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kernel BUG at kernel/time/timer.c:1089!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 2939 Comm: kworker/u4:5 Not tainted 4.14.160-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound flush_to_ldisc
task: ffff88809d59a040 task.stack: ffff88809d6e8000
RIP: 0010:add_timer kernel/time/timer.c:1089 [inline]
RIP: 0010:add_timer+0x689/0xae0 kernel/time/timer.c:1087
RSP: 0018:ffff88809d6efb38 EFLAGS: 00010297
RAX: ffff88809d59a040 RBX: ffff88809d6efba8 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88809d59a938 RDI: ffff8880a04fcfc8
RBP: ffff88809d6efbd0 R08: ffff88809d59a040 R09: ffff88809d59a958
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a04fcfc0
R13: dffffc0000000000 R14: ffff888080d52ed5 R15: ffff8880a04fcfc0
FS:  0000000000000000(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f10f871a000 CR3: 000000009338c000 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+0xc9a/0x1170 drivers/net/hamradio/6pack.c:435
 tty_ldisc_receive_buf+0x14d/0x1a0 drivers/tty/tty_buffer.c:459
 tty_port_default_receive_buf+0x73/0xa0 drivers/tty/tty_port.c:37
 receive_buf drivers/tty/tty_buffer.c:475 [inline]
 flush_to_ldisc+0x1ec/0x400 drivers/tty/tty_buffer.c:527
 process_one_work+0x863/0x1600 kernel/workqueue.c:2114
 worker_thread+0x5d9/0x1050 kernel/workqueue.c:2248
 kthread+0x319/0x430 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 84 8a 00 00 00 e8 d8 10 0d 00 65 ff 0d 31 af b1 7e 0f 85 3c fd ff ff e8 c6 10 0d 00 e8 d5 03 b0 ff e9 2d fd ff ff e8 b7 10 0d 00 <0f> 0b e8 b0 10 0d 00 49 c7 c5 80 4a 02 00 e8 54 bf ba 01 48 ba 
RIP: add_timer kernel/time/timer.c:1089 [inline] RSP: ffff88809d6efb38
RIP: add_timer+0x689/0xae0 kernel/time/timer.c:1087 RSP: ffff88809d6efb38
kobject: 'kvm' (ffff8882194c0110): kobject_uevent_env
kobject: 'kvm' (ffff8882194c0110): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'kvm' (ffff8882194c0110): kobject_uevent_env
kobject: 'kvm' (ffff8882194c0110): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'kvm' (ffff8882194c0110): kobject_uevent_env
kobject: 'kvm' (ffff8882194c0110): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'kvm' (ffff8882194c0110): kobject_uevent_env
kobject: 'kvm' (ffff8882194c0110): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'kvm' (ffff8882194c0110): kobject_uevent_env
kobject: 'kvm' (ffff8882194c0110): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'kvm' (ffff8882194c0110): kobject_uevent_env
kobject: 'kvm' (ffff8882194c0110): fill_kobj_path: path = '/devices/virtual/misc/kvm'
---[ end trace 956cc855a14f1df9 ]---