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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29156 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 11 insertions, 0 deletions

diff --git a/package/busybox/patches/700-hexdump_segfault_fix.patch b/package/busybox/patches/700-hexdump_segfault_fix.patch
new file mode 100644
index 000000000..ab09fb3e4
--- /dev/null
+++ b/package/busybox/patches/700-hexdump_segfault_fix.patch
@@ -0,0 +1,11 @@
+--- 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;