------------[ cut here ]------------
refcount_t: underflow; use-after-free.
WARNING: CPU: 0 PID: 4085 at lib/refcount.c:28 refcount_warn_saturate+0xaa/0xf0 lib/refcount.c:28
Modules linked in:
CPU: 0 PID: 4085 Comm: syz-executor.4 Not tainted 6.2.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:refcount_warn_saturate+0xaa/0xf0 lib/refcount.c:28
Code: 05 06 de 3e 02 01 e8 07 e7 f7 00 0f 0b c3 80 3d f6 dd 3e 02 00 75 95 48 c7 c7 48 c0 68 83 c6 05 e6 dd 3e 02 01 e8 e8 e6 f7 00 <0f> 0b c3 80 3d d5 dd 3e 02 00 0f 85 72 ff ff ff 48 c7 c7 a0 c0 68
RSP: 0018:ffffc90000003eb8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88811420bc00 RCX: 0000000000000000
RDX: 0000000000000101 RSI: ffffc90000003d68 RDI: 00000000ffffffff
RBP: ffff888175120800 R08: 0000000000000000 R09: ffffffff83ab1b40
R10: ffffc90000003d60 R11: ffffffff83b91b88 R12: ffff888109af5040
R13: 0000000000000000 R14: ffffffff81267f73 R15: 0000000000000000
FS:  00007fc9e089f6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200000c0 CR3: 0000000148d08000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __refcount_sub_and_test include/linux/refcount.h:283 [inline]
 __refcount_dec_and_test include/linux/refcount.h:315 [inline]
 refcount_dec_and_test include/linux/refcount.h:333 [inline]
 xp_put_pool+0x38/0xc0 net/xdp/xsk_buff_pool.c:279
 xsk_destruct+0x1d/0x40 net/xdp/xsk.c:1391
 __sk_destruct+0x22/0x270 net/core/sock.c:2135
 rcu_do_batch kernel/rcu/tree.c:2246 [inline]
 rcu_core+0x31d/0x900 kernel/rcu/tree.c:2506
 __do_softirq+0x122/0x3a4 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0xa2/0x100 kernel/softirq.c:650
 sysvec_apic_timer_interrupt+0xa2/0xd0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_release+0x17e/0x300 kernel/locking/lockdep.c:5692
Code: 0f c1 05 5d f3 dd 7e 83 f8 01 0f 85 29 01 00 00 9c 58 f6 c4 02 0f 85 14 01 00 00 41 f7 c5 00 02 00 00 74 01 fb 48 8b 44 24 10 <65> 48 2b 04 25 28 00 00 00 0f 85 67 01 00 00 48 83 c4 18 5d 41 5c
RSP: 0018:ffffc90000f17d58 EFLAGS: 00000206
RAX: c02fa5f8e5470000 RBX: ffff888113d55000 RCX: ffffc90000f17d64
RDX: 0000000000000001 RSI: ffffffff8353c925 RDI: ffffffff83573b59
RBP: ffffffff83b947a0 R08: 0000000000000000 R09: 0000000000000001
R10: ffff888109af59c8 R11: 0000000000000000 R12: ffffffff81452711
R13: 0000000000000246 R14: ffff888109af5040 R15: 0000000000000002
 rcu_lock_release include/linux/rcupdate.h:330 [inline]
 rcu_read_unlock include/linux/rcupdate.h:797 [inline]
 percpu_ref_tryget_many include/linux/percpu-refcount.h:250 [inline]
 percpu_ref_tryget include/linux/percpu-refcount.h:266 [inline]
 obj_cgroup_tryget include/linux/memcontrol.h:778 [inline]
 __get_obj_cgroup_from_memcg+0x6e/0xe0 mm/memcontrol.c:3004
 get_obj_cgroup_from_current+0xb2/0x130 mm/memcontrol.c:3024
 memcg_slab_pre_alloc_hook mm/slab.h:495 [inline]
 slab_pre_alloc_hook mm/slab.h:725 [inline]
 slab_alloc_node mm/slub.c:3434 [inline]
 slab_alloc mm/slub.c:3460 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3467 [inline]
 kmem_cache_alloc_lru+0x8e/0x570 mm/slub.c:3483
 __d_alloc+0x24/0x220 fs/dcache.c:1769
 d_alloc_pseudo+0x9/0x20 fs/dcache.c:1899
 alloc_file_pseudo+0x68/0x110 fs/file_table.c:265
 sock_alloc_file+0x38/0xa0 net/socket.c:464
 __sys_socketpair+0x14b/0x260 net/socket.c:1750
 __do_sys_socketpair net/socket.c:1779 [inline]
 __se_sys_socketpair net/socket.c:1776 [inline]
 __x64_sys_socketpair+0x16/0x20 net/socket.c:1776
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc9dfa7cb29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc9e089f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9dfb9bf80 RCX: 00007fc9dfa7cb29
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000001
RBP: 00007fc9dfac847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000240 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc9dfb9bf80 R15: 00007ffeac2db8d8
 </TASK>
----------------
Code disassembly (best guess):
   0:	0f c1 05 5d f3 dd 7e 	xadd   %eax,0x7eddf35d(%rip)        # 0x7eddf364
   7:	83 f8 01             	cmp    $0x1,%eax
   a:	0f 85 29 01 00 00    	jne    0x139
  10:	9c                   	pushf
  11:	58                   	pop    %rax
  12:	f6 c4 02             	test   $0x2,%ah
  15:	0f 85 14 01 00 00    	jne    0x12f
  1b:	41 f7 c5 00 02 00 00 	test   $0x200,%r13d
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	48 8b 44 24 10       	mov    0x10(%rsp),%rax
* 2a:	65 48 2b 04 25 28 00 	sub    %gs:0x28,%rax <-- trapping instruction
  31:	00 00
  33:	0f 85 67 01 00 00    	jne    0x1a0
  39:	48 83 c4 18          	add    $0x18,%rsp
  3d:	5d                   	pop    %rbp
  3e:	41 5c                	pop    %r12