TITLE: WARNING in ip6_neigh_lookup
TYPE: WARNING
PANICKED: Y

[ 1471.274677][    C1] ------------[ cut here ]------------
[ 1471.278744][    C1] WARNING: CPU: 1 PID: 218 at kernel/softirq.c:175 __local_bh_enable_ip+0x18c/0x22c
[ 1471.286651][    C1] Modules linked in:
[ 1471.288499][    C1] Kernel panic - not syncing: panic_on_warn set ...
[ 1471.290704][    C1] CPU: 1 PID: 218 Comm: kworker/u4:5 Not tainted 5.10.0-rc1+ #20
[ 1471.291840][    C1] Hardware name: ARM-Versatile Express
[ 1471.294903][    C1] Workqueue: bat_events batadv_nc_worker
[ 1471.297089][    C1] Backtrace: 
[ 1471.298005][    C1] [<825afeb4>] (dump_backtrace) from [<825b0128>] (show_stack+0x18/0x1c)
[ 1471.299561][    C1]  r7:00000080 r6:60000193 r5:00000000 r4:83624124
[ 1471.301631][    C1] [<825b0110>] (show_stack) from [<825c0af0>] (dump_stack+0xa8/0xc8)
[ 1471.304040][    C1] [<825c0a48>] (dump_stack) from [<825b07c8>] (panic+0x134/0x378)
[ 1471.304479][    C1]  r7:82dfa380 r6:83465774 r5:00000000 r4:8382fb80
[ 1471.306392][    C1] [<825b0694>] (panic) from [<80136404>] (__warn+0xb0/0x150)
[ 1471.308437][    C1]  r3:8344ec8c r2:00000000 r1:830392e0 r0:82dfa380
[ 1471.310326][    C1]  r7:000000af
[ 1471.311306][    C1] [<80136354>] (__warn) from [<825b0a78>] (warn_slowpath_fmt+0x6c/0xd8)
[ 1471.313771][    C1]  r7:80140074 r6:000000af r5:82dfac00 r4:00000000
[ 1471.315979][    C1] [<825b0a10>] (warn_slowpath_fmt) from [<80140074>] (__local_bh_enable_ip+0x18c/0x22c)
[ 1471.318110][    C1]  r8:00005865 r7:83766244 r6:00000000 r5:8207ed00 r4:00000200
[ 1471.320345][    C1] [<8013fee8>] (__local_bh_enable_ip) from [<8207ed1c>] (ip6_neigh_lookup+0x12c/0x208)
[ 1471.322470][    C1]  r7:83766244 r6:8a6e1000 r5:8a6afa00 r4:8aa5b8c8
[ 1471.324560][    C1] [<8207ebf0>] (ip6_neigh_lookup) from [<8207ee3c>] (ip6_dst_neigh_lookup+0x44/0x48)
[ 1471.326970][    C1]  r7:8a6e1798 r6:00000000 r5:8a6e1000 r4:89c7c0c0
[ 1471.328659][    C1] [<8207edf8>] (ip6_dst_neigh_lookup) from [<81fe480c>] (ip_tunnel_xmit+0x654/0xcc0)
[ 1471.331005][    C1] [<81fe41b8>] (ip_tunnel_xmit) from [<81ff6634>] (__gre_xmit+0x110/0x17c)
[ 1471.332526][    C1]  r10:00000000 r9:00000004 r8:00005865 r7:8a6e1798 r6:8a6e1000 r5:89c7c0c0
[ 1471.334158][    C1]  r4:00000000
[ 1471.334719][    C1] [<81ff6524>] (__gre_xmit) from [<81ff67bc>] (gre_tap_xmit+0x11c/0x178)
[ 1471.337047][    C1]  r10:00000000 r9:0000006e r8:00000000 r7:8a6e1000 r6:8a6e1740 r5:8a6e1000
[ 1471.339656][    C1]  r4:89c7c0c0
[ 1471.340761][    C1] [<81ff66a0>] (gre_tap_xmit) from [<81d18f10>] (dev_hard_start_xmit+0x148/0x530)
[ 1471.342451][    C1]  r7:8a6e1000 r6:82924d9c r5:89c7c0c0 r4:84a8e000
[ 1471.343525][    C1] [<81d18dc8>] (dev_hard_start_xmit) from [<81d9a7bc>] (sch_direct_xmit+0x124/0x414)
[ 1471.344889][    C1]  r10:00000001 r9:00000001 r8:00000000 r7:8a6e1000 r6:8a1f1000 r5:89c7c0c0
[ 1471.345252][    C1]  r4:8aa61000
[ 1471.345538][    C1] [<81d9a698>] (sch_direct_xmit) from [<81d9ac48>] (__qdisc_run+0x19c/0x760)
[ 1471.345897][    C1]  r9:8344ec98 r8:84a8e000 r7:00000001 r6:89c7c0c0 r5:00000001 r4:8aa61000
[ 1471.346319][    C1] [<81d9aaac>] (__qdisc_run) from [<81d19a38>] (__dev_queue_xmit+0x66c/0xf78)
[ 1471.347846][    C1]  r10:83765936 r9:00000000 r8:8a1f1000 r7:81d1a358 r6:8aa61000 r5:00000000
[ 1471.349865][    C1]  r4:8aa610b4
[ 1471.350892][    C1] [<81d193cc>] (__dev_queue_xmit) from [<81d1a358>] (dev_queue_xmit+0x14/0x18)
[ 1471.351716][    C1]  r10:00000000 r9:00000001 r8:82060788 r7:8a6afb10 r6:00000000 r5:89c7c0c0
[ 1471.352106][    C1]  r4:8a6afa00
[ 1471.352492][    C1] [<81d1a344>] (dev_queue_xmit) from [<8205d148>] (ip6_finish_output2+0x224/0x9a0)
[ 1471.352942][    C1] [<8205cf24>] (ip6_finish_output2) from [<82060788>] (__ip6_finish_output+0x150/0x2fc)
[ 1471.353454][    C1]  r10:8a328000 r9:8a6e1000 r8:00000000 r7:00000060 r6:8a8aef80 r5:8a82ca00
[ 1471.353891][    C1]  r4:89c7c0c0
[ 1471.355032][    C1] [<82060638>] (__ip6_finish_output) from [<82060960>] (ip6_finish_output+0x2c/0xb0)
[ 1471.357797][    C1]  r9:8a6e1000 r8:8a6e1000 r7:8a82ca00 r6:8a8aef80 r5:89c7c0c0 r4:8a8aef80
[ 1471.360457][    C1] [<82060934>] (ip6_finish_output) from [<82060a58>] (ip6_output+0x74/0x294)
[ 1471.363104][    C1]  r7:8209f31c r6:8a8aef80 r5:8a82ca00 r4:89c7c0c0
[ 1471.365179][    C1] [<820609e4>] (ip6_output) from [<8209f31c>] (mld_sendpack+0x294/0x778)
[ 1471.366562][    C1]  r10:837662d2 r9:8a8aef80 r8:820a0288 r7:8a328000 r6:00000001 r5:8a82ca00
[ 1471.366958][    C1]  r4:89c7c0c0
[ 1471.367265][    C1] [<8209f088>] (mld_sendpack) from [<820a0288>] (mld_ifc_timer_expire+0x1e8/0x494)
[ 1471.367668][    C1]  r10:801eb404 r9:00000001 r8:8a2502a4 r7:8a328074 r6:00000000 r5:89c7c0c0
[ 1471.368034][    C1]  r4:00000000
[ 1471.368329][    C1] [<820a00a0>] (mld_ifc_timer_expire) from [<801eb4d8>] (call_timer_fn+0xd4/0x584)
[ 1471.368756][    C1]  r10:801eb404 r9:84a8fba8 r8:00000100 r7:820a00a0 r6:83764814 r5:8344ec98
[ 1471.369147][    C1]  r4:8a328074
[ 1471.369407][    C1] [<801eb404>] (call_timer_fn) from [<801ebc70>] (run_timer_softirq+0x2e8/0x388)
[ 1471.369793][    C1]  r10:0001c8e0 r9:820a00a0 r8:00000000 r7:00000000 r6:de5dca40 r5:84a8fc20
[ 1471.370165][    C1]  r4:8a328074
[ 1471.370496][    C1] [<801eb988>] (run_timer_softirq) from [<801013cc>] (__do_softirq+0x15c/0x7b0)
[ 1471.370907][    C1]  r10:00000202 r9:84a8e000 r8:8344ec98 r7:00000001 r6:00000001 r5:00000002
[ 1471.371286][    C1]  r4:83404084
[ 1471.371575][    C1] [<80101270>] (__do_softirq) from [<8013fd84>] (__irq_exit_rcu+0x1c4/0x1ec)
[ 1471.371973][    C1]  r10:84a8fd08 r9:84a8fd68 r8:00000001 r7:00000000 r6:833d441c r5:00000000
[ 1471.372381][    C1]  r4:833d5b00
[ 1471.372669][    C1] [<8013fbc0>] (__irq_exit_rcu) from [<80140230>] (irq_exit+0x10/0x3c)
[ 1471.373056][    C1]  r5:00000000 r4:833d441c
[ 1471.373369][    C1] [<80140220>] (irq_exit) from [<801c5840>] (__handle_domain_irq+0xb4/0x120)
[ 1471.373780][    C1] [<801c578c>] (__handle_domain_irq) from [<80ebd0fc>] (gic_handle_irq+0x74/0x88)
[ 1471.374199][    C1]  r10:00000000 r9:84a8e000 r8:e000200c r7:833d4440 r6:e0002000 r5:84a8fd68
[ 1471.382534][    C1]  r4:8344f53c
[ 1471.382893][    C1] [<80ebd088>] (gic_handle_irq) from [<80100b30>] (__irq_svc+0x70/0xb0)
[ 1471.384144][    C1] Exception stack(0x84a8fd68 to 0x84a8fdb0)
[ 1471.384835][    C1] fd60:                   00000001 82df5360 5b20f000 00000000 84a8fdb8 833c9680
[ 1471.385496][    C1] fd80: 833c9680 83535e9c 60000113 00000000 00000000 84a8fe34 84a8fda8 84a8fdb8
[ 1471.386046][    C1] fda0: 825e31d8 801ae194 60000113 ffffffff
[ 1471.386491][    C1]  r9:84a8e000 r8:60000113 r7:84a8fd9c r6:ffffffff r5:60000113 r4:801ae194
[ 1471.386925][    C1] [<801ae088>] (lock_acquire.part.0) from [<801ae5a4>] (lock_acquire+0x6c/0x74)
[ 1471.387365][    C1]  r10:82525dcc r9:00000000 r8:00000000 r7:00000002 r6:00000000 r5:00000000
[ 1471.387757][    C1]  r4:83535e9c
[ 1471.388050][    C1] [<801ae538>] (lock_acquire) from [<82525dfc>] (batadv_nc_worker+0xc8/0x470)
[ 1471.388497][    C1]  r10:00000088 r9:8376475b r8:8a346d2c r7:88a2c000 r6:83406d00 r5:8a347000
[ 1471.388867][    C1]  r4:00000000
[ 1471.389157][    C1] [<82525d34>] (batadv_nc_worker) from [<8015b888>] (process_one_work+0x2b8/0x984)
[ 1471.389571][    C1]  r10:00000088 r9:8376475b r8:8344ec98 r7:88a2c000 r6:84820000 r5:849e4900
[ 1471.389952][    C1]  r4:8a346d2c
[ 1471.390220][    C1] [<8015b5d0>] (process_one_work) from [<8015bfb8>] (worker_thread+0x64/0x54c)
[ 1471.390611][    C1]  r10:00000088 r9:84a8e000 r8:83406d00 r7:84820038 r6:849e4914 r5:84820000
[ 1471.390988][    C1]  r4:849e4900
[ 1471.391297][    C1] [<8015bf54>] (worker_thread) from [<80164018>] (kthread+0x184/0x1a4)
[ 1471.391700][    C1]  r10:84a97e64 r9:849e4900 r8:8015bf54 r7:00000000 r6:84a8e000 r5:84a01000
[ 1471.392080][    C1]  r4:84992580
[ 1471.392381][    C1] [<80163e94>] (kthread) from [<8010011c>] (ret_from_fork+0x14/0x38)
[ 1471.392744][    C1] Exception stack(0x84a8ffb0 to 0x84a8fff8)
[ 1471.393201][    C1] ffa0:                                     00000000 00000000 00000000 00000000
[ 1471.411802][    C1] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 1471.412497][    C1] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 1471.412977][    C1]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80163e94
[ 1471.413363][    C1]  r4:84a01000
[ 1471.428360][    C0] CPU0: stopping
[ 1471.429368][    C0] CPU: 0 PID: 7067 Comm: syz-executor.1 Not tainted 5.10.0-rc1+ #20
[ 1471.429769][    C0] Hardware name: ARM-Versatile Express
[ 1471.430093][    C0] Backtrace: 
[ 1471.430476][    C0] [<825afeb4>] (dump_backtrace) from [<825b0128>] (show_stack+0x18/0x1c)
[ 1471.430850][    C0]  r7:00000080 r6:60000193 r5:00000000 r4:83624124
[ 1471.431184][    C0] [<825b0110>] (show_stack) from [<825c0af0>] (dump_stack+0xa8/0xc8)
[ 1471.431574][    C0] [<825c0a48>] (dump_stack) from [<80111144>] (do_handle_IPI+0x420/0x44c)
[ 1471.431947][    C0]  r7:8344f53c r6:8480cc40 r5:00000000 r4:00000004
[ 1471.432302][    C0] [<80110d24>] (do_handle_IPI) from [<80111190>] (ipi_handler+0x20/0x28)
[ 1471.432677][    C0]  r9:8a191b88 r8:8a191b00 r7:8344f53c r6:8480cc40 r5:00000014 r4:848c8000
[ 1471.433065][    C0] [<80111170>] (ipi_handler) from [<801cc904>] (handle_percpu_devid_fasteoi_ipi+0x9c/0xb0)
[ 1471.433508][    C0] [<801cc868>] (handle_percpu_devid_fasteoi_ipi) from [<801c583c>] (__handle_domain_irq+0xb0/0x120)
[ 1471.433929][    C0]  r9:8a191b88 r8:00000001 r7:00000000 r6:833d441c r5:00000000 r4:833d441c
[ 1471.434312][    C0] [<801c578c>] (__handle_domain_irq) from [<80ebd0fc>] (gic_handle_irq+0x74/0x88)
[ 1471.434708][    C0]  r10:00000000 r9:8a190000 r8:e000200c r7:833d4440 r6:e0002000 r5:8a191b88
[ 1471.435062][    C0]  r4:8344f53c
[ 1471.435312][    C0] [<80ebd088>] (gic_handle_irq) from [<80100b30>] (__irq_svc+0x70/0xb0)
[ 1471.435664][    C0] Exception stack(0x8a191b88 to 0x8a191bd0)
[ 1471.436162][    C0] 1b80:                   00000001 8306db7c 00000003 00000200 00000000 0001f7e8
[ 1471.436840][    C0] 1ba0: 0001c8f0 51eb851f 89270424 8a0d4000 00000000 8a191be4 8a191ba8 8a191bd8
[ 1471.437403][    C0] 1bc0: 825e31b8 801d4ba0 20000013 ffffffff
[ 1471.437775][    C0]  r9:8a190000 r8:89270424 r7:8a191bbc r6:ffffffff r5:20000013 r4:801d4ba0
[ 1471.438161][    C0] [<801d4b70>] (rcu_read_lock_bh_held) from [<8206e1d0>] (addrconf_verify_rtnl+0x600/0x948)
[ 1471.438552][    C0] [<8206dbd0>] (addrconf_verify_rtnl) from [<8206eb68>] (inet6_addr_add+0x188/0x2d4)
[ 1471.438921][    C0]  r10:00000000 r9:8a0d4000 r8:8a82ca00 r7:00000021 r6:89dbf800 r5:89275e00
[ 1471.439262][    C0]  r4:8a191cb0
[ 1471.443994][    C0] [<8206e9e0>] (inet6_addr_add) from [<82070638>] (inet6_rtm_newaddr+0x260/0x6f8)
[ 1471.444440][    C0]  r10:00000000 r9:0000000a r8:8aa79a18 r7:8a82ca00 r6:8a191d98 r5:8aa79a00
[ 1471.444796][    C0]  r4:00000000
[ 1471.445075][    C0] [<820703d8>] (inet6_rtm_newaddr) from [<81d3231c>] (rtnetlink_rcv_msg+0x190/0x4a8)
[ 1471.445479][    C0]  r10:00000000 r9:0000000a r8:8a191d98 r7:8a8d56c0 r6:837659aa r5:00000004
[ 1471.445859][    C0]  r4:8aa79a00
[ 1471.446134][    C0] [<81d3218c>] (rtnetlink_rcv_msg) from [<81e28b98>] (netlink_rcv_skb+0xc8/0x12c)
[ 1471.446538][    C0]  r10:00000000 r9:8a25c24c r8:00000000 r7:00000040 r6:8aa79a00 r5:81d3218c
[ 1471.446907][    C0]  r4:8a8d56c0
[ 1471.447180][    C0] [<81e28ad0>] (netlink_rcv_skb) from [<81d2f4ec>] (rtnetlink_rcv+0x18/0x1c)
[ 1471.447560][    C0]  r7:8a8d56c0 r6:8a25c000 r5:00000040 r4:8a6c7000
[ 1471.447896][    C0] [<81d2f4d4>] (rtnetlink_rcv) from [<81e2822c>] (netlink_unicast+0x1b8/0x27c)
[ 1471.448309][    C0] [<81e28074>] (netlink_unicast) from [<81e2851c>] (netlink_sendmsg+0x22c/0x47c)
[ 1471.448692][    C0]  r9:00000000 r8:8a25c000 r7:00000040 r6:8a8d56c0 r5:8a191eb8 r4:8aa79a00
[ 1471.449070][    C0] [<81e282f0>] (netlink_sendmsg) from [<81ce7a00>] (sock_sendmsg+0x3c/0x4c)
[ 1471.449447][    C0]  r10:00000122 r9:8a190000 r8:80100244 r7:00000000 r6:7e8d85e4 r5:89a53740
[ 1471.449812][    C0]  r4:8a191eb8
[ 1471.450073][    C0] [<81ce79c4>] (sock_sendmsg) from [<81cea5d0>] (__sys_sendto+0xd0/0x11c)
[ 1471.450416][    C0]  r5:89a53740 r4:00000000
[ 1471.450693][    C0] [<81cea500>] (__sys_sendto) from [<81cea638>] (sys_sendto+0x1c/0x24)
[ 1471.451048][    C0]  r7:00000122 r6:01044218 r5:0000000c r4:7e8d85e4
[ 1471.451426][    C0] [<81cea61c>] (sys_sendto) from [<80100060>] (ret_fast_syscall+0x0/0x2c)
[ 1471.451854][    C0] Exception stack(0x8a191fa8 to 0x8a191ff0)
[ 1471.452412][    C0] 1fa0:                   7e8d85e4 0000000c 00000003 01044218 00000040 00000000
[ 1471.453095][    C0] 1fc0: 7e8d85e4 0000000c 01044218 00000122 00000000 00000003 00000000 00000003
[ 1471.453650][    C0] 1fe0: 00000001 7e8d85c0 000273f0 00027a88
[ 1471.460316][    C1] Dumping ftrace buffer:
[ 1471.462708][    C1]    (ftrace buffer empty)
[ 1471.464074][    C1] Rebooting in 86400 seconds..
