bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_1 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): P16261/1:b..l rcu: (detected by 1, t=10509 jiffies, g=70249, q=2002 ncpus=2) task:syz.4.2730 state:R running task stack:24648 pid:16261 tgid:16261 ppid:5616 task_flags:0x40004c flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5533 [inline] __schedule+0x17db/0x58f0 kernel/sched/core.c:7284 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7606 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x910 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:lock_is_held_type+0x10b/0x150 kernel/locking/lockdep.c:6021 Code: ff ff ff 65 0f c1 05 ac 1c af 07 83 f8 01 75 25 9c 58 a9 00 02 00 00 75 39 41 f7 c4 00 02 00 00 74 01 fb 89 d8 5b 41 5c 41 5d <41> 5e 41 5f 5d c3 cc cc cc cc cc 90 0f 0b 90 48 c7 c7 a5 5a 41 8e RSP: 0018:ffffc9000a9d7940 EFLAGS: 00000206 RAX: 0000000000000001 RBX: ffffffff8243b302 RCX: 0000000000000046 RDX: 0000000000000000 RSI: ffffffff8e69f033 RDI: ffffffff8c6dac80 RBP: 00000000ffffffff R08: ffffffff8243b302 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff9400011b77f R12: 0000000000000080 R13: dffffc0000000000 R14: ffffffff8ed5c920 R15: 0000000000000001 lookup_page_ext mm/page_ext.c:253 [inline] page_ext_get+0x1b0/0x2e0 mm/page_ext.c:523 __reset_page_owner+0x28/0x1f0 mm/page_owner.c:324 reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 __slab_free+0x274/0x2c0 mm/slub.c:5823 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 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:4683 [inline] slab_alloc_node mm/slub.c:4996 [inline] kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010 taskstats_tgid_alloc kernel/taskstats.c:563 [inline] taskstats_exit+0x19e/0xe10 kernel/taskstats.c:602 do_exit+0x6ad/0x2360 kernel/exit.c:982 do_group_exit+0x22d/0x2f0 kernel/exit.c:1155 __do_sys_exit_group kernel/exit.c:1166 [inline] __se_sys_exit_group kernel/exit.c:1164 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1164 x64_sys_call+0x18c6/0x18d0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcf5ad9e159 RSP: 002b:00007ffc4b2847c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcf5ad9e159 RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007ffc4b28482c R08: 0000000000000000 R09: 00000000000927c0 R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000233 R13: 00000000000927c0 R14: 000000000006754f R15: 00007ffc4b284880