INFO: task kworker/u4:0:8 blocked for more than 143 seconds. Not tainted 5.10.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:0 state:D stack:23552 pid: 8 ppid: 2 flags:0x00004000 Workqueue: cfg80211 cfg80211_dfs_channels_update_work Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x951/0x2290 kernel/sched/core.c:5078 schedule+0xcf/0x270 kernel/sched/core.c:5157 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5216 __mutex_lock_common kernel/locking/mutex.c:1033 [inline] __mutex_lock+0x9e9/0x1240 kernel/locking/mutex.c:1103 cfg80211_dfs_channels_update_work+0x91/0x5f0 net/wireless/mlme.c:842 process_one_work+0x868/0x15c0 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 INFO: task kworker/1:8:10608 blocked for more than 143 seconds. Not tainted 5.10.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:8 state:D stack:26720 pid:10608 ppid: 2 flags:0x00004000 Workqueue: events linkwatch_event Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x951/0x2290 kernel/sched/core.c:5078 schedule+0xcf/0x270 kernel/sched/core.c:5157 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5216 __mutex_lock_common kernel/locking/mutex.c:1033 [inline] __mutex_lock+0x9e9/0x1240 kernel/locking/mutex.c:1103 linkwatch_event+0xb/0x60 net/core/link_watch.c:250 process_one_work+0x868/0x15c0 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 INFO: task kworker/1:6:2230 blocked for more than 143 seconds. Not tainted 5.10.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:6 state:D stack:26088 pid: 2230 ppid: 2 flags:0x00004000 Workqueue: events smc_ib_port_event_work Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x951/0x2290 kernel/sched/core.c:5078 schedule+0xcf/0x270 kernel/sched/core.c:5157 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5216 __mutex_lock_common kernel/locking/mutex.c:1033 [inline] __mutex_lock+0x9e9/0x1240 kernel/locking/mutex.c:1103 rxe_query_port+0x129/0x2d0 drivers/infiniband/sw/rxe/rxe_verbs.c:40 __ib_query_port drivers/infiniband/core/device.c:2017 [inline] ib_query_port+0x4d9/0xa40 drivers/infiniband/core/device.c:2052 smc_ib_remember_port_attr net/smc/smc_ib.c:226 [inline] smc_ib_port_event_work+0x146/0x400 net/smc/smc_ib.c:250 process_one_work+0x868/0x15c0 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 INFO: task kworker/0:41:20978 blocked for more than 144 seconds. Not tainted 5.10.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:41 state:D stack:24576 pid:20978 ppid: 2 flags:0x00004000 Workqueue: infiniband ib_cache_event_task Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x951/0x2290 kernel/sched/core.c:5078 schedule+0xcf/0x270 kernel/sched/core.c:5157 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5216 __mutex_lock_common kernel/locking/mutex.c:1033 [inline] __mutex_lock+0x9e9/0x1240 kernel/locking/mutex.c:1103 rxe_query_port+0x129/0x2d0 drivers/infiniband/sw/rxe/rxe_verbs.c:40 __ib_query_port drivers/infiniband/core/device.c:2017 [inline] ib_query_port+0x4d9/0xa40 drivers/infiniband/core/device.c:2052 ib_cache_update+0x170/0x920 drivers/infiniband/core/cache.c:1490 ib_cache_event_task+0xad/0x160 drivers/infiniband/core/cache.c:1561 process_one_work+0x868/0x15c0 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 INFO: task kworker/1:0:22994 blocked for more than 144 seconds. Not tainted 5.10.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:27408 pid:22994 ppid: 2 flags:0x00004000 Workqueue: events switchdev_deferred_process_work Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x951/0x2290 kernel/sched/core.c:5078 schedule+0xcf/0x270 kernel/sched/core.c:5157 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5216 __mutex_lock_common kernel/locking/mutex.c:1033 [inline] __mutex_lock+0x9e9/0x1240 kernel/locking/mutex.c:1103 switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:74 process_one_work+0x868/0x15c0 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 INFO: task kworker/u4:10:23214 blocked for more than 144 seconds. Not tainted 5.10.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:10 state:D stack:24912 pid:23214 ppid: 2 flags:0x00004000 Workqueue: netns cleanup_net Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x951/0x2290 kernel/sched/core.c:5078 schedule+0xcf/0x270 kernel/sched/core.c:5157 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5216 __mutex_lock_common kernel/locking/mutex.c:1033 [inline] __mutex_lock+0x9e9/0x1240 kernel/locking/mutex.c:1103 mpls_net_exit+0x77/0x320 net/mpls/af_mpls.c:2691 ops_exit_list+0xb0/0x160 net/core/net_namespace.c:187 cleanup_net+0x4ea/0xb10 net/core/net_namespace.c:604 process_one_work+0x868/0x15c0 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 INFO: task syz-executor.0:15389 blocked for more than 145 seconds. Not tainted 5.10.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:24288 pid:15389 ppid: 8477 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x951/0x2290 kernel/sched/core.c:5078 schedule+0xcf/0x270 kernel/sched/core.c:5157 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5216 __mutex_lock_common kernel/locking/mutex.c:1033 [inline] __mutex_lock+0x9e9/0x1240 kernel/locking/mutex.c:1103 rtnl_lock net/core/rtnetlink.c:72 [inline] rtnetlink_rcv_msg+0x43e/0xb40 net/core/rtnetlink.c:5561 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x907/0xe10 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd3/0x130 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2336 ___sys_sendmsg+0xf3/0x170 net/socket.c:2390 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2423 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e299 RSP: 002b:00007f8bba985c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e299 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c R13: 00007fff88ba5f8f R14: 00007f8bba9869c0 R15: 000000000119bf8c INFO: task syz-executor.0:15393 blocked for more than 146 seconds. Not tainted 5.10.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:26752 pid:15393 ppid: 8477 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x951/0x2290 kernel/sched/core.c:5078 schedule+0xcf/0x270 kernel/sched/core.c:5157 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5216 __mutex_lock_common kernel/locking/mutex.c:1033 [inline] __mutex_lock+0x9e9/0x1240 kernel/locking/mutex.c:1103 rtnl_lock net/core/rtnetlink.c:72 [inline] rtnetlink_rcv_msg+0x43e/0xb40 net/core/rtnetlink.c:5561 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x907/0xe10 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd3/0x130 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2336 ___sys_sendmsg+0xf3/0x170 net/socket.c:2390 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2423 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e299 RSP: 002b:00007f8bba964c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e299 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 000000000119c068 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119c034 R13: 00007fff88ba5f8f R14: 00007f8bba9659c0 R15: 000000000119c034 INFO: task syz-executor.0:15397 blocked for more than 146 seconds. Not tainted 5.10.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:27448 pid:15397 ppid: 8477 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x951/0x2290 kernel/sched/core.c:5078 schedule+0xcf/0x270 kernel/sched/core.c:5157 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5216 __mutex_lock_common kernel/locking/mutex.c:1033 [inline] __mutex_lock+0x9e9/0x1240 kernel/locking/mutex.c:1103 rtnl_lock net/core/rtnetlink.c:72 [inline] rtnetlink_rcv_msg+0x43e/0xb40 net/core/rtnetlink.c:5561 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x907/0xe10 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd3/0x130 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2336 ___sys_sendmsg+0xf3/0x170 net/socket.c:2390 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2423 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e299 RSP: 002b:00007f8bba943c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e299 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000008 RBP: 000000000119c110 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119c0dc R13: 00007fff88ba5f8f R14: 00007f8bba9449c0 R15: 000000000119c0dc INFO: task syz-executor.0:15402 blocked for more than 147 seconds. Not tainted 5.10.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:24680 pid:15402 ppid: 8477 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x951/0x2290 kernel/sched/core.c:5078 schedule+0xcf/0x270 kernel/sched/core.c:5157 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5216 __mutex_lock_common kernel/locking/mutex.c:1033 [inline] __mutex_lock+0x9e9/0x1240 kernel/locking/mutex.c:1103 __netlink_dump_start+0x16a/0x920 net/netlink/af_netlink.c:2337 netlink_dump_start include/linux/netlink.h:256 [inline] rtnetlink_rcv_msg+0x791/0xb40 net/core/rtnetlink.c:5527 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x907/0xe10 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd3/0x130 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2336 ___sys_sendmsg+0xf3/0x170 net/socket.c:2390 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2423 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e299 RSP: 002b:00007f8bba922c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e299 RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 000000000119c1b8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119c184 R13: 00007fff88ba5f8f R14: 00007f8bba9239c0 R15: 000000000119c184 Showing all locks held in the system: 3 locks held by kworker/u4:0/8: #0: ffff888017718938 ((wq_completion)cfg80211){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888017718938 ((wq_completion)cfg80211){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888017718938 ((wq_completion)cfg80211){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888017718938 ((wq_completion)cfg80211){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff888017718938 ((wq_completion)cfg80211){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff888017718938 ((wq_completion)cfg80211){+.+.}-{0:0}, at: process_one_work+0x750/0x15c0 kernel/workqueue.c:2246 #1: ffffc90000cd7da8 ((work_completion)(&(&rdev->dfs_update_channels_wk)->work)){+.+.}-{0:0}, at: process_one_work+0x783/0x15c0 kernel/workqueue.c:2250 #2: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: cfg80211_dfs_channels_update_work+0x91/0x5f0 net/wireless/mlme.c:842 1 lock held by khungtaskd/1653: #0: ffffffff8ba40120 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x28c kernel/locking/lockdep.c:6254 1 lock held by in:imklog/8167: #0: ffff888020d4ed70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:932 3 locks held by kworker/1:8/10608: #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x750/0x15c0 kernel/workqueue.c:2246 #1: ffffc9000295fda8 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x783/0x15c0 kernel/workqueue.c:2250 #2: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xb/0x60 net/core/link_watch.c:250 3 locks held by kworker/0:16/13644: #0: ffff888022031138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888022031138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888022031138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888022031138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff888022031138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff888022031138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x750/0x15c0 kernel/workqueue.c:2246 #1: ffffc90002e5fda8 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x783/0x15c0 kernel/workqueue.c:2250 #2: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4569 3 locks held by kworker/1:6/2230: #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x750/0x15c0 kernel/workqueue.c:2246 #1: ffffc90016857da8 ((work_completion)(&smcibdev->port_event_work)){+.+.}-{0:0}, at: process_one_work+0x783/0x15c0 kernel/workqueue.c:2250 #2: ffff8880657c11a8 (&rxe->usdev_lock){+.+.}-{3:3}, at: rxe_query_port+0x129/0x2d0 drivers/infiniband/sw/rxe/rxe_verbs.c:40 3 locks held by kworker/0:41/20978: #0: ffff888141a82938 ((wq_completion)infiniband){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888141a82938 ((wq_completion)infiniband){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888141a82938 ((wq_completion)infiniband){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888141a82938 ((wq_completion)infiniband){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff888141a82938 ((wq_completion)infiniband){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff888141a82938 ((wq_completion)infiniband){+.+.}-{0:0}, at: process_one_work+0x750/0x15c0 kernel/workqueue.c:2246 #1: ffffc9001744fda8 ((work_completion)(&work->work)#2){+.+.}-{0:0}, at: process_one_work+0x783/0x15c0 kernel/workqueue.c:2250 #2: ffff8880657c11a8 (&rxe->usdev_lock){+.+.}-{3:3}, at: rxe_query_port+0x129/0x2d0 drivers/infiniband/sw/rxe/rxe_verbs.c:40 2 locks held by kworker/0:43/20980: 3 locks held by kworker/1:0/22994: #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff888011062d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x750/0x15c0 kernel/workqueue.c:2246 #1: ffffc90002097da8 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x783/0x15c0 kernel/workqueue.c:2250 #2: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:74 4 locks held by kworker/u4:10/23214: #0: ffff888140ba3138 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888140ba3138 ((wq_completion)netns){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888140ba3138 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888140ba3138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff888140ba3138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff888140ba3138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x750/0x15c0 kernel/workqueue.c:2246 #1: ffffc90002e6fda8 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x783/0x15c0 kernel/workqueue.c:2250 #2: ffffffff8d8e0f90 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9b/0xb10 net/core/net_namespace.c:566 #3: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: mpls_net_exit+0x77/0x320 net/mpls/af_mpls.c:2691 1 lock held by syz-executor.0/15389: #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x43e/0xb40 net/core/rtnetlink.c:5561 1 lock held by syz-executor.0/15393: #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x43e/0xb40 net/core/rtnetlink.c:5561 1 lock held by syz-executor.0/15397: #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x43e/0xb40 net/core/rtnetlink.c:5561 1 lock held by syz-executor.0/15402: #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: __netlink_dump_start+0x16a/0x920 net/netlink/af_netlink.c:2337 2 locks held by syz-executor.5/15396: #0: ffffffff8d9d3a70 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:810 #1: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0x34f/0x680 net/wireless/nl80211.c:14659 6 locks held by syz-executor.5/15401: #0: ffffffff8d8e0f90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x352/0x7b0 net/core/net_namespace.c:479 #1: ffffffff8d549cd0 (devices_rwsem){++++}-{3:3}, at: rdma_dev_init_net+0x2bc/0x4d0 drivers/infiniband/core/device.c:1127 #2: ffffffff8d549a50 (rdma_nets_rwsem){++++}-{3:3}, at: rdma_dev_init_net+0x32f/0x4d0 drivers/infiniband/core/device.c:1132 #3: ffff8880657c0f70 (&device->compat_devs_mutex){+.+.}-{3:3}, at: add_one_compat_dev+0x10a/0x820 drivers/infiniband/core/device.c:891 #4: ffff8880657c11a8 (&rxe->usdev_lock){+.+.}-{3:3}, at: rxe_query_port+0x129/0x2d0 drivers/infiniband/sw/rxe/rxe_verbs.c:40 #5: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: ib_get_eth_speed+0xeb/0x5c0 drivers/infiniband/core/verbs.c:1811 2 locks held by syz-executor.5/15429: #0: ffffffff8d8e0f90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x352/0x7b0 net/core/net_namespace.c:479 #1: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:799 [inline] #1: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x111/0x1d0 net/smc/smc_pnet.c:868 1 lock held by syz-executor.4/15413: #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x43e/0xb40 net/core/rtnetlink.c:5561 2 locks held by syz-executor.4/15418: #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x43e/0xb40 net/core/rtnetlink.c:5561 #1: ffffffff8ba4d668 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline] #1: ffffffff8ba4d668 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x51f/0x650 kernel/rcu/tree_exp.h:836 1 lock held by syz-executor.2/15425: #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x271/0xc80 net/core/dev_ioctl.c:535 1 lock held by syz-executor.3/15440: #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x43e/0xb40 net/core/rtnetlink.c:5561 1 lock held by syz-executor.3/15442: #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x43e/0xb40 net/core/rtnetlink.c:5561 2 locks held by syz-executor.3/15444: #0: ffffffff8d8e0f90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x352/0x7b0 net/core/net_namespace.c:479 #1: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:799 [inline] #1: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x111/0x1d0 net/smc/smc_pnet.c:868 1 lock held by syz-executor.3/15445: #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x43e/0xb40 net/core/rtnetlink.c:5561 2 locks held by syz-executor.3/15446: #0: ffffffff8d8e0f90 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x352/0x7b0 net/core/net_namespace.c:479 #1: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:799 [inline] #1: ffffffff8d9019c8 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x111/0x1d0 net/smc/smc_pnet.c:868 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1653 Comm: khungtaskd Not tainted 5.10.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:120 nmi_cpu_backtrace.cold+0x5c/0x7b lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline] watchdog+0xe36/0x11f0 kernel/hung_task.c:294 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4185 Comm: kworker/u4:5 Not tainted 5.10.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: phy13 ieee80211_iface_work RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:319 [inline] RIP: 0010:rcu_is_watching+0x9/0x100 kernel/rcu/tree.c:1113 Code: 48 83 fe 04 74 ef b8 01 00 00 00 c3 e8 00 4b ff ff b8 01 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 65 ff 05 17 1a a0 7e 72 57 c3 07 48 c7 c3 80 5a 03 00 83 f8 07 89 c5 0f 87 bd 00 00 RSP: 0018:ffffc900164af218 EFLAGS: 00000282 RAX: 0000000000000001 RBX: 1ffff92002c95e4a RCX: ffffffff815b2448 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff8e0f3b48 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8e0f3b4f R10: fffffbfff1c1e769 R11: 0000000000000157 R12: 0000000000000001 R13: ffffffff8ba40120 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9868cfc000 CR3: 0000000014372000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_read_lock_held_common kernel/rcu/update.c:106 [inline] rcu_read_lock_sched_held+0x1c/0x70 kernel/rcu/update.c:121 trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0x5f2/0x780 kernel/locking/lockdep.c:5408 rcu_lock_acquire include/linux/rcupdate.h:253 [inline] rcu_read_lock include/linux/rcupdate.h:642 [inline] ieee80211_bss_info_update+0x237/0xbd0 net/mac80211/scan.c:177 ieee80211_rx_bss_info net/mac80211/ibss.c:1126 [inline] ieee80211_rx_mgmt_probe_beacon+0xcf0/0x1760 net/mac80211/ibss.c:1615 ieee80211_ibss_rx_queued_mgmt+0xe04/0x1690 net/mac80211/ibss.c:1642 ieee80211_iface_work+0x7b0/0xa50 net/mac80211/iface.c:1423 process_one_work+0x868/0x15c0 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296