syzbot

bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:9b:9c:d9:a5:b5, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P13486/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=149985, q=748 ncpus=2)
task:kworker/u10:4   state:R  running task     stack:29848 pid:13486 tgid:13486 ppid:2      task_flags:0x8040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5298 [inline]
 __schedule+0xfee/0x6120 kernel/sched/core.c:6911
 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7238
 irqentry_exit+0x17b/0x670 kernel/entry/common.c:239
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:unwind_next_frame+0xe45/0x1ea0 arch/x86/kernel/unwind_orc.c:679
Code: 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 ee 0d 00 00 49 89 6d 40 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e d3 0d 00 00 41 39 5d 00 0f 84
RSP: 0018:ffffc900055bf998 EFLAGS: 00000a06
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff91add644
RDX: 1ffff92000ab7f41 RSI: ffffc900055bfdf8 RDI: ffffc900055bfa48
RBP: ffff88802378de00 R08: 0000000000000001 R09: 0000000000000007
R10: 0000000000000200 R11: 000000000003a684 R12: ffffc900055bfa58
R13: ffffc900055bfa08 R14: ffffc900055bfe10 R15: ffffc900055bfa3c
 arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 save_stack+0x162/0x1e0 mm/page_owner.c:165
 __reset_page_owner+0x84/0x190 mm/page_owner.c:320
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1433 [inline]
 __free_frozen_pages+0x7e1/0x10d0 mm/page_alloc.c:2978
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xe0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:350
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4538 [inline]
 slab_alloc_node mm/slub.c:4866 [inline]
 __do_kmalloc_node mm/slub.c:5259 [inline]
 __kmalloc_noprof+0x2b9/0x850 mm/slub.c:5272
 kmalloc_noprof include/linux/slab.h:954 [inline]
 kzalloc_noprof include/linux/slab.h:1188 [inline]
 lsm_blob_alloc+0x68/0x90 security/security.c:193
 lsm_cred_alloc security/security.c:210 [inline]
 security_prepare_creds+0x2d/0x290 security/security.c:2764
 prepare_kernel_cred+0x50d/0x8b0 kernel/cred.c:596
 call_usermodehelper_exec_async+0xee/0x4b0 kernel/umh.c:88
 ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:9b:9c:d9:a5:b5, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:9b:9c:d9:a5:b5, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:9b:9c:d9:a5:b5, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:9b:9c:d9:a5:b5, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:9b:9c:d9:a5:b5, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:9b:9c:d9:a5:b5, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:9b:9c:d9:a5:b5, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:9b:9c:d9:a5:b5, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:9b:9c:d9:a5:b5, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:ee:9b:9c:d9:a5:b5, vlan:0)