------------[ cut here ]------------
refcount_t: decrement hit 0; leaking memory.
WARNING: CPU: 0 PID: 0 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0 lib/refcount.c:31
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 lib/refcount.c:31
Code: 1d 6a ad 81 09 31 ff 89 de e8 ad 11 9d fd 84 db 75 e0 e8 c4 0d 9d fd 48 c7 c7 60 cb e4 89 c6 05 4a ad 81 09 01 e8 b8 c7 1c 05 <0f> 0b eb c4 e8 a8 0d 9d fd 0f b6 1d 39 ad 81 09 31 ff 89 de e8 78
RSP: 0018:ffffc90000007df0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffffffff8b6bc6c0 RSI: ffffffff815f39c8 RDI: fffff52000000fb0
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815ed79e R11: 0000000000000000 R12: 0000000000000001
R13: ffff8880886e05b0 R14: 0000000000000003 R15: ffff88807a7fb1e8
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6252443000 CR3: 000000007c9e9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__refcount_dec include/linux/refcount.h:344 [inline]
refcount_dec include/linux/refcount.h:359 [inline]
dev_put include/linux/netdevice.h:4166 [inline]
in_dev_finish_destroy+0x160/0x1b0 net/ipv4/devinet.c:246
in_dev_put include/linux/inetdevice.h:276 [inline]
in_dev_rcu_put+0x83/0xb0 net/ipv4/devinet.c:303
rcu_do_batch kernel/rcu/tree.c:2506 [inline]
rcu_core+0x7ab/0x1470 kernel/rcu/tree.c:2741
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:132 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:110 [inline]
RIP: 0010:acpi_idle_do_entry+0x1c6/0x250 drivers/acpi/processor_idle.c:553
Code: 89 de e8 1d 02 3a f8 84 db 75 ac e8 34 fe 39 f8 e8 df 41 40 f8 eb 0c e8 28 fe 39 f8 0f 00 2d 91 f9 b2 00 e8 1c fe 39 f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 97 00 3a f8 48 85 db
RSP: 0018:ffffffff8b607d60 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffffffff8b6bc6c0 RSI: ffffffff893dc854 RDI: 0000000000000000
RBP: ffff888012bcb864 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817e0a58 R11: 0000000000000000 R12: 0000000000000001
R13: ffff888012bcb800 R14: ffff888012bcb864 R15: ffff888140bfe004
acpi_idle_enter+0x361/0x500 drivers/acpi/processor_idle.c:688
cpuidle_enter_state+0x1b1/0xc80 drivers/cpuidle/cpuidle.c:237
cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:351
call_cpuidle kernel/sched/idle.c:158 [inline]
cpuidle_idle_call kernel/sched/idle.c:239 [inline]
do_idle+0x3e8/0x590 kernel/sched/idle.c:306
cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:403
start_kernel+0x47a/0x49b init/main.c:1135
secondary_startup_64_no_verify+0xb0/0xbb
----------------
Code disassembly (best guess):
0: 89 de mov %ebx,%esi
2: e8 1d 02 3a f8 callq 0xf83a0224
7: 84 db test %bl,%bl
9: 75 ac jne 0xffffffb7
b: e8 34 fe 39 f8 callq 0xf839fe44
10: e8 df 41 40 f8 callq 0xf84041f4
15: eb 0c jmp 0x23
17: e8 28 fe 39 f8 callq 0xf839fe44
1c: 0f 00 2d 91 f9 b2 00 verw 0xb2f991(%rip) # 0xb2f9b4
23: e8 1c fe 39 f8 callq 0xf839fe44
28: fb sti
29: f4 hlt
* 2a: 9c pushfq <-- trapping instruction
2b: 5b pop %rbx
2c: 81 e3 00 02 00 00 and $0x200,%ebx
32: fa cli
33: 31 ff xor %edi,%edi
35: 48 89 de mov %rbx,%rsi
38: e8 97 00 3a f8 callq 0xf83a00d4
3d: 48 85 db test %rbx,%rbx