kvm: pic: single mode not supported kvm: pic: single mode not supported kvm: pic: single mode not supported kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 10678 Comm: syz-executor.5 Not tainted 4.14.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88803f5780c0 task.stack: ffff888052aa8000 RIP: 0010:do_con_write+0x702/0x19b0 drivers/tty/vt/vt.c:2411 RSP: 0018:ffff888052aaf5e0 EFLAGS: 00010202 RAX: 0000000000000002 RBX: 0000000000000720 RCX: ffffc900090a1000 RDX: 00000000000021d2 RSI: ffffffff83480915 RDI: ffff888056bf08bd RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffff88803f5780c0 R12: ffff888056bf0540 R13: ffff888056bf08cc R14: 0000000000000010 R15: ffff888052aaf759 FS: 00007f2b97f50700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31423000 CR3: 000000008a250000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: con_put_char+0x78/0xa0 drivers/tty/vt/vt.c:2808 tty_put_char+0xa3/0x120 drivers/tty/tty_io.c:2879 do_output_char+0x126/0x750 drivers/tty/n_tty.c:488 __process_echoes+0x313/0x8c0 drivers/tty/n_tty.c:739 commit_echoes+0x128/0x1e0 drivers/tty/n_tty.c:794 n_tty_receive_char_fast drivers/tty/n_tty.c:1449 [inline] n_tty_receive_buf_fast drivers/tty/n_tty.c:1609 [inline] __receive_buf drivers/tty/n_tty.c:1644 [inline] n_tty_receive_buf_common+0x1795/0x25a0 drivers/tty/n_tty.c:1742 tty_ldisc_receive_buf+0x9e/0x170 drivers/tty/tty_buffer.c:455 paste_selection+0x1cc/0x414 drivers/tty/vt/selection.c:391 tioclinux+0xfd/0x490 drivers/tty/vt/vt.c:2707 vt_ioctl+0x12fb/0x1ea0 drivers/tty/vt/vt_ioctl.c:372 tty_ioctl+0x50f/0x13c0 drivers/tty/tty_io.c:2661 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45c369 RSP: 002b:00007f2b97f4fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000017bc0 RCX: 000000000045c369 RDX: 0000000020000900 RSI: 000000000000541c RDI: 0000000000000003 RBP: 000000000078bf40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c R13: 00007ffe54df545f R14: 00007f2b97f509c0 R15: 000000000078bf0c Code: b2 00 00 00 66 03 5c 24 30 e8 5b 8d 13 fe 48 8b 44 24 78 80 38 00 0f 85 4c 10 00 00 4d 8b b4 24 a0 03 00 00 4c 89 f0 48 c1 e8 03 <0f> b6 14 28 4c 89 f0 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 RIP: do_con_write+0x702/0x19b0 drivers/tty/vt/vt.c:2411 RSP: ffff888052aaf5e0 ---[ end trace 5bb74835de9d3329 ]---