general protection fault, probably for non-canonical address 0xdffffc0020000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x0000000100000008-0x000000010000000f]
CPU: 0 PID: 31884 Comm: syz-executor.4 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 95 db 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:ffffc90004377890 EFLAGS: 00010203
RAX: 0000000020000001 RBX: 000000010000000c RCX: 0000000000040000
RDX: ffffc900121a5000 RSI: 0000000000000151 RDI: ffff88805def23f0
RBP: ffffc90004377b80 R08: ffffffff8401c011 R09: ffffffff83ffec40
R10: 0000000000000006 R11: ffff888045c96140 R12: ffff88805def2000
R13: dffffc0000000000 R14: 00000000000007fe R15: 1ffff1100bbde47e
FS:  00007feb625eb700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f221000 CR3: 0000000096819000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 con_put_char+0x7d/0xc0 drivers/tty/vt/vt.c:3169
 tty_put_char+0x97/0x110 drivers/tty/tty_io.c:3031
 do_output_char+0x586/0x940 drivers/tty/n_tty.c:488
 process_output drivers/tty/n_tty.c:514 [inline]
 n_tty_write+0xd5c/0x1170 drivers/tty/n_tty.c:2345
 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: 0033:0x45c1f9
Code: Bad RIP value.
RSP: 002b:00007feb625eac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000036dc0 RCX: 000000000045c1f9
RDX: 0000000000001006 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 000000000078bf40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c
R13: 00007ffc7f93c73f R14: 00007feb625eb9c0 R15: 000000000078bf0c
Modules linked in:
---[ end trace 139476750f8e3516 ]---
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 95 db 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:ffffc90004377890 EFLAGS: 00010203
RAX: 0000000020000001 RBX: 000000010000000c RCX: 0000000000040000
RDX: ffffc900121a5000 RSI: 0000000000000151 RDI: ffff88805def23f0
RBP: ffffc90004377b80 R08: ffffffff8401c011 R09: ffffffff83ffec40
R10: 0000000000000006 R11: ffff888045c96140 R12: ffff88805def2000
R13: dffffc0000000000 R14: 00000000000007fe R15: 1ffff1100bbde47e
FS:  00007feb625eb700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f221000 CR3: 0000000096819000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400