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authorSumit Bose <sbose@redhat.com>2010-12-14 22:44:24 +0100
committerStephen Gallagher <sgallagh@redhat.com>2010-12-14 17:13:30 -0500
commit5d6b7b93c778e22133f889690c3863c305c1e03f (patch)
treeb028094d5cda12bf7b4972240a96c9808b014186 /src
parente404ac6b8c5b78a102e20320133706f5efa66b12 (diff)
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Fix possible memory leak in sss_nss_recv_rep()
https://fedorahosted.org/sssd/ticket/723
Diffstat (limited to 'src')
-rw-r--r--src/sss_client/common.c21
1 files changed, 13 insertions, 8 deletions
diff --git a/src/sss_client/common.c b/src/sss_client/common.c
index 0efdbdf3..905c0df4 100644
--- a/src/sss_client/common.c
+++ b/src/sss_client/common.c
@@ -170,11 +170,13 @@ static enum nss_status sss_nss_send_req(enum sss_cli_command cmd,
*/
static enum nss_status sss_nss_recv_rep(enum sss_cli_command cmd,
- uint8_t **buf, int *len,
+ uint8_t **_buf, int *_len,
int *errnop)
{
uint32_t header[4];
size_t datarecv;
+ uint8_t *buf;
+ int len;
header[0] = SSS_NSS_HEADER_SIZE; /* unitl we know the real lenght */
header[1] = 0;
@@ -182,8 +184,8 @@ static enum nss_status sss_nss_recv_rep(enum sss_cli_command cmd,
header[3] = 0;
datarecv = 0;
- *buf = NULL;
- *len = 0;
+ buf = NULL;
+ len = 0;
*errnop = 0;
while (datarecv < header[0]) {
@@ -237,7 +239,7 @@ static enum nss_status sss_nss_recv_rep(enum sss_cli_command cmd,
} else {
bufrecv = datarecv - SSS_NSS_HEADER_SIZE;
res = read(sss_cli_sd,
- (char *)(*buf) + bufrecv,
+ (char *) buf + bufrecv,
header[0] - datarecv);
}
error = errno;
@@ -262,7 +264,7 @@ static enum nss_status sss_nss_recv_rep(enum sss_cli_command cmd,
datarecv += res;
- if (datarecv == SSS_NSS_HEADER_SIZE && *len == 0) {
+ if (datarecv == SSS_NSS_HEADER_SIZE && len == 0) {
/* at this point recv buf is not yet
* allocated and the header has just
* been read, do checks and proceed */
@@ -283,9 +285,9 @@ static enum nss_status sss_nss_recv_rep(enum sss_cli_command cmd,
return NSS_STATUS_UNAVAIL;
}
if (header[0] > SSS_NSS_HEADER_SIZE) {
- *len = header[0] - SSS_NSS_HEADER_SIZE;
- *buf = malloc(*len);
- if (!*buf) {
+ len = header[0] - SSS_NSS_HEADER_SIZE;
+ buf = malloc(len);
+ if (!buf) {
sss_cli_close_socket();
*errnop = ENOMEM;
return NSS_STATUS_UNAVAIL;
@@ -294,6 +296,9 @@ static enum nss_status sss_nss_recv_rep(enum sss_cli_command cmd,
}
}
+ *_len = len;
+ *_buf = buf;
+
return NSS_STATUS_SUCCESS;
}