------------[ cut here ]------------ refcount_t: decrement hit 0; leaking memory. WARNING: CPU: 1 PID: 11744 at lib/refcount.c:31 refcount_warn_saturate+0xfa/0x1d0 lib/refcount.c:31 Modules linked in: CPU: 1 PID: 11744 Comm: syz-executor.0 Not tainted 6.10.0-rc1-syzkaller-00205-ge19de2064fdf #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:refcount_warn_saturate+0xfa/0x1d0 lib/refcount.c:31 Code: b2 00 00 00 e8 57 c3 e6 fc 5b 5d c3 cc cc cc cc e8 4b c3 e6 fc c6 05 6a 6e e8 0a 01 90 48 c7 c7 a0 a0 1f 8c e8 c7 f1 a8 fc 90 <0f> 0b 90 90 eb d9 e8 2b c3 e6 fc c6 05 47 6e e8 0a 01 90 48 c7 c7 RSP: 0018:ffffc9000ff2f748 EFLAGS: 00010246 RAX: ca4fb0fc8ac17000 RBX: ffff88802bbfa664 RCX: ffff8880552a8000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000004 R08: ffffffff815847a2 R09: fffffbfff1c3998c R10: dffffc0000000000 R11: fffffbfff1c3998c R12: ffff88802bbfa620 R13: 0000000000000000 R14: ffff88802bbfa664 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f428d029018 CR3: 000000005b546000 CR4: 00000000003506f0 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+0x6af/0x7e0 lib/ref_tracker.c:236 netdev_tracker_free include/linux/netdevice.h:4058 [inline] netdev_put include/linux/netdevice.h:4075 [inline] ax25_release+0x368/0x950 net/ax25/af_ax25.c:1069 __sock_release net/socket.c:659 [inline] sock_close+0xbc/0x240 net/socket.c:1421 __fput+0x406/0x8b0 fs/file_table.c:422 task_work_run+0x24f/0x310 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa27/0x27e0 kernel/exit.c:874 do_group_exit+0x207/0x2c0 kernel/exit.c:1023 get_signal+0x16a1/0x1740 kernel/signal.c:2909 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd3d7e7cee9 Code: Unable to access opcode bytes at 0x7fd3d7e7cebf. RSP: 002b:00007fd3d8b9f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffed RBX: 00007fd3d7fb3fa0 RCX: 00007fd3d7e7cee9 RDX: 0000000020000680 RSI: 00000000000089f7 RDI: 000000000000000c RBP: 00007fd3d7ec947f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000004d R14: 00007fd3d7fb3fa0 R15: 00007ffed4b4d958