INFO: task syz-executor.2:6383 blocked for more than 143 seconds. Not tainted 6.11.0-rc2-syzkaller-g34ac1e82e5a7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:26960 pid:6383 tgid:6382 ppid:6059 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 sg_ioctl_common drivers/scsi/sg.c:1121 [inline] sg_ioctl+0xa4c/0x2e80 drivers/scsi/sg.c:1163 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfe/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6f0387cee9 RSP: 002b:00007f6f0452b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f6f039abf80 RCX: 00007f6f0387cee9 RDX: 0000000020000040 RSI: 00000000c0481273 RDI: 0000000000000003 RBP: 00007f6f038c949e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f6f039abf80 R15: 00007fffc2d5e6f8 INFO: task syz-executor.2:6384 blocked for more than 143 seconds. Not tainted 6.11.0-rc2-syzkaller-g34ac1e82e5a7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:28960 pid:6384 tgid:6382 ppid:6059 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 sg_ioctl_common drivers/scsi/sg.c:1129 [inline] sg_ioctl+0x4bc/0x2e80 drivers/scsi/sg.c:1163 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfe/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6f0387cee9 RSP: 002b:00007f6f0450a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f6f039ac050 RCX: 00007f6f0387cee9 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003 RBP: 00007f6f038c949e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f6f039ac050 R15: 00007fffc2d5e6f8 INFO: task syz-executor.1:6386 blocked for more than 144 seconds. Not tainted 6.11.0-rc2-syzkaller-g34ac1e82e5a7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:26640 pid:6386 tgid:6385 ppid:6079 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 sg_ioctl_common drivers/scsi/sg.c:1121 [inline] sg_ioctl+0xa4c/0x2e80 drivers/scsi/sg.c:1163 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfe/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbb2ae7cee9 RSP: 002b:00007fbb2bccb0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fbb2afabf80 RCX: 00007fbb2ae7cee9 RDX: 0000000020000040 RSI: 00000000c0481273 RDI: 0000000000000003 RBP: 00007fbb2aec949e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fbb2afabf80 R15: 00007fffeb8068c8 INFO: task syz-executor.1:6387 blocked for more than 144 seconds. Not tainted 6.11.0-rc2-syzkaller-g34ac1e82e5a7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:28960 pid:6387 tgid:6385 ppid:6079 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 sg_ioctl_common drivers/scsi/sg.c:1129 [inline] sg_ioctl+0x4bc/0x2e80 drivers/scsi/sg.c:1163 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfe/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbb2ae7cee9 RSP: 002b:00007fbb2bcaa0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fbb2afac050 RCX: 00007fbb2ae7cee9 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003 RBP: 00007fbb2aec949e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fbb2afac050 R15: 00007fffeb8068c8 INFO: task syz-executor.4:6389 blocked for more than 144 seconds. Not tainted 6.11.0-rc2-syzkaller-g34ac1e82e5a7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:27360 pid:6389 tgid:6388 ppid:6067 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 sg_ioctl_common drivers/scsi/sg.c:1121 [inline] sg_ioctl+0xa4c/0x2e80 drivers/scsi/sg.c:1163 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfe/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8da267cee9 RSP: 002b:00007f8da34290c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f8da27abf80 RCX: 00007f8da267cee9 RDX: 0000000020000040 RSI: 00000000c0481273 RDI: 0000000000000003 RBP: 00007f8da26c949e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f8da27abf80 R15: 00007ffcf1f7afd8 INFO: task syz-executor.4:6390 blocked for more than 145 seconds. Not tainted 6.11.0-rc2-syzkaller-g34ac1e82e5a7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:28864 pid:6390 tgid:6388 ppid:6067 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 sg_ioctl_common drivers/scsi/sg.c:1129 [inline] sg_ioctl+0x4bc/0x2e80 drivers/scsi/sg.c:1163 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfe/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8da267cee9 RSP: 002b:00007f8da34080c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f8da27ac050 RCX: 00007f8da267cee9 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003 RBP: 00007f8da26c949e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f8da27ac050 R15: 00007ffcf1f7afd8 INFO: task syz-executor.5:6393 blocked for more than 145 seconds. Not tainted 6.11.0-rc2-syzkaller-g34ac1e82e5a7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:27360 pid:6393 tgid:6392 ppid:6062 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 sg_ioctl_common drivers/scsi/sg.c:1121 [inline] sg_ioctl+0xa4c/0x2e80 drivers/scsi/sg.c:1163 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfe/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7a9da7cee9 RSP: 002b:00007f7a9e71c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f7a9dbabf80 RCX: 00007f7a9da7cee9 RDX: 0000000020000040 RSI: 00000000c0481273 RDI: 0000000000000003 RBP: 00007f7a9dac949e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f7a9dbabf80 R15: 00007ffc80e1d5a8 INFO: task syz-executor.5:6394 blocked for more than 146 seconds. Not tainted 6.11.0-rc2-syzkaller-g34ac1e82e5a7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:28960 pid:6394 tgid:6392 ppid:6062 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 sg_ioctl_common drivers/scsi/sg.c:1129 [inline] sg_ioctl+0x4bc/0x2e80 drivers/scsi/sg.c:1163 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfe/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7a9da7cee9 RSP: 002b:00007f7a9d5ff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f7a9dbac050 RCX: 00007f7a9da7cee9 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003 RBP: 00007f7a9dac949e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f7a9dbac050 R15: 00007ffc80e1d5a8 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff8e9382a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline] #0: ffffffff8e9382a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #0: ffffffff8e9382a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6626 5 locks held by kworker/0:2/934: 3 locks held by kworker/u8:5/968: #0: ffff8880b933ea18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:560 #1: ffff8880b9328948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:989 #2: ffff888057d30768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:6014 [inline] #2: ffff888057d30768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: cfg80211_wiphy_work+0xd9/0x490 net/wireless/core.c:426 3 locks held by kworker/u8:6/1114: 5 locks held by kworker/u8:8/2986: 2 locks held by getty/4977: #0: ffff88802fb020a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ac/0x1e00 drivers/tty/n_tty.c:2211 3 locks held by kworker/0:7/6355: #0: ffff888015878948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888015878948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90002dbfd00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90002dbfd00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff888012168240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x2d1/0x4130 drivers/net/netdevsim/fib.c:1489 2 locks held by syz-executor.3/6381: 1 lock held by syz-executor.2/6383: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.2/6384: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.1/6386: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.1/6387: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.4/6389: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.4/6390: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.5/6393: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.5/6394: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor/6844: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor/6845: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.3/6857: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.3/6858: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.1/6878: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.1/6880: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.2/6883: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.2/6884: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.4/6886: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.4/6887: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.5/6889: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.5/6890: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor/6918: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor/6919: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.3/6971: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.3/6972: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.1/6993: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.1/6994: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.2/6997: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.2/6998: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.5/7007: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.5/7008: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.4/7019: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.4/7020: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor/7030: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor/7031: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 1 lock held by syz-executor.1/7050: #0: ffffffff8fc81bc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fc81bc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor.2/7054: #0: ffffffff8fc81bc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fc81bc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor.3/7062: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0xb0/0x1e0 kernel/trace/blktrace.c:647 1 lock held by syz-executor.3/7064: #0: ffff888020dc6510 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x20/0x40 kernel/trace/blktrace.c:406 7 locks held by syz-executor.5/7073: #0: ffff88801e4f2420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2876 [inline] #0: ffff88801e4f2420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 fs/read_write.c:586 #1: ffff8880b45b3c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 fs/kernfs/file.c:325 #2: ffff888022e0a5a8 (kn->active#54){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 fs/kernfs/file.c:326 #3: ffffffff8f51ea28 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216 #4: ffff88806b9580e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #4: ffff88806b9580e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1094 [inline] #4: ffff88806b9580e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1292 #5: ffff88806b95a250 (&devlink->lock_key#20){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 drivers/net/netdevsim/dev.c:1672 #6: ffffffff8e93d540 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4486 2 locks held by syz-executor.4/7082: #0: ffffffff8fc81bc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fc81bc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 #1: ffffffff8e93d678 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:296 [inline] #1: ffffffff8e93d678 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:958 ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc2-syzkaller-g34ac1e82e5a7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xfee/0x1030 kernel/hung_task.c:379 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 35 Comm: kworker/u8:2 Not tainted 6.11.0-rc2-syzkaller-g34ac1e82e5a7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:cfg80211_inform_bss_frame_data+0x2a3/0x720 net/wireless/scan.c:3220 Code: 26 f6 f6 eb 98 bf 24 00 00 00 4c 89 ee e8 55 e5 8e f6 49 83 fd 23 0f 86 e6 01 00 00 4c 89 64 24 28 e8 61 e0 8e f6 49 83 c5 dc <48> 8d 45 24 48 89 44 24 20 48 8d 5d 22 48 8d 45 10 48 89 44 24 08 RSP: 0018:ffffc90000ab7688 EFLAGS: 00000217 RAX: ffffffff8b04977f RBX: 0000000000000080 RCX: ffff88801b6eda00 RDX: 0000000000000000 RSI: 000000000000004c RDI: 0000000000000024 RBP: ffff88802d8ab050 R08: ffffffff8b04976b R09: 1ffffffff202f8d5 R10: dffffc0000000000 R11: fffffbfff202f8d6 R12: 0000000000000820 R13: 0000000000000028 R14: ffff8881a4cb0700 R15: 0000000000000080 FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f40fe59e440 CR3: 000000000e734000 CR4: 0000000000350ef0 Call Trace: ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226 ieee80211_rx_bss_info net/mac80211/ibss.c:1100 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1579 [inline] ieee80211_ibss_rx_queued_mgmt+0x1962/0x2d70 net/mac80211/ibss.c:1606 ieee80211_iface_process_skb net/mac80211/iface.c:1588 [inline] ieee80211_iface_work+0x8a5/0xf20 net/mac80211/iface.c:1642 cfg80211_wiphy_work+0x2dd/0x490 net/wireless/core.c:440 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244