------------[ cut here ]------------
do not call blocking ops when !TASK_RUNNING; state=1 set at [<0000000084d3f7ce>] n_hdlc_tty_read+0x32a/0x810 drivers/tty/n_hdlc.c:589
WARNING: CPU: 0 PID: 15752 at kernel/sched/core.c:6094 __might_sleep+0x13d/0x190 kernel/sched/core.c:6094
kobject: 'loop2' (000000008f3c8af4): kobject_uevent_env
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 15752 Comm: syz-executor1 Not tainted 5.0.0-rc2+ #32
kobject: 'loop2' (000000008f3c8af4): fill_kobj_path: path = '/devices/virtual/block/loop2'
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+0x1db/0x2d0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x48 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:__might_sleep+0x13d/0x190 kernel/sched/core.c:6094
Code: 65 48 8b 1c 25 40 ee 01 00 48 8d 7b 10 48 89 fe 48 c1 ee 03 80 3c 06 00 75 2b 48 8b 73 10 48 c7 c7 c0 23 4b 88 e8 c3 13 f3 ff <0f> 0b e9 43 ff ff ff e8 f7 b5 6d 00 e9 26 ff ff ff e8 ed b5 6d 00
RSP: 0018:ffff888094047910 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff8880428161c0 RCX: ffffc9000caad000
RDX: 000000000001431b RSI: ffffffff81685456 RDI: 0000000000000005
RBP: ffff888094047940 R08: ffff8880428161c0 R09: ffffed1015cc5021
R10: ffffed1015cc5020 R11: ffff8880ae628107 R12: ffffffff88819660
R13: 0000000000000019 R14: 0000000000000000 R15: ffff8880428161c0
 __might_fault+0xc6/0x1e0 mm/memory.c:4379
 _copy_to_user+0x30/0x120 lib/usercopy.c:25
 copy_to_user include/linux/uaccess.h:152 [inline]
 n_hdlc_tty_read+0x60f/0x810 drivers/tty/n_hdlc.c:600
 tty_read+0x196/0x2a0 drivers/tty/tty_io.c:866
 do_loop_readv_writev fs/read_write.c:700 [inline]
 do_loop_readv_writev fs/read_write.c:687 [inline]
 do_iter_read+0x4a9/0x660 fs/read_write.c:921
 vfs_readv+0x175/0x1c0 fs/read_write.c:983
 do_readv+0x11a/0x300 fs/read_write.c:1016
 __do_sys_readv fs/read_write.c:1103 [inline]
 __se_sys_readv fs/read_write.c:1100 [inline]
 __x64_sys_readv+0x75/0xb0 fs/read_write.c:1100
 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458099
Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f0060536c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458099
RDX: 0000000000000008 RSI: 00000000200027c0 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f00605376d4
R13: 00000000004c4b0b R14: 00000000004d8458 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..