bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:2f:ff:7d:7b:2f, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8766/1:b..l P8874/2:b..l rcu: (detected by 1, t=10503 jiffies, g=32413, q=1389 ncpus=2) task:syz.1.535 state:R running task stack:25416 pid:8874 tgid:8873 ppid:5847 task_flags:0x400140 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5401 [inline] __schedule+0x116a/0x5de0 kernel/sched/core.c:6790 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6970 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12 __local_bh_enable_ip+0x107/0x120 kernel/softirq.c:414 local_bh_enable include/linux/bottom_half.h:33 [inline] ipt_do_table+0xd55/0x1ae0 net/ipv4/netfilter/ip_tables.c:357 nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline] nf_hook_slow+0xbb/0x200 net/netfilter/core.c:623 nf_hook+0x370/0x680 include/linux/netfilter.h:272 __ip_local_out+0x339/0x7c0 net/ipv4/ip_output.c:118 ip_local_out net/ipv4/ip_output.c:127 [inline] __ip_queue_xmit+0x872/0x26c0 net/ipv4/ip_output.c:527 __tcp_transmit_skb+0x2686/0x3e90 net/ipv4/tcp_output.c:1479 tcp_transmit_skb net/ipv4/tcp_output.c:1497 [inline] tcp_send_active_reset+0x440/0x830 net/ipv4/tcp_output.c:3654 __tcp_close+0x397/0xff0 net/ipv4/tcp.c:3150 tcp_close+0x28/0x120 net/ipv4/tcp.c:3277 inet_release+0x13f/0x280 net/ipv4/af_inet.c:435 __sock_release net/socket.c:647 [inline] sock_release+0x91/0x1d0 net/socket.c:675 smc_clcsock_release+0xb7/0xe0 net/smc/smc_close.c:34 __smc_release+0x5c2/0x880 net/smc/af_smc.c:301 smc_release+0x1fc/0x5f0 net/smc/af_smc.c:344 __sock_release+0xb0/0x270 net/socket.c:647 sock_close+0x1c/0x30 net/socket.c:1391 __fput+0x402/0xb70 fs/file_table.c:465 task_work_run+0x14d/0x240 kernel/task_work.c:227 get_signal+0x1d1/0x26d0 kernel/signal.c:2807 arch_do_signal_or_restart+0x8f/0x790 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:111 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline] do_syscall_64+0x3f6/0x490 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff1ca78e929 RSP: 002b:00007ff1cb6cb038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: 0000000000298000 RBX: 00007ff1ca9b5fa0 RCX: 00007ff1ca78e929 RDX: 00000000fffffde9 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007ff1ca810b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ff1ca9b5fa0 R15: 00007fff9ccf3178 task:syz.4.521 state:R running task stack:23512 pid:8766 tgid:8766 ppid:8135 task_flags:0x400640 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5401 [inline] __schedule+0x116a/0x5de0 kernel/sched/core.c:6790 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7113 irqentry_exit+0x36/0x90 kernel/entry/common.c:307 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline] RIP: 0010:unwind_next_frame+0x2d7/0x20a0 arch/x86/kernel/unwind_orc.c:494 Code: c2 01 48 3d e8 e8 fa 91 0f 83 4d 08 00 00 41 89 d0 4f 8d 04 40 4f 8d 84 00 48 40 38 91 49 81 f8 e8 e8 fa 91 0f 87 31 08 00 00 <29> ca 48 8d 3c bd 88 7a b6 90 4c 89 f9 48 89 c6 e8 14 f3 ff ff 48 RSP: 0018:ffffc90004c6e310 EFLAGS: 00000297 RAX: ffffffff914cb1e0 RBX: 0000000000000001 RCX: 0000000000036844 RDX: 000000000003684c RSI: 00000000000a880c RDI: 0000000000036844 RBP: ffffc90004c6e3c8 R08: ffffffff914cb210 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000011e38 R12: ffffc90004c6e3d0 R13: ffffc90004c6e380 R14: ffffc90004c6e3b5 R15: ffffffff821e38b5 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 save_stack+0x160/0x1f0 mm/page_owner.c:156 __set_page_owner+0x91/0x550 mm/page_owner.c:329 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704 prep_new_page mm/page_alloc.c:1712 [inline] get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2419 folio_alloc_mpol_noprof+0x36/0x2f0 mm/mempolicy.c:2438 shmem_alloc_folio+0x135/0x160 mm/shmem.c:1851 shmem_alloc_and_add_folio+0x499/0xc20 mm/shmem.c:1890 shmem_get_folio_gfp+0x67f/0x1600 mm/shmem.c:2536 shmem_fault+0x1fe/0xa30 mm/shmem.c:2737 __do_fault+0x10d/0x490 mm/memory.c:5169 do_read_fault mm/memory.c:5590 [inline] do_fault mm/memory.c:5724 [inline] do_pte_missing mm/memory.c:4251 [inline] handle_pte_fault mm/memory.c:6069 [inline] __handle_mm_fault+0x3c2a/0x5490 mm/memory.c:6212 handle_mm_fault+0x589/0xd10 mm/memory.c:6381 faultin_page mm/gup.c:1186 [inline] __get_user_pages+0x589/0x3b80 mm/gup.c:1488 __get_user_pages_locked mm/gup.c:1754 [inline] get_dump_page+0x257/0x3d0 mm/gup.c:2258 dump_user_range+0x195/0xb60 fs/coredump.c:1180 elf_core_dump+0x288a/0x3a90 fs/binfmt_elf.c:2075 do_coredump+0x399f/0x4f10 fs/coredump.c:950 get_signal+0x22e3/0x26d0 kernel/signal.c:3019 arch_do_signal_or_restart+0x8f/0x790 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] irqentry_exit_to_user_mode+0x12a/0x270 kernel/entry/common.c:184 asm_exc_stack_segment+0x26/0x30 arch/x86/include/asm/idtentry.h:616 RIP: 0033:0x7f8502b8e931 RSP: 002b:0100000000000005 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007f8502db6080 RCX: 00007f8502b8e929 RDX: 0000000000000000 RSI: 0100000000000005 RDI: 0000000020003b46 RBP: 00007f8502c10b39 R08: 0000000000000002 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f8502db6080 R15: 00007fffc1e3a148 bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:2f:ff:7d:7b:2f, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:2f:ff:7d:7b:2f, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 12232 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:2f:ff:7d:7b:2f, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:2f:ff:7d:7b:2f, vlan:0)