X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=src%2Fcommon%2Findex%2Findex.c;h=c94ec701c869f2df3bf61e2845409d3c46697131;hb=bb346b1a1a6b58c835b0a246d5bf7e734c3d3904;hp=b5591d137c923a97617005f9a85145e09264cba4;hpb=8dbd7d838dc2276e5a25057c76c2e219e1d2661b;p=lttng-tools.git

diff --git a/src/common/index/index.c b/src/common/index/index.c
index b5591d137..c94ec701c 100644
--- a/src/common/index/index.c
+++ b/src/common/index/index.c
@@ -128,12 +128,16 @@ error:
 int lttng_index_file_write(const struct lttng_index_file *index_file,
 		const struct ctf_packet_index *element)
 {
+	int fd;
+	size_t len;
 	ssize_t ret;
-	int fd = index_file->fd;
-	size_t len = index_file->element_len;
 
+	assert(index_file);
 	assert(element);
 
+	fd = index_file->fd;
+	len = index_file->element_len;
+
 	if (fd < 0) {
 		goto error;
 	}
@@ -245,6 +249,10 @@ struct lttng_index_file *lttng_index_file_open(const char *path_name,
 		ERR("Invalid header version");
 		goto error_close;
 	}
+	if (element_len > sizeof(struct ctf_packet_index)) {
+		ERR("Index element length too long");
+		goto error_close;
+	}
 
 	index_file->fd = read_fd;
 	index_file->major = major;