bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6103/1:b..l rcu: (detected by 0, t=10503 jiffies, g=12653, q=1583 ncpus=2) task:syz.1.75 state:R running task stack:23904 pid:6103 tgid:6101 ppid:5820 task_flags:0x40054c flags:0x00080001 Call Trace: context_switch kernel/sched/core.c:5295 [inline] __schedule+0x1539/0x5110 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:on_stack arch/x86/include/asm/stacktrace.h:-1 [inline] RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:409 [inline] RIP: 0010:deref_stack_reg+0x4f/0x230 arch/x86/kernel/unwind_orc.c:419 Code: 5f 08 49 89 dc 49 c1 ec 03 41 80 3c 34 00 4c 89 04 24 74 16 48 89 df e8 1f cf b8 00 4c 8b 04 24 48 be 00 00 00 00 00 fc ff df <48> 89 5c 24 10 49 8b 5f 08 4d 8d 77 10 4d 89 f5 49 c1 ed 03 41 80 RSP: 0018:ffffc9000afbf160 EFLAGS: 00000246 RAX: fffffffffffffff0 RBX: ffffc9000afbf290 RCX: 0000000000000000 RDX: ffffc9000afbf2c8 RSI: dffffc0000000000 RDI: ffffc9000afbf288 RBP: dffffc0000000000 R08: ffffc9000afbf3b0 R09: 0000000000000000 R10: ffffc9000afbf2d8 R11: fffff520015f7e5d R12: 1ffff920015f7e52 R13: 1ffff920015f7e53 R14: ffffc9000afbf288 R15: ffffc9000afbf288 unwind_next_frame+0x18c6/0x23c0 arch/x86/kernel/unwind_orc.c:-1 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:1432 [inline] __free_frozen_pages+0xc01/0xd80 mm/page_alloc.c:2972 __slab_free+0x263/0x2b0 mm/slub.c:5487 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_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4456 [inline] slab_alloc_node mm/slub.c:4785 [inline] __kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5289 kmalloc_noprof include/linux/slab.h:962 [inline] kzalloc_noprof include/linux/slab.h:1204 [inline] kobject_uevent_env+0x28c/0x9e0 lib/kobject_uevent.c:540 kvm_uevent_notify_change+0x300/0x3a0 virt/kvm/kvm_main.c:6356 kvm_destroy_vm virt/kvm/kvm_main.c:1279 [inline] kvm_put_kvm+0xaa/0xa80 virt/kvm/kvm_main.c:1354 kvm_gmem_release+0x3a2/0x400 virt/kvm/guest_memfd.c:368 __fput+0x44f/0xa70 fs/file_table.c:469 task_work_run+0x1d9/0x270 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x69b/0x2310 kernel/exit.c:971 do_group_exit+0x21b/0x2d0 kernel/exit.c:1112 get_signal+0x1284/0x1330 kernel/signal.c:3034 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline] exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline] do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbc2099aeb9 RSP: 002b:00007fbc218450e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007fbc20c15fa8 RCX: 00007fbc2099aeb9 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fbc20c15fac RBP: 00007fbc20c15fa0 R08: 3fffffffffffffff R09: 0000000000000000 R10: 0000200000007000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbc20c16038 R14: 00007ffe6d5d9dd0 R15: 00007ffe6d5d9eb8 net_ratelimit: 14474 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 15241 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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 veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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:0c, vlan:0)