WARNING: CPU: 0 PID: 11404 at lib/refcount.c:31 refcount_warn_saturate+0x16d/0x1a0 lib/refcount.c:31
Modules linked in:
CPU: 0 PID: 11404 Comm: syz.8.1652 Not tainted 6.1.133-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:refcount_warn_saturate+0x16d/0x1a0 lib/refcount.c:31
Code: c7 c7 60 2f 5f 8b e8 72 d3 0e fd 0f 0b e9 6e ff ff ff e8 d6 bd 46 fd c6 05 a3 75 48 0a 01 48 c7 c7 c0 2f 5f 8b e8 53 d3 0e fd <0f> 0b e9 4f ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c b2 fe ff
RSP: 0018:ffffc900032a77a8 EFLAGS: 00010246
RAX: a01bc9abeba32700 RBX: 0000000000000004 RCX: 0000000000080000
RDX: ffffc9001d401000 RSI: 0000000000019645 RDI: 0000000000019646
RBP: 0000000000000004 R08: ffffffff8152c26e R09: fffff52000654e55
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880779b45b8
R13: 0000000000000000 R14: ffff8880779b45fc R15: dffffc0000000000
FS:  00007f426b3ce6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fa08b34131 CR3: 000000003774f000 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+0x6a0/0x7d0 lib/ref_tracker.c:118
 netdev_tracker_free include/linux/netdevice.h:4071 [inline]
 netdev_put include/linux/netdevice.h:4088 [inline]
 ax25_release+0x3ef/0x950 net/ax25/af_ax25.c:1080
 __sock_release net/socket.c:654 [inline]
 sock_close+0xcd/0x230 net/socket.c:1400
 __fput+0x3f6/0x8d0 fs/file_table.c:320
 task_work_run+0x246/0x300 kernel/task_work.c:203
 get_signal+0x15d0/0x17a0 kernel/signal.c:2648
 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f426a58d169
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:00007f426b3ce038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: fffffffffffffe00 RBX: 00007f426a7a5fa0 RCX: 00007f426a58d169
RDX: 0000000000000048 RSI: 0000200000000000 RDI: 0000000000000004
RBP: 00007f426a60e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f426a7a5fa0 R15: 00007ffd422bc988
 </TASK>