bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P22226/1:b..l rcu: (detected by 0, t=10503 jiffies, g=106009, q=2366 ncpus=2) task:syz.1.4130 state:R running task stack:25640 pid:22226 tgid:22226 ppid:17254 task_flags:0x400040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5510 [inline] __schedule+0x17d9/0x56c0 kernel/sched/core.c:7234 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7556 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x8f0 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:debug_lockdep_rcu_enabled+0x29/0x40 kernel/rcu/update.c:321 Code: 90 f3 0f 1e fa 31 c0 83 3d 83 3e 88 04 00 74 1d 83 3d 5a 70 88 04 00 74 14 65 48 8b 0d 58 55 9d 07 31 c0 83 b9 9c 0b 00 00 00 <0f> 94 c0 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc RSP: 0018:ffffc90010007038 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc900100070f8 RCX: ffff888031fbdd00 RDX: ffffc90010007101 RSI: dffffc0000000000 RDI: ffffc900100070f0 RBP: 1ffffffff21faf01 R08: ffffc90010007380 R09: 0000000000000000 R10: ffffc90010007138 R11: fffff52002000e29 R12: ffffc90010000000 R13: ffffffff8176f27f R14: ffffc900100070e8 R15: ffffc90010007390 rcu_read_unlock include/linux/rcupdate.h:869 [inline] class_rcu_destructor include/linux/rcupdate.h:1183 [inline] unwind_next_frame+0x1b5d/0x2550 arch/x86/kernel/unwind_orc.c:709 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 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320 reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1406 [inline] __free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950 __slab_free+0x274/0x2c0 mm/slub.c:5767 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4612 [inline] slab_alloc_node mm/slub.c:4945 [inline] kmem_cache_alloc_noprof+0x2a0/0x5f0 mm/slub.c:4959 mt_alloc_one lib/maple_tree.c:139 [inline] mas_alloc_nodes+0x291/0x350 lib/maple_tree.c:1089 mas_preallocate+0x2cf/0x630 lib/maple_tree.c:4961 vma_iter_prealloc mm/vma.h:577 [inline] __split_vma+0x318/0xa50 mm/vma.c:529 split_vma mm/vma.c:599 [inline] vma_modify+0x93a/0x1c70 mm/vma.c:1699 vma_modify_flags+0x24b/0x330 mm/vma.c:1719 mprotect_fixup+0x624/0xb10 mm/mprotect.c:789 do_mprotect_pkey+0x9d3/0xcd0 mm/mprotect.c:967 __do_sys_mprotect mm/mprotect.c:988 [inline] __se_sys_mprotect mm/mprotect.c:985 [inline] __x64_sys_mprotect+0x80/0x90 mm/mprotect.c:985 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f59a099dc97 RSP: 002b:00007ffdc7801348 EFLAGS: 00000206 ORIG_RAX: 000000000000000a RAX: ffffffffffffffda RBX: 00007f59a17856c0 RCX: 00007f59a099dc97 RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007f59a1766000 RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000 R10: 0000000000021000 R11: 0000000000000206 R12: 00007ffdc78014a0 R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000 bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:2e:b5:02:4c:f4:bf, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:2e:b5:02:4c:f4:bf, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) net_ratelimit: 19491 callbacks suppressed bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:2e:b5:02:4c:f4:bf, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:2e:b5:02:4c:f4:bf, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)