general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11809 Comm: syz-executor3 Not tainted 4.19.0-rc5+ #39 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:n_tty_set_termios+0x2d9/0xe80 drivers/tty/n_tty.c:1800 kobject: 'loop1' (00000000e848eb78): kobject_uevent_env Code: 45 d0 31 ff 83 e0 02 89 c6 89 45 d0 e8 60 02 aa fd 8b 45 d0 4c 89 f1 48 ba 00 00 00 00 00 fc ff df 85 c0 0f 95 c0 48 c1 e9 03 <0f> b6 14 11 4c 89 f1 83 e1 07 38 ca 7f 08 84 d2 0f 85 96 09 00 00 RSP: 0018:ffff8801882d7678 EFLAGS: 00010203 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000000b kobject: 'loop1' (00000000e848eb78): fill_kobj_path: path = '/devices/virtual/block/loop1' RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: ffff8801882d76b0 R08: ffff88018d0c4080 R09: 0000000000000002 R10: ffff88018d0c4950 R11: 2877abc625d0cb75 R12: ffff8801d2f59640 R13: ffff8801d2f599f4 R14: 000000000000005d R15: ffff8801882d7710 FS: 00007f9313951700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff34f36ee8 CR3: 00000001c48dd000 CR4: 00000000001406f0 Call Trace: tty_set_termios+0x7a0/0xac0 drivers/tty/tty_ioctl.c:341 set_termios+0x41e/0x7d0 drivers/tty/tty_ioctl.c:414 tty_mode_ioctl+0x857/0xb40 drivers/tty/tty_ioctl.c:749 n_tty_ioctl_helper+0x54/0x3b0 drivers/tty/tty_ioctl.c:940 n_tty_ioctl+0x54/0x360 drivers/tty/n_tty.c:2450 tty_ioctl+0x5ad/0x1820 drivers/tty/tty_io.c:2660 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9313950c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000020000000 RSI: 0000000000005402 RDI: 0000000000000003 RBP: 000000000072c180 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f93139516d4 R13: 00000000004c0dab R14: 00000000004d17b8 R15: 00000000ffffffff Modules linked in: ---[ end trace 33540249ceb7e1d5 ]--- RIP: 0010:n_tty_set_termios+0x2d9/0xe80 drivers/tty/n_tty.c:1800 Code: 45 d0 31 ff 83 e0 02 89 c6 89 45 d0 e8 60 02 aa fd 8b 45 d0 4c 89 f1 48 ba 00 00 00 00 00 fc ff df 85 c0 0f 95 c0 48 c1 e9 03 <0f> b6 14 11 4c 89 f1 83 e1 07 38 ca 7f 08 84 d2 0f 85 96 09 00 00 kobject: 'loop4' (00000000ac1b6ef4): kobject_uevent_env kobject: 'loop4' (00000000ac1b6ef4): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000024a3646): kobject_uevent_env RSP: 0018:ffff8801882d7678 EFLAGS: 00010203 kobject: 'loop0' (0000000006fa1cd2): kobject_uevent_env kobject: 'loop0' (0000000006fa1cd2): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000024a3646): fill_kobj_path: path = '/devices/virtual/block/loop2' RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000000b kobject: 'loop5' (000000008de3d8a9): kobject_uevent_env kobject: 'loop0' (0000000006fa1cd2): kobject_uevent_env kobject: 'loop5' (000000008de3d8a9): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (0000000006fa1cd2): fill_kobj_path: path = '/devices/virtual/block/loop0' RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: ffff8801882d76b0 R08: ffff88018d0c4080 R09: 0000000000000002 R10: ffff88018d0c4950 R11: 2877abc625d0cb75 R12: ffff8801d2f59640 R13: ffff8801d2f599f4 R14: 000000000000005d R15: ffff8801882d7710 FS: 00007f9313951700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ca23000 CR3: 00000001c48dd000 CR4: 00000000001406e0