compat.c:1059 __tipc_nl_compat_dumpit.isra.0+0x2e8/0x8c0 net/tipc/netlink_compat.c:216 tipc_nl_compat_dumpit+0x243/0x500 net/tipc/netlink_compat.c:288 tipc_nl_compat_handle net/tipc/netlink_compat.c:1258 [inline] tipc_nl_compat_recv+0x57c/0xa70 net/tipc/netlink_compat.c:1296 genl_family_rcv_msg+0x627/0xc10 net/netlink/genetlink.c:602 genl_rcv_msg+0xbf/0x160 net/netlink/genetlink.c:627 netlink_rcv_skb+0x160/0x410 net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d7/0x6a0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x80b/0xcd0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0xec/0x1b0 net/socket.c:2153 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c849 Code: ad b6 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 b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa033ca9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fa033caa6d4 RCX: 000000000045c849 RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000004 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009d0 R14: 00000000004cc7f2 R15: 000000000076bfac