bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:d3:0e:0f:e0:20, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P15429/1:b..l rcu: (detected by 0, t=10503 jiffies, g=91565, q=1761 ncpus=2) task:syz.4.3211 state:R running task stack:24576 pid:15429 tgid:15429 ppid:7826 task_flags:0x400040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5295 [inline] __schedule+0x1585/0x5340 kernel/sched/core.c:6907 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7234 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:lock_release+0x2d7/0x3d0 kernel/locking/lockdep.c:5893 Code: 85 9f 11 00 00 00 00 eb b5 e8 b5 f2 16 0a f7 c3 00 02 00 00 74 b9 65 48 8b 05 35 40 9f 11 48 3b 44 24 28 75 44 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 1a d9 19 0a cc 48 8d 3d a2 df 94 RSP: 0018:ffffc90003007180 EFLAGS: 00000282 RAX: d2af0537441af800 RBX: 0000000000000202 RCX: 0000000000000046 RDX: 0000000000000002 RSI: ffffffff8e2832c1 RDI: ffffffff8c29bf80 RBP: ffff88802a306628 R08: ffffc90003007790 R09: 0000000000000000 R10: ffffc900030072d8 R11: fffff52000600e5d R12: 0000000000000002 R13: 0000000000000002 R14: ffffffff8e9602e0 R15: ffff88802a305ac0 rcu_lock_release include/linux/rcupdate.h:322 [inline] rcu_read_unlock include/linux/rcupdate.h:881 [inline] class_rcu_destructor include/linux/rcupdate.h:1193 [inline] unwind_next_frame+0x1aaa/0x23c0 arch/x86/kernel/unwind_orc.c:695 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:1433 [inline] __free_frozen_pages+0xc2b/0xdb0 mm/page_alloc.c:2978 __slab_free+0x263/0x2b0 mm/slub.c:5532 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x100 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:4501 [inline] slab_alloc_node mm/slub.c:4830 [inline] kmem_cache_alloc_noprof+0x2bc/0x650 mm/slub.c:4837 vm_area_dup+0x2b/0x680 mm/vma_init.c:123 __split_vma+0x1dc/0xa40 mm/vma.c:513 split_vma mm/vma.c:596 [inline] vma_modify+0xa30/0x2060 mm/vma.c:1680 vma_modify_flags+0x24b/0x330 mm/vma.c:1700 mprotect_fixup+0x47a/0xa80 mm/mprotect.c:756 do_mprotect_pkey+0x8ab/0xcd0 mm/mprotect.c:930 __do_sys_mprotect mm/mprotect.c:951 [inline] __se_sys_mprotect mm/mprotect.c:948 [inline] __x64_sys_mprotect+0x80/0x90 mm/mprotect.c:948 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: 0033:0x7f4bc3f9bd77 RSP: 002b:00007ffd93927dd8 EFLAGS: 00000206 ORIG_RAX: 000000000000000a RAX: ffffffffffffffda RBX: 00007f4bc4d8b6c0 RCX: 00007f4bc3f9bd77 RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007f4bc4d6c000 RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000 R10: 0000000000021000 R11: 0000000000000206 R12: 00007ffd93927f30 R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000 bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:d3:0e:0f:e0:20, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:d3:0e:0f:e0:20, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:d3:0e:0f:e0:20, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:d3:0e:0f:e0:20, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:d3:0e:0f:e0:20, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:d3:0e:0f:e0:20, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:d3:0e:0f:e0:20, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:d3:0e:0f:e0:20, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:d3:0e:0f:e0:20, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:d3:0e:0f:e0:20, vlan:0)