bridge0: received packet on veth0_to_bridge with own address as source address (addr:3a:9c:87:ae:16:8d, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5862/1:b..l rcu: (detected by 1, t=10502 jiffies, g=11553, q=1012 ncpus=2) task:syz-executor state:R running task stack:19512 pid:5862 tgid:5862 ppid:5839 task_flags:0x400140 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x1b88/0x5240 kernel/sched/core.c:6767 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_release+0x8c/0x3e0 kernel/locking/lockdep.c:5879 Code: 9b c1 0e 00 0f 84 d4 01 00 00 65 8b 05 9d 23 ca 11 85 c0 0f 85 c5 01 00 00 65 4c 8b 2c 25 08 60 68 93 41 83 bd ec 0a 00 00 00 <0f> 85 ae 01 00 00 48 c7 c0 d0 f6 2b 94 49 39 07 0f 84 9e 01 00 00 RSP: 0018:ffffc90003f9f320 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffffff93686020 RCX: ffff8880751bbc00 RDX: dffffc0000000000 RSI: ffffffff8ca1b6a0 RDI: ffffffff8ca1b660 RBP: ffffffff816d9bc8 R08: ffffc90003f9fa00 R09: 0000000000000000 R10: ffffc90003f9f4b0 R11: fffff520007f3e98 R12: ffffc90003f9f470 R13: ffff8880751bbc00 R14: ffffc90003f9fa10 R15: ffffffff8ed3df20 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x1a9f/0x23b0 arch/x86/kernel/unwind_orc.c:680 arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122 save_stack+0xfc/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x76/0x1e0 mm/page_owner.c:308 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1262 [inline] __free_frozen_pages+0xde8/0x10a0 mm/page_alloc.c:2725 discard_slab mm/slub.c:2730 [inline] __put_partials+0x160/0x1c0 mm/slub.c:3199 put_cpu_partial+0x17e/0x250 mm/slub.c:3274 __slab_free+0x294/0x390 mm/slub.c:4526 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x23/0xb0 mm/kasan/common.c:385 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4341 [inline] __kmalloc_noprof+0x28e/0x4d0 mm/slub.c:4353 kmalloc_noprof include/linux/slab.h:909 [inline] tomoyo_realpath_from_path+0xcf/0x5e0 security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x2be/0x640 security/tomoyo/file.c:822 security_inode_getattr+0x130/0x330 security/security.c:2377 vfs_getattr fs/stat.c:256 [inline] vfs_fstat fs/stat.c:278 [inline] vfs_fstatat+0xa5/0x150 fs/stat.c:370 __do_sys_newfstatat fs/stat.c:536 [inline] __se_sys_newfstatat fs/stat.c:530 [inline] __x64_sys_newfstatat+0x11f/0x1a0 fs/stat.c:530 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8b1518d17a RSP: 002b:00007f8b154debf8 EFLAGS: 00000206 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8b1518d17a RDX: 00007f8b154dec00 RSI: 00007f8b1524d342 RDI: 0000000000000003 RBP: 00007f8b154dec00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001000 R11: 0000000000000206 R12: 00007f8b154dfe00 R13: 00007f8b1521089d R14: 000000000001a808 R15: 00007f8b154dfe40 net_ratelimit: 14720 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:3a:9c:87:ae:16:8d, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:3a:9c:87:ae:16:8d, 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: 15234 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:3a:9c:87:ae:16:8d, 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:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:3a:9c:87:ae:16:8d, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:3a:9c:87:ae:16:8d, vlan:0)