1 files changed, 6 insertions, 2 deletions

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 4da1e7aaf9d5..3a1e0843f9a2 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1235,8 +1235,12 @@ char *escaped_string(char *buf, char *end, u8 *addr, struct printf_spec spec,
 
         len = spec.field_width < 0 ? 1 : spec.field_width;
 
-        /* Ignore the error. We print as many characters as we can */
-        string_escape_mem(addr, len, &buf, end - buf, flags, NULL);
+        /*
+         * string_escape_mem() writes as many characters as it can to
+         * the given buffer, and returns the total size of the output
+         * had the buffer been big enough.
+         */
+        buf += string_escape_mem(addr, len, buf, buf < end ? end - buf : 0, flags, NULL);
 
         return buf;
 }