general protection fault, probably for non-canonical address 0xdffffc0020000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x0000000100000008-0x000000010000000f]
CPU: 1 PID: 17702 Comm: syz-executor.3 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:ffffc900089df930 EFLAGS: 00010203
RAX: 0000000020000001 RBX: 000000010000000c RCX: 0000000000040000
RDX: ffffc9000ffcd000 RSI: 0000000000000435 RDI: ffff88804d67a3f0
RBP: ffffc900089dfc18 R08: ffffffff8401c011 R09: ffffffff83ffec40
R10: 0000000000000006 R11: ffff88807d274300 R12: ffff88804d67a000
R13: dffffc0000000000 R14: 00000000000007fe R15: 1ffff11009acf47e
FS:  00007f003a168700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000240 CR3: 0000000099e1a000 CR4: 00000000001426e0
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: 0033:0x45c1f9
Code: Bad RIP value.
RSP: 002b:00007f003a167c78 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: 00007ffd2985533f R14: 00007f003a1689c0 R15: 000000000078bf0c
Modules linked in:
---[ end trace 9f790829dd64ad04 ]---
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:ffffc900089df930 EFLAGS: 00010203
RAX: 0000000020000001 RBX: 000000010000000c RCX: 0000000000040000
RDX: ffffc9000ffcd000 RSI: 0000000000000435 RDI: ffff88804d67a3f0
RBP: ffffc900089dfc18 R08: ffffffff8401c011 R09: ffffffff83ffec40
R10: 0000000000000006 R11: ffff88807d274300 R12: ffff88804d67a000
R13: dffffc0000000000 R14: 00000000000007fe R15: 1ffff11009acf47e
FS:  00007f003a168700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000240 CR3: 0000000099e1a000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400