general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 0 PID: 5439 Comm: agetty Not tainted 5.8.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:do_con_write+0x1a6a/0xf2d0 drivers/tty/vt/vt.c:2786
Code: 02 00 00 48 8b 7c 24 60 49 89 ff 49 c1 ef 03 43 80 3c 2f 00 74 0a e8 55 da b1 fd 48 8b 7c 24 60 48 8b 1f 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 c5 02 00 00 66 44 89 33 48 c7 c7 24 40
RSP: 0018:ffffc9000796f930 EFLAGS: 00010202
RAX: 0000000000000002 RBX: 0000000000000010 RCX: ffff888087f7e440
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88805ef4c3f0
RBP: ffffc9000796fc18 R08: ffffffff8401c151 R09: ffffffff83ffed80
R10: 0000000000000006 R11: ffff888087f7e440 R12: ffff88805ef4c000
R13: dffffc0000000000 R14: 0000000000000744 R15: 1ffff1100bde987e
FS:  00007fa44030b500(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000560144783f98 CR3: 00000001fde9f000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 con_write+0x20/0x40 drivers/tty/vt/vt.c:3159
 process_output_block drivers/tty/n_tty.c:595 [inline]
 n_tty_write+0xcbf/0x1170 drivers/tty/n_tty.c:2333
 do_tty_write drivers/tty/tty_io.c:962 [inline]
 tty_write+0x593/0x940 drivers/tty/tty_io.c:1046
 vfs_write+0x2dd/0xc70 fs/read_write.c:576
 ksys_write+0x11b/0x220 fs/read_write.c:631
 do_syscall_64+0x73/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fa43fe29970
Code: Bad RIP value.
RSP: 002b:00007fffa7f6fde8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa43fe29970
RDX: 0000000000000001 RSI: 00007fa4400e8683 RDI: 0000000000000001
RBP: 00007fa4400e8683 R08: 00007fa4400e9760 R09: 00007fa44030b500
R10: 0000000000000097 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000001 R14: 00007fa4400e8600 R15: 0000000000000001
Modules linked in:
---[ end trace 269c47d2052799e0 ]---
RIP: 0010:do_con_write+0x1a6a/0xf2d0 drivers/tty/vt/vt.c:2786
Code: 02 00 00 48 8b 7c 24 60 49 89 ff 49 c1 ef 03 43 80 3c 2f 00 74 0a e8 55 da b1 fd 48 8b 7c 24 60 48 8b 1f 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 c5 02 00 00 66 44 89 33 48 c7 c7 24 40
RSP: 0018:ffffc9000796f930 EFLAGS: 00010202
RAX: 0000000000000002 RBX: 0000000000000010 RCX: ffff888087f7e440
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88805ef4c3f0
RBP: ffffc9000796fc18 R08: ffffffff8401c151 R09: ffffffff83ffed80
R10: 0000000000000006 R11: ffff888087f7e440 R12: ffff88805ef4c000
R13: dffffc0000000000 R14: 0000000000000744 R15: 1ffff1100bde987e
FS:  00007fa44030b500(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9edcdb2000 CR3: 00000001fde9f000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400