kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 15306 Comm: syz-executor.1 Not tainted 4.14.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88805cb62300 task.stack: ffff8882102d8000
RIP: 0010:do_con_write.part.0+0x78e/0x1a20 drivers/tty/vt/vt.c:2411
RSP: 0018:ffff8882102df750 EFLAGS: 00010203
RAX: 0000000020000001 RBX: 000000010000000e RCX: ffffc90005cf1000
RDX: 0000000000000308 RSI: ffffffff833fefe2 RDI: ffff888029aba83d
RBP: 0000000000000722 R08: 0000000000000001 R09: 0000000000000000
R10: ffff88805cb62c78 R11: ffff88805cb62300 R12: dffffc0000000000
R13: ffff888029aba84c R14: ffff888029aba4c0 R15: ffff8880880d76c5
FS:  00007f8fb28a5700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000400200 CR3: 0000000060616000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_con_write drivers/tty/vt/vt.c:2218 [inline]
 con_write+0x33/0xc0 drivers/tty/vt/vt.c:2798
 process_output_block drivers/tty/n_tty.c:595 [inline]
 n_tty_write+0x375/0xe20 drivers/tty/n_tty.c:2333
 do_tty_write drivers/tty/tty_io.c:959 [inline]
 tty_write+0x3f1/0x6e0 drivers/tty/tty_io.c:1043
 __vfs_write+0xe4/0x630 fs/read_write.c:480
 __kernel_write+0xf5/0x330 fs/read_write.c:501
 write_pipe_buf+0x143/0x1b0 fs/splice.c:797
 splice_from_pipe_feed fs/splice.c:502 [inline]
 __splice_from_pipe+0x332/0x740 fs/splice.c:626
 splice_from_pipe+0xc6/0x120 fs/splice.c:661
 default_file_splice_write+0x37/0x80 fs/splice.c:809
 do_splice_from fs/splice.c:851 [inline]
 do_splice fs/splice.c:1147 [inline]
 SYSC_splice fs/splice.c:1402 [inline]
 SyS_splice+0xca0/0x1230 fs/splice.c:1382
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45c1d9
RSP: 002b:00007f8fb28a4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 0000000000031a00 RCX: 000000000045c1d9
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000078bf58 R08: 000000000000fffd R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c
R13: 00007ffe6f321a1f R14: 00007f8fb28a59c0 R15: 000000000078bf0c
Code: 24 b2 00 00 00 66 03 6c 24 38 e8 fe b5 1a fe 48 8b 44 24 78 80 38 00 0f 85 d2 10 00 00 49 8b 9e a0 03 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 14 20 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 
RIP: do_con_write.part.0+0x78e/0x1a20 drivers/tty/vt/vt.c:2411 RSP: ffff8882102df750
---[ end trace 1e8cbcfb70858f52 ]---