TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor1:8555]
Modules linked in:
CPU: 1 PID: 8555 Comm: syz-executor1 Not tainted 4.18.0-rc5+ #29
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rep_nop arch/x86/include/asm/processor.h:658 [inline]
RIP: 0010:cpu_relax arch/x86/include/asm/processor.h:663 [inline]
RIP: 0010:csd_lock_wait kernel/smp.c:108 [inline]
RIP: 0010:smp_call_function_single+0x357/0x500 kernel/smp.c:302
Code: 85 93 00 00 00 e8 89 c5 12 00 e9 be 00 00 00 8b 3a e8 fd 79 6e 00 45 85 f6 74 91 41 89 de eb 08 0f 1f 00 e8 6b c5 12 00 f3 90 <8b> 5c 24 58 4c 89 e7 e8 bd 6f 6e 00 8b 00 83 e0 01 83 e3 01 85 c0 
RSP: 0018:ffff8801a0eaf560 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffffffff81555f95 RBX: 0000000000000001 RCX: ffff8801b55bbb00
RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea0009c581a0
RBP: ffff8801a0eaf638 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000001 R11: ffffffff8117d090 R12: ffff8801a0eaf5b8
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b55bc400
FS:  00007fa4f2e27700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564c121e1aa8 CR3: 000000013e6e2000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 task_function_call kernel/events/core.c:115 [inline]
 event_function_call+0x2ee/0x750 kernel/events/core.c:277
 perf_remove_from_context kernel/events/core.c:2105 [inline]
 perf_event_release_kernel+0x855/0x1b70 kernel/events/core.c:4560
 perf_release+0x5d/0x90 kernel/events/core.c:4647
 __fput+0x458/0xa30 fs/file_table.c:209
 ____fput+0x37/0x40 fs/file_table.c:243
 task_work_run+0x22e/0x2b0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x110e/0x3930 kernel/exit.c:867
 do_group_exit+0x1a0/0x360 kernel/exit.c:970
 get_signal+0x15c3/0x2190 kernel/signal.c:2468
 do_signal+0xca/0x2060 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop arch/x86/entry/common.c:162 [inline]
 prepare_exit_to_usermode+0x297/0x430 arch/x86/entry/common.c:197
 retint_user+0x8/0x8
RIP: 0033:0x455ac5
Code: 00 00 00 66 90 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 eb b9 fb ff <c3> 66 2e 0f 1f 84 00 00 00 00 00 48 85 ff 41 57 4d 89 cf 41 56 41 
RSP: 002b:0000000020000040 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fa4f2e276d4 RCX: 0000000000455ab9
RDX: 000000002084effc RSI: 0000000020000040 RDI: 0000000000000000
RBP: 000000000072bf50 R08: 0000000020000140 R09: 0000000000000000
R10: 0000000020c35ffc R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000001
Sending NMI from CPU 1 to CPUs 0:
------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan_entry.c:81!
invalid opcode: 0000 [#1] SMP PTI
CPU: 0 PID: 8512 Comm: syz-executor2 Not tainted 4.18.0-rc5+ #29
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kmsan_nmi_enter+0x42/0x70 mm/kmsan/kmsan_entry.c:80
Code: 00 74 27 65 8b 04 25 80 90 03 00 83 c0 01 83 f8 08 7d 27 65 89 04 25 80 90 03 00 65 c6 04 25 15 6e 0b 00 ff c3 0f 0b 90 eb fe <0f> 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 eb fe 0f 0b 66 90 66 2e 
RSP: 0018:fffffe000000eea8 EFLAGS: 00010046
RAX: 0000000000000200 RBX: 0000000000000001 RCX: 00000000c0000101
RDX: 00000000ffff8802 RSI: ffffffff8a40136c RDI: ffff880125e8a000
RBP: fffffe000000eef9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 00000001ae9ce000 R15: 0000000000000000
FS:  00007f89513c1700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa4f2e47c88 CR3: 00000001ae9ce000 CR4: 00000000001406f0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace da9acbbb69f34630 ]---
RIP: 0010:kmsan_nmi_enter+0x42/0x70 mm/kmsan/kmsan_entry.c:80
Code: 00 74 27 65 8b 04 25 80 90 03 00 83 c0 01 83 f8 08 7d 27 65 89 04 25 80 90 03 00 65 c6 04 25 15 6e 0b 00 ff c3 0f 0b 90 eb fe <0f> 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 eb fe 0f 0b 66 90 66 2e 
RSP: 0018:fffffe000000eea8 EFLAGS: 00010046
RAX: 0000000000000200 RBX: 0000000000000001 RCX: 00000000c0000101
RDX: 00000000ffff8802 RSI: ffffffff8a40136c RDI: ffff880125e8a000
RBP: fffffe000000eef9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 00000001ae9ce000 R15: 0000000000000000
FS:  00007f89513c1700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa4f2e47c88 CR3: 00000001ae9ce000 CR4: 00000000001406f0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600