bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:a4:0f:8c:20:8c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6258/1:b..l rcu: (detected by 1, t=10503 jiffies, g=11177, q=1480 ncpus=2) task:syz.1.63 state:R running task stack:26888 pid:6258 tgid:6254 ppid:5834 task_flags:0x40044c flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5397 [inline] __schedule+0x16a2/0x4cb0 kernel/sched/core.c:6786 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7109 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:__orc_find arch/x86/kernel/unwind_orc.c:102 [inline] RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline] RIP: 0010:unwind_next_frame+0x1323/0x2390 arch/x86/kernel/unwind_orc.c:494 Code: 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 27 49 63 07 4c 01 f8 49 8d 4f 04 4c 39 e0 48 0f 46 e9 <49> 8d 47 fc 48 0f 47 d8 4d 0f 46 ef 48 39 dd 76 a2 e9 7b ef ff ff RSP: 0018:ffffc9000c0e70d8 EFLAGS: 00000206 RAX: ffffffff82215687 RBX: ffffffff8fbd40c0 RCX: ffffffff8fbd40bc RDX: ffffffff8fbd40b4 RSI: ffffffff903d3c32 RDI: ffffffff8be1c9a0 RBP: ffffffff8fbd40b4 R08: 000000000000000a R09: ffffffff8172aae5 R10: ffffc9000c0e71f8 R11: ffffffff81acff90 R12: ffffffff82215682 R13: ffffffff8fbd40b4 R14: ffffc9000c0e71a8 R15: ffffffff8fbd40b8 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 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 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x230/0x3d0 mm/slub.c:4359 kmalloc_noprof include/linux/slab.h:905 [inline] slab_free_hook mm/slub.c:2333 [inline] slab_free mm/slub.c:4643 [inline] kmem_cache_free+0x166/0x400 mm/slub.c:4745 anon_vma_free mm/rmap.c:137 [inline] __put_anon_vma+0x12b/0x2d0 mm/rmap.c:2766 put_anon_vma include/linux/rmap.h:117 [inline] unlink_anon_vmas+0x503/0x670 mm/rmap.c:444 free_pgtables+0x587/0xaf0 mm/memory.c:381 exit_mmap+0x444/0xb50 mm/mmap.c:1295 __mmput+0x118/0x410 kernel/fork.c:1121 exit_mm+0x1da/0x2c0 kernel/exit.c:581 do_exit+0x648/0x22e0 kernel/exit.c:952 do_group_exit+0x21c/0x2d0 kernel/exit.c:1105 get_signal+0x125e/0x1310 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: 0033:0x7f2b2438e929 RSP: 002b:00007f2b251bb038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: 0000000000010106 RBX: 00007f2b245b6080 RCX: 00007f2b2438e929 RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003 RBP: 00007f2b24410b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f2b245b6080 R15: 00007ffdec40d1d8 bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:a4:0f:8c:20:8c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:a4:0f:8c:20:8c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:a4:0f:8c:20:8c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:a4:0f:8c:20:8c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:a4:0f:8c:20:8c, vlan:0) net_ratelimit: 13894 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:a4:0f:8c:20:8c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:a4:0f:8c:20:8c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:a4:0f:8c:20:8c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:a4:0f:8c:20:8c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:26:a4:0f:8c:20:8c, vlan:0)