INFO: task kworker/u4:13:18723 blocked for more than 143 seconds. Not tainted 5.14.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:13 state:D stack:24864 pid:18723 ppid: 2 flags:0x00004000 Workqueue: events_unbound fsnotify_connector_destroy_workfn Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x940/0x26f0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x176/0x280 kernel/sched/completion.c:138 __synchronize_srcu+0x1f4/0x290 kernel/rcu/srcutree.c:930 fsnotify_connector_destroy_workfn+0x49/0xa0 fs/notify/mark.c:164 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 INFO: task kworker/u4:20:18747 blocked for more than 143 seconds. Not tainted 5.14.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:20 state:D stack:24648 pid:18747 ppid: 2 flags:0x00004000 Workqueue: events_unbound fsnotify_mark_destroy_workfn Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x940/0x26f0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x176/0x280 kernel/sched/completion.c:138 __synchronize_srcu+0x1f4/0x290 kernel/rcu/srcutree.c:930 fsnotify_mark_destroy_workfn+0xfd/0x340 fs/notify/mark.c:860 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 INFO: task syz-executor.5:24577 blocked for more than 144 seconds. Not tainted 5.14.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:27848 pid:24577 ppid: 31144 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x940/0x26f0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x176/0x280 kernel/sched/completion.c:138 __synchronize_srcu+0x1f4/0x290 kernel/rcu/srcutree.c:930 tracepoint_synchronize_unregister include/linux/tracepoint.h:93 [inline] perf_trace_event_unreg.isra.0+0xbc/0x2b0 kernel/trace/trace_event_perf.c:168 perf_trace_destroy+0xb5/0xf0 kernel/trace/trace_event_perf.c:243 perf_try_init_event+0x453/0x560 kernel/events/core.c:11208 perf_init_event kernel/events/core.c:11257 [inline] perf_event_alloc.part.0+0xf16/0x3b10 kernel/events/core.c:11548 perf_event_alloc kernel/events/core.c:11971 [inline] __do_sys_perf_event_open+0x4ae/0x3130 kernel/events/core.c:12069 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f5778376188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000001000000000 RSI: ffffffffffffffff RDI: 0000000020000000 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffdb53c3ddf R14: 00007f5778376300 R15: 0000000000022000 INFO: task syz-executor.5:24583 blocked for more than 144 seconds. Not tainted 5.14.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:26672 pid:24583 ppid: 31144 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x940/0x26f0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425 __mutex_lock_common kernel/locking/mutex.c:669 [inline] __mutex_lock+0xa34/0x12f0 kernel/locking/mutex.c:729 perf_trace_init+0x49/0x2f0 kernel/trace/trace_event_perf.c:223 perf_tp_event_init+0xa2/0x120 kernel/events/core.c:9735 perf_try_init_event+0x12a/0x560 kernel/events/core.c:11193 perf_init_event kernel/events/core.c:11257 [inline] perf_event_alloc.part.0+0xf16/0x3b10 kernel/events/core.c:11548 perf_event_alloc kernel/events/core.c:11971 [inline] __do_sys_perf_event_open+0x4ae/0x3130 kernel/events/core.c:12069 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f5778355188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9 RDX: 0000001000000000 RSI: ffffffffffffffff RDI: 0000000020000000 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffdb53c3ddf R14: 00007f5778355300 R15: 0000000000022000 INFO: task syz-executor.3:24575 blocked for more than 145 seconds. Not tainted 5.14.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:27368 pid:24575 ppid: 8446 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x940/0x26f0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425 __mutex_lock_common kernel/locking/mutex.c:669 [inline] __mutex_lock+0xa34/0x12f0 kernel/locking/mutex.c:729 exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:837 synchronize_rcu+0x132/0x190 kernel/rcu/tree.c:3746 rcu_sync_enter+0x147/0x2e0 kernel/rcu/sync.c:149 percpu_down_write+0x57/0x3e0 kernel/locking/percpu-rwsem.c:220 ext4_ind_migrate+0x237/0x840 fs/ext4/migrate.c:623 ext4_ioctl_setflags fs/ext4/ioctl.c:456 [inline] ext4_fileattr_set+0x14c8/0x1940 fs/ext4/ioctl.c:762 vfs_fileattr_set+0x7f5/0xbe0 fs/ioctl.c:700 ioctl_fssetxattr fs/ioctl.c:762 [inline] do_vfs_ioctl+0xe71/0x15d0 fs/ioctl.c:849 __do_sys_ioctl fs/ioctl.c:872 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x108/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f46e2c04188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000000400009 RSI: 0000000040086602 RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffe11ca4c9f R14: 00007f46e2c04300 R15: 0000000000022000 INFO: task syz-executor.3:24580 blocked for more than 146 seconds. Not tainted 5.14.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:28488 pid:24580 ppid: 8446 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x940/0x26f0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 rwsem_down_write_slowpath+0x7b9/0x11d0 kernel/locking/rwsem.c:1107 __down_write_common kernel/locking/rwsem.c:1262 [inline] __down_write_common kernel/locking/rwsem.c:1259 [inline] __down_write kernel/locking/rwsem.c:1271 [inline] down_write+0x137/0x150 kernel/locking/rwsem.c:1516 inode_lock include/linux/fs.h:786 [inline] process_measurement+0x71a/0x1920 security/integrity/ima/ima_main.c:241 ima_file_check+0xb1/0x100 security/integrity/ima/ima_main.c:516 do_open fs/namei.c:3428 [inline] path_openat+0x1643/0x2740 fs/namei.c:3559 do_filp_open+0x1aa/0x400 fs/namei.c:3586 do_sys_openat2+0x16d/0x4d0 fs/open.c:1200 do_sys_open fs/open.c:1216 [inline] __do_sys_openat fs/open.c:1232 [inline] __se_sys_openat fs/open.c:1227 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1227 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f46e2be3188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9 RDX: 0000000000007a05 RSI: 00000000200001c0 RDI: ffffffffffffff9c RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001700 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffe11ca4c9f R14: 00007f46e2be3300 R15: 0000000000022000 INFO: task syz-executor.3:24584 blocked for more than 146 seconds. Not tainted 5.14.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:28488 pid:24584 ppid: 8446 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x940/0x26f0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 rwsem_down_write_slowpath+0x7b9/0x11d0 kernel/locking/rwsem.c:1107 __down_write_common kernel/locking/rwsem.c:1262 [inline] __down_write_common kernel/locking/rwsem.c:1259 [inline] __down_write kernel/locking/rwsem.c:1271 [inline] down_write+0x137/0x150 kernel/locking/rwsem.c:1516 inode_lock include/linux/fs.h:786 [inline] process_measurement+0x71a/0x1920 security/integrity/ima/ima_main.c:241 ima_file_check+0xb1/0x100 security/integrity/ima/ima_main.c:516 do_open fs/namei.c:3428 [inline] path_openat+0x1643/0x2740 fs/namei.c:3559 do_filp_open+0x1aa/0x400 fs/namei.c:3586 do_sys_openat2+0x16d/0x4d0 fs/open.c:1200 do_sys_open fs/open.c:1216 [inline] __do_sys_openat fs/open.c:1232 [inline] __se_sys_openat fs/open.c:1227 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1227 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f46e2bc2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004665f9 RDX: 0000000000007a05 RSI: 0000000020000380 RDI: ffffffffffffff9c RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001700 R11: 0000000000000246 R12: 000000000056c0f0 R13: 00007ffe11ca4c9f R14: 00007f46e2bc2300 R15: 0000000000022000 INFO: task syz-executor.3:24589 blocked for more than 147 seconds. Not tainted 5.14.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:28488 pid:24589 ppid: 8446 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x940/0x26f0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 rwsem_down_write_slowpath+0x7b9/0x11d0 kernel/locking/rwsem.c:1107 __down_write_common kernel/locking/rwsem.c:1262 [inline] __down_write_common kernel/locking/rwsem.c:1259 [inline] __down_write kernel/locking/rwsem.c:1271 [inline] down_write+0x137/0x150 kernel/locking/rwsem.c:1516 inode_lock include/linux/fs.h:786 [inline] process_measurement+0x71a/0x1920 security/integrity/ima/ima_main.c:241 ima_file_check+0xb1/0x100 security/integrity/ima/ima_main.c:516 do_open fs/namei.c:3428 [inline] path_openat+0x1643/0x2740 fs/namei.c:3559 do_filp_open+0x1aa/0x400 fs/namei.c:3586 do_sys_openat2+0x16d/0x4d0 fs/open.c:1200 do_sys_open fs/open.c:1216 [inline] __do_sys_openat fs/open.c:1232 [inline] __se_sys_openat fs/open.c:1227 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1227 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f46e2ba1188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 000000000056c1a8 RCX: 00000000004665f9 RDX: 0000000000007a05 RSI: 0000000020000340 RDI: ffffffffffffff9c RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001700 R11: 0000000000000246 R12: 000000000056c1a8 R13: 00007ffe11ca4c9f R14: 00007f46e2ba1300 R15: 0000000000022000 INFO: task syz-executor.3:24591 blocked for more than 148 seconds. Not tainted 5.14.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:26320 pid:24591 ppid: 8446 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x940/0x26f0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 rwsem_down_write_slowpath+0x7b9/0x11d0 kernel/locking/rwsem.c:1107 __down_write_common kernel/locking/rwsem.c:1262 [inline] __down_write_common kernel/locking/rwsem.c:1259 [inline] __down_write kernel/locking/rwsem.c:1271 [inline] down_write+0x137/0x150 kernel/locking/rwsem.c:1516 inode_lock include/linux/fs.h:786 [inline] process_measurement+0x71a/0x1920 security/integrity/ima/ima_main.c:241 ima_file_check+0xb1/0x100 security/integrity/ima/ima_main.c:516 do_open fs/namei.c:3428 [inline] path_openat+0x1643/0x2740 fs/namei.c:3559 do_filp_open+0x1aa/0x400 fs/namei.c:3586 do_sys_openat2+0x16d/0x4d0 fs/open.c:1200 do_sys_open fs/open.c:1216 [inline] __do_sys_openat fs/open.c:1232 [inline] __se_sys_openat fs/open.c:1227 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1227 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f46e2b80188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 000000000056c260 RCX: 00000000004665f9 RDX: 0000000000007a05 RSI: 0000000020000340 RDI: ffffffffffffff9c RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001700 R11: 0000000000000246 R12: 000000000056c260 R13: 00007ffe11ca4c9f R14: 00007f46e2b80300 R15: 0000000000022000 INFO: task syz-executor.3:24593 blocked for more than 149 seconds. Not tainted 5.14.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:29592 pid:24593 ppid: 8446 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0x940/0x26f0 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425 __mutex_lock_common kernel/locking/mutex.c:669 [inline] __mutex_lock+0xa34/0x12f0 kernel/locking/mutex.c:729 account_event kernel/events/core.c:11386 [inline] perf_event_alloc.part.0+0x31ed/0x3b10 kernel/events/core.c:11619 perf_event_alloc kernel/events/core.c:11971 [inline] __do_sys_perf_event_open+0x4ae/0x3130 kernel/events/core.c:12069 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f46e2b5f188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 000000000056c318 RCX: 00000000004665f9 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000180 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000056c318 R13: 00007ffe11ca4c9f R14: 00007f46e2b5f300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1660: #0: ffffffff8b97f960 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446 1 lock held by khugepaged/1667: #0: ffffffff8ba62ae8 (lock#6){+.+.}-{3:3}, at: __lru_add_drain_all+0x65/0x760 mm/swap.c:769 1 lock held by in:imklog/8128: #0: ffff88807e70b270 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990 2 locks held by kworker/u4:13/18723: #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 kernel/workqueue.c:2268 #1: ffffc900020cfdb0 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 kernel/workqueue.c:2272 2 locks held by kworker/u4:20/18747: #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 kernel/workqueue.c:2268 #1: ffffc900018cfdb0 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 kernel/workqueue.c:2272 3 locks held by kworker/0:1/23643: 2 locks held by kworker/1:4/11674: 2 locks held by syz-executor.5/24577: #0: ffffffff902591b8 (&pmus_srcu){....}-{0:0}, at: perf_event_alloc.part.0+0xce2/0x3b10 kernel/events/core.c:11546 #1: ffffffff8b9f3148 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x23/0xf0 kernel/trace/trace_event_perf.c:241 2 locks held by syz-executor.5/24583: #0: ffffffff902591b8 (&pmus_srcu){....}-{0:0}, at: perf_event_alloc.part.0+0xce2/0x3b10 kernel/events/core.c:11546 #1: ffffffff8b9f3148 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x49/0x2f0 kernel/trace/trace_event_perf.c:223 4 locks held by syz-executor.3/24575: #0: ffff88807f4cc460 (sb_writers#5){.+.+}-{0:0}, at: ioctl_setflags fs/ioctl.c:729 [inline] #0: ffff88807f4cc460 (sb_writers#5){.+.+}-{0:0}, at: do_vfs_ioctl+0xe36/0x15d0 fs/ioctl.c:843 #1: ffff88807167b5c8 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:786 [inline] #1: ffff88807167b5c8 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: vfs_fileattr_set+0x148/0xbe0 fs/ioctl.c:685 #2: ffff88807f4cebd8 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_ind_migrate+0x237/0x840 fs/ext4/migrate.c:623 #3: ffffffff8b988ce8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] #3: ffffffff8b988ce8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:837 2 locks held by syz-executor.3/24580: #0: ffff88807f4cc460 (sb_writers#5){.+.+}-{0:0}, at: do_open fs/namei.c:3419 [inline] #0: ffff88807f4cc460 (sb_writers#5){.+.+}-{0:0}, at: path_openat+0x1b65/0x2740 fs/namei.c:3559 #1: ffff88807167b5c8 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:786 [inline] #1: ffff88807167b5c8 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: process_measurement+0x71a/0x1920 security/integrity/ima/ima_main.c:241 2 locks held by syz-executor.3/24584: #0: ffff88807f4cc460 (sb_writers#5){.+.+}-{0:0}, at: do_open fs/namei.c:3419 [inline] #0: ffff88807f4cc460 (sb_writers#5){.+.+}-{0:0}, at: path_openat+0x1b65/0x2740 fs/namei.c:3559 #1: ffff88807167b5c8 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:786 [inline] #1: ffff88807167b5c8 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: process_measurement+0x71a/0x1920 security/integrity/ima/ima_main.c:241 2 locks held by syz-executor.3/24589: #0: ffff88807f4cc460 (sb_writers#5){.+.+}-{0:0}, at: do_open fs/namei.c:3419 [inline] #0: ffff88807f4cc460 (sb_writers#5){.+.+}-{0:0}, at: path_openat+0x1b65/0x2740 fs/namei.c:3559 #1: ffff88807167b5c8 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:786 [inline] #1: ffff88807167b5c8 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: process_measurement+0x71a/0x1920 security/integrity/ima/ima_main.c:241 2 locks held by syz-executor.3/24591: #0: ffff88807f4cc460 (sb_writers#5){.+.+}-{0:0}, at: do_open fs/namei.c:3419 [inline] #0: ffff88807f4cc460 (sb_writers#5){.+.+}-{0:0}, at: path_openat+0x1b65/0x2740 fs/namei.c:3559 #1: ffff88807167b5c8 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:786 [inline] #1: ffff88807167b5c8 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: process_measurement+0x71a/0x1920 security/integrity/ima/ima_main.c:241 1 lock held by syz-executor.3/24593: #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: account_event kernel/events/core.c:11386 [inline] #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: perf_event_alloc.part.0+0x31ed/0x3b10 kernel/events/core.c:11619 2 locks held by syz-executor.4/24578: #0: ffffffff902591b8 (&pmus_srcu){....}-{0:0}, at: perf_event_alloc.part.0+0xce2/0x3b10 kernel/events/core.c:11546 #1: ffffffff8b9f3148 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x49/0x2f0 kernel/trace/trace_event_perf.c:223 2 locks held by syz-executor.4/24587: #0: ffffffff902591b8 (&pmus_srcu){....}-{0:0}, at: perf_event_alloc.part.0+0xce2/0x3b10 kernel/events/core.c:11546 #1: ffffffff8b9f3148 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x49/0x2f0 kernel/trace/trace_event_perf.c:223 2 locks held by syz-executor.1/24576: #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: account_event kernel/events/core.c:11386 [inline] #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: perf_event_alloc.part.0+0x31ed/0x3b10 kernel/events/core.c:11619 #1: ffffffff8b988ce8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline] #1: ffffffff8b988ce8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4fc/0x620 kernel/rcu/tree_exp.h:837 1 lock held by syz-executor.1/24581: #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: account_event kernel/events/core.c:11386 [inline] #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: perf_event_alloc.part.0+0x31ed/0x3b10 kernel/events/core.c:11619 1 lock held by syz-executor.1/24586: #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: account_event kernel/events/core.c:11386 [inline] #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: perf_event_alloc.part.0+0x31ed/0x3b10 kernel/events/core.c:11619 1 lock held by syz-executor.1/24608: #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: account_event kernel/events/core.c:11386 [inline] #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: perf_event_alloc.part.0+0x31ed/0x3b10 kernel/events/core.c:11619 1 lock held by syz-executor.2/24582: #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: account_event kernel/events/core.c:11386 [inline] #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: perf_event_alloc.part.0+0x31ed/0x3b10 kernel/events/core.c:11619 1 lock held by syz-executor.2/24588: #0: ffffffff8b9e0d68 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_register_prio_may_exist+0x7d/0xe0 kernel/tracepoint.c:478 1 lock held by syz-executor.2/24607: #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: account_event kernel/events/core.c:11386 [inline] #0: ffffffff8ba4b248 (perf_sched_mutex){+.+.}-{3:3}, at: perf_event_alloc.part.0+0x31ed/0x3b10 kernel/events/core.c:11619 1 lock held by syz-executor.2/24617: #0: ffffffff8b9e0d68 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_register_prio_may_exist+0x7d/0xe0 kernel/tracepoint.c:478 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1660 Comm: khungtaskd Not tainted 5.14.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0xc1d/0xf50 kernel/hung_task.c:295 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4859 Comm: systemd-journal Not tainted 5.14.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:166 [inline] RIP: 0010:unwind_next_frame+0x308/0x1ce0 arch/x86/kernel/unwind_orc.c:443 Code: 48 8d 3c 40 4c 8d 8c 3f c0 81 e3 8d 83 c2 01 49 81 f9 4a 2b 85 8e 0f 83 f3 10 00 00 89 d7 48 8d 3c 7f 48 8d bc 3f c0 81 e3 8d <48> 81 ff 4a 2b 85 8e 0f 87 d8 10 00 00 48 8d 3c 85 64 bb 77 8d 29 RSP: 0018:ffffc9000132f8d8 EFLAGS: 00000297 RAX: 00000000001a1038 RBX: 1ffff92000265f23 RCX: 00000000001a1038 RDX: 00000000001a104a RSI: 0000000000084000 RDI: ffffffff8e7fe37c RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8e7fe310 R10: fffff52000265f41 R11: 0000000000086089 R12: ffffc9000132f9f8 R13: ffffc9000132f9e5 R14: ffffc9000132f9b0 R15: ffffffff89400067 FS: 00007f78d1eec8c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f78cf7fe000 CR3: 000000001751f000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] __kasan_slab_alloc+0x83/0xb0 mm/kasan/common.c:467 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook mm/slab.h:519 [inline] slab_alloc_node mm/slub.c:2959 [inline] slab_alloc mm/slub.c:2967 [inline] kmem_cache_alloc+0x285/0x4a0 mm/slub.c:2972 getname_flags.part.0+0x50/0x4f0 fs/namei.c:138 getname_flags include/linux/audit.h:319 [inline] getname+0x8e/0xd0 fs/namei.c:217 do_sys_openat2+0xf5/0x4d0 fs/open.c:1194 do_sys_open fs/open.c:1216 [inline] __do_sys_open fs/open.c:1224 [inline] __se_sys_open fs/open.c:1220 [inline] __x64_sys_open+0x119/0x1c0 fs/open.c:1220 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f78d147b840 Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 RSP: 002b:00007fffeeadcdb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007fffeeadd0c0 RCX: 00007f78d147b840 RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 0000557e7e2fef50 RBP: 000000000000000d R08: 000000000000ffc2 R09: 00000000ffffffff R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000557e7e2f1040 R14: 00007fffeeadd080 R15: 0000557e7e2fed70 ---------------- Code disassembly (best guess): 0: 48 8d 3c 40 lea (%rax,%rax,2),%rdi 4: 4c 8d 8c 3f c0 81 e3 lea -0x721c7e40(%rdi,%rdi,1),%r9 b: 8d c: 83 c2 01 add $0x1,%edx f: 49 81 f9 4a 2b 85 8e cmp $0xffffffff8e852b4a,%r9 16: 0f 83 f3 10 00 00 jae 0x110f 1c: 89 d7 mov %edx,%edi 1e: 48 8d 3c 7f lea (%rdi,%rdi,2),%rdi 22: 48 8d bc 3f c0 81 e3 lea -0x721c7e40(%rdi,%rdi,1),%rdi 29: 8d * 2a: 48 81 ff 4a 2b 85 8e cmp $0xffffffff8e852b4a,%rdi <-- trapping instruction 31: 0f 87 d8 10 00 00 ja 0x110f 37: 48 8d 3c 85 64 bb 77 lea -0x7288449c(,%rax,4),%rdi 3e: 8d 3f: 29 .byte 0x29