lib/bpf: Don't leak fp in bpf_find_mntpt()
If fopen() succeeded but len != PATH_MAX, the function leaks the open
FILE pointer. Fix this by checking len value before calling fopen().
Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
diff --git a/lib/bpf.c b/lib/bpf.c
index 4f52ad4..1dcb261 100644
--- a/lib/bpf.c
+++ b/lib/bpf.c
@@ -537,8 +537,11 @@
}
}
+ if (len != PATH_MAX)
+ return NULL;
+
fp = fopen("/proc/mounts", "r");
- if (fp == NULL || len != PATH_MAX)
+ if (fp == NULL)
return NULL;
while (fscanf(fp, "%*s %" textify(PATH_MAX) "s %99s %*s %*d %*d\n",
