WARNING: CPU: 0 PID: 12533 at lib/iov_iter.c:918 iov_iter_revert+0x2ee/0xaa0 lib/iov_iter.c:918
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 12533 Comm: syz-executor2 Not tainted 4.17.0+ #87
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1b9/0x294 lib/dump_stack.c:113
 panic+0x22f/0x4de kernel/panic.c:184
 __warn.cold.8+0x163/0x1b3 kernel/panic.c:536
 report_bug+0x252/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992
RIP: 0010:iov_iter_revert+0x2ee/0xaa0 lib/iov_iter.c:918
Code: 74 24 08 4d 89 7d 20 48 89 de 49 83 c7 01 4c 89 f7 e8 a6 b2 26 fe 49 39 de 72 b7 e8 ec b1 26 fe e9 3b ff ff ff e8 e2 b1 26 fe <0f> 0b e9 3a ff ff ff e8 d6 b1 26 fe 49 8d 7d 18 48 b8 00 00 00 00 
RSP: 0018:ffff8801b1f6f870 EFLAGS: 00010216
RAX: 0000000000040000 RBX: 00000000ffffffff RCX: ffffc90004ce7000
RDX: 000000000000035b RSI: ffffffff8352a6de RDI: 0000000000000007
RBP: ffff8801b1f6f8d0 R08: ffff8801829a2040 R09: ffffed003b5c46d6
R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
R13: ffff8801b1f6fc88 R14: 0000000000003fff R15: ffff8801becb2f00
 tls_sw_sendmsg+0xf34/0x12e0 net/tls/tls_sw.c:448
 inet_sendmsg+0x19f/0x690 net/ipv4/af_inet.c:798
 sock_sendmsg_nosec net/socket.c:633 [inline]
 sock_sendmsg+0xd5/0x120 net/socket.c:643
 __sys_sendto+0x3d7/0x670 net/socket.c:1814
 __do_sys_sendto net/socket.c:1826 [inline]
 __se_sys_sendto net/socket.c:1822 [inline]
 __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1822
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455a09
Code: 1d ba fb ff c3 66 2e 0f 1f 84 00 00 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 
RSP: 002b:00007f6ab1000c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f6ab10016d4 RCX: 0000000000455a09
RDX: 00000000fffffdef RSI: 00000000200005c0 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000020000000 R09: 000000000000001c
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000005d8 R14: 00000000006fdce0 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..