diff options
| author | Colin Ian King <colin.king@canonical.com> | 2018-02-28 11:28:49 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-30 07:49:14 +0200 |
| commit | cc1cf4acb8ade6dc16f870751b07f356bfd5a017 (patch) | |
| tree | 36081aad2fd661ec2ab2be63ae5007fe49a9bdf0 | |
| parent | dbe213d8bc80f5713d85832a432debde08fa037b (diff) | |
staging: rtl8192u: return -ENOMEM on failed allocation of priv->oldaddr
[ Upstream commit e1a7418529e33bc4efc346324557251a16a3e79b ]
Currently the allocation of priv->oldaddr is not null checked which will
lead to subsequent errors when accessing priv->oldaddr. Fix this with
a null pointer check and a return of -ENOMEM on allocation failure.
Detected with Coccinelle:
drivers/staging/rtl8192u/r8192U_core.c:1708:2-15: alloc with no test,
possible model on line 1723
Fixes: 8fc8598e61f6 ("Staging: Added Realtek rtl8192u driver to staging")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/rtl8192u/r8192U_core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index e06864f64beb..0f6bc6b8e4c6 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -1749,6 +1749,8 @@ static short rtl8192_usb_initendpoints(struct net_device *dev) priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL); priv->oldaddr = kmalloc(16, GFP_KERNEL); + if (!priv->oldaddr) + return -ENOMEM; oldaddr = priv->oldaddr; align = ((long)oldaddr) & 3; if (align) { |