bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:6f:8b:8f:0c:ac, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8587/1:b..l rcu: (detected by 0, t=10503 jiffies, g=165625, q=3632 ncpus=2) task:syz-executor state:R running task stack:28192 pid:8587 tgid:8587 ppid:6615 task_flags:0x400040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5295 [inline] __schedule+0x15dd/0x52d0 kernel/sched/core.c:6908 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7235 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:lock_release+0x7f/0x3d0 kernel/locking/lockdep.c:5881 Code: b6 15 70 0e 00 0f 84 1c 02 00 00 65 8b 05 99 81 7a 11 85 c0 0f 85 0d 02 00 00 65 4c 8b 3d e1 3b 7a 11 41 83 bf 54 0b 00 00 00 <0f> 85 f7 01 00 00 49 81 3e 20 c4 df 93 0f 84 ea 01 00 00 9c 5b fa RSP: 0018:ffffc900033976d0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffffff90b3d101 RCX: 0000000080000001 RDX: ffffc90003397801 RSI: ffffffff8c27b260 RDI: ffffffff8c27b220 RBP: dffffc0000000000 R08: ffffc90003397b98 R09: 0000000000000000 R10: ffffc90003397858 R11: fffff52000672f0d R12: ffffc90003397ba8 R13: ffffffff81767a45 R14: ffffffff8e7602e0 R15: ffff888039fcdb80 rcu_lock_release include/linux/rcupdate.h:322 [inline] rcu_read_unlock include/linux/rcupdate.h:881 [inline] class_rcu_destructor include/linux/rcupdate.h:1193 [inline] unwind_next_frame+0x1aaa/0x23c0 arch/x86/kernel/unwind_orc.c:695 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 unpoison_slab_object mm/kasan/common.c:340 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4515 [inline] slab_alloc_node mm/slub.c:4844 [inline] kmem_cache_alloc_lru_noprof+0x2b8/0x640 mm/slub.c:4863 shmem_alloc_inode+0x28/0x40 mm/shmem.c:5167 alloc_inode+0x6a/0x1b0 fs/inode.c:347 new_inode+0x22/0x170 fs/inode.c:1185 __shmem_get_inode mm/shmem.c:3079 [inline] shmem_get_inode+0x347/0xe60 mm/shmem.c:3154 shmem_symlink+0xa3/0x470 mm/shmem.c:4117 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: 0033:0x7fddb2f9b857 RSP: 002b:00007ffe2a2073b8 EFLAGS: 00000206 ORIG_RAX: 000000000000010a RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fddb2f9b857 RDX: 00007fddb3033b92 RSI: 00000000ffffff9c RDI: 00007ffe2a207450 RBP: 00007ffe2a2073fc R08: 0000000000000001 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000061 R13: 00000000000927c0 R14: 00000000000ca194 R15: 00007ffe2a207450 bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:6f:8b:8f:0c:ac, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:6f:8b:8f:0c:ac, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:6f:8b:8f:0c:ac, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:6f:8b:8f:0c:ac, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:6f:8b:8f:0c:ac, vlan:0) net_ratelimit: 11267 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:6f:8b:8f:0c:ac, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:6f:8b:8f:0c:ac, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:6f:8b:8f:0c:ac, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:6f:8b:8f:0c:ac, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:32:6f:8b:8f:0c:ac, vlan:0)