bridge0: received packet on veth1_to_bridge 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): P26678/1:b..l rcu: (detected by 1, t=10503 jiffies, g=168477, q=1967 ncpus=2) task:syz.5.5062 state:R running task stack:28808 pid:26678 tgid:26676 ppid:19700 task_flags:0x400040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5510 [inline] __schedule+0x17d4/0x5630 kernel/sched/core.c:7239 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7561 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x910 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:lock_acquire+0x222/0x350 kernel/locking/lockdep.c:5890 Code: ff ff ff e8 00 44 36 0a f7 44 24 08 00 02 00 00 0f 84 39 ff ff ff 65 48 8b 05 52 4f cd 11 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 27 28 b9 RSP: 0018:ffffc90004257780 EFLAGS: 00000282 RAX: dff1b7172dd3b400 RBX: 0000000000000000 RCX: 0000000000000046 RDX: 00000000e2c920d4 RSI: ffffffff8e4ddc18 RDI: ffffffff8c4cd780 RBP: ffffffff8177710f R08: ffffffff8177710f R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8eb5a1e0 R12: 0000000000000002 R13: ffffffff8eb5a1e0 R14: 0000000000000000 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:300 [inline] rcu_read_lock include/linux/rcupdate.h:840 [inline] class_rcu_constructor include/linux/rcupdate.h:1183 [inline] unwind_next_frame+0xac/0x2550 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:1406 [inline] __free_frozen_pages+0xc22/0xd20 mm/page_alloc.c:2950 __slab_free+0x274/0x2c0 mm/slub.c:5741 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:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4584 [inline] slab_alloc_node mm/slub.c:4917 [inline] kmem_cache_alloc_noprof+0x2a4/0x5f0 mm/slub.c:4931 lsm_inode_alloc security/security.c:254 [inline] security_inode_alloc+0x39/0x310 security/security.c:1215 inode_init_always_gfp+0x97e/0xd30 fs/inode.c:298 inode_init_always include/linux/fs.h:2951 [inline] alloc_inode+0x82/0x1b0 fs/inode.c:345 new_inode_pseudo include/linux/fs.h:3030 [inline] sock_alloc net/socket.c:710 [inline] __sock_create+0x12d/0x9d0 net/socket.c:1640 sock_create net/socket.c:1734 [inline] __sys_socket_create net/socket.c:1771 [inline] __sys_socket+0xd6/0x1b0 net/socket.c:1818 __do_sys_socket net/socket.c:1832 [inline] __se_sys_socket net/socket.c:1830 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1830 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: 0033:0x7f0b2339e159 RSP: 002b:00007f0b2418c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f0b23626090 RCX: 00007f0b2339e159 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000001 RBP: 00007f0b23435024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f0b23626128 R14: 00007f0b23626090 R15: 00007ffd3ca91d58 net_ratelimit: 13417 callbacks suppressed bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 13934 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)