bridge0: received packet on veth1_to_bridge with own address as source address (addr:82:81:37:70:c0:c2, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:82:81:37:70:c0:c2, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:82:81:37:70:c0:c2, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P23909/1:b..l P23904/1:b..l rcu: (detected by 0, t=10573 jiffies, g=125949, q=2082 ncpus=2) task:syz.1.4555 state:R running task stack:24032 pid:23904 tgid:23904 ppid:18107 task_flags:0x400040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5533 [inline] __schedule+0x17db/0x58f0 kernel/sched/core.c:7284 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7606 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x920 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:__asan_memset+0x5/0x50 mm/kasan/shadow.c:83 Code: 01 00 00 00 e9 5c e5 ff ff 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <41> 56 53 48 89 d3 89 f5 49 89 fe 48 8b 4c 24 18 48 89 d6 ba 01 00 RSP: 0018:ffffc90011b36c70 EFLAGS: 00000246 RAX: ffffc90011b37f48 RBX: ffffc90011b36d78 RCX: 1ffff92002366d01 RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90011b36d78 RBP: 1ffffffff257c272 R08: ffffc90011b37f48 R09: 0000000000000000 R10: ffffc90011b36d78 R11: ffffffff81b2c5e0 R12: dffffc0000000000 R13: ffffffff92be1392 R14: ffffc90011b36d28 R15: ffffc90011b36d70 unwind_next_frame+0xd04/0x2550 arch/x86/kernel/unwind_orc.c:621 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:183 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:338 reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 __slab_free+0x274/0x2c0 mm/slub.c:5823 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:361 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4683 [inline] slab_alloc_node mm/slub.c:4996 [inline] kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010 vm_area_dup+0x28/0x760 mm/vma_init.c:128 __split_vma+0x1d7/0xa60 mm/vma.c:560 vms_gather_munmap_vmas+0x4e3/0x1370 mm/vma.c:1528 __mmap_setup mm/vma.c:2561 [inline] __mmap_region mm/vma.c:2884 [inline] mmap_region+0x925/0x25b0 mm/vma.c:2989 do_mmap+0xe0a/0x1300 mm/mmap.c:573 vm_mmap_pgoff+0x272/0x4e0 mm/util.c:581 ksys_mmap_pgoff+0x4dc/0x760 mm/mmap.c:619 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc80479f2c2 RSP: 002b:00007fff2d8fae28 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fc8025f6000 RCX: 00007fc80479f2c2 RDX: 0000000000000003 RSI: 0000000000400000 RDI: 00007fc8025f6000 RBP: 0000000000000011 R08: 00000000000000db R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000206 R12: 0000000000000003 R13: 0000000000000003 R14: 0000000000000000 R15: 00007fc804a25fa0 task:syz-executor state:R running task stack:26792 pid:23909 tgid:23909 ppid:17721 task_flags:0x40044c flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5533 [inline] __schedule+0x17db/0x58f0 kernel/sched/core.c:7284 preempt_schedule_common+0x7f/0xd0 kernel/sched/core.c:7463 preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12 __raw_spin_unlock include/linux/spinlock_api_smp.h:201 [inline] _raw_spin_unlock+0x41/0x50 kernel/locking/spinlock.c:213 spin_unlock include/linux/spinlock.h:401 [inline] zap_pte_range mm/memory.c:2095 [inline] zap_pmd_range mm/memory.c:2151 [inline] zap_pud_range mm/memory.c:2179 [inline] zap_p4d_range mm/memory.c:2200 [inline] __zap_vma_range+0x40e1/0x4f80 mm/memory.c:2240 unmap_vmas+0x390/0x550 mm/memory.c:2309 exit_mmap+0x293/0x9f0 mm/mmap.c:1315 __mmput+0x118/0x420 kernel/fork.c:1193 exit_mm+0x18e/0x240 kernel/exit.c:592 do_exit+0x6cd/0x2360 kernel/exit.c:974 do_group_exit+0x22d/0x2f0 kernel/exit.c:1129 get_signal+0x121b/0x12c0 kernel/signal.c:3112 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline] exit_to_user_mode_loop+0x10e/0x770 kernel/entry/common.c:101 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline] ret_from_fork+0x593/0xb70 arch/x86/kernel/process.c:167 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 net_ratelimit: 3650 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:82:81:37:70:c0:c2, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:82:81:37:70:c0:c2, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:82:81:37:70:c0:c2, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:82:81:37:70:c0:c2, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:82:81:37:70:c0:c2, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:82:81:37:70:c0:c2, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:82:81:37:70:c0:c2, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:82:81:37:70:c0:c2, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:82:81:37:70:c0:c2, vlan:0)