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| author |   Zhengchao Shao <shaozhengchao@huawei.com> | 2022-11-03 17:09:05 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-11-07 09:32:28 +0000 |
| commit | 85cbaf032d3cd9f595152625eda5d4ecb1d6d78d (patch) | |
| tree | 327e59580f50536870b6135cc20639e80e2cf792 /drivers/net/wwan/iosm/iosm_ipc_wwan.c | |
| parent | net: lapbether: fix issue of dev reference count leakage in lapbeth_device_event() (diff) | |
| download | linux-dev-85cbaf032d3cd9f595152625eda5d4ecb1d6d78d.tar.xz linux-dev-85cbaf032d3cd9f595152625eda5d4ecb1d6d78d.zip | |
hamradio: fix issue of dev reference count leakage in bpq_device_event()
When following tests are performed, it will cause dev reference counting
leakage.
a)ip link add bond2 type bond mode balance-rr
b)ip link set bond2 up
c)ifenslave -f bond2 rose1
d)ip link del bond2
When new bond device is created, the default type of the bond device is
ether. And the bond device is up, bpq_device_event() receives the message
and creates a new bpq device. In this case, the reference count value of
dev is hold once. But after "ifenslave -f bond2 rose1" command is
executed, the type of the bond device is changed to rose. When the bond
device is unregistered, bpq_device_event() will not put the dev reference
count.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions