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NFC: Dereference LLCP bind socket address after checking for it to be NULL

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Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz 2012-06-29 12:03:55 +02:00 committed by John W. Linville
parent a831b91320
commit c66433dc5d
1 changed files with 2 additions and 2 deletions
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4
net/nfc/llcp/sock.c
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@ -78,11 +78,11 @@ static int llcp_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
struct sockaddr_nfc_llcp llcp_addr; struct sockaddr_nfc_llcp llcp_addr;
int len, ret = 0; int len, ret = 0;
pr_debug("sk %p addr %p family %d\n", sk, addr, addr->sa_family);
if (!addr || addr->sa_family != AF_NFC) if (!addr || addr->sa_family != AF_NFC)
return -EINVAL; return -EINVAL;
pr_debug("sk %p addr %p family %d\n", sk, addr, addr->sa_family);
memset(&llcp_addr, 0, sizeof(llcp_addr)); memset(&llcp_addr, 0, sizeof(llcp_addr));
len = min_t(unsigned int, sizeof(llcp_addr), alen); len = min_t(unsigned int, sizeof(llcp_addr), alen);
memcpy(&llcp_addr, addr, len); memcpy(&llcp_addr, addr, len);