protocol 88fb is buggy, dev hsr_slave_1
device hsr_slave_1 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready
chnl_net:caif_netlink_parms(): no params data found
netlink: 'syz-executor.1': attribute type 2 has an invalid length.
WARNING: CPU: 1 PID: 6599 at mm/slab_common.c:971 kmalloc_slab+0x5d/0x70 mm/slab_common.c:971
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 6599 Comm: syz-executor.1 Not tainted 4.15.0-rc2+ #0
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+0x145/0x1e1 lib/dump_stack.c:53
 panic+0x1a9/0x34e kernel/panic.c:183
 __warn.cold.8+0x120/0x156 kernel/panic.c:547
 report_bug+0x1a3/0x230 lib/bug.c:184
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 do_error_trap+0x1bd/0x460 arch/x86/kernel/traps.c:295
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x18/0x20 arch/x86/entry/entry_64.S:930
RIP: 0010:kmalloc_slab+0x5d/0x70 mm/slab_common.c:971
RSP: 0018:ffff8800a6fcecc8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff10014df9dc5 RCX: 0000000000000000
RDX: 1ffff100149ee424 RSI: 0000000000000000 RDI: 0000000054abf000
RBP: ffff8800a6fcecc8 R08: ffff8800923149a8 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8800923140c0 R12: ffff8800a6fceec8
R13: ffff8800a4f72180 R14: ffff8800a4f72100 R15: 00000000014080c0
 __do_kmalloc mm/slab.c:3706 [inline]
 __kmalloc+0x25/0x7b0 mm/slab.c:3720
 kmalloc_array include/linux/slab.h:618 [inline]
 kcalloc include/linux/slab.h:629 [inline]
 tcindex_alloc_perfect_hash+0x4f/0x2e0 net/sched/cls_tcindex.c:302
 tcindex_set_parms+0x1353/0x1d60 net/sched/cls_tcindex.c:429
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
 tcindex_change+0x1b7/0x24e net/sched/cls_tcindex.c:542
 tc_ctl_tfilter+0x15bc/0x2250 net/sched/cls_api.c:919
 rtnetlink_rcv_msg+0x50e/0xed0 net/core/rtnetlink.c:4411
 netlink_rcv_skb+0x211/0x490 net/netlink/af_netlink.c:2405
 rtnetlink_rcv+0x10/0x20 net/core/rtnetlink.c:4423
 netlink_unicast_kernel net/netlink/af_netlink.c:1272 [inline]
 netlink_unicast+0x426/0x630 net/netlink/af_netlink.c:1298
 netlink_sendmsg+0x8c3/0xe80 net/netlink/af_netlink.c:1861
 sock_sendmsg_nosec net/socket.c:636 [inline]
 sock_sendmsg+0xb5/0xf0 net/socket.c:646
 ___sys_sendmsg+0x2ad/0x9a0 net/socket.c:2026
 __sys_sendmmsg+0x1ae/0x590 net/socket.c:2116
 SYSC_sendmmsg net/socket.c:2147 [inline]
 SyS_sendmmsg+0xd/0x20 net/socket.c:2142
 entry_SYSCALL_64_fastpath+0x23/0x9a
RIP: 0033:0x459a29
RSP: 002b:00007f851d4a7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f851d4a8700 RCX: 0000000000459a29
RDX: 0000000000000332 RSI: 0000000020000140 RDI: 0000000000000008
RBP: 00007fffe9ffeea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffe9ffed3f R14: 00007f851d4a89c0 R15: 000000000075c07c
Kernel Offset: disabled
Rebooting in 86400 seconds..