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| author | Georgi Valkov <gvalkov@gmail.com> | 2023-06-07 15:56:59 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-06-09 10:26:57 +0100 |
| commit | 2203718c2f59ffdd6c78d54e5add594aebb4461e (patch) | |
| tree | 8e909ff2119179b861f0ad8d6132d2f099b7ad8a /drivers/net/usb | |
| parent | fd5f4d7da29218485153fd8b4c08da7fc130c79f (diff) | |
| download | linux-stable-2203718c2f59ffdd6c78d54e5add594aebb4461e.tar.gz linux-stable-2203718c2f59ffdd6c78d54e5add594aebb4461e.tar.bz2 linux-stable-2203718c2f59ffdd6c78d54e5add594aebb4461e.zip | |
usbnet: ipheth: fix risk of NULL pointer deallocation
The cleanup precedure in ipheth_probe will attempt to free a
NULL pointer in dev->ctrl_buf if the memory allocation for
this buffer is not successful. While kfree ignores NULL pointers,
and the existing code is safe, it is a better design to rearrange
the goto labels and avoid this.
Signed-off-by: Georgi Valkov <gvalkov@gmail.com>
Signed-off-by: Foster Snowhill <forst@pen.gy>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb')
| -rw-r--r-- | drivers/net/usb/ipheth.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c index 6a769df0b421..8875a3d0e6d9 100644 --- a/drivers/net/usb/ipheth.c +++ b/drivers/net/usb/ipheth.c @@ -510,8 +510,8 @@ err_register_netdev: ipheth_free_urbs(dev); err_alloc_urbs: err_get_macaddr: -err_alloc_ctrl_buf: kfree(dev->ctrl_buf); +err_alloc_ctrl_buf: err_endpoints: free_netdev(netdev); return retval; |