bridge0: received packet on veth0_to_bridge with own address as source address (addr:f6:74:0d:f0:c7:ec, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P21213/1:b..l rcu: (detected by 0, t=10503 jiffies, g=72913, q=2447 ncpus=2) task:syz.1.4152 state:R running task stack:26120 pid:21213 tgid:21212 ppid:16790 task_flags:0x400140 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5295 [inline] __schedule+0x1585/0x5340 kernel/sched/core.c:6907 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7234 irqentry_exit+0x599/0x620 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_acquire+0x20b/0x2e0 kernel/locking/lockdep.c:5872 Code: e9 30 ff ff ff e8 65 e5 0b 0a f7 c3 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 e1 42 7a 11 48 3b 44 24 30 75 33 fb 48 83 c4 38 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 c6 cb 0e 0a cc 48 8d 3d 9e 5c 73 RSP: 0018:ffffc90013387358 EFLAGS: 00000282 RAX: 70f9229939165000 RBX: 0000000000000246 RCX: 0000000000000046 RDX: 00000000a1697acb RSI: ffffffff8e16343f RDI: ffffffff8c27aa00 RBP: 0000000000000000 R08: ffffffff81767a45 R09: ffffffff8e7602e0 R10: ffffc900133874b8 R11: ffffffff81b0b100 R12: 0000000000000002 R13: ffffffff8e7602e0 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:312 [inline] rcu_read_lock include/linux/rcupdate.h:850 [inline] class_rcu_constructor include/linux/rcupdate.h:1193 [inline] unwind_next_frame+0xc2/0x23c0 arch/x86/kernel/unwind_orc.c:495 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 save_stack+0x122/0x230 mm/page_owner.c:165 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320 reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1433 [inline] __free_frozen_pages+0xc2b/0xdb0 mm/page_alloc.c:2978 __slab_free+0x263/0x2b0 mm/slub.c:5532 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x22/0xb0 mm/kasan/common.c:406 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_noprof+0x31c/0x660 mm/slub.c:5339 kmalloc_noprof include/linux/slab.h:962 [inline] kzalloc_noprof include/linux/slab.h:1200 [inline] bpf_int_jit_compile+0x1be/0x1480 arch/x86/net/bpf_jit_comp.c:3761 bpf_prog_select_runtime+0x4a3/0x810 kernel/bpf/core.c:2547 bpf_prog_load+0x14b3/0x1ae0 kernel/bpf/syscall.c:3093 __sys_bpf+0x618/0x950 kernel/bpf/syscall.c:6228 __do_sys_bpf kernel/bpf/syscall.c:6341 [inline] __se_sys_bpf kernel/bpf/syscall.c:6339 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6339 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2f78f9c799 RSP: 002b:00007f2f79f11028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f2f79215fa0 RCX: 00007f2f78f9c799 RDX: 0000000000000094 RSI: 00002000000003c0 RDI: 0000000000000005 RBP: 00007f2f79032bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f2f79216038 R14: 00007f2f79215fa0 R15: 00007ffe1ac71fb8 net_ratelimit: 22074 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:f6:74:0d:f0:c7:ec, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f6:74:0d:f0:c7:ec, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f6:74:0d:f0:c7:ec, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f6:74:0d:f0:c7:ec, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f6:74:0d:f0:c7:ec, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f6:74:0d:f0:c7:ec, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f6:74:0d:f0:c7:ec, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f6:74:0d:f0:c7:ec, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f6:74:0d:f0:c7:ec, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f6:74:0d:f0:c7:ec, vlan:0)