ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::a8aa:aaff:feaa:aa1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::a8aa:aaff:feaa:aa1c on veth1_to_bridge! rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5238/2:b..l rcu: (detected by 0, t=10503 jiffies, g=5737, q=1932 ncpus=2) task:syz-executor286 state:R running task stack:19408 pid:5238 tgid:5238 ppid:5236 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x185a/0x4b70 kernel/sched/core.c:6690 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7012 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:trace_lock_release include/trace/events/lock.h:69 [inline] RIP: 0010:lock_release+0xb8/0xa30 kernel/locking/lockdep.c:5836 Code: 08 0f 83 fe 05 00 00 89 c3 48 89 d8 48 c1 e8 06 48 8d 3c c5 a8 d2 1b 90 be 08 00 00 00 e8 b0 0e 8b 00 48 0f a3 1d 90 65 ab 0e <73> 16 e8 41 58 0a 00 84 c0 75 0d 80 3d 16 28 95 0e 00 0f 84 fc 05 RSP: 0018:ffffc90003c2f540 EFLAGS: 00000257 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff81706d10 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901bd2a8 RBP: ffffc90003c2f678 R08: ffffffff901bd2af R09: 1ffffffff2037a55 R10: dffffc0000000000 R11: fffffbfff2037a56 R12: 1ffff92000785eb4 R13: ffffffff81a3e356 R14: 0000000000000000 R15: dffffc0000000000 rcu_lock_release include/linux/rcupdate.h:347 [inline] rcu_read_unlock include/linux/rcupdate.h:880 [inline] is_bpf_text_address+0x280/0x2a0 kernel/bpf/core.c:769 kernel_text_address+0xa7/0xe0 kernel/extable.c:125 __kernel_text_address+0xd/0x40 kernel/extable.c:79 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:369 arch_stack_walk+0xfd/0x150 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 save_stack+0xfb/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x76/0x430 mm/page_owner.c:297 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcd0/0xf00 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4141 getname_flags+0xb7/0x540 fs/namei.c:139 vfs_fstatat+0x12c/0x190 fs/stat.c:340 __do_sys_newfstatat fs/stat.c:505 [inline] __se_sys_newfstatat fs/stat.c:499 [inline] __x64_sys_newfstatat+0x11d/0x1a0 fs/stat.c:499 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: 0033:0x7ff2706794ba RSP: 002b:00007ffe6eb78c28 EFLAGS: 00000286 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff2706794ba RDX: 00007ffe6eb78c50 RSI: 00007ffe6eb78ce0 RDI: 00000000ffffff9c RBP: 00007ffe6eb78ce0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000286 R12: 00007ffe6eb79d50 R13: 00005555758ec7c0 R14: 00007ffe6eb79d90 R15: 0000000000000001 rcu: rcu_preempt kthread starved for 2216 jiffies! g5737 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:24432 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x185a/0x4b70 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6782 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2615 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__kernel_text_address+0x29/0x40 kernel/extable.c:79 Code: 90 66 0f 1f 00 53 48 89 fb e8 43 00 00 00 85 c0 0f 95 c0 48 c7 c1 00 d0 79 91 48 39 cb 0f 93 c1 48 c7 c2 4f 8f 94 91 48 39 d3 <0f> 92 c2 20 ca 08 c2 0f b6 c2 5b c3 cc cc cc cc 0f 1f 80 00 00 00 RSP: 0018:ffffc900001e6130 EFLAGS: 00000293 RAX: 0000000000000001 RBX: ffffffff81607df0 RCX: ffffffff9179d000 RDX: ffffffff91948f4f RSI: ffffc900001e0000 RDI: ffffffff81607df0 RBP: ffffc900001e61f0 R08: ffffc900001e7ed0 R09: 0000000000000000 R10: ffffc900001e61b0 R11: fffff5200003cc38 R12: ffff88801d2f8000 R13: ffffffff81809070 R14: dffffc0000000000 R15: 1ffff9200003cc35 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555758ebda8 CR3: 000000002617a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:369 arch_stack_walk+0xfd/0x150 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:2342 [inline] slab_free mm/slub.c:4579 [inline] kmem_cache_free+0x1a2/0x420 mm/slub.c:4681 icmpv6_rcv+0x11e9/0x1980 ip6_protocol_deliver_rcu+0x105b/0x1580 net/ipv6/ip6_input.c:436 ip6_input_finish+0x187/0x2d0 net/ipv6/ip6_input.c:481 NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314 ip6_input net/ipv6/ip6_input.c:490 [inline] ip6_mc_input+0x9c5/0xc30 net/ipv6/ip6_input.c:584 ip_sabotage_in+0x203/0x290 net/bridge/br_netfilter_hooks.c:1018 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626 nf_hook include/linux/netfilter.h:269 [inline] NF_HOOK+0x29e/0x450 include/linux/netfilter.h:312 __netif_receive_skb_one_core net/core/dev.c:5666 [inline] __netif_receive_skb+0x1ea/0x650 net/core/dev.c:5779 netif_receive_skb_internal net/core/dev.c:5865 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5924 NF_HOOK+0x9e/0x400 include/linux/netfilter.h:314 br_handle_frame_finish+0x18ed/0x1fe0 br_nf_hook_thresh+0x472/0x590 br_nf_pre_routing_finish_ipv6+0xaa0/0xdd0 NF_HOOK include/linux/netfilter.h:314 [inline] br_nf_pre_routing_ipv6+0x379/0x770 net/bridge/br_netfilter_ipv6.c:184 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_bridge_pre net/bridge/br_input.c:277 [inline] br_handle_frame+0x9fd/0x1530 net/bridge/br_input.c:424 __netif_receive_skb_core+0x13e8/0x4570 net/core/dev.c:5560 __netif_receive_skb_one_core net/core/dev.c:5664 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5779 process_backlog+0x662/0x15b0 net/core/dev.c:6111 __napi_poll+0xcb/0x490 net/core/dev.c:6775 napi_poll net/core/dev.c:6844 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:6966 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 run_ksoftirqd+0xca/0x130 kernel/softirq.c:927 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 3.176 msecs net_ratelimit: 33711 callbacks suppressed ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::a8aa:aaff:feaa:aa1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::a8aa:aaff:feaa:aa1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::a8aa:aaff:feaa:aa1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::a8aa:aaff:feaa:aa1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::a8aa:aaff:feaa:aa1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::1c on veth1_to_bridge! net_ratelimit: 32747 callbacks suppressed ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::a8aa:aaff:feaa:aa1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::a8aa:aaff:feaa:aa1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::a8aa:aaff:feaa:aa1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::a8aa:aaff:feaa:aa1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::a8aa:aaff:feaa:aa1c on veth1_to_bridge! ICMPv6: NA: aa:aa:aa:aa:aa:1c advertised our address fe80::1c on veth1_to_bridge!