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: 8882 Comm: syz-executor230 Not tainted 5.6.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:do_con_write+0x1aea/0xf360 drivers/tty/vt/vt.c:2760
Code: 02 00 00 48 8b 7c 24 60 49 89 ff 49 c1 ef 03 43 80 3c 2f 00 74 0a e8 35 25 b4 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 ce 02 00 00 66 44 89 33 48 c7 c7 1c b6
RSP: 0018:ffffc90002187880 EFLAGS: 00010203
RAX: 0000000020000001 RBX: 000000010000000e RCX: ffff8880a29763c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888094d9e3a0
RBP: ffffc90002187b68 R08: ffffffff84000078 R09: ffffffff83fe3414
R10: ffff8880a29763c0 R11: 0000000000000006 R12: ffff888094d9e000
R13: dffffc0000000000 R14: 000000000000074d R15: 1ffff110129b3c74
FS:  00000000022de880(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001795e80 CR3: 00000000920de000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 con_write+0x25/0x40 drivers/tty/vt/vt.c:3135
 process_output_block drivers/tty/n_tty.c:595 [inline]
 n_tty_write+0xd0c/0x1200 drivers/tty/n_tty.c:2333
 do_tty_write drivers/tty/tty_io.c:962 [inline]
 tty_write+0x5a1/0x950 drivers/tty/tty_io.c:1046
 __vfs_write+0xb8/0x740 fs/read_write.c:494
 vfs_write+0x270/0x580 fs/read_write.c:558
 ksys_write+0x117/0x220 fs/read_write.c:611
 __do_sys_write fs/read_write.c:623 [inline]
 __se_sys_write fs/read_write.c:620 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:620
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4403c9
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 5b 14 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffffadf2a68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403c9
RDX: 0000000000000002 RSI: 0000000020002b40 RDI: 0000000000000004
RBP: 00000000006ca018 R08: 000000000000000e R09: 00000000004002c8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401cb0
R13: 0000000000401d40 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 2bec802a0cd3d815 ]---
RIP: 0010:do_con_write+0x1aea/0xf360 drivers/tty/vt/vt.c:2760
Code: 02 00 00 48 8b 7c 24 60 49 89 ff 49 c1 ef 03 43 80 3c 2f 00 74 0a e8 35 25 b4 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 ce 02 00 00 66 44 89 33 48 c7 c7 1c b6
RSP: 0018:ffffc90002187880 EFLAGS: 00010203
RAX: 0000000020000001 RBX: 000000010000000e RCX: ffff8880a29763c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888094d9e3a0
RBP: ffffc90002187b68 R08: ffffffff84000078 R09: ffffffff83fe3414
R10: ffff8880a29763c0 R11: 0000000000000006 R12: ffff888094d9e000
R13: dffffc0000000000 R14: 000000000000074d R15: 1ffff110129b3c74
FS:  00000000022de880(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001795e80 CR3: 00000000920de000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400