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: 6809 Comm: syz-executor515 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+0x979/0x7400 drivers/tty/vt/vt.c:2786
Code: a4 24 ca 00 00 00 44 01 e5 e8 b3 19 86 fd 48 8b 44 24 50 80 38 00 0f 85 28 27 00 00 4d 8b a6 f0 03 00 00 4c 89 e0 48 c1 e8 03 <0f> b6 14 18 4c 89 e0 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 13
RSP: 0018:ffffc900015f7a10 EFLAGS: 00010203
RAX: 0000000020000001 RBX: dffffc0000000000 RCX: ffffffff83ed9d2a
RDX: ffff888097ed00c0 RSI: ffffffff83ed9d6d RDI: 0000000000000003
RBP: 00000000000007fe R08: ffffffff83ec99f0 R09: ffff888097ed0988
R10: 0000000000000000 R11: 0000000000000000 R12: 000000010000000c
R13: 0000000000000000 R14: ffff8880a7c23000 R15: ffff8880a7c233dc
FS:  0000000001c42880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004553a0 CR3: 00000000933a8000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 con_write+0x22/0xb0 drivers/tty/vt/vt.c:3159
 process_output_block drivers/tty/n_tty.c:595 [inline]
 n_tty_write+0x3ce/0xf80 drivers/tty/n_tty.c:2333
 do_tty_write drivers/tty/tty_io.c:962 [inline]
 tty_write+0x4d9/0x870 drivers/tty/tty_io.c:1046
 __vfs_write+0x76/0x100 fs/read_write.c:495
 vfs_write+0x268/0x5d0 fs/read_write.c:559
 ksys_write+0x12d/0x250 fs/read_write.c:612
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:359
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x440459
Code: Bad RIP value.
RSP: 002b:00007ffcfdc533b8 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 f58ed3c6d5e3d8c2 ]---
RIP: 0010:do_con_write+0x979/0x7400 drivers/tty/vt/vt.c:2786
Code: a4 24 ca 00 00 00 44 01 e5 e8 b3 19 86 fd 48 8b 44 24 50 80 38 00 0f 85 28 27 00 00 4d 8b a6 f0 03 00 00 4c 89 e0 48 c1 e8 03 <0f> b6 14 18 4c 89 e0 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 13
RSP: 0018:ffffc900015f7a10 EFLAGS: 00010203
RAX: 0000000020000001 RBX: dffffc0000000000 RCX: ffffffff83ed9d2a
RDX: ffff888097ed00c0 RSI: ffffffff83ed9d6d RDI: 0000000000000003
RBP: 00000000000007fe R08: ffffffff83ec99f0 R09: ffff888097ed0988
R10: 0000000000000000 R11: 0000000000000000 R12: 000000010000000c
R13: 0000000000000000 R14: ffff8880a7c23000 R15: ffff8880a7c233dc
FS:  0000000001c42880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004553a0 CR3: 00000000933a8000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400