Commit Graph

2474 Commits

Author SHA1 Message Date
Jonas Jensen
4ddac749af C++: Add change note
Also fix discrepancies between `SignedOverflowCheck.ql` and its change
note.
2019-11-13 14:43:30 +01:00
Jonas Jensen
2d72a9cdec C++: Rename query
This new name is similar to its sister query "Signed overflow check".
2019-11-13 14:40:27 +01:00
Jonas Jensen
1b849dbf0e C++: More principled macro exclusion
We no longer exclude macros based on their name, which means we can now
find results inside arguments to the `likely` macro in Linux (except
that Linux is compiled with `-fno-strict-overflow`).
2019-11-13 14:22:38 +01:00
Jonas Jensen
db33053422 C++: Add test for macro exclusions 2019-11-13 14:21:29 +01:00
Jonas Jensen
8d79634f8c C++: Factor out isFromMacroDefinition predicate
This trick for excluding elements from macro bodies but not macro
arguments looks promising and should probably be used much more. With
this commit, it's now easy to use from any query.

Performance is still good because the new predicate gets appropriately
magiced.
2019-11-13 14:07:33 +01:00
Jonas Jensen
d2009c53dc C++: Support GCC flags making ptr overflow defined 2019-11-13 14:07:33 +01:00
Jonas Jensen
463bf964a9 C++: Test showing FP with -fno-strict-overflow 2019-11-13 14:07:33 +01:00
Jonas Jensen
8ed991759c C++: Rename PointerWrapAround to PointerOverflow
Overflow was the terminology I found for this in the C standard (C11
6.5.6-8).
2019-11-13 14:06:58 +01:00
Jonas Jensen
bd08c64933 C++: Apply my own review comments from #2218 2019-11-13 14:05:23 +01:00
Jonas Jensen
18cc539c8d Merge branch 'master' into pointer-wraparound-query 2019-11-12 10:22:46 +01:00
Jonas Jensen
c36b73f09c Merge pull request #2232 from geoffw0/formatsymbols
CPP: Fully support n$ in format strings
2019-11-12 09:43:20 +01:00
Dave Bartolomeo
303bab61b5 Merge pull request #2289 from jbj/ConvertToNonVirtualBaseInstruction
C++ IR: clearly distinguish between virtual and non-virtual base conversions
2019-11-11 13:37:07 -07:00
Jonas Jensen
ec79bfacf8 Merge pull request #2249 from geoffw0/tlsperf
CPP: TlsSettingsMisconfiguration.ql performance and cleanup
2019-11-11 16:47:53 +01:00
Geoffrey White
a4250be72f CPP: Un-deprecate getNumArgNeeded(n). Turns out I missed a place where it's used. 2019-11-11 15:28:09 +00:00
Geoffrey White
ed87f25886 CPP: Performance improvement. 2019-11-11 15:28:09 +00:00
Geoffrey White
a9fbe221ba CPP: Try to make the predicate names and qldoc a bit more consistent. 2019-11-11 15:27:23 +00:00
Geoffrey White
dff21e02db CPP: Fully support positional arguments. 2019-11-11 15:27:23 +00:00
Geoffrey White
2430bf4c83 CPP: Deprecate helper version of getNumArgNeeded. 2019-11-11 15:27:23 +00:00
Geoffrey White
27478640f2 CPP: Bring the logic for argument indices together in getFormatArgumentIndexFor. 2019-11-11 15:27:22 +00:00
Geoffrey White
760884051c CPP: Add test cases using various combinations of width and precision specifiers, positional arguments, and flags. 2019-11-11 15:27:22 +00:00
Jonas Jensen
f2a9876c2a Merge pull request #2003 from geoffw0/formatarg
CPP: WrongTypeFormatArguments.ql Fix
2019-11-11 16:07:37 +01:00
Jonas Jensen
d9bdb2cd4e Merge pull request #2274 from geoffw0/oddsends
CPP: Clean up new queries and libraries
2019-11-11 16:05:20 +01:00
Jonas Jensen
eb55d964a8 C++: Fix semantic merge conflict
This test output must have been wrong because I produced it with an
extractor that didn't have #2153 applied.
2019-11-11 15:39:53 +01:00
Geoffrey White
e77fefaf9e Merge pull request #2295 from jbj/self-comparison-templates
C++: Suppress PointlessSelfComparison.ql on templates
2019-11-11 14:12:55 +00:00
Jonas Jensen
97cc0ebc8c C++: Suppress PointlessSelfComparison on templates
It's a bit crude to suppress all results in instantiations, but we're
already using this kind of suppression in `PointlessComparison.ql`
(without the `Self`) because there is no convenient alternative. It
means we lose some good results but also suppress a new false positive
in Boost that surfaced after we added support for non-type template
parameters.
2019-11-11 14:00:00 +01:00
Jonas Jensen
281d512178 C++: Add tests for self-comparison template FP 2019-11-11 13:52:22 +01:00
Felicity Chapman
c4f958d396 Merge pull request #2263 from sauyon/master
Update links to OWASP cheat sheet
2019-11-11 08:51:52 +00:00
Jonas Jensen
751263db91 C++: Use ConvertToBaseInstruction in IR data flow
This should make virtual dispatch work also for virtual bases.
2019-11-10 11:17:35 +01:00
Jonas Jensen
7758b43e34 C++: Add ConvertToBase{Opcode,Instruction} classes
These should make it easy to match base-class conversions when it's not
important whether the base class is virtual.
2019-11-10 11:09:54 +01:00
Jonas Jensen
279fc16b60 C++: ConvertToBase -> ConvertToNonVirtualBase
This rename was done with

    perl -p -i -e's/ConvertToBase/ConvertToNonVirtualBase/g' **/*.ql* **/*.expected

followed by re-running the affected tests.
2019-11-10 10:35:53 +01:00
Jonas Jensen
f3e691b5ec Merge pull request #2075 from zlaski-semmle/zlaski/cpp434
[CPP-434] Detect signed overflow checks
2019-11-09 09:57:23 +01:00
Ziemowit Laski
7a4c4b62f6 [zlaski/pointer-overflow-check] Rename PointerOverflowCheck -> PointerWrapAround. 2019-11-08 14:54:20 -08:00
Ziemowit Laski
f2105867a8 [zlaski/pointer-overflow-check] Enhance qhelp and test case. 2019-11-08 14:36:33 -08:00
Dave Bartolomeo
c365b2f2f0 Merge from master
Resolve conflicts in test output
2019-11-08 10:42:29 -07:00
Geoffrey White
58b6fc6bbf CPP: Autoformat. 2019-11-08 16:06:23 +00:00
Geoffrey White
983a970c36 CPP: Autoformat. 2019-11-08 15:59:04 +00:00
Geoffrey White
b4fb98dc7c CPP: Fix comments. 2019-11-08 15:10:13 +00:00
Geoffrey White
821d5061a7 CPP: Correct the tests. 2019-11-08 15:10:13 +00:00
Geoffrey White
73b55f019d CPP: Autoformat. 2019-11-08 15:10:13 +00:00
Geoffrey White
cd3bccf73a CPP: Fix FPs. 2019-11-08 15:09:46 +00:00
Geoffrey White
1cf4449314 CPP: Test for NonConstantFormat with multiple definitons. 2019-11-08 15:09:45 +00:00
Geoffrey White
144cda7dd9 CPP: Test for WrongTypeFormatArguments with multiple definitions. 2019-11-08 15:09:45 +00:00
Dave Bartolomeo
17f76c2516 C++: Fix merge conflicts 2019-11-07 22:02:15 -07:00
Ziemowit Laski
4ea8569081 [CPP-434] Squelch query alerts if ALL files were compiled
with `-fwrapv` or `-fno-strict-overflow`
2019-11-07 16:40:03 -08:00
Robert Marsh
f483ec152b Merge branch 'master' of github.com:Semmle/ql into rdmarsh/cpp/uninit-string-initializers 2019-11-07 14:36:58 -08:00
Robert Marsh
ee185ea92e Merge pull request #2273 from geoffw0/ntohl
CPP: Add tests of NtohlArrayNoBoundOpenSource.ql.
2019-11-07 14:06:32 -08:00
Robert Marsh
ae1377447e C++: only generate uninits when needed 2019-11-07 13:55:49 -08:00
Dave Bartolomeo
6c1d219c86 Merge from master 2019-11-07 14:50:04 -07:00
Robert Marsh
c5396d9980 Merge pull request #2262 from jbj/ir-virtual-dispatch-local
C++: Rudimentary support for IR data flow virtual dispatch
2019-11-07 13:09:24 -08:00
Dave Bartolomeo
df1d64fbeb Merge pull request #2244 from jbj/IRType-cached
C++: Minimal caching of the IR type system
2019-11-07 12:44:16 -07:00