[dm-devel] [dm- devel][PATCH] vector: fix upper boundary check of vector size in vector_del_slot

Zhiqiang Liu liuzhiqiang26 at huawei.com
Mon Aug 3 02:39:29 UTC 2020


In vector_del_slot func, legal value of input slot is in range of
[0, VECTOR_SIZE(v)), it means slot value should be less then VECTOR_SIZE(v).


Signed-off-by: Zhiqiang Liu <liuzhiqiang26 at huawei.com>
---
 libmultipath/vector.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libmultipath/vector.c b/libmultipath/vector.c
index 501cf4c5..5b047e40 100644
--- a/libmultipath/vector.c
+++ b/libmultipath/vector.c
@@ -109,7 +109,7 @@ vector_del_slot(vector v, int slot)
 {
 	int i;

-	if (!v || !v->allocated || slot < 0 || slot > VECTOR_SIZE(v))
+	if (!v || !v->allocated || slot < 0 || slot >= VECTOR_SIZE(v))
 		return;

 	for (i = slot + 1; i < VECTOR_SIZE(v); i++)
-- 
2.24.0.windows.2





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