bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:d2:8e:85:f9:5a, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P12530/1:b..l rcu: (detected by 0, t=10503 jiffies, g=158609, q=243 ncpus=2) task:udevd state:R running task stack:26296 pid:12530 tgid:12530 ppid:4990 task_flags:0x400140 flags:0x00080800 Call Trace: context_switch kernel/sched/core.c:5504 [inline] __schedule+0x17d9/0x56c0 kernel/sched/core.c:7228 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7552 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x8f0 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:lock_release+0x0/0x3c0 kernel/locking/lockdep.c:5876 Code: bf 00 00 50 00 e9 4f fe ff ff 41 bf 2f 00 00 00 e9 06 ff ff ff 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 41 57 41 56 41 55 41 54 53 48 83 ec 30 49 89 f5 49 RSP: 0018:ffffc90004b1f3d8 EFLAGS: 00000293 RAX: ffffffff823f3c07 RBX: 0000000000000000 RCX: ffff888034bebe00 RDX: 0000000000000000 RSI: ffffffff823f393a RDI: ffffffff8e959ba0 RBP: dffffc0000000000 R08: ffff88801f98e74f R09: 1ffff11003f31ce9 R10: dffffc0000000000 R11: ffffed1003f31cea R12: ffffffff823f393a R13: 000000000009cfb1 R14: dffffc0000000000 R15: ffff88801f98e750 rcu_lock_release include/linux/rcupdate.h:310 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] __page_table_check_zero+0x397/0x3e0 mm/page_table_check.c:145 page_table_check_free include/linux/page_table_check.h:46 [inline] __free_pages_prepare mm/page_alloc.c:1407 [inline] __free_frozen_pages+0xc2f/0xd10 mm/page_alloc.c:2950 __slab_free+0x274/0x2c0 mm/slub.c:5672 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:4610 [inline] slab_alloc_node mm/slub.c:4939 [inline] __do_kmalloc_node mm/slub.c:5333 [inline] __kmalloc_noprof+0x312/0x750 mm/slub.c:5347 _kmalloc_noprof include/linux/slab.h:973 [inline] _kzalloc_noprof include/linux/slab.h:1286 [inline] tomoyo_encode2 security/tomoyo/realpath.c:45 [inline] tomoyo_encode+0x2ad/0x570 security/tomoyo/realpath.c:80 tomoyo_realpath_from_path+0x5fa/0x640 security/tomoyo/realpath.c:283 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_check_open_permission+0x229/0x470 security/tomoyo/file.c:776 security_file_open+0xa9/0x240 security/security.c:2739 do_dentry_open+0x4a0/0x1380 fs/open.c:924 vfs_open+0x3b/0x340 fs/open.c:1079 do_open fs/namei.c:4700 [inline] path_openat+0x2e44/0x3830 fs/namei.c:4859 do_file_open+0x23e/0x4a0 fs/namei.c:4888 do_sys_openat2+0x115/0x200 fs/open.c:1395 do_sys_open fs/open.c:1401 [inline] __do_sys_openat fs/open.c:1417 [inline] __se_sys_openat fs/open.c:1412 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1412 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ffab8aa7407 RSP: 002b:00007fffa952a0e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ffab9178880 RCX: 00007ffab8aa7407 RDX: 0000000000080000 RSI: 0000557f19e5aa90 RDI: ffffffffffffff9c RBP: 0000557f19e5aa90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000009 bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:d2:8e:85:f9:5a, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:d2:8e:85:f9:5a, 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:42:d2:8e:85:f9:5a, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:d2:8e:85:f9:5a, vlan:0) net_ratelimit: 51994 callbacks suppressed 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:42:d2:8e:85:f9:5a, 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 veth0_to_bridge with own address as source address (addr:42:d2:8e:85:f9:5a, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:d2:8e:85:f9:5a, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:d2:8e:85:f9:5a, vlan:0)