bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:56:6e:37:1d:a8, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8383/1:b..l rcu: (detected by 1, t=10502 jiffies, g=21325, q=913 ncpus=2) task:syz.3.665 state:R running task stack:28040 pid:8383 tgid:8382 ppid:5842 task_flags:0x400040 flags:0x00080001 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:lock_acquire+0x175/0x360 kernel/locking/lockdep.c:5872 Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 ab fc d0 10 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc9001b587770 EFLAGS: 00000206 RAX: 52c9594fcafdd400 RBX: 0000000000000000 RCX: 52c9594fcafdd400 RDX: 0000000000000000 RSI: ffffffff8d8f46a3 RDI: ffffffff8bbf0760 RBP: ffffffff8230c442 R08: 0000000000000000 R09: ffffffff8230c442 R10: dffffc0000000000 R11: fffff94000285b0f R12: 0000000000000002 R13: ffffffff8df3d660 R14: 0000000000000000 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:867 [inline] page_ext_get+0x3e/0x2f0 mm/page_ext.c:527 __reset_page_owner+0x28/0x1f0 mm/page_owner.c:297 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:3326 [inline] __put_partials+0x146/0x170 mm/slub.c:3872 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3947 __slab_free+0x2b9/0x390 mm/slub.c:5921 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:5642 [inline] __kmalloc_noprof+0x411/0x7f0 mm/slub.c:5654 kmalloc_noprof include/linux/slab.h:961 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] tomoyo_encode2 security/tomoyo/realpath.c:45 [inline] tomoyo_encode+0x28b/0x550 security/tomoyo/realpath.c:80 tomoyo_realpath_from_path+0x58d/0x5d0 security/tomoyo/realpath.c:283 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_number_perm+0x1e8/0x5a0 security/tomoyo/file.c:723 security_file_ioctl+0xcb/0x2d0 security/security.c:2982 __do_sys_ioctl fs/ioctl.c:591 [inline] __se_sys_ioctl+0x47/0x170 fs/ioctl.c:583 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: 0033:0x7fe9ceb8f2cb RSP: 002b:00007fe9cfa51050 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe9cede6038 RCX: 00007fe9ceb8f2cb RDX: 0000000000000000 RSI: 0000000000006364 RDI: 00000000000000d8 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff99eae577 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fe9cede6038 R14: 00007fff99eae490 R15: 00007fff99eae578 bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:56:6e:37:1d:a8, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:56:6e:37:1d:a8, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:56:6e:37:1d:a8, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:56:6e:37:1d:a8, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:56:6e:37:1d:a8, vlan:0) net_ratelimit: 12239 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:56:6e:37:1d:a8, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:56:6e:37:1d:a8, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:56:6e:37:1d:a8, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:56:6e:37:1d:a8, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:da:56:6e:37:1d:a8, vlan:0)