bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:d3:54:44:0d:4b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P7777/1:b..l rcu: (detected by 0, t=10503 jiffies, g=25917, q=4798 ncpus=2) task:syz.2.469 state:R running task stack:24056 pid:7777 tgid:7772 ppid:5850 task_flags:0x40044c flags:0x00080002 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:lock_release+0x2b5/0x3e0 kernel/locking/lockdep.c:5893 Code: 51 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 75 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 3b ca d0 10 <48> 3b 44 24 28 0f 85 8b 00 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc9000f437250 EFLAGS: 00000206 RAX: 9176c510caf83700 RBX: 0000000000000202 RCX: 9176c510caf83700 RDX: 0000000000000001 RSI: ffffffff8d8f3eb0 RDI: ffffffff8bbf0760 RBP: ffff888076d92998 R08: ffffc9000f437a10 R09: 0000000000000000 R10: ffffc9000f4373d8 R11: fffff52001e86e7d R12: 0000000000000001 R13: 0000000000000001 R14: ffffffff8df3d620 R15: ffff888076d91e40 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:897 [inline] class_rcu_destructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0x19a9/0x2390 arch/x86/kernel/unwind_orc.c:680 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:56 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:77 poison_kmalloc_redzone mm/kasan/common.c:400 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:417 kasan_kmalloc include/linux/kasan.h:262 [inline] __kmalloc_cache_noprof+0x3d5/0x6f0 mm/slub.c:5763 kmalloc_noprof include/linux/slab.h:957 [inline] slab_free_hook mm/slub.c:2491 [inline] slab_free mm/slub.c:6630 [inline] kmem_cache_free+0x16f/0x690 mm/slub.c:6740 exit_mmap+0x537/0xb40 mm/mmap.c:1305 __mmput+0x118/0x430 kernel/fork.c:1133 exit_mm+0x1da/0x2c0 kernel/exit.c:582 do_exit+0x648/0x2300 kernel/exit.c:954 do_group_exit+0x21c/0x2d0 kernel/exit.c:1107 get_signal+0x1285/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc8e7b8efc9 RSP: 002b:00007fc8e8a9d0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fc8e7de6188 RCX: 00007fc8e7b8efc9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc8e7de6188 RBP: 00007fc8e7de6180 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc8e7de6218 R14: 00007fc8e7f0f940 R15: 00007fc8e7f0fa28 net_ratelimit: 16003 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:d3:54:44:0d:4b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:d3:54:44:0d:4b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:d3:54:44:0d:4b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:d3:54:44:0d:4b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:d3:54:44:0d:4b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:d3:54:44:0d:4b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:d3:54:44:0d:4b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:d3:54:44:0d:4b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:d3:54:44:0d:4b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:d3:54:44:0d:4b, vlan:0)