bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P15114/1:b..l rcu: (detected by 0, t=10503 jiffies, g=72253, q=484 ncpus=2) task:syz-executor state:R running task stack:21504 pid:15114 tgid:15114 ppid:1 task_flags:0x400140 flags:0x00080003 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7256 irqentry_exit+0x6f/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:unwind_next_frame+0x655/0x2390 arch/x86/kernel/unwind_orc.c:517 Code: 0f 84 5b 10 00 00 48 83 c7 10 e9 73 01 00 00 83 fb 04 0f 84 7b 01 00 00 83 fb 05 0f 85 36 0c 00 00 48 8b 44 24 58 80 3c 28 00 <74> 11 4c 89 ff e8 71 33 b2 00 48 8b 34 24 48 8b 54 24 08 4d 8b 27 RSP: 0018:ffffc9000c137318 EFLAGS: 00000246 RAX: 1ffff92001826e84 RBX: 0000000000000005 RCX: ffffffff8f9abb94 RDX: ffffffff901a4fde RSI: ffffffff901a4fe2 RDI: ffffffff8bbf0700 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffffff81738c45 R10: ffffc9000c137438 R11: ffffffff81ac2ea0 R12: ffffffff901a4fe3 R13: ffffc9000c137438 R14: ffffc9000c1373e8 R15: ffffc9000c137420 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 save_stack+0xf5/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:311 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2906 discard_slab mm/slub.c:3330 [inline] __put_partials+0x146/0x170 mm/slub.c:3876 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3951 __slab_free+0x2b9/0x390 mm/slub.c:5929 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5766 kmalloc_noprof include/linux/slab.h:957 [inline] alloc_fdtable+0xc0/0x2c0 fs/file.c:215 dup_fd+0x86c/0xb60 fs/file.c:420 copy_files+0xc9/0x120 kernel/fork.c:1595 copy_process+0x15b2/0x3c00 kernel/fork.c:2169 kernel_clone+0x21e/0x840 kernel/fork.c:2609 __do_sys_clone kernel/fork.c:2750 [inline] __se_sys_clone kernel/fork.c:2734 [inline] __x64_sys_clone+0x18b/0x1e0 kernel/fork.c:2734 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3daef85e93 RSP: 002b:00007ffc81ba2d28 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3daef85e93 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 0000555575e9b7d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000000927c0 R14: 000000000007732d R15: 00007ffc81ba2ec0 net_ratelimit: 17074 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) net_ratelimit: 18450 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)