bridge0: received packet on veth0_to_bridge with own address as source address (addr:16:d2:c9:c9:54:12, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P11047/1:b..l rcu: (detected by 0, t=10503 jiffies, g=47533, q=2648 ncpus=2) task:syz.0.999 state:R running task stack:24960 pid:11047 tgid:11047 ppid:5830 task_flags:0x400040 flags:0x00080000 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:on_stack arch/x86/include/asm/stacktrace.h:-1 [inline] RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:409 [inline] RIP: 0010:deref_stack_regs arch/x86/kernel/unwind_orc.c:434 [inline] RIP: 0010:unwind_next_frame+0xf0a/0x23c0 arch/x86/kernel/unwind_orc.c:611 Code: 00 00 4d 8b 66 08 49 8d 5e 10 48 89 dd 48 c1 ed 03 48 b8 00 00 00 00 00 fc ff df 80 7c 05 00 00 74 08 48 89 df e8 d6 50 b9 00 <48> 89 5c 24 60 4c 89 7c 24 28 49 8b 5e 10 48 b8 00 00 00 00 00 fc RSP: 0018:ffffc9001d2f71b8 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffffc9001d2f7298 RCX: ffffffff9023e6d4 RDX: ffffffff909cff02 RSI: 0000000000000003 RDI: ffffffff8c27bda0 RBP: 1ffff92003a5ee53 R08: 0000000000000022 R09: ffffffff8e75e520 R10: ffffc9001d2f72d8 R11: ffffffff81b0c240 R12: ffffc9001d2f0000 R13: ffffc9001d2f7290 R14: ffffc9001d2f7288 R15: 1ffffffff2139fe0 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:5573 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:4538 [inline] slab_alloc_node mm/slub.c:4866 [inline] kmem_cache_alloc_noprof+0x2bc/0x650 mm/slub.c:4873 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+0x91b/0x2060 mm/vma.c:1672 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: 0033:0x7f7610f9c597 RSP: 002b:00007f761133f9e8 EFLAGS: 00000206 ORIG_RAX: 000000000000000a RAX: ffffffffffffffda RBX: 00007f7611e936c0 RCX: 00007f7610f9c597 RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007f7611e74000 RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000 R10: 0000000000021000 R11: 0000000000000206 R12: 00007f761133fb40 R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000 net_ratelimit: 32760 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:16:d2:c9:c9:54:12, 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:16:d2:c9:c9:54:12, 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: 37291 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:16:d2:c9:c9:54:12, 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:16:d2:c9:c9:54:12, vlan:0)