general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 12217 Comm: syz-executor0 Not tainted 4.20.0-rc1-next-20181109+ #110
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:reset_buffer_flags drivers/tty/n_tty.c:334 [inline]
RIP: 0010:n_tty_flush_buffer+0x64/0x260 drivers/tty/n_tty.c:372
Code: 80 3c 02 00 0f 85 d0 01 00 00 49 8b 9c 24 70 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 60 22 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 9c 01 00 00 48 c7 83 60 22 00 00 00 00 00 00 48
RSP: 0018:ffff880178dd7680 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000044c RSI: 0000000000000000 RDI: 0000000000002260
RBP: ffff880178dd7698 R08: ffff8801789fcbb0 R09: 0000000000000008
R10: 0000000000007221 R11: ffff8801789fc2c0 R12: ffff8801d87184c0
R13: ffff8801d87186f8 R14: 0000000000000000 R15: ffff880178dd76e8
FS:  00007f9db5e76700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000728000 CR3: 00000001cec06000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 set_termios+0x390/0x7d0 drivers/tty/tty_ioctl.c:404
 tty_mode_ioctl+0x268/0xb40 drivers/tty/tty_ioctl.c:745
 n_tty_ioctl_helper+0x54/0x3b0 drivers/tty/tty_ioctl.c:940
 n_tty_ioctl+0x54/0x360 drivers/tty/n_tty.c:2464
 tty_ioctl+0x5c6/0x17d0 drivers/tty/tty_io.c:2646
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:509 [inline]
 do_vfs_ioctl+0x1de/0x1790 fs/ioctl.c:696
 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl fs/ioctl.c:718 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457569
Code: fd b3 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f9db5e75c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569
RDX: 0000000020000000 RSI: 0000000000005404 RDI: 0000000000000005
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9db5e766d4
R13: 00000000004c100b R14: 00000000004d1da0 R15: 00000000ffffffff
Modules linked in:
---[ end trace 03d9bffb5af0b26d ]---
RIP: 0010:reset_buffer_flags drivers/tty/n_tty.c:334 [inline]
RIP: 0010:n_tty_flush_buffer+0x64/0x260 drivers/tty/n_tty.c:372
kobject: 'loop1' (000000000029d37a): kobject_uevent_env
kobject: 'loop1' (000000000029d37a): fill_kobj_path: path = '/devices/virtual/block/loop1'
Code: 80 3c 02 00 0f 85 d0 01 00 00 49 8b 9c 24 70 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 60 22 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 9c 01 00 00 48 c7 83 60 22 00 00 00 00 00 00 48
RSP: 0018:ffff880178dd7680 EFLAGS: 00010202
kobject: 'loop5' (00000000731ea66b): kobject_uevent_env
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
kobject: 'loop5' (00000000731ea66b): fill_kobj_path: path = '/devices/virtual/block/loop5'
RDX: 000000000000044c RSI: 0000000000000000 RDI: 0000000000002260
kobject: 'loop3' (000000006ba9a22c): kobject_uevent_env
RBP: ffff880178dd7698 R08: ffff8801789fcbb0 R09: 0000000000000008
kobject: 'loop3' (000000006ba9a22c): fill_kobj_path: path = '/devices/virtual/block/loop3'
R10: 0000000000007221 R11: ffff8801789fc2c0 R12: ffff8801d87184c0
R13: ffff8801d87186f8 R14: 0000000000000000 R15: ffff880178dd76e8
kobject: 'loop4' (00000000effeb55a): kobject_uevent_env
FS:  00007f9db5e76700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
kobject: 'loop4' (00000000effeb55a): fill_kobj_path: path = '/devices/virtual/block/loop4'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop2' (000000004111d297): kobject_uevent_env
kobject: 'loop2' (000000004111d297): fill_kobj_path: path = '/devices/virtual/block/loop2'
CR2: 000000000070a6b4 CR3: 00000001cec06000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop1' (000000000029d37a): kobject_uevent_env