bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:f8:ae:8a:e7:61, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6043/1:b..l rcu: (detected by 1, t=10503 jiffies, g=7757, q=1035 ncpus=2) task:syz.0.35 state:R running task stack:26392 pid:6043 tgid:6042 ppid:5808 task_flags:0x400140 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x116f/0x5de0 kernel/sched/core.c:6767 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7090 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire+0x62/0x350 kernel/locking/lockdep.c:5870 Code: e9 0b 12 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 02 d9 ec 0e 0f 82 74 02 00 00 8b 35 9a 08 ed 0e 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 d9 e8 0b 12 0f 85 c7 02 00 00 48 83 c4 RSP: 0018:ffffc9000b6cf3f0 EFLAGS: 00000206 RAX: 0000000000000046 RBX: ffffffff8e3bfc00 RCX: 000000001fce6d3f RDX: 0000000000000000 RSI: ffffffff8dbbd30b RDI: ffffffff8bf48aa0 RBP: 0000000000000002 R08: 4c7f681cd318acaf R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] get_mem_cgroup_from_mm+0x4b/0x600 mm/memcontrol.c:950 __mem_cgroup_charge+0x1a/0x1e0 mm/memcontrol.c:4608 mem_cgroup_charge include/linux/memcontrol.h:642 [inline] shmem_alloc_and_add_folio+0x514/0xc20 mm/shmem.c:1903 shmem_get_folio_gfp+0x687/0x1530 mm/shmem.c:2533 shmem_fault+0x1fe/0xa30 mm/shmem.c:2734 __do_fault+0x10a/0x490 mm/memory.c:5098 do_read_fault mm/memory.c:5518 [inline] do_fault mm/memory.c:5652 [inline] do_pte_missing+0x1031/0x3fb0 mm/memory.c:4160 handle_pte_fault mm/memory.c:5997 [inline] __handle_mm_fault+0x103d/0x2a40 mm/memory.c:6140 handle_mm_fault+0x3fe/0xad0 mm/memory.c:6309 faultin_page mm/gup.c:1193 [inline] __get_user_pages+0x771/0x36f0 mm/gup.c:1491 populate_vma_page_range+0x278/0x3a0 mm/gup.c:1929 __mm_populate+0x1d8/0x380 mm/gup.c:2032 mm_populate include/linux/mm.h:3487 [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/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8c0e98e969 RSP: 002b:00007f8c0f7da038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f8c0ebb5fa0 RCX: 00007f8c0e98e969 RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000200000000000 RBP: 00007f8c0ea10ab1 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f8c0ebb5fa0 R15: 00007ffd10907798 bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:f8:ae:8a:e7:61, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:f8:ae:8a:e7:61, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:f8:ae:8a:e7:61, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:f8:ae:8a:e7:61, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:f8:ae:8a:e7:61, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:f8:ae:8a:e7:61, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:f8:ae:8a:e7:61, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:f8:ae:8a:e7:61, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:f8:ae:8a:e7:61, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:f8:ae:8a:e7:61, vlan:0)