sp0: Synchronizing with TNC
sp0: Found TNC
------------[ cut here ]------------
kernel BUG at kernel/time/timer.c:1089!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 9017 Comm: kworker/u4:6 Not tainted 4.14.174-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound flush_to_ldisc
task: ffff888081436600 task.stack: ffff8880568d8000
RIP: 0010:add_timer kernel/time/timer.c:1089 [inline]
RIP: 0010:add_timer+0x60a/0xa20 kernel/time/timer.c:1087
RSP: 0018:ffff8880568dfb80 EFLAGS: 00010297
RAX: ffff888081436600 RBX: 1ffff1100ad1bf74 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff888081436ef8 RDI: ffff8880520fd6c8
RBP: ffff8880520fd6c0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: 00000000fffff3a3 R14: ffff8880520fd6c0 R15: 0000000000000028
FS:  0000000000000000(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe32f99eac CR3: 000000008931a000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 decode_prio_command drivers/net/hamradio/6pack.c:934 [inline]
 sixpack_decode drivers/net/hamradio/6pack.c:1003 [inline]
 sixpack_receive_buf drivers/net/hamradio/6pack.c:458 [inline]
 sixpack_receive_buf+0xc75/0x1130 drivers/net/hamradio/6pack.c:435
 tty_ldisc_receive_buf+0x12e/0x170 drivers/tty/tty_buffer.c:459
 tty_port_default_receive_buf+0x6e/0xa0 drivers/tty/tty_port.c:37
 receive_buf drivers/tty/tty_buffer.c:475 [inline]
 flush_to_ldisc+0x1dd/0x3f0 drivers/tty/tty_buffer.c:527
 process_one_work+0x813/0x1540 kernel/workqueue.c:2116
 worker_thread+0x5d1/0x1070 kernel/workqueue.c:2250
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 84 86 00 00 00 e8 97 b1 0c 00 65 ff 0d e0 57 b4 7e 0f 85 99 fd ff ff e8 85 b1 0c 00 e8 09 aa b2 ff e9 8a fd ff ff e8 76 b1 0c 00 <0f> 0b e8 6f b1 0c 00 49 c7 c4 80 4a 02 00 e8 33 92 b0 01 48 ba 
RIP: add_timer kernel/time/timer.c:1089 [inline] RSP: ffff8880568dfb80
RIP: add_timer+0x60a/0xa20 kernel/time/timer.c:1087 RSP: ffff8880568dfb80
XFS (loop0): Filesystem has a realtime volume, use rtdev=device option
XFS (loop0): RT mount failed
---[ end trace 2ab7c20b01141863 ]---