BUG: scheduling while atomic: syz-executor.3/28584/0x00000002
Modules linked in:
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 PID: 28584 Comm: syz-executor.3 Not tainted 5.4.125-syzkaller-00016-gae94e015273b #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+0x1d8/0x24e lib/dump_stack.c:118
 __schedule_bug+0x1af/0x240 kernel/sched/core.c:4076
 schedule_debug kernel/sched/core.c:4100 [inline]
 __schedule+0xa42/0x1170 kernel/sched/core.c:4219
 schedule+0x13b/0x1d0 kernel/sched/core.c:4355
 __lock_sock net/core/sock.c:2414 [inline]
 lock_sock_nested+0x1ed/0x310 net/core/sock.c:2960
 lock_sock include/net/sock.h:1549 [inline]
 hci_sock_dev_event+0x2da/0x570 net/bluetooth/hci_sock.c:758
 hci_unregister_dev+0x2a5/0x13f0 net/bluetooth/hci_core.c:3424
 hci_uart_tty_close+0x1a2/0x220 drivers/bluetooth/hci_ldisc.c:545
 tty_ldisc_close drivers/tty/tty_ldisc.c:494 [inline]
 tty_ldisc_kill drivers/tty/tty_ldisc.c:642 [inline]
 tty_ldisc_release+0x272/0x600 drivers/tty/tty_ldisc.c:814
 tty_release_struct+0x27/0xd0 drivers/tty/tty_io.c:1612
 tty_release+0xdd7/0x10a0 drivers/tty/tty_io.c:1785
 __fput+0x27d/0x6c0 fs/file_table.c:281
 task_work_run+0x186/0x1b0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xcb9/0x2bf0 kernel/exit.c:812
 do_group_exit+0x15c/0x2c0 kernel/exit.c:910
 __do_sys_exit_group+0x13/0x20 kernel/exit.c:921
 __se_sys_exit_group+0x10/0x10 kernel/exit.c:919
 __x64_sys_exit_group+0x37/0x40 kernel/exit.c:919
 do_syscall_64+0xcb/0x1e0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4665f9
Code: ee 10 44 31 c6 8d 04 37 49 89 d0 48 99 48 f7 f9 89 bb 20 01 00 00 89 b3 24 01 00 00 48 85 d2 74 0a 48 8b 6c 24 18 48 83 c4 20 <c3> 4c 89 04 24 48 8b 44 24 30 48 ff c0 48 89 44 24 08 48 c7 44 24
RSP: 002b:00007fa53fe7dbc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9
RDX: 00000000004665f9 RSI: 0000000000000000 RDI: 000000000000000b
RBP: 000000000000000b R08: 0000000000000000 R09: 000000000056bf80
R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffebe098b5f R14: 00007fa53fe7e300 R15: 0000000000022000
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(val > preempt_count())
WARNING: CPU: 1 PID: 28584 at kernel/sched/core.c:4019 preempt_count_sub+0x9c/0x160 kernel/sched/core.c:4019
Modules linked in:
CPU: 1 PID: 28584 Comm: syz-executor.3 Tainted: G        W         5.4.125-syzkaller-00016-gae94e015273b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:preempt_count_sub+0x9c/0x160 kernel/sched/core.c:4019
Code: 42 8a 04 30 84 c0 0f 85 89 00 00 00 83 3d 9f af 00 05 00 75 d3 48 c7 c7 80 cb aa 84 48 c7 c6 20 cc aa 84 31 c0 e8 54 33 f6 ff <0f> 0b eb ba e8 fb fe de 00 85 c0 74 b1 48 c7 c0 94 46 47 86 48 c1
RSP: 0018:ffff88816db07a50 EFLAGS: 00010246
RAX: 4157eb46a09d8500 RBX: 0000000000000001 RCX: ffff888194285e80
RDX: 0000000000000000 RSI: 00000000000008af RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffff814e8e0f R09: fffffbfff0dcd2da
R10: fffffbfff0dcd2da R11: 0000000000000000 R12: ffff8881e14c5000
R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff888175a4c000
FS:  00007fa53fe7e700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000557f5e9fbb40 CR3: 00000001db720000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __raw_read_unlock include/linux/rwlock_api_smp.h:227 [inline]
 _raw_read_unlock+0x21/0x40 kernel/locking/spinlock.c:255
 hci_unregister_dev+0x2a5/0x13f0 net/bluetooth/hci_core.c:3424
 hci_uart_tty_close+0x1a2/0x220 drivers/bluetooth/hci_ldisc.c:545
 tty_ldisc_close drivers/tty/tty_ldisc.c:494 [inline]
 tty_ldisc_kill drivers/tty/tty_ldisc.c:642 [inline]
 tty_ldisc_release+0x272/0x600 drivers/tty/tty_ldisc.c:814
 tty_release_struct+0x27/0xd0 drivers/tty/tty_io.c:1612
 tty_release+0xdd7/0x10a0 drivers/tty/tty_io.c:1785
 __fput+0x27d/0x6c0 fs/file_table.c:281
 task_work_run+0x186/0x1b0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xcb9/0x2bf0 kernel/exit.c:812
 do_group_exit+0x15c/0x2c0 kernel/exit.c:910
 __do_sys_exit_group+0x13/0x20 kernel/exit.c:921
 __se_sys_exit_group+0x10/0x10 kernel/exit.c:919
 __x64_sys_exit_group+0x37/0x40 kernel/exit.c:919
 do_syscall_64+0xcb/0x1e0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4665f9
Code: ee 10 44 31 c6 8d 04 37 49 89 d0 48 99 48 f7 f9 89 bb 20 01 00 00 89 b3 24 01 00 00 48 85 d2 74 0a 48 8b 6c 24 18 48 83 c4 20 <c3> 4c 89 04 24 48 8b 44 24 30 48 ff c0 48 89 44 24 08 48 c7 44 24
RSP: 002b:00007fa53fe7dbc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9
RDX: 00000000004665f9 RSI: 0000000000000000 RDI: 000000000000000b
RBP: 000000000000000b R08: 0000000000000000 R09: 000000000056bf80
R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffebe098b5f R14: 00007fa53fe7e300 R15: 0000000000022000
---[ end trace 92ebf68a20f8e4bc ]---