bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P20293/1:b..l rcu: (detected by 0, t=10503 jiffies, g=150357, q=1342 ncpus=2) task:syz.0.3620 state:R running task stack:27848 pid:20293 tgid:20286 ppid:16897 task_flags:0x400040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5298 [inline] __schedule+0x15dd/0x52d0 kernel/sched/core.c:6911 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7238 irqentry_exit+0x599/0x620 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:unwind_next_frame+0x10e/0x23c0 include/linux/rcupdate.h:-1 Code: ef 84 0e 00 75 1f c6 05 3f ef 84 0e 01 48 c7 c7 e0 a2 c9 8b be 54 03 00 00 48 c7 c2 20 a3 c9 8b e8 07 55 2b 00 4c 89 6c 24 78 <48> 89 5c 24 70 4d 8d 6e 50 4c 89 e8 48 c1 e8 03 48 89 44 24 38 80 RSP: 0018:ffffc90013b0f4d8 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffffffff81d7466d RCX: 0000000080000001 RDX: 000000005a44979c RSI: ffffffff8c27c160 RDI: ffffffff8c27c120 RBP: dffffc0000000000 R08: ffffffff81767e95 R09: ffffffff8e75e520 R10: ffffc90013b0f5f8 R11: ffffffff81b0c240 R12: 1ffff92002761eb5 R13: ffffc90013b0f5e0 R14: ffffc90013b0f5a8 R15: ffffffff81767e95 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 save_stack+0x122/0x230 mm/page_owner.c:165 __set_page_owner+0x8d/0x4c0 mm/page_owner.c:341 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1889 prep_new_page mm/page_alloc.c:1897 [inline] get_page_from_freelist+0x24dc/0x2580 mm/page_alloc.c:3962 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5250 __alloc_pages_noprof+0xa/0x30 mm/page_alloc.c:5284 __alloc_pages_node_noprof include/linux/gfp.h:289 [inline] alloc_pages_node_noprof include/linux/gfp.h:316 [inline] bpf_ringbuf_area_alloc kernel/bpf/ringbuf.c:128 [inline] bpf_ringbuf_alloc+0x26e/0x5f0 kernel/bpf/ringbuf.c:176 ringbuf_map_alloc+0x1f1/0x330 kernel/bpf/ringbuf.c:219 map_create+0xafd/0x16a0 kernel/bpf/syscall.c:1507 __sys_bpf+0x6e1/0x950 kernel/bpf/syscall.c:6210 __do_sys_bpf kernel/bpf/syscall.c:6341 [inline] __se_sys_bpf kernel/bpf/syscall.c:6339 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6339 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f543f79c799 RSP: 002b:00007f544066f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f543fa16360 RCX: 00007f543f79c799 RDX: 0000000000000050 RSI: 0000200000000080 RDI: 0000000000000000 RBP: 00007f543f832c99 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f543fa163f8 R14: 00007f543fa16360 R15: 00007f543fb3fa48 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 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 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 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 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)