bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:29:c7:96:8d:aa, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5354/1:b..l rcu: (detected by 0, t=10503 jiffies, g=154009, q=1987 ncpus=2) task:syz.0.8680 state:R running task stack:27672 pid:5354 tgid:5348 ppid:27761 task_flags:0x400040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5295 [inline] __schedule+0x15dd/0x52d0 kernel/sched/core.c:6908 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7235 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:__nr_to_section include/linux/mmzone.h:1976 [inline] RIP: 0010:__pfn_to_section include/linux/mmzone.h:2114 [inline] RIP: 0010:lookup_page_ext mm/page_ext.c:255 [inline] RIP: 0010:page_ext_lookup+0x66/0x180 mm/page_ext.c:513 Code: 00 00 00 fc ff df 4c 89 f7 4c 89 fe e8 43 97 89 ff 4d 39 fe 0f 83 ef 00 00 00 48 c7 c0 40 72 2d 9a 48 c1 e8 03 42 80 3c 28 00 <74> 0c 48 c7 c7 40 72 2d 9a e8 5c d6 f3 ff 48 8b 05 85 6d f1 17 48 RSP: 0018:ffffc900044e7390 EFLAGS: 00000246 RAX: 1ffffffff345ae48 RBX: 000000000008559f RCX: ffff88807f010000 RDX: 0000000000000002 RSI: 0000000000001000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff823c0efa R09: ffffffff8e7602e0 R10: dffffc0000000000 R11: ffffed100d46ed44 R12: 000000000008559f R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000001000 page_ext_iter_begin include/linux/page_ext.h:133 [inline] __page_table_check_zero+0x135/0x3e0 mm/page_table_check.c:139 page_table_check_free include/linux/page_table_check.h:46 [inline] __free_pages_prepare mm/page_alloc.c:1434 [inline] __free_frozen_pages+0xc3b/0xdb0 mm/page_alloc.c:2978 __slab_free+0x263/0x2b0 mm/slub.c:5551 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_kmalloc+0x22/0xb0 mm/kasan/common.c:406 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5238 [inline] __kmalloc_noprof+0x35c/0x760 mm/slub.c:5250 kmalloc_noprof include/linux/slab.h:954 [inline] kzalloc_noprof include/linux/slab.h:1188 [inline] __rds_conn_create+0x7f9/0x22d0 net/rds/connection.c:200 rds_conn_create_outgoing+0x43/0x60 net/rds/connection.c:377 rds_sendmsg+0xff5/0x2150 net/rds/send.c:1321 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] ____sys_sendmsg+0x972/0x9f0 net/socket.c:2592 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2646 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2683 [inline] __se_sys_sendmsg net/socket.c:2681 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2681 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9e9259c799 RSP: 002b:00007f9e9339c028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9e92816090 RCX: 00007f9e9259c799 RDX: 0000000004000000 RSI: 0000200000001600 RDI: 0000000000000004 RBP: 00007f9e92632c99 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9e92816128 R14: 00007f9e92816090 R15: 00007fff4df54ce8 net_ratelimit: 18238 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:29:c7:96:8d:aa, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:29:c7:96:8d:aa, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:29:c7:96:8d:aa, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:29:c7:96:8d:aa, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:29:c7:96:8d:aa, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:29:c7:96:8d:aa, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:29:c7:96:8d:aa, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:29:c7:96:8d:aa, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:29:c7:96:8d:aa, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:29:c7:96:8d:aa, vlan:0)