netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue ODEBUG: free active (active state 0) object type: rcu_head hint: (null) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7988 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: 7988 Comm: syz-executor.3 Not tainted 4.14.295-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __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: ffffffff878bc9e0 RDI: ffffed10174a0f96 RBP: ffffffff878b1b00 R08: 0000000000000051 R09: 0000000000000000 R10: 0000000000000000 R11: ffff8880a2e8a480 R12: 0000000000000000 R13: 0000000000000000 R14: ffff88804a7f9400 R15: ffff8880a070dc40 __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 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline] RIP: 0010:lock_acquire+0x1ec/0x3f0 kernel/locking/lockdep.c:4001 RSP: 0018:ffff888098257a48 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 RAX: 1ffffffff11e1359 RBX: ffff8880a2e8a480 RCX: 00000000000076fa RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000286 RBP: ffff88809a17c858 R08: ffffffff8b9dd2d0 R09: 000000000004040f R10: ffff8880a2e8ada8 R11: ffff8880a2e8a480 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 _raw_spin_lock_nested+0x30/0x40 kernel/locking/spinlock.c:362 copy_pte_range mm/memory.c:1108 [inline] copy_pmd_range mm/memory.c:1179 [inline] copy_pud_range mm/memory.c:1213 [inline] copy_p4d_range mm/memory.c:1235 [inline] copy_page_range+0xb3b/0x2630 mm/memory.c:1297 dup_mmap kernel/fork.c:709 [inline] dup_mm kernel/fork.c:1200 [inline] copy_mm kernel/fork.c:1255 [inline] copy_process.part.0+0x4df8/0x71c0 kernel/fork.c:1791 copy_process kernel/fork.c:1606 [inline] _do_fork+0x184/0xc80 kernel/fork.c:2092 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f27d47a42ab RSP: 002b:00007ffd564b1040 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f27d47a42ab RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 00005555564d8400 R10: 00005555564d86d0 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffd564b1120 ======================================================