bridge0: received packet on veth0_to_bridge with own address as source address (addr:52:cb:dc:a2:0f:07, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8040/1:b..l rcu: (detected by 0, t=10503 jiffies, g=29173, q=1961 ncpus=2) task:syz-executor state:R running task stack:28168 pid:8040 tgid:8040 ppid:6164 task_flags:0x400040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5295 [inline] __schedule+0x1585/0x5310 kernel/sched/core.c:6907 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7234 irqentry_exit+0x599/0x620 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:rcu_is_watching+0x67/0xb0 kernel/rcu/tree.c:753 Code: 89 f7 e8 fc d1 84 00 48 c7 c3 58 99 1c 93 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 34 8b 03 65 ff 0d 39 a9 70 11 <74> 11 83 e0 04 c1 e8 02 5b 41 5e 41 5f e9 17 12 06 0a cc e8 21 07 RSP: 0018:ffffc90003aafa58 EFLAGS: 00000286 RAX: 00000000003db514 RBX: ffff8880b8633958 RCX: 0000000080000001 RDX: ffff88802cd69e40 RSI: ffffffff8c2773e0 RDI: ffffffff8c2773a0 RBP: 0000000000000001 R08: ffffffff823bb932 R09: ffffffff8e760320 R10: dffffc0000000000 R11: fffff940002e338f R12: 0000000000000000 R13: 0000000000000000 R14: ffffffff8e1a5790 R15: dffffc0000000000 rcu_read_lock include/linux/rcupdate.h:851 [inline] page_ext_get+0x5b/0x2e0 mm/page_ext.c:531 __reset_page_owner+0x28/0x1f0 mm/page_owner.c:306 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1432 [inline] __free_frozen_pages+0xc01/0xd80 mm/page_alloc.c:2972 __slab_free+0x263/0x2b0 mm/slub.c:5487 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x100 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:4456 [inline] slab_alloc_node mm/slub.c:4785 [inline] __do_kmalloc_node mm/slub.c:5173 [inline] __kmalloc_node_track_caller_noprof+0x493/0x7b0 mm/slub.c:5282 kmemdup_noprof+0x2b/0x70 mm/util.c:138 kmemdup_noprof include/linux/fortify-string.h:763 [inline] shmem_symlink+0x1ab/0x470 mm/shmem.c:4134 vfs_symlink+0x195/0x340 fs/namei.c:5615 filename_symlinkat+0x1cd/0x410 fs/namei.c:5640 __do_sys_symlinkat fs/namei.c:5660 [inline] __se_sys_symlinkat+0x4e/0x2b0 fs/namei.c:5655 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f502e399f77 RSP: 002b:00007fffe536ea78 EFLAGS: 00000206 ORIG_RAX: 000000000000010a RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f502e399f77 RDX: 00007f502e40ac35 RSI: 00000000ffffff9c RDI: 00007fffe536eb10 RBP: 00007fffe536eabc R08: 0000000000000001 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000054 R13: 000055555cd019f0 R14: 00000000000520c3 R15: 00007fffe536eb10 net_ratelimit: 9339 callbacks suppressed 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:1b, 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:52:cb:dc:a2:0f:07, 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:1b, 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:52:cb:dc:a2:0f:07, 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:1b, vlan:0) net_ratelimit: 12045 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:52:cb:dc:a2:0f:07, 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:1b, 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:52:cb:dc:a2:0f:07, 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:1b, 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:52:cb:dc:a2:0f:07, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)