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Merge pull request #14006 from MathiasVP/promote-invalid-pointer-deref-out-of-experimental

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C++: Promote `cpp/invalid-pointer-deref` out of experimental
This commit is contained in:
Mathias Vorreiter Pedersen
2023-08-29 09:38:56 +01:00
committed by GitHub
parent f3a77c6006 b948ed9045
commit d14ad92dbd
22 changed files with 230 additions and 154 deletions
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1
cpp/ql/test/experimental/query-tests/Security/CWE/CWE-193/pointer-deref/InvalidPointerDeref.qlref
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@@ -1 +0,0 @@
experimental/Security/CWE/CWE-193/InvalidPointerDeref.ql

2
cpp/ql/test/experimental/query-tests/Security/CWE/CWE-193/pointer-deref/AllocationToInvalidPointer.expected → cpp/ql/test/query-tests/Security/CWE/CWE-193/AllocationToInvalidPointer.expected
View File

@@ -1,2 +1,2 @@
failures
testFailures
failures

0
cpp/ql/test/experimental/query-tests/Security/CWE/CWE-193/pointer-deref/AllocationToInvalidPointer.ql → cpp/ql/test/query-tests/Security/CWE/CWE-193/AllocationToInvalidPointer.ql
View File

123
cpp/ql/test/experimental/query-tests/Security/CWE/CWE-193/pointer-deref/InvalidPointerDeref.expected → cpp/ql/test/query-tests/Security/CWE/CWE-193/InvalidPointerDeref.expected
View File

@@ -45,58 +45,6 @@ edges
| test.cpp:53:5:53:23 | ... = ... | test.cpp:51:33:51:35 | end |
| test.cpp:53:12:53:23 | ... + ... | test.cpp:53:5:53:23 | ... = ... |
| test.cpp:60:34:60:37 | mk_array output argument | test.cpp:67:9:67:14 | ... = ... |
| test.cpp:80:9:80:16 | mk_array indirection [end] | test.cpp:89:19:89:26 | call to mk_array [end] |
| test.cpp:80:9:80:16 | mk_array indirection [end] | test.cpp:119:18:119:25 | call to mk_array [end] |
| test.cpp:82:5:82:28 | ... = ... | test.cpp:82:9:82:13 | arr indirection [post update] [begin] |
| test.cpp:82:9:82:13 | arr indirection [post update] [begin] | test.cpp:83:15:83:17 | arr indirection [begin] |
| test.cpp:82:17:82:22 | call to malloc | test.cpp:82:5:82:28 | ... = ... |
| test.cpp:83:5:83:30 | ... = ... | test.cpp:83:9:83:11 | arr indirection [post update] [end] |
| test.cpp:83:9:83:11 | arr indirection [post update] [end] | test.cpp:80:9:80:16 | mk_array indirection [end] |
| test.cpp:83:15:83:17 | arr indirection [begin] | test.cpp:83:19:83:23 | begin indirection |
| test.cpp:83:15:83:30 | ... + ... | test.cpp:83:5:83:30 | ... = ... |
| test.cpp:83:19:83:23 | begin indirection | test.cpp:83:5:83:30 | ... = ... |
| test.cpp:83:19:83:23 | begin indirection | test.cpp:83:15:83:30 | ... + ... |
| test.cpp:89:19:89:26 | call to mk_array [end] | test.cpp:91:36:91:38 | arr indirection [end] |
| test.cpp:89:19:89:26 | call to mk_array [end] | test.cpp:95:36:95:38 | arr indirection [end] |
| test.cpp:91:36:91:38 | arr indirection [end] | test.cpp:91:40:91:42 | end indirection |
| test.cpp:91:36:91:38 | arr indirection [end] | test.cpp:96:9:96:14 | ... = ... |
| test.cpp:91:40:91:42 | end indirection | test.cpp:96:9:96:14 | ... = ... |
| test.cpp:95:36:95:38 | arr indirection [end] | test.cpp:95:40:95:42 | end indirection |
| test.cpp:95:36:95:38 | arr indirection [end] | test.cpp:96:9:96:14 | ... = ... |
| test.cpp:95:40:95:42 | end indirection | test.cpp:96:9:96:14 | ... = ... |
| test.cpp:104:27:104:29 | arr [end] | test.cpp:105:36:105:38 | arr indirection [end] |
| test.cpp:104:27:104:29 | arr [end] | test.cpp:109:36:109:38 | arr indirection [end] |
| test.cpp:105:36:105:38 | arr indirection [end] | test.cpp:105:40:105:42 | end indirection |
| test.cpp:105:36:105:38 | arr indirection [end] | test.cpp:110:9:110:14 | ... = ... |
| test.cpp:105:40:105:42 | end indirection | test.cpp:110:9:110:14 | ... = ... |
| test.cpp:109:36:109:38 | arr indirection [end] | test.cpp:109:40:109:42 | end indirection |
| test.cpp:109:36:109:38 | arr indirection [end] | test.cpp:110:9:110:14 | ... = ... |
| test.cpp:109:40:109:42 | end indirection | test.cpp:110:9:110:14 | ... = ... |
| test.cpp:119:18:119:25 | call to mk_array [end] | test.cpp:104:27:104:29 | arr [end] |
| test.cpp:141:10:141:19 | mk_array_p indirection [end] | test.cpp:150:20:150:29 | call to mk_array_p indirection [end] |
| test.cpp:141:10:141:19 | mk_array_p indirection [end] | test.cpp:180:19:180:28 | call to mk_array_p indirection [end] |
| test.cpp:143:5:143:29 | ... = ... | test.cpp:143:10:143:14 | arr indirection [post update] [begin] |
| test.cpp:143:10:143:14 | arr indirection [post update] [begin] | test.cpp:144:16:144:18 | arr indirection [begin] |
| test.cpp:143:18:143:23 | call to malloc | test.cpp:143:5:143:29 | ... = ... |
| test.cpp:144:5:144:32 | ... = ... | test.cpp:144:10:144:12 | arr indirection [post update] [end] |
| test.cpp:144:10:144:12 | arr indirection [post update] [end] | test.cpp:141:10:141:19 | mk_array_p indirection [end] |
| test.cpp:144:16:144:18 | arr indirection [begin] | test.cpp:144:21:144:25 | begin indirection |
| test.cpp:144:16:144:32 | ... + ... | test.cpp:144:5:144:32 | ... = ... |
| test.cpp:144:21:144:25 | begin indirection | test.cpp:144:5:144:32 | ... = ... |
| test.cpp:144:21:144:25 | begin indirection | test.cpp:144:16:144:32 | ... + ... |
| test.cpp:150:20:150:29 | call to mk_array_p indirection [end] | test.cpp:156:37:156:39 | arr indirection [end] |
| test.cpp:156:37:156:39 | arr indirection [end] | test.cpp:156:42:156:44 | end indirection |
| test.cpp:156:37:156:39 | arr indirection [end] | test.cpp:157:9:157:14 | ... = ... |
| test.cpp:156:42:156:44 | end indirection | test.cpp:157:9:157:14 | ... = ... |
| test.cpp:165:29:165:31 | arr indirection [end] | test.cpp:166:37:166:39 | arr indirection [end] |
| test.cpp:165:29:165:31 | arr indirection [end] | test.cpp:170:37:170:39 | arr indirection [end] |
| test.cpp:166:37:166:39 | arr indirection [end] | test.cpp:166:42:166:44 | end indirection |
| test.cpp:166:37:166:39 | arr indirection [end] | test.cpp:171:9:171:14 | ... = ... |
| test.cpp:166:42:166:44 | end indirection | test.cpp:171:9:171:14 | ... = ... |
| test.cpp:170:37:170:39 | arr indirection [end] | test.cpp:170:42:170:44 | end indirection |
| test.cpp:170:37:170:39 | arr indirection [end] | test.cpp:171:9:171:14 | ... = ... |
| test.cpp:170:42:170:44 | end indirection | test.cpp:171:9:171:14 | ... = ... |
| test.cpp:180:19:180:28 | call to mk_array_p indirection [end] | test.cpp:165:29:165:31 | arr indirection [end] |
| test.cpp:194:23:194:28 | call to malloc | test.cpp:195:17:195:23 | ... + ... |
| test.cpp:194:23:194:28 | call to malloc | test.cpp:195:17:195:23 | ... + ... |
| test.cpp:194:23:194:28 | call to malloc | test.cpp:201:5:201:19 | ... = ... |
@@ -233,6 +181,18 @@ edges
| test.cpp:754:18:754:31 | new[] | test.cpp:772:16:772:29 | access to array |
| test.cpp:754:18:754:31 | new[] | test.cpp:772:16:772:29 | access to array |
| test.cpp:781:14:781:27 | new[] | test.cpp:786:18:786:27 | access to array |
| test.cpp:792:60:792:62 | end | test.cpp:800:40:800:43 | mk_array_no_field_flow output argument |
| test.cpp:792:60:792:62 | end | test.cpp:832:40:832:43 | mk_array_no_field_flow output argument |
| test.cpp:793:14:793:19 | call to malloc | test.cpp:794:5:794:24 | ... = ... |
| test.cpp:793:14:793:19 | call to malloc | test.cpp:794:12:794:24 | ... + ... |
| test.cpp:794:5:794:24 | ... = ... | test.cpp:792:60:792:62 | end |
| test.cpp:794:12:794:24 | ... + ... | test.cpp:794:5:794:24 | ... = ... |
| test.cpp:800:40:800:43 | mk_array_no_field_flow output argument | test.cpp:807:7:807:12 | ... = ... |
| test.cpp:815:52:815:54 | end | test.cpp:815:52:815:54 | end |
| test.cpp:815:52:815:54 | end | test.cpp:821:7:821:12 | ... = ... |
| test.cpp:815:52:815:54 | end | test.cpp:821:7:821:12 | ... = ... |
| test.cpp:832:40:832:43 | mk_array_no_field_flow output argument | test.cpp:833:37:833:39 | end |
| test.cpp:833:37:833:39 | end | test.cpp:815:52:815:54 | end |
nodes
| test.cpp:4:15:4:20 | call to malloc | semmle.label | call to malloc |
| test.cpp:5:15:5:22 | ... + ... | semmle.label | ... + ... |
@@ -260,48 +220,6 @@ nodes
| test.cpp:53:12:53:23 | ... + ... | semmle.label | ... + ... |
| test.cpp:60:34:60:37 | mk_array output argument | semmle.label | mk_array output argument |
| test.cpp:67:9:67:14 | ... = ... | semmle.label | ... = ... |
| test.cpp:80:9:80:16 | mk_array indirection [end] | semmle.label | mk_array indirection [end] |
| test.cpp:82:5:82:28 | ... = ... | semmle.label | ... = ... |
| test.cpp:82:9:82:13 | arr indirection [post update] [begin] | semmle.label | arr indirection [post update] [begin] |
| test.cpp:82:17:82:22 | call to malloc | semmle.label | call to malloc |
| test.cpp:83:5:83:30 | ... = ... | semmle.label | ... = ... |
| test.cpp:83:9:83:11 | arr indirection [post update] [end] | semmle.label | arr indirection [post update] [end] |
| test.cpp:83:15:83:17 | arr indirection [begin] | semmle.label | arr indirection [begin] |
| test.cpp:83:15:83:30 | ... + ... | semmle.label | ... + ... |
| test.cpp:83:19:83:23 | begin indirection | semmle.label | begin indirection |
| test.cpp:89:19:89:26 | call to mk_array [end] | semmle.label | call to mk_array [end] |
| test.cpp:91:36:91:38 | arr indirection [end] | semmle.label | arr indirection [end] |
| test.cpp:91:40:91:42 | end indirection | semmle.label | end indirection |
| test.cpp:95:36:95:38 | arr indirection [end] | semmle.label | arr indirection [end] |
| test.cpp:95:40:95:42 | end indirection | semmle.label | end indirection |
| test.cpp:96:9:96:14 | ... = ... | semmle.label | ... = ... |
| test.cpp:104:27:104:29 | arr [end] | semmle.label | arr [end] |
| test.cpp:105:36:105:38 | arr indirection [end] | semmle.label | arr indirection [end] |
| test.cpp:105:40:105:42 | end indirection | semmle.label | end indirection |
| test.cpp:109:36:109:38 | arr indirection [end] | semmle.label | arr indirection [end] |
| test.cpp:109:40:109:42 | end indirection | semmle.label | end indirection |
| test.cpp:110:9:110:14 | ... = ... | semmle.label | ... = ... |
| test.cpp:119:18:119:25 | call to mk_array [end] | semmle.label | call to mk_array [end] |
| test.cpp:141:10:141:19 | mk_array_p indirection [end] | semmle.label | mk_array_p indirection [end] |
| test.cpp:143:5:143:29 | ... = ... | semmle.label | ... = ... |
| test.cpp:143:10:143:14 | arr indirection [post update] [begin] | semmle.label | arr indirection [post update] [begin] |
| test.cpp:143:18:143:23 | call to malloc | semmle.label | call to malloc |
| test.cpp:144:5:144:32 | ... = ... | semmle.label | ... = ... |
| test.cpp:144:10:144:12 | arr indirection [post update] [end] | semmle.label | arr indirection [post update] [end] |
| test.cpp:144:16:144:18 | arr indirection [begin] | semmle.label | arr indirection [begin] |
| test.cpp:144:16:144:32 | ... + ... | semmle.label | ... + ... |
| test.cpp:144:21:144:25 | begin indirection | semmle.label | begin indirection |
| test.cpp:150:20:150:29 | call to mk_array_p indirection [end] | semmle.label | call to mk_array_p indirection [end] |
| test.cpp:156:37:156:39 | arr indirection [end] | semmle.label | arr indirection [end] |
| test.cpp:156:42:156:44 | end indirection | semmle.label | end indirection |
| test.cpp:157:9:157:14 | ... = ... | semmle.label | ... = ... |
| test.cpp:165:29:165:31 | arr indirection [end] | semmle.label | arr indirection [end] |
| test.cpp:166:37:166:39 | arr indirection [end] | semmle.label | arr indirection [end] |
| test.cpp:166:42:166:44 | end indirection | semmle.label | end indirection |
| test.cpp:170:37:170:39 | arr indirection [end] | semmle.label | arr indirection [end] |
| test.cpp:170:42:170:44 | end indirection | semmle.label | end indirection |
| test.cpp:171:9:171:14 | ... = ... | semmle.label | ... = ... |
| test.cpp:180:19:180:28 | call to mk_array_p indirection [end] | semmle.label | call to mk_array_p indirection [end] |
| test.cpp:194:23:194:28 | call to malloc | semmle.label | call to malloc |
| test.cpp:195:17:195:23 | ... + ... | semmle.label | ... + ... |
| test.cpp:195:17:195:23 | ... + ... | semmle.label | ... + ... |
@@ -394,6 +312,17 @@ nodes
| test.cpp:772:16:772:29 | access to array | semmle.label | access to array |
| test.cpp:781:14:781:27 | new[] | semmle.label | new[] |
| test.cpp:786:18:786:27 | access to array | semmle.label | access to array |
| test.cpp:792:60:792:62 | end | semmle.label | end |
| test.cpp:793:14:793:19 | call to malloc | semmle.label | call to malloc |
| test.cpp:794:5:794:24 | ... = ... | semmle.label | ... = ... |
| test.cpp:794:12:794:24 | ... + ... | semmle.label | ... + ... |
| test.cpp:800:40:800:43 | mk_array_no_field_flow output argument | semmle.label | mk_array_no_field_flow output argument |
| test.cpp:807:7:807:12 | ... = ... | semmle.label | ... = ... |
| test.cpp:815:52:815:54 | end | semmle.label | end |
| test.cpp:815:52:815:54 | end | semmle.label | end |
| test.cpp:821:7:821:12 | ... = ... | semmle.label | ... = ... |
| test.cpp:832:40:832:43 | mk_array_no_field_flow output argument | semmle.label | mk_array_no_field_flow output argument |
| test.cpp:833:37:833:39 | end | semmle.label | end |
subpaths
#select
| test.cpp:6:14:6:15 | * ... | test.cpp:4:15:4:20 | call to malloc | test.cpp:6:14:6:15 | * ... | This read might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:4:15:4:20 | call to malloc | call to malloc | test.cpp:5:19:5:22 | size | size |
@@ -404,10 +333,6 @@ subpaths
| test.cpp:42:14:42:15 | * ... | test.cpp:40:15:40:20 | call to malloc | test.cpp:42:14:42:15 | * ... | This read might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:40:15:40:20 | call to malloc | call to malloc | test.cpp:41:20:41:27 | ... - ... | ... - ... |
| test.cpp:44:14:44:21 | * ... | test.cpp:40:15:40:20 | call to malloc | test.cpp:44:14:44:21 | * ... | This read might be out of bounds, as the pointer might be equal to $@ + $@ + 1. | test.cpp:40:15:40:20 | call to malloc | call to malloc | test.cpp:41:20:41:27 | ... - ... | ... - ... |
| test.cpp:67:9:67:14 | ... = ... | test.cpp:52:19:52:24 | call to malloc | test.cpp:67:9:67:14 | ... = ... | This write might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:52:19:52:24 | call to malloc | call to malloc | test.cpp:53:20:53:23 | size | size |
| test.cpp:96:9:96:14 | ... = ... | test.cpp:82:17:82:22 | call to malloc | test.cpp:96:9:96:14 | ... = ... | This write might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:82:17:82:22 | call to malloc | call to malloc | test.cpp:83:27:83:30 | size | size |
| test.cpp:110:9:110:14 | ... = ... | test.cpp:82:17:82:22 | call to malloc | test.cpp:110:9:110:14 | ... = ... | This write might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:82:17:82:22 | call to malloc | call to malloc | test.cpp:83:27:83:30 | size | size |
| test.cpp:157:9:157:14 | ... = ... | test.cpp:143:18:143:23 | call to malloc | test.cpp:157:9:157:14 | ... = ... | This write might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:143:18:143:23 | call to malloc | call to malloc | test.cpp:144:29:144:32 | size | size |
| test.cpp:171:9:171:14 | ... = ... | test.cpp:143:18:143:23 | call to malloc | test.cpp:171:9:171:14 | ... = ... | This write might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:143:18:143:23 | call to malloc | call to malloc | test.cpp:144:29:144:32 | size | size |
| test.cpp:201:5:201:19 | ... = ... | test.cpp:194:23:194:28 | call to malloc | test.cpp:201:5:201:19 | ... = ... | This write might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:194:23:194:28 | call to malloc | call to malloc | test.cpp:195:21:195:23 | len | len |
| test.cpp:213:5:213:13 | ... = ... | test.cpp:205:23:205:28 | call to malloc | test.cpp:213:5:213:13 | ... = ... | This write might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:205:23:205:28 | call to malloc | call to malloc | test.cpp:206:21:206:23 | len | len |
| test.cpp:232:3:232:20 | ... = ... | test.cpp:231:18:231:30 | new[] | test.cpp:232:3:232:20 | ... = ... | This write might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:231:18:231:30 | new[] | new[] | test.cpp:232:11:232:15 | index | index |
@@ -434,3 +359,5 @@ subpaths
| test.cpp:772:16:772:29 | access to array | test.cpp:754:18:754:31 | new[] | test.cpp:772:16:772:29 | access to array | This read might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:754:18:754:31 | new[] | new[] | test.cpp:767:22:767:28 | ... + ... | ... + ... |
| test.cpp:772:16:772:29 | access to array | test.cpp:754:18:754:31 | new[] | test.cpp:772:16:772:29 | access to array | This read might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:754:18:754:31 | new[] | new[] | test.cpp:772:22:772:28 | ... + ... | ... + ... |
| test.cpp:786:18:786:27 | access to array | test.cpp:781:14:781:27 | new[] | test.cpp:786:18:786:27 | access to array | This read might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:781:14:781:27 | new[] | new[] | test.cpp:786:20:786:26 | ... + ... | ... + ... |
| test.cpp:807:7:807:12 | ... = ... | test.cpp:793:14:793:19 | call to malloc | test.cpp:807:7:807:12 | ... = ... | This write might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:793:14:793:19 | call to malloc | call to malloc | test.cpp:794:21:794:24 | size | size |
| test.cpp:821:7:821:12 | ... = ... | test.cpp:793:14:793:19 | call to malloc | test.cpp:821:7:821:12 | ... = ... | This write might be out of bounds, as the pointer might be equal to $@ + $@. | test.cpp:793:14:793:19 | call to malloc | call to malloc | test.cpp:794:21:794:24 | size | size |

1
cpp/ql/test/query-tests/Security/CWE/CWE-193/InvalidPointerDeref.qlref Normal file
View File

@@ -0,0 +1 @@
Security/CWE/CWE-193/InvalidPointerDeref.ql

2
cpp/ql/test/experimental/query-tests/Security/CWE/CWE-193/pointer-deref/InvalidPointerToDereference.expected → cpp/ql/test/query-tests/Security/CWE/CWE-193/InvalidPointerToDereference.expected
View File

@@ -1,2 +1,2 @@
failures
testFailures
failures

0
cpp/ql/test/experimental/query-tests/Security/CWE/CWE-193/pointer-deref/InvalidPointerToDereference.ql → cpp/ql/test/query-tests/Security/CWE/CWE-193/InvalidPointerToDereference.ql
View File

58
cpp/ql/test/experimental/query-tests/Security/CWE/CWE-193/pointer-deref/test.cpp → cpp/ql/test/query-tests/Security/CWE/CWE-193/test.cpp
View File

@@ -80,7 +80,7 @@ struct array_t {
array_t mk_array(int size) {
array_t arr;
arr.begin = malloc(size);
arr.end = arr.begin + size; // $ alloc=L82
arr.end = arr.begin + size; // $ MISSING: alloc=L82
return arr;
}
@@ -93,7 +93,7 @@ void test6(int size) {
}
for (char* p = arr.begin; p <= arr.end; ++p) {
*p = 0; // $ deref=L83->L91->L96 deref=L83->L95->L96 // BAD
*p = 0; // $ MISSING: deref=L83->L91->L96 deref=L83->L95->L96 // BAD [NOT DETECTED]
}
for (char* p = arr.begin; p < arr.end; ++p) {
@@ -107,7 +107,7 @@ void test7_callee(array_t arr) {
}
for (char* p = arr.begin; p <= arr.end; ++p) {
*p = 0; // $ deref=L83->L105->L110 deref=L83->L109->L110 // BAD
*p = 0; // $ MISSING: deref=L83->L105->L110 deref=L83->L109->L110 // BAD [NOT DETECTED]
}
for (char* p = arr.begin; p < arr.end; ++p) {
@@ -141,7 +141,7 @@ void test8(int size) {
array_t *mk_array_p(int size) {
array_t *arr = (array_t*) malloc(sizeof(array_t));
arr->begin = malloc(size);
arr->end = arr->begin + size; // $ alloc=L143
arr->end = arr->begin + size; // $ MISSING: alloc=L143
return arr;
}
@@ -154,7 +154,7 @@ void test9(int size) {
}
for (char* p = arr->begin; p <= arr->end; ++p) {
*p = 0; // $ deref=L144->L156->L157 // BAD
*p = 0; // $ MISSING: deref=L144->L156->L157 // BAD [NOT DETECTED]
}
for (char* p = arr->begin; p < arr->end; ++p) {
@@ -168,7 +168,7 @@ void test10_callee(array_t *arr) {
}
for (char* p = arr->begin; p <= arr->end; ++p) {
*p = 0; // $ deref=L144->L166->L171 deref=L144->L170->L171 // BAD
*p = 0; // $ MISSING: deref=L144->L166->L171 deref=L144->L170->L171 // BAD [NOT DETECTED]
}
for (char* p = arr->begin; p < arr->end; ++p) {
@@ -787,4 +787,48 @@ void test38_simple(unsigned size, unsigned pos, unsigned numParams) {
}
}
}
}
}
void mk_array_no_field_flow(int size, char** begin, char** end) {
*begin = malloc(size);
*end = *begin + size; // $ alloc=L793
}
void test6_no_field_flow(int size) {
char* begin;
char* end;
mk_array_no_field_flow(size, &begin, &end);
for (char* p = begin; p != end; ++p) {
*p = 0; // GOOD
}
for (char* p = begin; p <= end; ++p) {
*p = 0; // $ deref=L794->L802->L807 deref=L794->L806->L807 // BAD
}
for (char* p = begin; p < end; ++p) {
*p = 0; // GOOD
}
}
void test7_callee_no_field_flow(char* begin, char* end) {
for (char* p = begin; p != end; ++p) {
*p = 0; // GOOD
}
for (char* p = begin; p <= end; ++p) {
*p = 0; // $ deref=L794->L815->L821 deref=L794->L816->L821 deref=L794->L820->L821 // BAD
}
for (char* p = begin; p < end; ++p) {
*p = 0; // GOOD
}
}
void test7_no_field_flow(int size) {
char* begin;
char* end;
mk_array_no_field_flow(size, &begin, &end);
test7_callee_no_field_flow(begin, end);
}