bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:e0:ac:71:91:0e, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6930/1:b..l rcu: (detected by 1, t=10503 jiffies, g=14637, q=1598 ncpus=2) task:syz.1.267 state:R running task stack:26808 pid:6930 tgid:6929 ppid:5832 task_flags:0x400140 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x16e2/0x4cd0 kernel/sched/core.c:6767 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7090 irqentry_exit+0x6f/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:trace_lock_release include/trace/events/lock.h:69 [inline] RIP: 0010:lock_release+0x44/0x3e0 kernel/locking/lockdep.c:5877 Code: 8b 05 90 d1 d7 10 48 89 44 24 28 0f 1f 44 00 00 65 8b 05 93 d1 d7 10 83 f8 08 0f 83 9a 02 00 00 89 c0 48 0f a3 05 bc fe e0 0d <73> 16 e8 c5 c8 08 00 84 c0 75 0d f6 05 df f3 ca 0d 01 0f 84 ad 02 RSP: 0018:ffffc9001ad9f010 EFLAGS: 00000297 RAX: 0000000000000001 RBX: ffffffff900ca501 RCX: b7b8111682019000 RDX: ffffc9001ad9f101 RSI: ffffffff8171a9f5 RDI: ffffffff8df3b860 RBP: dffffc0000000000 R08: ffffc9001ad9f230 R09: 0000000000000000 R10: ffffc9001ad9f1f8 R11: fffff520035b3e41 R12: ffffc9001ad9f240 R13: ffffffff8171a9f5 R14: ffffffff8df3b860 R15: ffffffff8171a9f5 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x19a9/0x2390 arch/x86/kernel/unwind_orc.c:680 __unwind_start+0x5b9/0x760 arch/x86/kernel/unwind_orc.c:758 unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0xe4/0x150 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 save_stack+0xf7/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:308 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1258 [inline] __free_frozen_pages+0xb14/0xce0 mm/page_alloc.c:2721 discard_slab mm/slub.c:2716 [inline] __put_partials+0x161/0x1c0 mm/slub.c:3185 put_cpu_partial+0x17c/0x250 mm/slub.c:3260 __slab_free+0x2f7/0x400 mm/slub.c:4512 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4147 [inline] slab_alloc_node mm/slub.c:4196 [inline] kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4203 ptlock_alloc+0x20/0x70 mm/memory.c:7354 ptlock_init include/linux/mm.h:3074 [inline] pagetable_pte_ctor include/linux/mm.h:3122 [inline] __pte_alloc_one_noprof include/asm-generic/pgalloc.h:73 [inline] pte_alloc_one+0x6d/0x160 arch/x86/mm/pgtable.c:17 __pte_alloc+0x25/0x160 mm/memory.c:430 do_anonymous_page mm/memory.c:4968 [inline] do_pte_missing mm/memory.c:4158 [inline] handle_pte_fault mm/memory.c:5997 [inline] __handle_mm_fault+0x49e9/0x5380 mm/memory.c:6140 handle_mm_fault+0x3f6/0x8c0 mm/memory.c:6309 do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1388 handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x68/0x110 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:rep_movs_alternative+0x4a/0x90 arch/x86/lib/copy_user_64.S:74 Code: cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 db 83 f9 08 73 e8 eb c5 a4 c3 cc cc cc cc 48 8b 06 48 89 07 48 8d 47 08 48 83 e0 f8 48 RSP: 0018:ffffc9001ad9fbb8 EFLAGS: 00050202 RAX: 00007ffffffff001 RBX: 00000000000200cc RCX: 0000000000003540 RDX: 0000000000000001 RSI: 0000200000800000 RDI: ffff888059a5cb8c RBP: ffffc9001ad9fd00 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: ffffed100b34c019 R12: ffffc9001ad9fdc8 R13: 1ffff920035b3fb9 R14: ffff888059a40000 R15: 00002000007e3474 copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:141 [inline] _inline_copy_from_user include/linux/uaccess.h:178 [inline] _copy_from_user+0x7a/0xb0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:212 [inline] generic_map_update_batch+0x572/0x7f0 kernel/bpf/syscall.c:1978 bpf_map_do_batch+0x369/0x5f0 kernel/bpf/syscall.c:5342 __sys_bpf+0x384/0x860 kernel/bpf/syscall.c:-1 __do_sys_bpf kernel/bpf/syscall.c:5941 [inline] __se_sys_bpf kernel/bpf/syscall.c:5939 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5939 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7facdcb8e969 RSP: 002b:00007facddaa2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007facdcdb5fa0 RCX: 00007facdcb8e969 RDX: 0000000000000038 RSI: 0000200000000300 RDI: 000000000000001a RBP: 00007facdcc10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007facdcdb5fa0 R15: 00007ffc368f33b8 bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:e0:ac:71:91:0e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:e0:ac:71:91:0e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:e0:ac:71:91:0e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:e0:ac:71:91:0e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:e0:ac:71:91:0e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:e0:ac:71:91:0e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:e0:ac:71:91:0e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:e0:ac:71:91:0e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:e0:ac:71:91:0e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:5e:e0:ac:71:91:0e, vlan:0)