bridge0: received packet on veth0_to_bridge with own address as source address (addr:16:2f:09:7d:d7:34, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5851/1:b..l rcu: (detected by 0, t=10503 jiffies, g=68089, q=1382 ncpus=2) task:syz-executor state:R running task stack:21528 pid:5851 tgid:5851 ppid:5826 task_flags:0x400140 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5396 [inline] __schedule+0x16f5/0x4d00 kernel/sched/core.c:6785 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7108 irqentry_exit+0x6f/0x90 kernel/entry/common.c:307 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_is_held_type+0x137/0x190 kernel/locking/lockdep.c:5948 Code: 01 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 4c 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 05 49 03 36 07 <48> 3b 44 24 08 75 43 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f RSP: 0018:ffffc900042af6f8 EFLAGS: 00000206 RAX: 48658d8afed0e500 RBX: 0000000000000001 RCX: 48658d8afed0e500 RDX: 0000000000000000 RSI: ffffffff8db6ef1c RDI: ffffffff8be28f00 RBP: 00000000ffffffff R08: 0000000000000000 R09: ffffffff822d254e R10: 000000000000000d R11: ffffffff81ace6a0 R12: 0000000000000246 R13: ffff888026f49e00 R14: ffffffff8e13ee60 R15: 0000000000000002 lookup_page_ext mm/page_ext.c:254 [inline] page_ext_lookup+0xe7/0x180 mm/page_ext.c:520 page_ext_iter_begin include/linux/page_ext.h:132 [inline] __update_page_owner_free_handle+0x103/0x470 mm/page_owner.c:272 __reset_page_owner+0x85/0x1f0 mm/page_owner.c:309 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1248 [inline] __free_frozen_pages+0xc71/0xe70 mm/page_alloc.c:2706 __slab_free+0x326/0x400 mm/slub.c:4554 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x22/0xb0 mm/kasan/common.c:385 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4328 [inline] __kmalloc_noprof+0x27a/0x4f0 mm/slub.c:4340 kmalloc_noprof include/linux/slab.h:909 [inline] tomoyo_realpath_from_path+0xe3/0x5d0 security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x213/0x4b0 security/tomoyo/file.c:822 security_inode_getattr+0x12f/0x330 security/security.c:2377 vfs_getattr fs/stat.c:259 [inline] vfs_fstat fs/stat.c:281 [inline] vfs_fstatat+0xb1/0x170 fs/stat.c:373 __do_sys_newfstatat fs/stat.c:542 [inline] __se_sys_newfstatat fs/stat.c:536 [inline] __x64_sys_newfstatat+0x116/0x190 fs/stat.c:536 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f441618d13a RSP: 002b:00007f44164dfce8 EFLAGS: 00000206 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f441618d13a RDX: 00007f44164dfcf0 RSI: 00007f441624d582 RDI: 0000000000000003 RBP: 00007f44164dfcf0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001000 R11: 0000000000000206 R12: 0000000000000198 R13: 0000000000000000 R14: 000000000008a829 R15: 00007f44164dfe40 net_ratelimit: 14861 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:16:2f:09:7d:d7:34, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:4a:7a:2d:74:da:02, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:16:2f:09:7d:d7:34, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:4a:7a:2d:74:da:02, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:16:2f:09:7d:d7:34, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:16:2f:09:7d:d7:34, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:4a:7a:2d:74:da:02, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:16:2f:09:7d:d7:34, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:4a:7a:2d:74:da:02, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:16:2f:09:7d:d7:34, vlan:0)