bridge0: received packet on  with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5849/1:b..l rcu: (detected by 0, t=10502 jiffies, g=39277, q=800 ncpus=2) task:syz-executor state:R running task stack:20024 pid:5849 tgid:5849 ppid:5843 task_flags:0x400140 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5397 [inline] __schedule+0x16f5/0x4d00 kernel/sched/core.c:6786 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7109 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:rcu_lock_release include/linux/rcupdate.h:341 [inline] RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:871 [inline] RIP: 0010:page_ext_put+0x90/0xc0 mm/page_ext.c:563 Code: 76 dc 92 ff eb 24 e8 6f dc 92 ff c6 05 fd 4f 5e 0d 01 48 c7 c7 40 ce 98 8b be 66 03 00 00 48 c7 c2 80 d0 98 8b e8 b0 19 71 ff <48> 8d 35 00 00 00 00 48 c7 c7 e0 f0 13 8e e8 8d ff 70 ff 5b e9 a7 RSP: 0018:ffffc90003fff380 EFLAGS: 00000293 RAX: ffffffff822d4c48 RBX: 0000000000000001 RCX: ffff88801ebf1e00 RDX: 0000000000000000 RSI: ffffffff8be28be0 RDI: ffffffff8be28ba0 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff822d4932 R10: dffffc0000000000 R11: fffff94000233dc7 R12: ffffea000119ee00 R13: ffffea000119ee08 R14: ffffea000119ee00 R15: 000000788265630b __reset_page_owner+0x67/0x1f0 mm/page_owner.c:300 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_slab_alloc+0x22/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4148 [inline] slab_alloc_node mm/slub.c:4197 [inline] __do_kmalloc_node mm/slub.c:4327 [inline] __kmalloc_noprof+0x224/0x4f0 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_check_open_permission+0x1c1/0x3b0 security/tomoyo/file.c:771 security_file_open+0xb1/0x270 security/security.c:3114 do_dentry_open+0x35e/0x1970 fs/open.c:941 vfs_open+0x3b/0x340 fs/open.c:1094 do_open fs/namei.c:3896 [inline] path_openat+0x2ee5/0x3830 fs/namei.c:4055 do_filp_open+0x1fa/0x410 fs/namei.c:4082 do_sys_openat2+0x121/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1463 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: 0033:0x7fb91938e2a1 RSP: 002b:00007ffeff790dd0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fb919410b55 RCX: 00007fb91938e2a1 RDX: 0000000000090800 RSI: 00007ffeff791f80 RDI: 00000000ffffff9c RBP: 00007ffeff791f6c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffeff791f80 R13: 00007fb919410b55 R14: 00000000000516fa R15: 00007ffeff791fc0 net_ratelimit: 32286 callbacks suppressed bridge0: received packet on  with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on  with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on  with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on  with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on  with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on  with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on  with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on  with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on  with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on  with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)