=====================================================
BUG: KMSAN: uninit-value in percpu_array_map_lookup_elem+0x142/0x160 kernel/bpf/arraymap.c:243
 percpu_array_map_lookup_elem+0x142/0x160 kernel/bpf/arraymap.c:243
 ____bpf_map_lookup_elem kernel/bpf/helpers.c:42 [inline]
 bpf_map_lookup_elem+0x5c/0x80 kernel/bpf/helpers.c:38
 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997
 __bpf_prog_run32+0xb2/0xe0 kernel/bpf/core.c:2236
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run10+0x1f4/0x3e0 kernel/trace/bpf_trace.c:2428
 __bpf_trace_percpu_alloc_percpu+0x56/0x70 include/trace/events/percpu.h:11
 trace_percpu_alloc_percpu include/trace/events/percpu.h:11 [inline]
 pcpu_alloc+0x37dd/0x3ad0 mm/percpu.c:1878
 __alloc_percpu_gfp+0x40/0x50 mm/percpu.c:1930
 fib_nh_common_init+0x54/0x5d0 net/ipv4/fib_semantics.c:591
 fib6_nh_init+0x2583/0x30a0 net/ipv6/route.c:3620
 ip6_route_info_create+0x145b/0x20a0 net/ipv6/route.c:3807
 ip6_route_add+0x48/0x370 net/ipv6/route.c:3851
 addrconf_prefix_route net/ipv6/addrconf.c:2483 [inline]
 add_v4_addrs+0x107f/0x12c0 net/ipv6/addrconf.c:3266
 addrconf_gre_config net/ipv6/addrconf.c:3541 [inline]
 addrconf_init_auto_addrs+0x96b/0x10a0 net/ipv6/addrconf.c:3559
 addrconf_notify+0x15ba/0x1c40 net/ipv6/addrconf.c:3740
 notifier_call_chain kernel/notifier.c:93 [inline]
 raw_notifier_call_chain+0xe8/0x440 kernel/notifier.c:461
 call_netdevice_notifiers_info+0x1be/0x2b0 net/core/dev.c:1950
 __dev_notify_flags+0x217/0x3b0
 dev_change_flags+0x168/0x1d0 net/core/dev.c:8760
 do_setlink+0x16d1/0x7010 net/core/rtnetlink.c:2884
 __rtnl_newlink net/core/rtnetlink.c:3680 [inline]
 rtnl_newlink+0x329c/0x41f0 net/core/rtnetlink.c:3727
 rtnetlink_rcv_msg+0x1737/0x1900 net/core/rtnetlink.c:6595
 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2559
 rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6613
 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]
 netlink_unicast+0xf4c/0x1260 net/netlink/af_netlink.c:1361
 netlink_sendmsg+0x10df/0x11f0 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x30f/0x380 net/socket.c:745
 __sys_sendto+0x685/0x830 net/socket.c:2191
 __do_compat_sys_socketcall net/compat.c:475 [inline]
 __se_compat_sys_socketcall+0xceb/0x1a20 net/compat.c:423
 __ia32_compat_sys_socketcall+0x6b/0xa0 net/compat.c:423
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xba/0x120 arch/x86/entry/common.c:321
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:346
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:384
 entry_SYSENTER_compat_after_hwframe+0x7a/0x84

Local variable stack created at:
 __bpf_prog_run32+0x43/0xe0 kernel/bpf/core.c:2236
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run10+0x1f4/0x3e0 kernel/trace/bpf_trace.c:2428

CPU: 1 PID: 7537 Comm: syz-executor.4 Not tainted 6.8.0-syzkaller-11339-g741e9d668aa5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
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