bridge0: received packet on veth0_to_bridge with own address as source address (addr:0a:67:c8:3c:65:45, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8151/2:b..l rcu: (detected by 1, t=10503 jiffies, g=19913, q=727 ncpus=2) task:dhcpcd-run-hook state:R running task stack:22784 pid:8151 tgid:8151 ppid:5500 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078 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:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5853 Code: 2b 00 74 08 4c 89 f7 e8 2a 23 8b 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25 RSP: 0018:ffffc9000c8a7540 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff92001914eb4 RCX: ffff88803078c6d8 RDX: dffffc0000000000 RSI: ffffffff8c0aa960 RDI: ffffffff8c5faee0 RBP: ffffc9000c8a7690 R08: ffffffff942a4887 R09: 1ffffffff2854910 R10: dffffc0000000000 R11: fffffbfff2854911 R12: 1ffff92001914eb0 R13: dffffc0000000000 R14: ffffc9000c8a75a0 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:337 [inline] rcu_read_lock include/linux/rcupdate.h:849 [inline] is_bpf_text_address+0x46/0x2a0 kernel/bpf/core.c:772 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:1127 [inline] free_unref_page+0xd3f/0x1010 mm/page_alloc.c:2657 discard_slab mm/slub.c:2688 [inline] __put_partials+0x160/0x1c0 mm/slub.c:3157 put_cpu_partial+0x17c/0x250 mm/slub.c:3232 __slab_free+0x290/0x380 mm/slub.c:4483 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:250 [inline] slab_post_alloc_hook mm/slub.c:4119 [inline] slab_alloc_node mm/slub.c:4168 [inline] __do_kmalloc_node mm/slub.c:4297 [inline] __kmalloc_noprof+0x236/0x4c0 mm/slub.c:4310 kmalloc_noprof include/linux/slab.h:905 [inline] kmalloc_array_noprof include/linux/slab.h:946 [inline] alloc_pipe_info+0x1ff/0x4d0 fs/pipe.c:815 get_pipe_inode fs/pipe.c:890 [inline] create_pipe_files+0x87/0x700 fs/pipe.c:922 __do_pipe_flags+0x48/0x2d0 fs/pipe.c:973 do_pipe2+0xd4/0x310 fs/pipe.c:1024 __do_sys_pipe2 fs/pipe.c:1042 [inline] __se_sys_pipe2 fs/pipe.c:1040 [inline] __x64_sys_pipe2+0x5a/0x70 fs/pipe.c:1040 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: 0033:0x7fcdfa4c119a RSP: 002b:00007ffd9af04f68 EFLAGS: 00000246 ORIG_RAX: 0000000000000125 RAX: ffffffffffffffda RBX: 0000000000000084 RCX: 00007fcdfa4c119a RDX: 0000556060d24db8 RSI: 0000000000000000 RDI: 00007ffd9af04fe0 RBP: 0000556060d22ab8 R08: 0000556060d24db8 R09: 0000000000000040 R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000084 R13: 0000000000000000 R14: 0000556060d230e0 R15: 0000000000000024 rcu: rcu_preempt kthread starved for 4425 jiffies! g19913 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:26264 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99 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: CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.13.0-rc3-syzkaller-00174-ga024e377efed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:skb_reset_mac_len include/linux/skbuff.h:2929 [inline] RIP: 0010:__netif_receive_skb_core+0x4bf/0x4690 net/core/dev.c:5479 Code: 41 29 df eb 0c e8 41 85 08 f8 90 0f 0b 90 45 31 ff 49 83 c6 78 4c 89 f0 48 c1 e8 03 48 bb 00 00 00 00 00 fc ff df 0f b6 04 18 <84> c0 0f 85 39 3d 00 00 66 45 89 3e 48 8b 44 24 38 80 3c 18 00 74 RSP: 0018:ffffc900001e7440 EFLAGS: 00000a06 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: dffffc0000000000 RDX: 0000000000000100 RSI: 0000000000000002 RDI: 000000000000ffff RBP: ffffc900001e7710 R08: ffffffff8996ee71 R09: 1ffffffff2032f86 R10: dffffc0000000000 R11: fffffbfff2032f87 R12: ffff8880b0dbe000 R13: 1ffff110161b7c16 R14: ffff8880b0dbe078 R15: 000000000002000e FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8b375ffffc CR3: 000000003479a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 process_backlog+0x662/0x15b0 net/core/dev.c:6117 __napi_poll+0xcb/0x490 net/core/dev.c:6883 napi_poll net/core/dev.c:6952 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:7074 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950 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 bridge0: received packet on veth0_to_bridge with own address as source address (addr:0a:67:c8:3c:65:45, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:0a:67:c8:3c:65:45, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:0a:67:c8:3c:65:45, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:0a:67:c8:3c:65:45, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:0a:67:c8:3c:65:45, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:0a:67:c8:3c:65:45, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:0a:67:c8:3c:65:45, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:0a:67:c8:3c:65:45, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:0a:67:c8:3c:65:45, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:0a:67:c8:3c:65:45, vlan:0)