------------[ cut here ]------------
refcount_t: decrement hit 0; leaking memory.
WARNING: CPU: 0 PID: 5082 at lib/refcount.c:31 refcount_warn_saturate+0xe3/0x1a0 lib/refcount.c:31
Modules linked in:
CPU: 0 PID: 5082 Comm: syz.2.143 Not tainted 6.1.135-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:refcount_warn_saturate+0xe3/0x1a0 lib/refcount.c:31
Code: e2 09 01 0f 85 98 00 00 00 e8 49 46 79 fd 5b 41 5e c3 e8 40 46 79 fd c6 05 1c a3 e2 09 01 48 c7 c7 e0 cd be 8a e8 0d 57 45 fd <0f> 0b eb e0 e8 24 46 79 fd c6 05 fe a2 e2 09 01 48 c7 c7 20 cd be
RSP: 0018:ffffc90003727708 EFLAGS: 00010246
RAX: fcbb5b8c86accc00 RBX: 0000000000000004 RCX: ffff88801a749dc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc90003727850 R08: dffffc0000000000 R09: fffff520006e4e71
R10: fffff520006e4e71 R11: 1ffff920006e4e70 R12: ffff888073a2a5b8
R13: dffffc0000000000 R14: 0000000000000004 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5115ac7f98 CR3: 000000002519c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __refcount_dec include/linux/refcount.h:344 [inline]
 refcount_dec include/linux/refcount.h:359 [inline]
 ref_tracker_free+0x694/0x7c0 lib/ref_tracker.c:118
 netdev_tracker_free include/linux/netdevice.h:4071 [inline]
 netdev_put include/linux/netdevice.h:4088 [inline]
 ax25_release+0x3c8/0x940 net/ax25/af_ax25.c:1080
 __sock_release net/socket.c:654 [inline]
 sock_close+0xd5/0x240 net/socket.c:1400
 __fput+0x22c/0x920 fs/file_table.c:320
 task_work_run+0x1ca/0x250 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0x936/0x2400 kernel/exit.c:871
 do_group_exit+0x217/0x2d0 kernel/exit.c:1021
 get_signal+0x1272/0x1350 kernel/signal.c:2871
 arch_do_signal_or_restart+0xb0/0x1230 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:316
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0033:0x7fd345c67d29
Code: Unable to access opcode bytes at 0x7fd345c67cff.
RSP: 002b:00007fff2a4a0fd0 EFLAGS: 00000206
RAX: 0000000000000015 RBX: 00007fd3454ffa38 RCX: ffffffff84078533
RDX: 0000000000000013 RSI: ffffffff84078533 RDI: 00007fd3454ffa38
RBP: 00007fd3454ff8e8 R08: 00007fd3454ff988 R09: 00007fd345fa2000
R10: 00007fd3451ff008 R11: 000000000000000a R12: 00007fd3454ff8e0
R13: 0000000000000014 R14: 00007fff2a4a1218 R15: 00007fd3451ff008
 </TASK>