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-rw-r--r--erts/emulator/beam/bif.c15
-rw-r--r--erts/emulator/test/tuple_SUITE.erl102
2 files changed, 74 insertions, 43 deletions
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index 1cdce49eef..6d94632971 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -2443,7 +2443,7 @@ BIF_RETTYPE make_tuple_2(BIF_ALIST_2)
Eterm* hp;
Eterm res;
- if (is_not_small(BIF_ARG_1) || (n = signed_val(BIF_ARG_1)) < 0) {
+ if (is_not_small(BIF_ARG_1) || (n = signed_val(BIF_ARG_1)) < 0 || n > ERTS_MAX_TUPLE_SIZE) {
BIF_ERROR(BIF_P, BADARG);
}
hp = HAlloc(BIF_P, n+1);
@@ -2464,7 +2464,7 @@ BIF_RETTYPE make_tuple_3(BIF_ALIST_3)
Eterm list = BIF_ARG_3;
Eterm* tup;
- if (is_not_small(BIF_ARG_1) || (n = signed_val(BIF_ARG_1)) < 0) {
+ if (is_not_small(BIF_ARG_1) || (n = signed_val(BIF_ARG_1)) < 0 || n > ERTS_MAX_TUPLE_SIZE) {
error:
BIF_ERROR(BIF_P, BADARG);
}
@@ -2516,11 +2516,16 @@ BIF_RETTYPE append_element_2(BIF_ALIST_2)
Eterm res;
if (is_not_tuple(BIF_ARG_1)) {
+ error:
BIF_ERROR(BIF_P, BADARG);
}
- ptr = tuple_val(BIF_ARG_1);
+ ptr = tuple_val(BIF_ARG_1);
arity = arityval(*ptr);
- hp = HAlloc(BIF_P, arity + 2);
+
+ if (arity + 1 > ERTS_MAX_TUPLE_SIZE)
+ goto error;
+
+ hp = HAlloc(BIF_P, arity + 2);
res = make_tuple(hp);
*hp = make_arityval(arity+1);
while (arity--) {
@@ -3104,7 +3109,7 @@ BIF_RETTYPE list_to_tuple_1(BIF_ALIST_1)
Eterm* hp;
int len;
- if ((len = list_length(list)) < 0) {
+ if ((len = list_length(list)) < 0 || len > ERTS_MAX_TUPLE_SIZE) {
BIF_ERROR(BIF_P, BADARG);
}
diff --git a/erts/emulator/test/tuple_SUITE.erl b/erts/emulator/test/tuple_SUITE.erl
index bfc3910742..fd75be5797 100644
--- a/erts/emulator/test/tuple_SUITE.erl
+++ b/erts/emulator/test/tuple_SUITE.erl
@@ -159,21 +159,27 @@ set_all_elements(Tuple, Pos) when Pos > size(Tuple) ->
%% Tests list_to_tuple/1.
t_list_to_tuple(Config) when is_list(Config) ->
- ?line {} = list_to_tuple([]),
- ?line {a} = list_to_tuple([a]),
- ?line {a, b} = list_to_tuple([a, b]),
- ?line {a, b, c} = list_to_tuple([a, b, c]),
- ?line {a, b, c, d} = list_to_tuple([a, b, c, d]),
- ?line {a, b, c, d, e} = list_to_tuple([a, b, c, d, e]),
-
- ?line Size = 4096,
- ?line Tuple = list_to_tuple(lists:seq(1, Size)),
- ?line Size = size(Tuple),
-
- ?line {'EXIT', {badarg, _}} = (catch list_to_tuple(id({a,b}))),
- ?line {'EXIT', {badarg, _}} = (catch list_to_tuple(id([a|b]))),
- ?line {'EXIT', {badarg, _}} = (catch list_to_tuple(id([a|b]))),
-
+ {} = list_to_tuple([]),
+ {a} = list_to_tuple([a]),
+ {a, b} = list_to_tuple([a, b]),
+ {a, b, c} = list_to_tuple([a, b, c]),
+ {a, b, c, d} = list_to_tuple([a, b, c, d]),
+ {a, b, c, d, e} = list_to_tuple([a, b, c, d, e]),
+
+ Size = 4096,
+ Tuple = list_to_tuple(lists:seq(1, Size)),
+ Size = size(Tuple),
+
+ {'EXIT', {badarg, _}} = (catch list_to_tuple(id({a,b}))),
+ {'EXIT', {badarg, _}} = (catch list_to_tuple(id([a|b]))),
+ {'EXIT', {badarg, _}} = (catch list_to_tuple(id([a|b]))),
+
+ % test upper boundry, 16777215 elements
+ MaxSize = 1 bsl 24 - 1,
+ MaxTuple = list_to_tuple(lists:seq(1, MaxSize)),
+ MaxSize = size(MaxTuple),
+
+ {'EXIT', {badarg,_}} = (catch list_to_tuple(lists:seq(1, 1 bsl 24))),
ok.
%% Tests tuple_to_list/1.
@@ -199,12 +205,22 @@ t_tuple_to_list(Config) when is_list(Config) ->
%% Tests the make_tuple/2 BIF.
t_make_tuple_2(Config) when is_list(Config) ->
- ?line t_make_tuple1([]),
- ?line t_make_tuple1(42),
- ?line t_make_tuple1(a),
- ?line t_make_tuple1({}),
- ?line t_make_tuple1({a}),
- ?line t_make_tuple1(erlang:make_tuple(400, [])),
+ t_make_tuple1([]),
+ t_make_tuple1(42),
+ t_make_tuple1(a),
+ t_make_tuple1({}),
+ t_make_tuple1({a}),
+ t_make_tuple1(erlang:make_tuple(400, [])),
+
+ % test upper boundry, 16777215 elements
+ t_make_tuple(1 bsl 24 - 1, a),
+ {'EXIT', {badarg,_}} = (catch erlang:make_tuple(1 bsl 24, a)),
+
+ {'EXIT', {badarg,_}} = (catch erlang:make_tuple(-1, a)),
+ % 26 bits is the total header arity room (for now)
+ {'EXIT', {badarg,_}} = (catch erlang:make_tuple(1 bsl 26 + 3, a)),
+ % bignum
+ {'EXIT', {badarg,_}} = (catch erlang:make_tuple(1 bsl 65 + 3, a)),
ok.
t_make_tuple1(Element) ->
@@ -222,29 +238,39 @@ t_make_tuple(Size, Element) ->
%% Tests the erlang:make_tuple/3 BIF.
t_make_tuple_3(Config) when is_list(Config) ->
- ?line {} = erlang:make_tuple(0, def, []),
- ?line {def} = erlang:make_tuple(1, def, []),
- ?line {a} = erlang:make_tuple(1, def, [{1,a}]),
- ?line {a,def,c,def,e} = erlang:make_tuple(5, def, [{5,e},{1,a},{3,c}]),
- ?line {a,def,c,def,e} = erlang:make_tuple(5, def,
- [{1,blurf},{5,e},{3,blurf},
- {1,a},{3,c}]),
+ {} = erlang:make_tuple(0, def, []),
+ {def} = erlang:make_tuple(1, def, []),
+ {a} = erlang:make_tuple(1, def, [{1,a}]),
+
+ {a,def,c,def,e} = erlang:make_tuple(5, def, [{5,e},{1,a},{3,c}]),
+ {a,def,c,def,e} = erlang:make_tuple(5, def, [{1,blurf},{5,e},{3,blurf},{1,a},{3,c}]),
+ MaxSize = 1 bsl 16 - 1,
+ MaxTuple = erlang:make_tuple(MaxSize, def, [{1,blurf},{5,e},{3,blurf},{1,a},{3,c}]),
+ MaxSize = size(MaxTuple),
%% Error cases.
- ?line {'EXIT',{badarg,_}} = (catch erlang:make_tuple(0, def, [{1,a}])),
- ?line {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, [{-1,a}])),
- ?line {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, [{0,a}])),
- ?line {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, [{6,z}])),
- ?line {'EXIT',{badarg,_}} = (catch erlang:make_tuple(a, def, [{6,z}])),
- ?line {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, [{1,a}|b])),
- ?line {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, [42])),
- ?line {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, [[a,b,c]])),
- ?line {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, non_list)),
+ {'EXIT',{badarg,_}} = (catch erlang:make_tuple(0, def, [{1,a}])),
+ {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, [{-1,a}])),
+ {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, [{0,a}])),
+ {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, [{6,z}])),
+ {'EXIT',{badarg,_}} = (catch erlang:make_tuple(a, def, [{6,z}])),
+ {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, [{1,a}|b])),
+ {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, [42])),
+ {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, [[a,b,c]])),
+ {'EXIT',{badarg,_}} = (catch erlang:make_tuple(5, def, non_list)),
+ {'EXIT',{badarg,_}} = (catch erlang:make_tuple(1 bsl 24, def, [{5,e},{1,a},{3,c}])),
+
ok.
%% Tests the append_element/2 BIF.
t_append_element(Config) when is_list(Config) ->
- t_append_element({}, 2048, 2048).
+ ok = t_append_element({}, 2048, 2048),
+
+ % test upper boundry, 16777215 elements
+ MaxSize = 1 bsl 24 - 1,
+ MaxTuple = list_to_tuple(lists:seq(1, MaxSize)),
+ {'EXIT',{badarg,_}} = (catch erlang:append_element(MaxTuple, a)),
+ ok.
t_append_element(_Tuple, 0, _High) -> ok;
t_append_element(Tuple, N, High) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 10:43:37 +0000