bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) batman_adv: batadv0: Local translation table size (96) exceeds maximum packet size (-320); Ignoring new local tt entry: aa:aa:aa:aa:aa:0c rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P14299/1:b..l rcu: (detected by 0, t=10503 jiffies, g=59553, q=384 ncpus=2) task:syz.7.2104 state:R running task stack:27432 pid:14299 tgid:14299 ppid:8667 task_flags:0x400040 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x116f/0x5de0 kernel/sched/core.c:6767 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7090 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire+0x62/0x350 kernel/locking/lockdep.c:5870 Code: e9 0b 12 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 02 d8 ec 0e 0f 82 74 02 00 00 8b 35 9a 07 ed 0e 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 d9 e8 0b 12 0f 85 c7 02 00 00 48 83 c4 RSP: 0018:ffffc900047774b8 EFLAGS: 00000206 RAX: 0000000000000046 RBX: ffffffff8e3bfc00 RCX: 0000000009f25c20 RDX: 0000000000000000 RSI: ffffffff8dbbd24b RDI: ffffffff8bf48920 RBP: 0000000000000002 R08: f72bc34f02f19e52 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] __update_page_owner_free_handle.constprop.0+0x4d/0x470 mm/page_owner.c:271 __reset_page_owner+0x93/0x1a0 mm/page_owner.c:309 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1262 [inline] __free_frozen_pages+0x69d/0xff0 mm/page_alloc.c:2725 discard_slab mm/slub.c:2716 [inline] __put_partials+0x16d/0x1c0 mm/slub.c:3185 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4147 [inline] kmem_cache_alloc_bulk_noprof+0x41a/0xbd0 mm/slub.c:5371 mt_alloc_bulk lib/maple_tree.c:181 [inline] mas_alloc_nodes+0x2f1/0x8b0 lib/maple_tree.c:1271 mas_node_count_gfp+0x105/0x130 lib/maple_tree.c:1331 mas_preallocate+0x53e/0xcd0 lib/maple_tree.c:5501 vma_iter_prealloc mm/vma.h:409 [inline] __split_vma+0x33b/0x1030 mm/vma.c:490 split_vma mm/vma.c:553 [inline] vma_modify+0x3b4/0x510 mm/vma.c:1579 vma_modify_flags+0x212/0x2d0 mm/vma.c:1605 mprotect_fixup+0x2b3/0xb10 mm/mprotect.c:658 do_mprotect_pkey+0x9ca/0xd50 mm/mprotect.c:832 __do_sys_mprotect mm/mprotect.c:853 [inline] __se_sys_mprotect mm/mprotect.c:850 [inline] __x64_sys_mprotect+0x78/0xc0 mm/mprotect.c:850 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f316358ea27 RSP: 002b:00007fffa73d3d48 EFLAGS: 00000206 ORIG_RAX: 000000000000000a RAX: ffffffffffffffda RBX: 00007f31643b36c0 RCX: 00007f316358ea27 RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007f3164394000 RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000 R10: 0000000000021000 R11: 0000000000000206 R12: 00007fffa73d3ea0 R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000 bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) batman_adv: batadv0: Local translation table size (96) exceeds maximum packet size (-320); Ignoring new local tt entry: aa:aa:aa:aa:aa:1b batman_adv: batadv0: Local translation table size (96) exceeds maximum packet size (-320); Ignoring new local tt entry: aa:aa:aa:aa:aa:3e bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) batman_adv: batadv0: Local translation table size (96) exceeds maximum packet size (-320); Ignoring new local tt entry: aa:aa:aa:aa:aa:0c bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) batman_adv: batadv0: Local translation table size (96) exceeds maximum packet size (-320); Ignoring new local tt entry: aa:aa:aa:aa:aa:1b batman_adv: batadv0: Local translation table size (96) exceeds maximum packet size (-320); Ignoring new local tt entry: aa:aa:aa:aa:aa:3e bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) batman_adv: batadv0: Local translation table size (96) exceeds maximum packet size (-320); Ignoring new local tt entry: aa:aa:aa:aa:aa:0c