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-rw-r--r--tools/perf/util/probe-file.c36
1 files changed, 29 insertions, 7 deletions
diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index 9aed9c332da6..9c3b9ed5b3c3 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -133,7 +133,7 @@ int probe_file__open_both(int *kfd, int *ufd, int flag)
/* Get raw string list of current kprobe_events or uprobe_events */
struct strlist *probe_file__get_rawlist(int fd)
{
- int ret, idx;
+ int ret, idx, fddup;
FILE *fp;
char buf[MAX_CMDLEN];
char *p;
@@ -143,8 +143,17 @@ struct strlist *probe_file__get_rawlist(int fd)
return NULL;
sl = strlist__new(NULL, NULL);
+ if (sl == NULL)
+ return NULL;
+
+ fddup = dup(fd);
+ if (fddup < 0)
+ goto out_free_sl;
+
+ fp = fdopen(fddup, "r");
+ if (!fp)
+ goto out_close_fddup;
- fp = fdopen(dup(fd), "r");
while (!feof(fp)) {
p = fgets(buf, MAX_CMDLEN, fp);
if (!p)
@@ -156,13 +165,21 @@ struct strlist *probe_file__get_rawlist(int fd)
ret = strlist__add(sl, buf);
if (ret < 0) {
pr_debug("strlist__add failed (%d)\n", ret);
- strlist__delete(sl);
- return NULL;
+ goto out_close_fp;
}
}
fclose(fp);
return sl;
+
+out_close_fp:
+ fclose(fp);
+ goto out_free_sl;
+out_close_fddup:
+ close(fddup);
+out_free_sl:
+ strlist__delete(sl);
+ return NULL;
}
static struct strlist *__probe_file__get_namelist(int fd, bool include_group)
@@ -447,12 +464,17 @@ static int probe_cache__load(struct probe_cache *pcache)
{
struct probe_cache_entry *entry = NULL;
char buf[MAX_CMDLEN], *p;
- int ret = 0;
+ int ret = 0, fddup;
FILE *fp;
- fp = fdopen(dup(pcache->fd), "r");
- if (!fp)
+ fddup = dup(pcache->fd);
+ if (fddup < 0)
+ return -errno;
+ fp = fdopen(fddup, "r");
+ if (!fp) {
+ close(fddup);
return -EINVAL;
+ }
while (!feof(fp)) {
if (!fgets(buf, MAX_CMDLEN, fp))