netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'.
ODEBUG: free active (active state 0) object type: rcu_head hint:           (null)
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10114 at lib/debugobjects.c:287 debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 10114 Comm: syz-executor.4 Not tainted 4.14.290-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x44 kernel/panic.c:547
 report_bug+0x208/0x250 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964
RIP: 0010:debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287
RSP: 0018:ffff8880ba507d00 EFLAGS: 00010082
RAX: 0000000000000051 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff878bc880 RDI: ffffed10174a0f96
RBP: ffffffff878b1a00 R08: 0000000000000051 R09: 0000000000000000
R10: 0000000000000000 R11: ffff88809d2f4600 R12: 0000000000000000
R13: 0000000000000000 R14: ffff888047c80100 R15: ffff8880a0b7daf0
 __debug_check_no_obj_freed lib/debugobjects.c:747 [inline]
 debug_check_no_obj_freed+0x3b7/0x680 lib/debugobjects.c:776
 kfree+0xb9/0x250 mm/slab.c:3814
 __tcindex_destroy+0x2e/0x70 net/sched/cls_tcindex.c:253
 __rcu_reclaim kernel/rcu/rcu.h:195 [inline]
 rcu_do_batch kernel/rcu/tree.c:2699 [inline]
 invoke_rcu_callbacks kernel/rcu/tree.c:2962 [inline]
 __rcu_process_callbacks kernel/rcu/tree.c:2929 [inline]
 rcu_process_callbacks+0x780/0x1180 kernel/rcu/tree.c:2946
 __do_softirq+0x24d/0x9ff kernel/softirq.c:288
 invoke_softirq kernel/softirq.c:368 [inline]
 irq_exit+0x193/0x240 kernel/softirq.c:409
 exiting_irq arch/x86/include/asm/apic.h:638 [inline]
 smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1106
 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793
 </IRQ>
RIP: 0010:unwind_next_frame+0x286/0x17d0 arch/x86/kernel/unwind_orc.c:349
RSP: 0018:ffff8880b5267928 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000000 RBX: 1ffff11016a4cf2c RCX: ffffffff8a739128
RDX: 0000000000000004 RSI: ffffffff8a7390f8 RDI: ffffffff8a1a1114
RBP: 0000000000000001 R08: ffffffff8a73912c R09: ffffffff8a73912e
R10: 0000000000021bf8 R11: 0000000000066071 R12: ffff8880b5267a1d
R13: ffff8880b5267a20 R14: ffff8880b5267a38 R15: ffff8880b52679e8
 __save_stack_trace+0x90/0x160 arch/x86/kernel/stacktrace.c:44
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551
 slab_post_alloc_hook mm/slab.h:442 [inline]
 slab_alloc mm/slab.c:3390 [inline]
 kmem_cache_alloc+0x111/0x3c0 mm/slab.c:3550
 __d_alloc+0x2a/0xa20 fs/dcache.c:1623
 d_alloc+0x46/0x240 fs/dcache.c:1710
 __lookup_hash fs/namei.c:1571 [inline]
 __lookup_hash+0x101/0x270 fs/namei.c:1563
 filename_create+0x156/0x3f0 fs/namei.c:3675
 user_path_create fs/namei.c:3732 [inline]
 SYSC_symlinkat fs/namei.c:4176 [inline]
 SyS_symlinkat+0xb3/0x240 fs/namei.c:4163
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f372cba9b17
RSP: 002b:00007fff18e97698 EFLAGS: 00000202 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f372cba9b17
RDX: 00007f372cc0420d RSI: 00000000ffffff9c RDI: 00007fff18e97760
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff18e97530
R10: 00007fff18e973e7 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007fff18e97760

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