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authorNoah Misch2019-07-01 00:34:17 +0000
committerNoah Misch2019-07-01 00:34:17 +0000
commit459c3cdb4ad8323bfe6bcae0186a3831e0c89c94 (patch)
tree56e6c559d025f99e2d7f0c0237f1a9521807d22f /src/backend/utils/adt/arrayfuncs.c
parentda53be23d1c5e529675e958eaee54cfed4e4dbac (diff)
Don't read fields of a misaligned ExpandedObjectHeader or AnyArrayType.
UBSan complains about this. Instead, cast to a suitable type requiring only 4-byte alignment. DatumGetAnyArrayP() already assumes one can cast between AnyArrayType and ArrayType, so this doesn't introduce a new assumption. Back-patch to 9.5, where AnyArrayType was introduced. Reviewed by Tom Lane. Discussion: https://postgr.es/m/[email protected]
Diffstat (limited to 'src/backend/utils/adt/arrayfuncs.c')
-rw-r--r--src/backend/utils/adt/arrayfuncs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/utils/adt/arrayfuncs.c b/src/backend/utils/adt/arrayfuncs.c
index 3ae15562465..f9f621e7591 100644
--- a/src/backend/utils/adt/arrayfuncs.c
+++ b/src/backend/utils/adt/arrayfuncs.c
@@ -4159,7 +4159,7 @@ array_contain_compare(AnyArrayType *array1, AnyArrayType *array2, Oid collation,
nelems2 = array2->xpn.nelems;
}
else
- deconstruct_array(&(array2->flt),
+ deconstruct_array((ArrayType *) array2,
element_type, typlen, typbyval, typalign,
&values2, &nulls2, &nelems2);