------------[ cut here ]------------ refcount_t: decrement hit 0; leaking memory. WARNING: CPU: 1 PID: 9529 at lib/refcount.c:31 refcount_warn_saturate+0x1ed/0x210 lib/refcount.c:31 Modules linked in: CPU: 1 UID: 0 PID: 9529 Comm: syz.4.1039 Not tainted 6.14.0-syzkaller-03576-g1e1ba8d23dae #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:refcount_warn_saturate+0x1ed/0x210 lib/refcount.c:31 Code: 8b e8 07 82 b3 fc 90 0f 0b 90 90 e9 c3 fe ff ff e8 a8 d7 f3 fc c6 05 04 a3 a3 0b 01 90 48 c7 c7 40 1d f3 8b e8 e4 81 b3 fc 90 <0f> 0b 90 90 e9 a0 fe ff ff 48 89 ef e8 c2 72 57 fd e9 44 fe ff ff RSP: 0018:ffffc90003a8f8f8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817abe18 RDX: ffff888028320000 RSI: ffffffff817abe25 RDI: 0000000000000001 RBP: ffff888022fdc64c R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 1ffff92000751f24 R13: ffff888022fdc64c R14: 0000000000000000 R15: ffff888022fdc000 FS: 0000000000000000(0000) GS:ffff888124b54000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001580 CR3: 0000000061a96000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __refcount_dec include/linux/refcount.h:336 [inline] refcount_dec include/linux/refcount.h:351 [inline] ref_tracker_free+0x70c/0x830 lib/ref_tracker.c:236 netdev_tracker_free include/linux/netdevice.h:4302 [inline] netdev_put include/linux/netdevice.h:4319 [inline] netdev_put include/linux/netdevice.h:4315 [inline] ax25_release+0x33f/0xa10 net/ax25/af_ax25.c:1080 __sock_release+0xb0/0x270 net/socket.c:647 sock_close+0x1c/0x30 net/socket.c:1398 __fput+0x3ff/0xb70 fs/file_table.c:465 task_work_run+0x14d/0x240 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0xaea/0x2d60 kernel/exit.c:954 do_group_exit+0xd3/0x2a0 kernel/exit.c:1103 get_signal+0x24cf/0x26a0 kernel/signal.c:3035 arch_do_signal_or_restart+0x8f/0x7d0 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+0x150/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x260 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f837a78d169 Code: Unable to access opcode bytes at 0x7f837a78d13f. RSP: 002b:00007f83785d50e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f837a9a6168 RCX: 00007f837a78d169 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f837a9a6168 RBP: 00007f837a9a6160 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f837a9a616c R13: 0000000000000000 R14: 00007ffc138792e0 R15: 00007ffc138793c8