1 files changed, 4 insertions, 2 deletions

diff --git a/miscutils/bc.c b/miscutils/bc.c
index 016300ac1..e492f0f50 100644
--- a/miscutils/bc.c
+++ b/miscutils/bc.c
@@ -5456,11 +5456,13 @@ static void xc_program_printString(const char *str)
                         char *n;
 
                         c = *str++;
-                        n = strchr(esc, c); // note: c can be NUL
-                        if (!n) {
+                        n = strchr(esc, c); // note: if c is NUL, n = \0 at end of esc
+                        if (!n || !c) {
                                 // Just print the backslash and following character
                                 bb_putchar('\\');
                                 ++G.prog.nchars;
+                                // But if we're at the end of the string, stop
+                                if (!c) break;
                         } else {
                                 if (n - esc == 0) // "\n" ?
                                         G.prog.nchars = SIZE_MAX;