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710 Commits

Author SHA1 Message Date
Mathias Vorreiter Pedersen
9da7c9f696 C++: Use heuristic allocation in 'cpp/overrun-write'. 2023-05-10 08:22:56 +01:00
Kasper Svendsen
c46898cb75 C++: Make implicit this receivers explicit 2023-05-09 15:35:54 +02:00
Mathias Vorreiter Pedersen
2021f46f19 C++: Add QLDoc to 'getOverflow'. 2023-05-09 08:52:08 +01:00
Robert Marsh
b7653ec92d C++: ignore cast arrays in constant off-by-one query 2023-05-04 16:39:02 -04:00
Robert Marsh
3abf5d1bd2 C++: stitch paths in array off-by-one query 2023-05-04 16:28:05 -04:00
Mathias Vorreiter Pedersen
2587f8ed96 C++: Only alert on the largest possible overflow. 2023-05-04 17:29:31 +01:00
Mathias Vorreiter Pedersen
faf846bd58 C++: Disable flow through nodes that are sources of phi edges' back edges. 2023-04-28 11:36:42 +01:00
Mathias Vorreiter Pedersen
7eee589304 Merge pull request #12569 from andersfugmann/andersfugmann/use_after_free 
C++: Implement use-after-free and double-free queries using the new IR use-use dataflow
 2023-04-17 08:01:58 +01:00
Mathias Vorreiter Pedersen
d1e3c1b407 C++: Fix joins in 'select' of 'cpp/constant-array-overflow'. 2023-04-12 11:39:35 +01:00
Mathias Vorreiter Pedersen
17fe5f2317 C++: Change the id of the experimental double-free query to not overlap with the new non-experimental one. 2023-04-11 15:21:21 +01:00
Jeroen Ketema
9123657fd2 C++: Update product flow to match data flow naming 2023-04-06 17:13:12 +02:00
Jeroen Ketema
886abd1231 C++: Fix typo 2023-04-06 17:11:03 +02:00
Jeroen Ketema
39272def2d C++: Clean up the ProductFlow FlowStates 2023-04-06 17:10:44 +02:00
Jeroen Ketema
4e12924521 C++: Refactor ProductFlow to have a DataFlow::ConfigSig-like interface 2023-04-06 17:10:40 +02:00
Jeroen Ketema
8e7eec173b C++: inline isInvalidPointerDerefSink 2023-04-06 12:49:10 +02:00
Jeroen Ketema
f98576bcb4 C++: Fix number of join order problems in memory corruption queries 2023-04-06 10:53:18 +02:00
Mathias Vorreiter Pedersen
f007083ef0 C++: Switch back to a 'Bound' instead of a 'SemBound'. 2023-04-04 09:43:23 +01:00
Mathias Vorreiter Pedersen
c19edc5f0b C++: Fix Code Scanning errors. 2023-04-03 15:17:37 +01:00
Mathias Vorreiter Pedersen
aa337c72c2 C++: Update import paths in tests and experimental queries. 2023-04-03 15:17:37 +01:00
Mathias Vorreiter Pedersen
cbd4662696 Merge branch 'main' into skip-safe-conversions-in-range-analysis 2023-03-27 21:18:49 +01:00
Jeroen Ketema
213c4b0818 C++: Fix join-order problem in cpp/overrun-write 
Before on Wireshark:
```
[2023-03-27 12:59:25] Evaluated non-recursive predicate OverrunWriteProductFlow#fb5ce006::isSinkPairImpl#5#fffff@2ba90584 in 99742ms (size: 52640).
Evaluated relational algebra for predicate OverrunWriteProductFlow#fb5ce006::isSinkPairImpl#5#fffff@2ba90584 with tuple counts:
        1047588019  ~1%    {3} r1 = JOIN DataFlowUtil#47741e1f::InstructionNode#fff_20#join_rhs WITH OverrunWriteProductFlow#fb5ce006::bounded#3#fff_102#join_rhs ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Rhs.2
          67558965  ~0%    {4} r2 = JOIN r1 WITH Instruction#577b6a83::CallInstruction::getArgument#fbf_201#join_rhs ON FIRST 1 OUTPUT Rhs.2, Lhs.1, Lhs.2, Rhs.1
         613572640  ~0%    {5} r3 = JOIN r2 WITH ArrayFunction#ca0b6b68::ArrayFunction::hasArrayWithVariableSize#2#dispred#fff_201#join_rhs ON FIRST 1 OUTPUT Lhs.3, Rhs.1, Lhs.1, Lhs.2, Rhs.2
             52640  ~0%    {4} r4 = JOIN r3 WITH Instruction#577b6a83::CallInstruction::getStaticCallTarget#0#dispred#ff ON FIRST 2 OUTPUT Lhs.0, Lhs.4, Lhs.2, Lhs.3
             52640  ~0%    {4} r5 = JOIN r4 WITH Instruction#577b6a83::CallInstruction::getArgument#fbf ON FIRST 2 OUTPUT Rhs.2, Lhs.2, Lhs.3, Lhs.0
             52640  ~0%    {5} r6 = JOIN r5 WITH DataFlowUtil#47741e1f::InstructionNode#fff_20#join_rhs ON FIRST 1 OUTPUT Lhs.0, Lhs.1, Lhs.2, Lhs.3, Rhs.1
             52640  ~0%    {5} r7 = JOIN r6 WITH Instruction#577b6a83::Instruction::getUnconvertedResultExpression#0#dispred#ff ON FIRST 1 OUTPUT Lhs.3, Lhs.4, Lhs.1, Lhs.2, Rhs.1
                           return r7
```

After:
```
[2023-03-27 13:56:36] Evaluated non-recursive predicate OverrunWriteProductFlow#fb5ce006::isSinkPairImpl#5#fffff@f936aapd in 777ms (size: 52640).
Evaluated relational algebra for predicate OverrunWriteProductFlow#fb5ce006::isSinkPairImpl#5#fffff@f936aapd with tuple counts:
        565480  ~5%    {2} r1 = SCAN Instruction#577b6a83::CallInstruction::getStaticCallTarget#0#dispred#ff OUTPUT In.1, In.0
          4420  ~1%    {3} r2 = JOIN r1 WITH ArrayFunction#ca0b6b68::ArrayFunction::hasArrayWithVariableSize#2#dispred#fff ON FIRST 1 OUTPUT Lhs.1, Rhs.1, Rhs.2
          4420  ~0%    {3} r3 = JOIN r2 WITH Instruction#577b6a83::CallInstruction::getArgument#fff ON FIRST 2 OUTPUT Rhs.2, Lhs.2, Lhs.0
          4420  ~0%    {4} r4 = JOIN r3 WITH DataFlowUtil#47741e1f::InstructionNode#fff_20#join_rhs ON FIRST 1 OUTPUT Lhs.0, Lhs.1, Lhs.2, Rhs.1
          4420  ~0%    {4} r5 = JOIN r4 WITH Instruction#577b6a83::Instruction::getUnconvertedResultExpression#0#dispred#ff ON FIRST 1 OUTPUT Lhs.2, Lhs.1, Lhs.3, Rhs.1
          4420  ~3%    {4} r6 = JOIN r5 WITH Instruction#577b6a83::CallInstruction::getArgument#fff ON FIRST 2 OUTPUT Rhs.2, Lhs.0, Lhs.2, Lhs.3
         52825  ~0%    {5} r7 = JOIN r6 WITH OverrunWriteProductFlow#fb5ce006::bounded#3#fff ON FIRST 1 OUTPUT Rhs.1, Lhs.1, Lhs.2, Lhs.3, Rhs.2
         52640  ~0%    {5} r8 = JOIN r7 WITH DataFlowUtil#47741e1f::InstructionNode#fff_20#join_rhs ON FIRST 1 OUTPUT Lhs.1, Lhs.2, Rhs.1, Lhs.4, Lhs.3
                       return r8
```
 2023-03-27 14:28:22 +02:00
Mathias Vorreiter Pedersen
125c013052 Merge branch 'main' into skip-safe-conversions-in-range-analysis 2023-03-24 17:01:11 +00:00
Anders Schack-Mulligen
978c5f7bd8 Java/C++: Autoformat 2023-03-23 13:06:19 +01:00
Anders Schack-Mulligen
72415c7c2c C++: Rename references. 2023-03-23 13:06:19 +01:00
Mathias Vorreiter Pedersen
d325082db3 C++: Fix another place that assumed that 'Expr' was always 'Instruction'. 2023-03-22 16:51:39 +00:00
Jeroen Ketema
2fdfa0808a C++: Refactor experimental queries to use DataFlow::ConfigSig 2023-03-21 09:16:59 +01:00
Ed Minnix
2d5944fb0e Refactor DataFlow configurations to use "Config" naming convention 2023-03-19 17:44:07 -04:00
Nicky Mouha
dc09c9218e Update IfStatementAdditionOverflow.ql 2023-03-12 01:05:18 -05:00
Jeroen Ketema
661160a98e C++: Update PrivateCleartextWrite with DataFlow::ConfigSig 2023-03-08 15:04:45 +01:00
Jeroen Ketema
fb57914751 C++: Convert a number of data flow based queries to use ConfigSig 2023-03-07 18:21:52 +01:00
Mathias Vorreiter Pedersen
63690066c5 Merge branch 'main' into mathiasvp/replace-ast-with-ir-use-usedataflow 2023-03-07 13:06:43 +00:00
Jeroen Ketema
47930f94e2 Merge remote-tracking branch 'upstream/main' into merge-main 2023-03-06 15:20:39 +01:00
Jeroen Ketema
aa00424b75 C++: Fix experimental query that uses the deprecated freeCall predicate 2023-03-03 17:53:49 +01:00
Geoffrey White
7b596f4928 Merge pull request #10431 from ihsinme/ihsinme-patch-111 
CPP: Add query for CWE-369: Divide By Zero.
 2023-03-03 10:42:04 +00:00
Nicky Mouha
08f04d5386 Update IfStatementAdditionOverflow.ql 2023-02-23 17:50:02 -05:00
Nicky Mouha
ed75172bdd Update IfStatementAdditionOverflow.ql 2023-02-21 18:11:22 -05:00
ihsinme
49af5ec536 Update DivideByZeroUsingReturnValue.ql 2023-02-19 21:41:28 +03:00
Nicky Mouha
f577a04eab Update IfStatementAdditionOverflow.ql 2023-02-18 21:34:03 -05:00
Jeroen Ketema
7bd28183ba Merge pull request #12151 from jketema/remove-experimental-dataflow 
C++: Remove experimental copy of the use-use IR dataflow library
 2023-02-10 18:08:14 +01:00
Jeroen Ketema
b023c6bb23 C++: Remove experimental copy of the use-use IR dataflow library 2023-02-10 16:20:33 +01:00
Jeroen Ketema
ecdeb9a970 C++: Revert semmle.code.cpp.dataflow to its old state 
While here make sure all queries and tests use IR dataflow when appropriate.
 2023-02-10 14:21:44 +01:00
Jeroen Ketema
1c35109675 C++: Add experimental tag to experimental query 2023-02-06 20:31:26 +01:00
Jeroen Ketema
868f07bc91 Merge branch 'main' into ihsinme-patch-102 2023-02-06 20:16:53 +01:00
ihsinme
065ca3c227 Update DivideByZeroUsingReturnValue.ql 2023-02-06 19:42:46 +03:00
Nicky Mouha
5a4a63f8a9 Create IfStatementAdditionOverflow.ql 2023-01-30 18:52:35 -05:00
Pierre
c3116b3f0f Merge branch 'main' into turbo/experimental/combined 2023-01-11 18:02:55 +01:00
Tony Torralba
3fcc99e5cb C++: Remove omittable exists variables 2023-01-10 13:36:01 +01:00
Geoffrey White
3b31da8a62 C++: Update the experimental query as well. 2023-01-05 12:48:17 +00:00
ihsinme
c790b0fed6 Update DivideByZeroUsingReturnValue.ql 2022-12-18 00:34:14 +03:00
turbo
4ec401a3f6 Tag all security queries in supported languages' experimental directories with an experimental tag 2022-12-14 17:15:50 +01:00