[package] busybox: fix hexdump segmentation fault with an empty leading format unit

[openwrt.git] / package / busybox / patches / 700-hexdump_segfault_fix.patch

--- a/libbb/dump.c
+++ b/libbb/dump.c
@@ -301,7 +301,7 @@ static NOINLINE void rewrite(priv_dumper
                ) {
                        fu->reps += (dumper->blocksize - fs->bcnt) / fu->bcnt;
                }
-               if (fu->reps > 1) {
+               if (fu->reps > 1 && fu->nextpr) {
                        for (pr = fu->nextpr;; pr = pr->nextpr)
                                if (!pr->nextpr)
                                        break;