WARNING: CPU: 0 PID: 8143 at net/strparser/strparser.c:532 strp_done+0xb7/0xe0 net/strparser/strparser.c:532
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 8143 Comm: syzkaller189484 Not tainted 4.15.0+ #221
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 panic+0x1e4/0x41c kernel/panic.c:183
 __warn+0x1dc/0x200 kernel/panic.c:547
 report_bug+0x211/0x2d0 lib/bug.c:184
 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178
 fixup_bug arch/x86/kernel/traps.c:247 [inline]
 do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315
 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1097
RIP: 0010:strp_done+0xb7/0xe0 net/strparser/strparser.c:532
RSP: 0018:ffff8801b87678c0 EFLAGS: 00010293
RAX: ffff8801b4434680 RBX: ffff8801b4448c08 RCX: ffffffff85156eb7
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801b4448c10
RBP: ffff8801b87678d8 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801cd8e9ac0
R13: ffffc900012b7000 R14: ffff8801c95f8a80 R15: ffff8801b8767ad8
 kcm_attach net/kcm/kcmsock.c:1420 [inline]
 kcm_attach_ioctl net/kcm/kcmsock.c:1477 [inline]
 kcm_ioctl+0x139a/0x17f0 net/kcm/kcmsock.c:1682
 sock_do_ioctl+0xef/0x390 net/socket.c:958
 sock_ioctl+0x36b/0x610 net/socket.c:1081
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0x1b1/0x1520 fs/ioctl.c:686
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 entry_SYSCALL_64_fastpath+0x29/0xa0
RIP: 0033:0x44def9
RSP: 002b:00007fd29f1ffcc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000700054 RCX: 000000000044def9
RDX: 000000002031aff8 RSI: 00000000000089e0 RDI: 0000000000000008
RBP: 0000000000700050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000080f40f R14: 00007fd29f2009c0 R15: 0000000000000008
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..