ax25_connect(): syz.1.1129 uses autobind, please contact jreuter@yaina.de
------------[ cut here ]------------
refcount_t: decrement hit 0; leaking memory.
WARNING: CPU: 0 PID: 9247 at lib/refcount.c:31 refcount_warn_saturate+0xfa/0x1d0 lib/refcount.c:31
Modules linked in:
CPU: 0 UID: 0 PID: 9247 Comm: syz.1.1129 Not tainted 6.13.0-rc6-syzkaller-00165-gcbc16bceea78 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:refcount_warn_saturate+0xfa/0x1d0 lib/refcount.c:31
Code: b2 00 00 00 e8 c7 1d dd fc 5b 5d c3 cc cc cc cc e8 bb 1d dd fc c6 05 ff 54 41 0b 01 90 48 c7 c7 60 6c 5f 8c e8 77 c1 9d fc 90 <0f> 0b 90 90 eb d9 e8 9b 1d dd fc c6 05 dc 54 41 0b 01 90 48 c7 c7
RSP: 0018:ffffc90003107568 EFLAGS: 00010246
RAX: d5c852dc08431700 RBX: ffff888079e1664c RCX: ffff888029f81e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000004 R08: ffffffff81602a82 R09: fffffbfff1cfa210
R10: dffffc0000000000 R11: fffffbfff1cfa210 R12: ffff888079e16608
R13: 0000000000000000 R14: ffff888079e1664c R15: dffffc0000000000
FS: 00007fbc324316c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020002a40 CR3: 0000000033134000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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_kill_by_device net/ax25/af_ax25.c:105 [inline]
ax25_device_event+0x2d1/0x580 net/ax25/af_ax25.c:146
notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
call_netdevice_notifiers_extack net/core/dev.c:2064 [inline]
call_netdevice_notifiers net/core/dev.c:2078 [inline]
dev_close_many+0x33c/0x4c0 net/core/dev.c:1619
dev_close+0x1c0/0x2c0 net/core/dev.c:1641
bpq_device_event+0x372/0x8b0 drivers/net/hamradio/bpqether.c:547
notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
__dev_notify_flags+0x207/0x400
dev_change_flags+0xf0/0x1a0 net/core/dev.c:9045
dev_ifsioc+0x7c8/0xe70 net/core/dev_ioctl.c:526
dev_ioctl+0x719/0x1340 net/core/dev_ioctl.c:783
sock_do_ioctl+0x240/0x460 net/socket.c:1223
sock_ioctl+0x626/0x8e0 net/socket.c:1328
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbc31585d29
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:00007fbc32431038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fbc31775fa0 RCX: 00007fbc31585d29
RDX: 0000000020000700 RSI: 0000000000008914 RDI: 0000000000000004
RBP: 00007fbc31601b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fbc31775fa0 R15: 00007ffc3fa5bbc8
</TASK>