bridge0: received packet on veth1_to_bridge with own address as source address (addr:c6:1e:13:7f:2d:83, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9084/1:b..l rcu: (detected by 1, t=10503 jiffies, g=37413, q=366 ncpus=2) task:syz-executor state:R running task stack:21768 pid:9084 tgid:9084 ppid:9065 task_flags:0x400140 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7256 irqentry_exit+0x6f/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:80 [inline] RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:102 [inline] RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline] RIP: 0010:unwind_next_frame+0x130e/0x2390 arch/x86/kernel/unwind_orc.c:494 Code: c1 e8 3f 48 01 c8 48 83 e0 fe 4c 8d 3c 45 00 00 00 00 49 01 ef 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 75 27 49 63 07 4c 01 f8 49 8d 4f 04 4c 39 e0 48 0f 46 e9 49 RSP: 0018:ffffc900042273f8 EFLAGS: 00000a07 RAX: 0000000000000000 RBX: ffffffff8fb982bc RCX: dffffc0000000000 RDX: ffffffff8fb9829c RSI: ffffffff90385bea RDI: ffffffff8bc0ce00 RBP: ffffffff8fb9829c R08: 0000000000000009 R09: ffffffff8173bd25 R10: ffffc90004227518 R11: ffffffff81ac5cd0 R12: ffffffff821a8190 R13: ffffffff8fb9829c R14: ffffc900042274c8 R15: ffffffff8fb982ac arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 save_stack+0xf5/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:308 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2906 discard_slab mm/slub.c:3302 [inline] __put_partials+0x146/0x170 mm/slub.c:3849 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3924 __slab_free+0x2b9/0x390 mm/slub.c:5883 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:408 kasan_kmalloc include/linux/kasan.h:262 [inline] __do_kmalloc_node mm/slub.c:5604 [inline] __kmalloc_noprof+0x411/0x7f0 mm/slub.c:5616 kmalloc_noprof include/linux/slab.h:961 [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:2416 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/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f77bdf8d5ba RSP: 002b:00007ffc0f562018 EFLAGS: 00000206 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f77bdf8d5ba RDX: 00007ffc0f562020 RSI: 00007f77be04ef42 RDI: 0000000000000003 RBP: 00007ffc0f562020 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001000 R11: 0000000000000206 R12: 00007ffc0f563220 R13: 00007f77be011d7d R14: 000000000005818f R15: 00007ffc0f563260 bridge0: received packet on veth1_to_bridge with own address as source address (addr:c6:1e:13:7f:2d:83, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:c6:1e:13:7f:2d:83, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:c6:1e:13:7f:2d:83, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:c6:1e:13:7f:2d:83, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:c6:1e:13:7f:2d:83, vlan:0) net_ratelimit: 20764 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:c6:1e:13:7f:2d:83, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:c6:1e:13:7f:2d:83, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:c6:1e:13:7f:2d:83, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:c6:1e:13:7f:2d:83, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:c6:1e:13:7f:2d:83, vlan:0)