patch 9.2.0772: Vim9: Null dereference inside alloc_type()

Problem:  Vim9: Null dereference inside alloc_type(),
          Missing NULL check after ALLOC_ONE() (Ao Xijie)
Solution: Check that the returned value from ALLOC_ONE() is not NULL

related: #20668

Supported by AI.

Signed-off-by: Christian Brabandt <cb@256bit.org>

diff --git a/src/version.c b/src/version.c
index 7fa823e7dcc2a27a3b0c8b6c7dadc8913087db44..2c4e9cf24c94ab60369de45771da93a04181c533 100644 (file)
--- a/src/version.c
+++ b/src/version.c
@@ -759,6 +759,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    772,
 /**/
     771,
 /**/

diff --git a/src/vim9type.c b/src/vim9type.c
index 1bd94a60cb4b4103ac171bf7456556a0e4a4e9b3..ab34d2535c122912cdfabfe71c5e50f344243d93 100644 (file)
--- a/src/vim9type.c
+++ b/src/vim9type.c
@@ -147,6 +147,8 @@ alloc_type(type_T *type)
        return type;
 
     ret = ALLOC_ONE(type_T);
+    if (ret == NULL)
+       return NULL;
     *ret = *type;
 
     if (ret->tt_member != NULL)