binder: 7100:7101 got reply transaction with no transaction stack
binder: 7100:7101 transaction reply to 0:0 failed 2/29201/-71, size 0-0 line 2946
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 7101 Comm: syz.6.396 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1b40/0x6544 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
 _raw_spin_lock_bh+0x54/0x6c kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 rt_add_uncached_list net/ipv4/route.c:1542 [inline]
 rt_set_nexthop+0x170/0x8bc net/ipv4/route.c:1646
 __mkroute_output net/ipv4/route.c:2654 [inline]
 ip_route_output_key_hash_rcu+0x13c4/0x1e3c net/ipv4/route.c:2850
 ip_route_output_key_hash+0x1a8/0x2ec net/ipv4/route.c:2679
 __ip_route_output_key include/net/route.h:137 [inline]
 ip_route_output_flow+0x3c/0x160 net/ipv4/route.c:2909
 ip_route_output_ports include/net/route.h:180 [inline]
 ipip6_tunnel_bind_dev+0x190/0x4ec net/ipv6/sit.c:1108
 ipip6_tunnel_init+0xd4/0x588 net/ipv6/sit.c:1451
 register_netdevice+0x488/0x15cc net/core/dev.c:10130
 ipip6_tunnel_create+0x130/0x330 net/ipv6/sit.c:215
 ipip6_tunnel_locate+0x454/0x63c net/ipv6/sit.c:271
 ipip6_tunnel_add net/ipv6/sit.c:1293 [inline]
 ipip6_tunnel_ctl+0x5a0/0x864 net/ipv6/sit.c:1357
 ip_tunnel_siocdevprivate+0x1bc/0x364 net/ipv4/ip_tunnel.c:1003
 ipip6_tunnel_siocdevprivate+0x240/0x182c net/ipv6/sit.c:1376
 dev_siocdevprivate net/core/dev_ioctl.c:287 [inline]
 dev_ifsioc+0xa68/0xed0 net/core/dev_ioctl.c:406
 dev_ioctl+0x548/0xc8c net/core/dev_ioctl.c:613
 sock_ioctl+0x7a4/0x840 net/socket.c:1248
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
netlink: 'syz.6.396': attribute type 4 has an invalid length.