bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:57:d0:a2:d6:7e, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P19958/1:b..l rcu: (detected by 0, t=10503 jiffies, g=133345, q=3719 ncpus=2) task:syz.0.3829 state:R running task stack:23624 pid:19958 tgid:19956 ppid:15717 task_flags:0x2040044c flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5396 [inline] __schedule+0x16f5/0x4d00 kernel/sched/core.c:6785 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7108 irqentry_exit+0x6f/0x90 kernel/entry/common.c:307 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:_compound_head include/linux/page-flags.h:282 [inline] RIP: 0010:virt_to_folio include/linux/mm.h:1180 [inline] RIP: 0010:virt_to_slab mm/slab.h:211 [inline] RIP: 0010:kasan_addr_to_slab+0x2f/0x90 mm/kasan/common.c:38 Code: 56 53 48 89 fb e8 61 b8 50 ff 84 c0 74 3c 4c 8b 35 7e 5c 96 0b 48 89 df e8 3e b6 50 ff 48 c1 e8 06 48 83 e0 c0 49 8b 4c 06 08 c1 01 75 26 49 01 c6 66 90 41 0f b6 4e 33 c1 e1 18 31 c0 81 f9 RSP: 0018:ffffc9000557eeb0 EFLAGS: 00000206 RAX: 0000000000cba200 RBX: ffff888032e88280 RCX: ffff88801a441780 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000557f018 R08: 0000000000000000 R09: ffffffff817451d8 R10: dffffc0000000000 R11: fffffbfff1f4209f R12: dffffc0000000000 R13: 1ffff92000aafdec R14: ffffea0000000000 R15: 0000000000000000 kasan_record_aux_stack+0xf/0xd0 mm/kasan/generic.c:533 __call_rcu_common kernel/rcu/tree.c:3094 [inline] call_rcu+0x157/0x9c0 kernel/rcu/tree.c:3214 slab_free_hook mm/slub.c:2345 [inline] slab_free mm/slub.c:4643 [inline] kmem_cache_free+0x309/0x400 mm/slub.c:4745 blk_update_request+0x5eb/0xe70 block/blk-mq.c:987 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1149 nullb_complete_cmd drivers/block/null_blk/main.c:1402 [inline] null_handle_cmd drivers/block/null_blk/main.c:1454 [inline] null_queue_rq+0xbfe/0xe30 drivers/block/null_blk/main.c:1693 null_queue_rqs+0x123/0x270 drivers/block/null_blk/main.c:1707 __blk_mq_flush_list block/blk-mq.c:2826 [inline] blk_mq_dispatch_queue_requests+0x414/0x800 block/blk-mq.c:2871 blk_mq_flush_plug_list+0x432/0x550 block/blk-mq.c:2959 __blk_flush_plug+0x3d3/0x4b0 block/blk-core.c:1220 blk_finish_plug+0x5e/0x90 block/blk-core.c:1247 blkdev_writepages+0x10e/0x170 block/fops.c:484 do_writepages+0x32e/0x550 mm/page-writeback.c:2636 filemap_fdatawrite_wbc mm/filemap.c:386 [inline] __filemap_fdatawrite_range mm/filemap.c:419 [inline] filemap_write_and_wait_range+0x217/0x310 mm/filemap.c:691 filemap_write_and_wait include/linux/pagemap.h:68 [inline] sync_blockdev block/bdev.c:260 [inline] bdev_release+0x192/0x650 block/bdev.c:1126 blkdev_release+0x15/0x20 block/fops.c:684 __fput+0x449/0xa70 fs/file_table.c:465 task_work_run+0x1d1/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x6b5/0x22e0 kernel/exit.c:964 do_group_exit+0x21c/0x2d0 kernel/exit.c:1105 get_signal+0x1286/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:111 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f53a7f8e929 RSP: 002b:00007f53a8d48038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: 0000000000010106 RBX: 00007f53a81b6080 RCX: 00007f53a7f8e929 RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000004 RBP: 00007f53a8010b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f53a81b6080 R15: 00007f53a82dfa28 bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:57:d0:a2:d6:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:57:d0:a2:d6:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:57:d0:a2:d6:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:57:d0:a2:d6:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:57:d0:a2:d6:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:57:d0:a2:d6:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:57:d0:a2:d6:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:57:d0:a2:d6:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:57:d0:a2:d6:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:57:d0:a2:d6:7e, vlan:0)