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: 6772 Comm: syz-executor138 Not tainted 5.8.0-rc3-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 05 02 b2 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 64 2c
RSP: 0018:ffffc90000f87900 EFLAGS: 00010203
RAX: 0000000020000001 RBX: 000000010000000c RCX: ffff88809256e4c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880a73353f0
RBP: ffffc90000f87be8 R08: ffffffff84017411 R09: ffffffff83ffa040
R10: 0000000000000006 R11: ffff88809256e4c0 R12: ffff8880a7335000
R13: dffffc0000000000 R14: 00000000000007fe R15: 1ffff11014e66a7e
FS:  0000000000eb5880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004553a0 CR3: 00000000994c8000 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+0x9c/0x6e0 fs/read_write.c:495
 vfs_write+0x274/0x580 fs/read_write.c:559
 ksys_write+0x11b/0x220 fs/read_write.c:612
 do_syscall_64+0x73/0xe0 arch/x86/entry/common.c:359
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x440459
Code: Bad RIP value.
RSP: 002b:00007fffd08302b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440459
RDX: 0000000000001006 RSI: 0000000020000240 RDI: 0000000000000004
RBP: 00000000006cb018 R08: 000000000000000e R09: 00000000004002c8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401d40
R13: 0000000000401dd0 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace f189c63f77d941ee ]---
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 05 02 b2 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 64 2c
RSP: 0018:ffffc90000f87900 EFLAGS: 00010203
RAX: 0000000020000001 RBX: 000000010000000c RCX: ffff88809256e4c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880a73353f0
RBP: ffffc90000f87be8 R08: ffffffff84017411 R09: ffffffff83ffa040
R10: 0000000000000006 R11: ffff88809256e4c0 R12: ffff8880a7335000
R13: dffffc0000000000 R14: 00000000000007fe R15: 1ffff11014e66a7e
FS:  0000000000eb5880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004553a0 CR3: 00000000994c8000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400