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): P18608/1:b..l rcu: (detected by 1, t=10503 jiffies, g=51601, q=2897 ncpus=2) task:syz.4.3448 state:R running task stack:25224 pid:18608 tgid:18608 ppid:17498 task_flags:0x400040 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5357 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6961 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7288 irqentry_exit+0x6f/0x90 kernel/entry/common.c:197 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:bpf_tree_comp kernel/bpf/core.c:646 [inline] RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline] RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:210 [inline] RIP: 0010:bpf_ksym_find kernel/bpf/core.c:744 [inline] RIP: 0010:is_bpf_text_address+0x138/0x2b0 kernel/bpf/core.c:777 Code: 2c 5b 48 f7 dd 4d 8d 24 2f 49 81 c4 e0 fd ff ff 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 fc 71 54 00 4d 8b 24 24 <4c> 89 e7 4c 89 f6 e8 fd 0a f1 ff 4d 39 f4 76 0c e8 93 08 f1 ff b8 RSP: 0018:ffffc9000aee6db0 EFLAGS: 00000246 RAX: 1ffff1100f518240 RBX: 0000000000000000 RCX: ffff88802c6dda00 RDX: 0000000000000000 RSI: 00007fd64138ec23 RDI: ffffffffa0205118 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffc9000aee6e98 R11: ffffffff81ac3810 R12: ffffffffa0201730 R13: dffffc0000000000 R14: 00007fd64138ec23 R15: ffff88807a8c1420 kernel_text_address+0xa5/0xe0 kernel/extable.c:125 __kernel_text_address+0xd/0x40 kernel/extable.c:79 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:369 arch_stack_walk+0xfc/0x150 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:330 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:356 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4180 [inline] kmem_cache_alloc_bulk_noprof+0x4e0/0x790 mm/slub.c:5411 mt_alloc_bulk lib/maple_tree.c:181 [inline] mas_alloc_nodes+0x447/0x8e0 lib/maple_tree.c:1277 mas_node_count_gfp lib/maple_tree.c:1337 [inline] mas_preallocate+0x3ad/0x6f0 lib/maple_tree.c:5537 vma_iter_prealloc mm/vma.h:462 [inline] __split_vma+0x2fa/0xa00 mm/vma.c:528 vms_gather_munmap_vmas+0x2ea/0x12f0 mm/vma.c:1359 __mmap_prepare mm/vma.c:2359 [inline] __mmap_region mm/vma.c:2651 [inline] mmap_region+0x724/0x20c0 mm/vma.c:2739 do_mmap+0xc45/0x10d0 mm/mmap.c:558 vm_mmap_pgoff+0x2a6/0x4d0 mm/util.c:580 ksys_mmap_pgoff+0x51f/0x760 mm/mmap.c:604 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd64138ec23 RSP: 002b:00007ffe06d7c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fd6415b6308 RCX: 00007fd64138ec23 RDX: 0000000000000003 RSI: 0000000000400000 RDI: 00007fd63f1f6000 RBP: 00007fd6415b6270 R08: 00000000000000db R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000003 R13: 00007fd6415b6270 R14: 0000000000001b23 R15: 0000000000000005 net_ratelimit: 31014 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: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: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: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: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)