bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P11956/1:b..l rcu: (detected by 0, t=10503 jiffies, g=42857, q=2768 ncpus=2) task:syz.0.1286 state:R running task stack:26760 pid:11956 tgid:11955 ppid:5812 task_flags:0x400140 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5396 [inline] __schedule+0x116a/0x5de0 kernel/sched/core.c:6785 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7108 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:unwind_next_frame+0x5b1/0x20a0 arch/x86/kernel/unwind_orc.c:512 Code: 00 00 4c 89 f2 44 0f b6 79 05 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 4c 89 f2 41 c0 ef 03 83 e2 07 41 83 e7 01 <38> d0 7f 08 84 c0 0f 85 aa 13 00 00 45 88 7d 35 44 0f b6 71 04 41 RSP: 0018:ffffc90003d7ed80 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff9148b624 RDX: 0000000000000005 RSI: 0000000000000001 RDI: ffffffff90c10e68 RBP: ffffc90003d7ee38 R08: ffffffff9148b628 R09: 0000000000000000 R10: 0000000000000000 R11: 000000000000ff00 R12: ffffc90003d7ee40 R13: ffffc90003d7edf0 R14: ffffc90003d7ee25 R15: 0000000000000000 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 populate_vma_page_range+0x278/0x3a0 mm/gup.c:1926 __mm_populate+0x1d8/0x380 mm/gup.c:2029 mm_populate include/linux/mm.h:3348 [inline] vm_mmap_pgoff+0x362/0x450 mm/util.c:584 ksys_mmap_pgoff+0x7d/0x5c0 mm/mmap.c:607 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline] __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9d0998e929 RSP: 002b:00007f9d0a783038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f9d09bb5fa0 RCX: 00007f9d0998e929 RDX: b635773f06ebbee2 RSI: 0000000000b36000 RDI: 0000200000000000 RBP: 00007f9d09a10b39 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9d09bb5fa0 R15: 00007ffc6f7ade08 net_ratelimit: 19137 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) net_ratelimit: 20081 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)