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authorDavid S. Miller <davem@davemloft.net>2019-05-02 22:14:21 -0400
committerDavid S. Miller <davem@davemloft.net>2019-05-02 22:14:21 -0400
commitff24e4980a68d83090a02fda081741a410fe8eef (patch)
tree4d874dfcaf2bb8c3abc2446af9447a983402c0ae /drivers/usb/core/message.c
parent26f146ed971c0e4a264ce525d7a66a71ef73690d (diff)
parentea9866793d1e925b4d320eaea409263b2a568f38 (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Three trivial overlapping conflicts. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/usb/core/message.c')
-rw-r--r--drivers/usb/core/message.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 82239f27c4cc..e844bb7b5676 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -820,9 +820,11 @@ int usb_string(struct usb_device *dev, int index, char *buf, size_t size)
if (dev->state == USB_STATE_SUSPENDED)
return -EHOSTUNREACH;
- if (size <= 0 || !buf || !index)
+ if (size <= 0 || !buf)
return -EINVAL;
buf[0] = 0;
+ if (index <= 0 || index >= 256)
+ return -EINVAL;
tbuf = kmalloc(256, GFP_NOIO);
if (!tbuf)
return -ENOMEM;