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): P13696/1:b..l rcu: (detected by 0, t=10503 jiffies, g=59869, q=1430 ncpus=2) task:syz.1.1879 state:R running task stack:25944 pid:13696 tgid:13696 ppid:5828 task_flags:0x400040 flags:0x00080003 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1190/0x5de0 kernel/sched/core.c:6929 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7256 irqentry_exit+0x36/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_acquire+0x62/0x350 kernel/locking/lockdep.c:5872 Code: cd 08 12 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 a2 ee e9 0e 0f 82 74 02 00 00 8b 35 fa 1e ea 0e 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 b9 cc 08 12 0f 85 c7 02 00 00 48 83 c4 RSP: 0018:ffffc9000c07f2e8 EFLAGS: 00000206 RAX: 0000000000000046 RBX: ffffffff8e3c45a0 RCX: 00000000f4a3ad5b RDX: 0000000000000000 RSI: ffffffff8da02a90 RDI: ffffffff8bf075c0 RBP: 0000000000000002 R08: 49346caaa13694ff R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:867 [inline] class_rcu_constructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0xd1/0x20a0 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:56 kasan_save_track+0x14/0x30 mm/kasan/common.c:77 __kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:587 kasan_save_free_info mm/kasan/kasan.h:406 [inline] poison_slab_object mm/kasan/common.c:252 [inline] __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:284 kasan_slab_free include/linux/kasan.h:234 [inline] slab_free_hook mm/slub.c:2539 [inline] slab_free mm/slub.c:6634 [inline] kmem_cache_free+0x2d4/0x6c0 mm/slub.c:6744 free_buffer_head+0x4e/0x110 fs/buffer.c:3041 try_to_free_buffers+0x1c4/0x2d0 fs/buffer.c:2982 filemap_release_folio+0x219/0x280 mm/filemap.c:4423 block_invalidate_folio+0x508/0x600 fs/buffer.c:1674 folio_invalidate mm/truncate.c:140 [inline] truncate_cleanup_folio+0x2f6/0x490 mm/truncate.c:160 truncate_inode_pages_range+0x24e/0xe50 mm/truncate.c:379 kill_bdev block/bdev.c:91 [inline] blkdev_flush_mapping+0xfb/0x290 block/bdev.c:712 blkdev_put_whole+0xc4/0xf0 block/bdev.c:719 bdev_release+0x47e/0x6d0 block/bdev.c:1144 blkdev_release+0x15/0x20 block/fops.c:709 __fput+0x402/0xb70 fs/file_table.c:468 task_work_run+0x150/0x240 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xec/0x130 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x426/0xfa0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2b63f8f6c9 RSP: 002b:00007ffc0e6c4bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f2b641e7da0 RCX: 00007f2b63f8f6c9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f2b641e7da0 R08: 0000000000036c0c R09: 0000001e0e6c4eef R10: 00007f2b641e7cb0 R11: 0000000000000246 R12: 0000000000088313 R13: 00007f2b641e6090 R14: ffffffffffffffff R15: 00007ffc0e6c4d10 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:0c, 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:c6:b0:7b:bc:37:1c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 13133 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:0c, 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:c6:b0:7b:bc:37:1c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)