utf8: make sure to honor the array length properly
Right now the input side can give partial utf8 input, and that showed
that we didn't properly handle that case.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/utf8.c b/utf8.c
index 6276b13..3bffd1e 100644
--- a/utf8.c
+++ b/utf8.c
@@ -41,13 +41,13 @@
/* Invalid? Do it as a single byte Latin1 */
if (bytes > 6)
return 1;
+ if (bytes > len)
+ return 1;
value = c & (mask-1);
/* Ok, do the bytes */
for (i = 1; i < bytes; i++) {
- if (i > len)
- return 1;
c = line[i];
if ((c & 0xc0) != 0x80)
return 1;
