Signed-off-by: André Goddard Rosa <andre.goddard@xxxxxxxxx>
Acked-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
---
lib/vsprintf.c | 10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 002f462..403e835 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1445,13 +1445,15 @@ do { \
case FORMAT_TYPE_STR: {
const char *save_str = va_arg(args, char *);
size_t len;
+
if ((unsigned long)save_str > (unsigned long)-PAGE_SIZE
|| (unsigned long)save_str < PAGE_SIZE)
save_str = null_str;
- len = strlen(save_str);
- if (str + len + 1 < end)
- memcpy(str, save_str, len + 1);
- str += len + 1;
+ len = strlen(save_str) + 1;
+ if (str + len < end)
+ memcpy(str, save_str, len);
+ str += len;
+
break;
}
--
1.6.5.2.153.g6e31f.dirty
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