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Staging: vt6655-6: check keysize before memcpy()

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We need to check the we don't copy too much memory.  This comes from a
copy_from_user() in the ioctl.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dan Carpenter
2012-03-29 09:43:54 +03:00
committed by Greg Kroah-Hartman
parent 401c90e56c
commit 4ca5218e39
2 changed files with 6 additions and 0 deletions
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3
drivers/staging/vt6655/key.c
View File

@@ -655,6 +655,9 @@ bool KeybSetDefaultKey (
return (false);
}
if (uKeyLength > MAX_KEY_LEN)
return false;
pTable->KeyTable[MAX_KEY_TABLE-1].bInUse = true;
for(ii=0;ii<ETH_ALEN;ii++)
pTable->KeyTable[MAX_KEY_TABLE-1].abyBSSID[ii] = 0xFF;

3
drivers/staging/vt6656/key.c
View File

@@ -684,6 +684,9 @@ BOOL KeybSetDefaultKey(
return (FALSE);
}
if (uKeyLength > MAX_KEY_LEN)
return false;
pTable->KeyTable[MAX_KEY_TABLE-1].bInUse = TRUE;
for (ii = 0; ii < ETH_ALEN; ii++)
pTable->KeyTable[MAX_KEY_TABLE-1].abyBSSID[ii] = 0xFF;