LU-1855 build: fix 'out-of-bounds access' errors

[fs/lustre-release.git] / lustre / ptlrpc / sec_lproc.c

diff --git a/lustre/ptlrpc/sec_lproc.c b/lustre/ptlrpc/sec_lproc.c
index 2add995..0506d27 100644 (file)
--- a/lustre/ptlrpc/sec_lproc.c
+++ b/lustre/ptlrpc/sec_lproc.c
@@ -63,21 +63,20 @@ EXPORT_SYMBOL(sptlrpc_proc_root);
 
 char *sec_flags2str(unsigned long flags, char *buf, int bufsize)
 {
-        buf[0] = '\0';
-
-        if (flags & PTLRPC_SEC_FL_REVERSE)
-                strncat(buf, "reverse,", bufsize);
-        if (flags & PTLRPC_SEC_FL_ROOTONLY)
-                strncat(buf, "rootonly,", bufsize);
-        if (flags & PTLRPC_SEC_FL_UDESC)
-                strncat(buf, "udesc,", bufsize);
-        if (flags & PTLRPC_SEC_FL_BULK)
-                strncat(buf, "bulk,", bufsize);
-        if (buf[0] == '\0')
-                strncat(buf, "-,", bufsize);
-
-        buf[strlen(buf) - 1] = '\0';
-        return buf;
+       buf[0] = '\0';
+
+       if (flags & PTLRPC_SEC_FL_REVERSE)
+               strlcat(buf, "reverse,", bufsize);
+       if (flags & PTLRPC_SEC_FL_ROOTONLY)
+               strlcat(buf, "rootonly,", bufsize);
+       if (flags & PTLRPC_SEC_FL_UDESC)
+               strlcat(buf, "udesc,", bufsize);
+       if (flags & PTLRPC_SEC_FL_BULK)
+               strlcat(buf, "bulk,", bufsize);
+       if (buf[0] == '\0')
+               strlcat(buf, "-,", bufsize);
+
+       return buf;
 }
 
 static int sptlrpc_info_lprocfs_seq_show(struct seq_file *seq, void *v)