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BUG: KMSAN: uninit-value in bond_neigh_setup+0xa4/0x110 drivers/net/bonding/bond_main.c:3745
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x220 lib/dump_stack.c:118
 kmsan_report+0xf8/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215
 bond_neigh_setup+0xa4/0x110 drivers/net/bonding/bond_main.c:3745
 bond_neigh_init+0x216/0x4b0 drivers/net/bonding/bond_main.c:3716
 ___neigh_create+0x15f1/0x2e20 net/core/neighbour.c:613
 __neigh_create+0xbd/0xd0 net/core/neighbour.c:674
 ip6_finish_output2+0x149a/0x2670 net/ipv6/ip6_output.c:113
 __ip6_finish_output+0x83d/0x8f0 net/ipv6/ip6_output.c:142
 ip6_finish_output+0x2db/0x420 net/ipv6/ip6_output.c:152
 NF_HOOK_COND include/linux/netfilter.h:296 [inline]
 ip6_output+0x60a/0x770 net/ipv6/ip6_output.c:175
 dst_output include/net/dst.h:436 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 mld_sendpack+0xebd/0x13d0 net/ipv6/mcast.c:1682
 mld_send_cr net/ipv6/mcast.c:1978 [inline]
 mld_ifc_timer_expire+0x1181/0x1790 net/ipv6/mcast.c:2477
 call_timer_fn+0x232/0x530 kernel/time/timer.c:1404
 expire_timers kernel/time/timer.c:1449 [inline]
 __run_timers+0xd60/0x1270 kernel/time/timer.c:1773
 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1786
 __do_softirq+0x4a1/0x83a kernel/softirq.c:293
 invoke_softirq kernel/softirq.c:375 [inline]
 irq_exit+0x230/0x280 kernel/softirq.c:416
 exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:536
 smp_apic_timer_interrupt+0x48/0x70 arch/x86/kernel/apic/apic.c:1140
 apic_timer_interrupt+0x2e/0x40 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:default_idle+0x53/0x90 arch/x86/kernel/process.c:700
Code: 53 f9 d6 f2 44 8b 35 44 50 db 01 48 c7 c7 38 f7 25 9a e8 e0 42 a2 f3 83 38 00 75 31 45 85 f6 7e 07 0f 00 2d 57 ba 56 00 fb f4 <65> 8b 35 26 2c b8 67 c7 03 00 00 00 00 c7 43 08 00 00 00 00 bf ff
RSP: 0018:ffff9d3840dffdf8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff90cef8052738 RBX: ffff90ce2d0c89d0 RCX: ffffc7e10a281db0
RDX: ffff90cee8045738 RSI: 0000000000000000 RDI: ffffffff9a25f738
RBP: ffff9d3840dffe08 R08: ffffc7e10000000f R09: ffff90ce2fffb000
R10: 0000000000000004 R11: ffffffff984aa6c0 R12: ffff90ce2d0c8000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff90ce2d0c89d0
 arch_cpu_idle+0x25/0x30 arch/x86/kernel/process.c:690
 default_idle_call kernel/sched/idle.c:94 [inline]
 cpuidle_idle_call kernel/sched/idle.c:154 [inline]
 do_idle+0x1db/0x7d0 kernel/sched/idle.c:269
 cpu_startup_entry+0x45/0x50 kernel/sched/idle.c:361
 start_secondary+0x389/0x480 arch/x86/kernel/smpboot.c:264
 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:242

Local variable ----parms@bond_neigh_init created at:
 bond_neigh_init+0x8c/0x4b0 drivers/net/bonding/bond_main.c:3707
 bond_neigh_init+0x8c/0x4b0 drivers/net/bonding/bond_main.c:3707
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