batman_adv: batadv0: Removing interface: batadv_slave_0
batman_adv: batadv0: Interface deactivated: batadv_slave_1
batman_adv: batadv0: Removing interface: batadv_slave_1
------------[ cut here ]------------
WARNING: CPU: 1 PID: 20690 at net/ipv6/route.c:4765 rt6_multipath_rebalance+0x433/0x880 net/ipv6/route.c:4765
Modules linked in:
CPU: 1 UID: 0 PID: 20690 Comm: syz.3.4164 Not tainted 6.14.0-rc5-syzkaller-00129-g505ead7ab77f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:rt6_multipath_rebalance+0x433/0x880 net/ipv6/route.c:4765
Code: fe ff ff 89 e9 80 e1 07 38 c1 0f 8c 8a fe ff ff 48 89 ef e8 3f 47 83 f7 e9 7d fe ff ff e8 75 0c 1c f7 eb 05 e8 6e 0c 1c f7 90 <0f> 0b 90 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc
RSP: 0018:ffffc90003f2e698 EFLAGS: 00010246
RAX: ffffffff8aa5c23b RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc90005114000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffff888025d2bcce R08: ffffffff8aa5c11c R09: fffff520007e5ccc
R10: dffffc0000000000 R11: fffff520007e5ccc R12: 0000000000000000
R13: ffff888079802090 R14: ffff888079802000 R15: 1ffff1100f300412
FS:  00007f80fdc7e6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2ddb1f5f98 CR3: 0000000044dde000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 fib6_ifup+0x148/0x180 net/ipv6/route.c:4781
 fib6_clean_node+0x2ae/0x5e0 net/ipv6/ip6_fib.c:2199
 fib6_walk_continue+0x658/0x8f0 net/ipv6/ip6_fib.c:2124
 fib6_walk+0x168/0x2b0 net/ipv6/ip6_fib.c:2172
 fib6_clean_tree net/ipv6/ip6_fib.c:2252 [inline]
 __fib6_clean_all+0x31f/0x4b0 net/ipv6/ip6_fib.c:2268
 rt6_sync_up+0x186/0x200 net/ipv6/route.c:4799
 addrconf_notify+0xd66/0x1020 net/ipv6/addrconf.c:3724
 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
 netdev_state_change+0x11f/0x1a0 net/core/dev.c:1537
 do_setlink+0x829/0x4300 net/core/rtnetlink.c:3365
 rtnl_group_changelink net/core/rtnetlink.c:3747 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3894 [inline]
 rtnl_newlink+0x156d/0x1d30 net/core/rtnetlink.c:4022
 rtnetlink_rcv_msg+0x791/0xcf0 net/core/rtnetlink.c:6912
 netlink_rcv_skb+0x206/0x480 net/netlink/af_netlink.c:2533
 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1338
 netlink_sendmsg+0x8de/0xcb0 net/netlink/af_netlink.c:1882
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:733
 ____sys_sendmsg+0x53a/0x860 net/socket.c:2573
 ___sys_sendmsg net/socket.c:2627 [inline]
 __sys_sendmsg+0x269/0x350 net/socket.c:2659
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f80fcd8d169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f80fdc7e038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f80fcfa5fa0 RCX: 00007f80fcd8d169
RDX: 0000000000000000 RSI: 0000400000000140 RDI: 0000000000000005
RBP: 00007f80fce0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f80fcfa5fa0 R15: 00007ffd5b56a6d8
 </TASK>