general protection fault, probably for non-canonical address 0xdffffc001ffffff5: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x00000000ffffffa8-0x00000000ffffffaf]
CPU: 1 PID: 24535 Comm: syz-executor.1 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+0x979/0x7400 drivers/tty/vt/vt.c:2786
Code: a4 24 ca 00 00 00 44 01 e5 e8 b3 eb 85 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:ffffc90004807858 EFLAGS: 00010207
RAX: 000000001ffffff5 RBX: dffffc0000000000 RCX: ffffc90004142000
RDX: 0000000000040000 RSI: ffffffff83edd0dd RDI: 0000000000000003
RBP: 00000000000007fe R08: ffffffff83eccd60 R09: ffff888052e26a88
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffac
R13: 0000000000000000 R14: ffff88804dc1d000 R15: ffff88804dc1d3dc
FS:  00007f2060223700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000063138000 CR4: 00000000001426e0
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
 do_loop_readv_writev fs/read_write.c:737 [inline]
 do_loop_readv_writev fs/read_write.c:721 [inline]
 do_iter_write+0x48b/0x5f0 fs/read_write.c:1020
 vfs_writev+0x1aa/0x2e0 fs/read_write.c:1091
 do_writev+0x139/0x300 fs/read_write.c:1134
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45c369
Code: Bad RIP value.
RSP: 002b:00007f2060222c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 0000000000038240 RCX: 000000000045c369
RDX: 0000000000000001 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 000000000078bf40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c
R13: 00007ffd8bb0bcdf R14: 00007f20602239c0 R15: 000000000078bf0c
Modules linked in:
---[ end trace 4f6c939e08b50f40 ]---
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 eb 85 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:ffffc90004807858 EFLAGS: 00010207
RAX: 000000001ffffff5 RBX: dffffc0000000000 RCX: ffffc90004142000
RDX: 0000000000040000 RSI: ffffffff83edd0dd RDI: 0000000000000003
RBP: 00000000000007fe R08: ffffffff83eccd60 R09: ffff888052e26a88
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffac
R13: 0000000000000000 R14: ffff88804dc1d000 R15: ffff88804dc1d3dc
FS:  00007f2060223700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9bb23bc028 CR3: 0000000063138000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400