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authorIgor Mammedov <niallain@gmail.com>2008-05-20 05:02:01 -0400
committerSteve French <sfrench@us.ibm.com>2008-05-20 23:49:00 -0400
commit5651ced3ab196b5e7dc485c5777f210aa41e2d8d (patch)
tree9bc52a46726a6dcf7c4a7943ae092c7d56130e9a /fs/cifs/dns_resolve.c
parentb9a3260f25ab5d2ba5c8b9508e7952848b9d704b (diff)
Fix possible access to undefined memory region.
Signed-off-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/dns_resolve.c')
-rw-r--r--fs/cifs/dns_resolve.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/cifs/dns_resolve.c b/fs/cifs/dns_resolve.c
index 939e256f8497..f730ef35499e 100644
--- a/fs/cifs/dns_resolve.c
+++ b/fs/cifs/dns_resolve.c
@@ -134,10 +134,6 @@ dns_resolve_server_name_to_ip(const char *unc, char **ip_addr)
134 rkey = request_key(&key_type_dns_resolver, name, ""); 134 rkey = request_key(&key_type_dns_resolver, name, "");
135 if (!IS_ERR(rkey)) { 135 if (!IS_ERR(rkey)) {
136 data = rkey->payload.data; 136 data = rkey->payload.data;
137 cFYI(1, ("%s: resolved: %s to %s", __func__,
138 rkey->description,
139 *ip_addr
140 ));
141 } else { 137 } else {
142 cERROR(1, ("%s: unable to resolve: %s", __func__, name)); 138 cERROR(1, ("%s: unable to resolve: %s", __func__, name));
143 goto out; 139 goto out;
@@ -150,6 +146,11 @@ skip_upcall:
150 if (*ip_addr) { 146 if (*ip_addr) {
151 memcpy(*ip_addr, data, len); 147 memcpy(*ip_addr, data, len);
152 (*ip_addr)[len] = '\0'; 148 (*ip_addr)[len] = '\0';
149 if (!IS_ERR(rkey))
150 cFYI(1, ("%s: resolved: %s to %s", __func__,
151 name,
152 *ip_addr
153 ));
153 rc = 0; 154 rc = 0;
154 } else { 155 } else {
155 rc = -ENOMEM; 156 rc = -ENOMEM;