ieee802154 phy1 wpan1: encryption failed: -22 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task syz-executor.2:21047 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28648 21047 8161 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 perf_event_ctx_lock_nested+0x237/0x430 kernel/events/core.c:1283 perf_event_ctx_lock kernel/events/core.c:1296 [inline] perf_event_release_kernel+0x11c/0xcd0 kernel/events/core.c:4605 perf_release+0x33/0x40 kernel/events/core.c:4703 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f1f5a297d4b Code: Bad RIP value. RSP: 002b:00007ffe94addef0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f1f5a297d4b RDX: 0000001b31520000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f1f5a3f9960 R08: 0000000000000000 R09: 0000004a81fa35b9 R10: 000fe8fd35a32f31 R11: 0000000000000293 R12: 000000000004632c R13: 00007ffe94addff0 R14: 00007ffe94ade010 R15: 0000000000000032 INFO: task syz-executor.2:21056 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D29128 21056 8161 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 mutex_lock_double kernel/events/core.c:10470 [inline] __perf_event_ctx_lock_double kernel/events/core.c:10529 [inline] __do_sys_perf_event_open kernel/events/core.c:10784 [inline] __se_sys_perf_event_open+0x1863/0x2720 kernel/events/core.c:10549 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f1f5a2e5109 Code: Bad RIP value. RSP: 002b:00007f1f58c39168 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f1f5a3f8030 RCX: 00007f1f5a2e5109 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000 RBP: 00007f1f5a33f0ad R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000046 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe94adde8f R14: 00007f1f58c39300 R15: 0000000000022000 INFO: task syz-executor.1:21051 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D28648 21051 8160 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 perf_event_ctx_lock_nested+0x237/0x430 kernel/events/core.c:1283 perf_event_ctx_lock kernel/events/core.c:1296 [inline] perf_event_release_kernel+0x11c/0xcd0 kernel/events/core.c:4605 perf_release+0x33/0x40 kernel/events/core.c:4703 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f1bf2a4fd4b Code: Bad RIP value. RSP: 002b:00007fffeab48640 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f1bf2a4fd4b RDX: 00007f1bf2bb8ad0 RSI: ffffffffffffffff RDI: 0000000000000003 RBP: 00007f1bf2bb1960 R08: 0000000000000000 R09: 00007f1bf2bb8ad8 R10: 00007fffeab48740 R11: 0000000000000293 R12: 000000000004603e R13: 00007fffeab48740 R14: 00007f1bf2bb0030 R15: 0000000000000032 INFO: task syz-executor.0:21059 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D29736 21059 8157 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 perf_event_ctx_lock_nested+0x237/0x430 kernel/events/core.c:1283 perf_event_ctx_lock kernel/events/core.c:1296 [inline] perf_event_release_kernel+0x11c/0xcd0 kernel/events/core.c:4605 perf_release+0x33/0x40 kernel/events/core.c:4703 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f28e987ed4b Code: Bad RIP value. RSP: 002b:00007ffec911b920 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f28e987ed4b RDX: 00007f28e99e4778 RSI: ffffffffffffffff RDI: 0000000000000003 RBP: 00007f28e99e0960 R08: 0000000000000000 R09: 00007f28e99e4780 R10: 00007ffec911ba20 R11: 0000000000000293 R12: 0000000000046031 R13: 00007ffec911ba20 R14: 00007f28e99def60 R15: 0000000000000032 INFO: task syz-executor.3:21067 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D27736 21067 8158 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 __do_sys_perf_event_open kernel/events/core.c:10822 [inline] __se_sys_perf_event_open+0xaf7/0x2720 kernel/events/core.c:10549 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f6ca5fac109 Code: Bad RIP value. RSP: 002b:00007f6ca4921168 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f6ca60bef60 RCX: 00007f6ca5fac109 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000 RBP: 00007f6ca60060ad R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff68ba874f R14: 00007f6ca4921300 R15: 0000000000022000 INFO: task syz-executor.3:21071 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D27736 21071 8158 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 __do_sys_perf_event_open kernel/events/core.c:10822 [inline] __se_sys_perf_event_open+0xaf7/0x2720 kernel/events/core.c:10549 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f6ca5fac109 Code: Bad RIP value. RSP: 002b:00007f6ca4900168 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f6ca60bf030 RCX: 00007f6ca5fac109 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000 RBP: 00007f6ca60060ad R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff68ba874f R14: 00007f6ca4900300 R15: 0000000000022000 INFO: task syz-executor.3:21074 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D29984 21074 8158 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 __do_sys_perf_event_open kernel/events/core.c:10822 [inline] __se_sys_perf_event_open+0xaf7/0x2720 kernel/events/core.c:10549 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f6ca5fac109 Code: Bad RIP value. RSP: 002b:00007f6ca489d168 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f6ca60bf2a0 RCX: 00007f6ca5fac109 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000 RBP: 00007f6ca60060ad R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff68ba874f R14: 00007f6ca489d300 R15: 0000000000022000 INFO: task syz-executor.5:21070 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D29736 21070 8159 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 __do_sys_perf_event_open kernel/events/core.c:10822 [inline] __se_sys_perf_event_open+0xaf7/0x2720 kernel/events/core.c:10549 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fe436e68109 Code: Bad RIP value. RSP: 002b:00007fe4357dd168 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fe436f7af60 RCX: 00007fe436e68109 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000 RBP: 00007fe436ec20ad R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd2546982f R14: 00007fe4357dd300 R15: 0000000000022000 INFO: task syz-executor.5:21078 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D29984 21078 8159 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 __do_sys_perf_event_open kernel/events/core.c:10822 [inline] __se_sys_perf_event_open+0xaf7/0x2720 kernel/events/core.c:10549 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fe436e68109 Code: Bad RIP value. RSP: 002b:00007fe4357bc168 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fe436f7b030 RCX: 00007fe436e68109 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000 RBP: 00007fe436ec20ad R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd2546982f R14: 00007fe4357bc300 R15: 0000000000022000 INFO: task syz-executor.5:21079 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D29432 21079 8159 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 __do_sys_perf_event_open kernel/events/core.c:10822 [inline] __se_sys_perf_event_open+0xaf7/0x2720 kernel/events/core.c:10549 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fe436e68109 Code: Bad RIP value. RSP: 002b:00007fe43579b168 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fe436f7b100 RCX: 00007fe436e68109 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000 RBP: 00007fe436ec20ad R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd2546982f R14: 00007fe43579b300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1569: #0: 0000000086eae520 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7839: #0: 00000000f6c45897 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 1 lock held by syz-executor.2/21047: #0: 000000001155a01e (&cpuctx_mutex){+.+.}, at: perf_event_ctx_lock_nested+0x237/0x430 kernel/events/core.c:1283 2 locks held by syz-executor.2/21056: #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: mutex_lock_double kernel/events/core.c:10469 [inline] #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __perf_event_ctx_lock_double kernel/events/core.c:10529 [inline] #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __do_sys_perf_event_open kernel/events/core.c:10784 [inline] #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __se_sys_perf_event_open+0x1856/0x2720 kernel/events/core.c:10549 #1: 000000002ff8bd1d (&cpuctx_mutex/1){+.+.}, at: mutex_lock_double kernel/events/core.c:10470 [inline] #1: 000000002ff8bd1d (&cpuctx_mutex/1){+.+.}, at: __perf_event_ctx_lock_double kernel/events/core.c:10529 [inline] #1: 000000002ff8bd1d (&cpuctx_mutex/1){+.+.}, at: __do_sys_perf_event_open kernel/events/core.c:10784 [inline] #1: 000000002ff8bd1d (&cpuctx_mutex/1){+.+.}, at: __se_sys_perf_event_open+0x1863/0x2720 kernel/events/core.c:10549 1 lock held by syz-executor.1/21051: #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: perf_event_ctx_lock_nested+0x237/0x430 kernel/events/core.c:1283 1 lock held by syz-executor.0/21059: #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: perf_event_ctx_lock_nested+0x237/0x430 kernel/events/core.c:1283 1 lock held by syz-executor.3/21067: #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __do_sys_perf_event_open kernel/events/core.c:10822 [inline] #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __se_sys_perf_event_open+0xaf7/0x2720 kernel/events/core.c:10549 1 lock held by syz-executor.3/21071: #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __do_sys_perf_event_open kernel/events/core.c:10822 [inline] #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __se_sys_perf_event_open+0xaf7/0x2720 kernel/events/core.c:10549 1 lock held by syz-executor.3/21074: #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __do_sys_perf_event_open kernel/events/core.c:10822 [inline] #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __se_sys_perf_event_open+0xaf7/0x2720 kernel/events/core.c:10549 1 lock held by syz-executor.5/21070: #0: 000000001155a01e (&cpuctx_mutex){+.+.}, at: __do_sys_perf_event_open kernel/events/core.c:10822 [inline] #0: 000000001155a01e (&cpuctx_mutex){+.+.}, at: __se_sys_perf_event_open+0xaf7/0x2720 kernel/events/core.c:10549 1 lock held by syz-executor.5/21078: #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __do_sys_perf_event_open kernel/events/core.c:10822 [inline] #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __se_sys_perf_event_open+0xaf7/0x2720 kernel/events/core.c:10549 1 lock held by syz-executor.5/21079: #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __do_sys_perf_event_open kernel/events/core.c:10822 [inline] #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __se_sys_perf_event_open+0xaf7/0x2720 kernel/events/core.c:10549 1 lock held by syz-executor.5/21080: #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __do_sys_perf_event_open kernel/events/core.c:10822 [inline] #0: 000000002ff8bd1d (&cpuctx_mutex){+.+.}, at: __se_sys_perf_event_open+0xaf7/0x2720 kernel/events/core.c:10549 2 locks held by syz-executor.4/21069: #0: 000000001155a01e (&cpuctx_mutex){+.+.}, at: mutex_lock_double kernel/events/core.c:10469 [inline] #0: 000000001155a01e (&cpuctx_mutex){+.+.}, at: __perf_event_ctx_lock_double kernel/events/core.c:10529 [inline] #0: 000000001155a01e (&cpuctx_mutex){+.+.}, at: __do_sys_perf_event_open kernel/events/core.c:10784 [inline] #0: 000000001155a01e (&cpuctx_mutex){+.+.}, at: __se_sys_perf_event_open+0x1856/0x2720 kernel/events/core.c:10549 #1: 000000002ff8bd1d (&cpuctx_mutex/1){+.+.}, at: mutex_lock_double kernel/events/core.c:10470 [inline] #1: 000000002ff8bd1d (&cpuctx_mutex/1){+.+.}, at: __perf_event_ctx_lock_double kernel/events/core.c:10529 [inline] #1: 000000002ff8bd1d (&cpuctx_mutex/1){+.+.}, at: __do_sys_perf_event_open kernel/events/core.c:10784 [inline] #1: 000000002ff8bd1d (&cpuctx_mutex/1){+.+.}, at: __se_sys_perf_event_open+0x1863/0x2720 kernel/events/core.c:10549 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1569 Comm: khungtaskd Not tainted 4.19.211-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+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 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+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 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: 18 Comm: ksoftirqd/1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rcu_cblist_dequeue+0x60/0xe0 kernel/rcu/rcu_segcblist.c:54 Code: fc ff df 48 89 f9 48 c1 e9 03 80 3c 11 00 75 64 48 ba 00 00 00 00 00 fc ff df 48 89 c1 48 83 6b 10 01 48 c1 e9 03 80 3c 11 00 <75> 36 48 8b 10 48 85 d2 48 89 13 74 06 48 83 c4 08 5b c3 48 8d 7b RSP: 0018:ffff8880b5acfcd0 EFLAGS: 00000246 RAX: ffff8880a9d29d40 RBX: ffff8880b5acfd60 RCX: 1ffff110153a53a8 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880b5acfd70 RBP: ffffffff81a31cc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809de52ac8 R13: ffff8880b5acfd60 R14: 000000000000000a R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f48650db008 CR3: 00000000a136f000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 00000000b8fecd19 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_do_batch kernel/rcu/tree.c:2582 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2864 [inline] rcu_process_callbacks+0x989/0x18b0 kernel/rcu/tree.c:2881 __do_softirq+0x265/0x980 kernel/softirq.c:292 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: df 48 89 fisttps -0x77(%rax) 3: f9 stc 4: 48 c1 e9 03 shr $0x3,%rcx 8: 80 3c 11 00 cmpb $0x0,(%rcx,%rdx,1) c: 75 64 jne 0x72 e: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 15: fc ff df 18: 48 89 c1 mov %rax,%rcx 1b: 48 83 6b 10 01 subq $0x1,0x10(%rbx) 20: 48 c1 e9 03 shr $0x3,%rcx 24: 80 3c 11 00 cmpb $0x0,(%rcx,%rdx,1) * 28: 75 36 jne 0x60 <-- trapping instruction 2a: 48 8b 10 mov (%rax),%rdx 2d: 48 85 d2 test %rdx,%rdx 30: 48 89 13 mov %rdx,(%rbx) 33: 74 06 je 0x3b 35: 48 83 c4 08 add $0x8,%rsp 39: 5b pop %rbx 3a: c3 retq 3b: 48 rex.W 3c: 8d .byte 0x8d 3d: 7b .byte 0x7b