bridge0: received packet on veth0_to_bridge with own address as source address (addr:0e:46:3e:ea:e0:10, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P31962/1:b..l rcu: (detected by 0, t=10502 jiffies, g=136105, q=468 ncpus=1) task:syz.3.11479 state:R running task stack:27320 pid:31962 tgid:31960 ppid:5822 task_flags:0x400140 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5260 [inline] __schedule+0xfe4/0x5e10 kernel/sched/core.c:6867 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7194 irqentry_exit+0x17b/0x670 kernel/entry/common.c:216 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_is_held_type+0x0/0x140 kernel/locking/lockdep.c:5925 Code: df 48 8d 3d 82 c4 46 05 48 c7 c6 27 b4 c1 8d 67 48 0f b9 3a eb c7 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 8b 0d ea ab 43 05 b8 ff ff ff ff 85 c9 0f 84 ed 00 00 RSP: 0018:ffffc9000b8079f8 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffc9000c93c000 RDX: 0000000000000001 RSI: 00000000ffffffff RDI: ffffffff8e5e3060 RBP: ffff88807f0e0000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88807d050000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 lock_is_held include/linux/lockdep.h:249 [inline] rcu_read_lock_sched_held kernel/rcu/update.c:126 [inline] rcu_read_lock_sched_held+0x40/0x70 kernel/rcu/update.c:120 task_css include/linux/cgroup.h:460 [inline] mem_cgroup_from_task+0x73/0x150 mm/memcontrol.c:885 count_memcg_events_mm.constprop.0+0xae/0x2a0 include/linux/memcontrol.h:983 count_memcg_event_mm include/linux/memcontrol.h:992 [inline] mm_account_fault mm/memory.c:6448 [inline] handle_mm_fault+0x7ea/0xa20 mm/memory.c:6609 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0xf9c/0x34d0 mm/gup.c:1428 __get_user_pages_locked mm/gup.c:1692 [inline] faultin_page_range+0x1f1/0x9e0 mm/gup.c:1912 madvise_populate mm/madvise.c:976 [inline] madvise_do_behavior+0x354/0x510 mm/madvise.c:1935 do_madvise+0x195/0x240 mm/madvise.c:2030 __do_sys_madvise mm/madvise.c:2039 [inline] __se_sys_madvise mm/madvise.c:2037 [inline] __x64_sys_madvise+0xa9/0x110 mm/madvise.c:2037 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8dacb9aeb9 RSP: 002b:00007f8dad980028 EFLAGS: 00000246 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 00007f8dace15fa0 RCX: 00007f8dacb9aeb9 RDX: 0000000000000017 RSI: ffffffffffff0005 RDI: 0000000000000000 RBP: 00007f8dacc08c1f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8dace16038 R14: 00007f8dace15fa0 R15: 00007ffdf4f0f388 net_ratelimit: 10928 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:0e:46:3e:ea:e0:10, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:0e:46:3e:ea:e0:10, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) net_ratelimit: 11089 callbacks suppressed 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:0e:46:3e:ea:e0:10, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:0e:46:3e:ea:e0:10, 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)