------------[ cut here ]------------
refcount_t: decrement hit 0; leaking memory.
WARNING: CPU: 1 PID: 17718 at lib/refcount.c:31 refcount_warn_saturate+0xfa/0x1d0 lib/refcount.c:31
Modules linked in:
CPU: 1 UID: 0 PID: 17718 Comm: syz.8.3581 Not tainted 6.13.0-rc2-syzkaller-00130-g150b567e0d57 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:refcount_warn_saturate+0xfa/0x1d0 lib/refcount.c:31
Code: b2 00 00 00 e8 87 43 dd fc 5b 5d e9 4b 26 2e 07 e8 7b 43 dd fc c6 05 9d 83 41 0b 01 90 48 c7 c7 40 53 5f 8c e8 d7 ec 9d fc 90 <0f> 0b 90 90 eb d9 e8 5b 43 dd fc c6 05 7a 83 41 0b 01 90 48 c7 c7
RSP: 0018:ffffc90003f0f8e8 EFLAGS: 00010246
RAX: abf4ae17f8c0c400 RBX: ffff88807edb464c RCX: 0000000000080000
RDX: ffffc9001730d000 RSI: 000000000000541e RDI: 000000000000541f
RBP: 0000000000000004 R08: ffffffff81600a42 R09: fffffbfff1cfa210
R10: dffffc0000000000 R11: fffffbfff1cfa210 R12: ffff88807edb4608
R13: 0000000000000000 R14: ffff88807edb464c R15: dffffc0000000000
FS:  00007efe6e7b46c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fc4438b534 CR3: 0000000063e74000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __refcount_dec include/linux/refcount.h:336 [inline]
 refcount_dec include/linux/refcount.h:351 [inline]
 ref_tracker_free+0x6af/0x7e0 lib/ref_tracker.c:236
 netdev_tracker_free include/linux/netdevice.h:4156 [inline]
 netdev_put include/linux/netdevice.h:4173 [inline]
 ax25_release+0x368/0x950 net/ax25/af_ax25.c:1069
 __sock_release net/socket.c:640 [inline]
 sock_close+0xbe/0x240 net/socket.c:1408
 __fput+0x23e/0xa50 fs/file_table.c:450
 task_work_run+0x251/0x310 kernel/task_work.c:239
 get_signal+0x15f7/0x1750 kernel/signal.c:2790
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efe70985d19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007efe6e7b4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: 0000000000000000 RBX: 00007efe70b76160 RCX: 00007efe70985d19
RDX: 0000000000000019 RSI: 0000000000000101 RDI: 000000000000000c
RBP: 00007efe70a01a20 R08: 0000000000000010 R09: 0000000000000000
R10: 0000000020000280 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007efe70b76160 R15: 00007ffcc8bd77c8
 </TASK>