Summary:
Adding models that allow us to warn on unguarded accesses to subclasses of `Map`, but not on accesses of threadsafe containers like `ConcurrentMap`.
Lots more containers to model later, but stopping at `Map`s for now to make sure the approach looks ok.
Reviewed By: jvillard
Differential Revision: D4385306
fbshipit-source-id: d791eee
Summary: Need to upgrade in order to specify some taint properties on a more recent `WebView` API.
Reviewed By: cristianoc
Differential Revision: D4382590
fbshipit-source-id: 0925742
Summary: These methods should only be called from other methods that also run on the UI thread, and they should not be starting new threads.
Reviewed By: peterogithub
Differential Revision: D4383133
fbshipit-source-id: 6cb2e40
Summary: Use the lazy dynamic dispatch by default in prod for the Java analysis
Reviewed By: sblackshear
Differential Revision: D4356872
fbshipit-source-id: 491e92e
Summary:
Without this it's not always obvious which test fails. It also makes it easier
to mass-patch test failures from the CI jobs to replace expected outputs with
actual outputs (eg, when debugging osx frontend tests from linux).
Reviewed By: jberdine
Differential Revision: D4352205
fbshipit-source-id: 8887d7b
Summary:
We currently can only model the return values of functions as sources.
In order to model inputs of endpoints as sources, we need the capability to treat the formals of certain functions as sources too.
This diff adds that capability by adding a function for getting the tainted sources to the source module, then using that info in the analysis.
Reviewed By: jeremydubreil
Differential Revision: D4314738
fbshipit-source-id: dd7d423
Summary:
Previously, summaries worked by flattening the access tree representing the post of the procedure into (in essence) a list of functions from caller input traces to callee output traces.
This is inefficient in many ways, and is also much more complex than just using the original access tree as the summary.
One big inefficiency of the old way is this: calling `Trace.append` is slow, and we want to do it as few times as possible.
Under the old summary system, we would do it at most once for each "function" in the summary list.
Now, we'll do it at most once for each node in the access tree summary.
This will be a smaller number of calls, since each node can summarize many input/output relationships.
Reviewed By: jeremydubreil
Differential Revision: D4271579
fbshipit-source-id: 34e407a
Summary: Don't warn on NotThreadSafe class, particularly when super is ThreadSafe
Reviewed By: sblackshear
Differential Revision: D4334417
fbshipit-source-id: 0df3b9d
Summary:
SuppressWarnings annotations are hardly used and add considerable
complexity due to requiring recompilation with an annotation processor.
Reviewed By: jvillard
Differential Revision: D4312193
fbshipit-source-id: c4fc07e
Summary:
If these collections don't encapsulate their state properly, there are bigger problems than thread safety issues :).
Plus, these warnings are less-than-actionable for non-Guava maintainers.
Reviewed By: peterogithub
Differential Revision: D4324277
fbshipit-source-id: cacfbf0
Summary:
Maintain an "ownership" set of access paths that hold locally allocated memory that has not escaped.
This memory is owned by the current procedure, so modifying it outside of synchronization is safe.
If an owned access path does escape to another procedure, we remove it from the ownership set.
Reviewed By: peterogithub
Differential Revision: D4320034
fbshipit-source-id: 64f9169
Summary: Rename the intermediate .exp.test files to .exp.test.noreplace so that they don't match the regexp used by `make test-replace`. Otherwise they can accidentally become .exp files that will show up in `git status`.
Reviewed By: cristianoc
Differential Revision: D4319436
fbshipit-source-id: df2ef21
Summary:
Before the diff, the code was considering as Nullable any annotation ending with `...Nullable`, including `SuppressParameterNotNullable`.
Closes#533
Reviewed By: jberdine
Differential Revision: D4317356
fbshipit-source-id: 6091c0f
Summary: Adding Buck `DEFS` macros for generating Infer genrules. The generated genrules can be used to run the analysis on any existing `java_library` targets.
Reviewed By: sblackshear
Differential Revision: D4291234
fbshipit-source-id: 6430e2e
Summary:
The Java frontend translates exceptions by assigning them to the return value.
This leads to weird behavior when the return type of the function is void.
Already handled one case of this in Quandary (ignoring assignments of exceptions to return value), but was missing the case where null is assigned to the return value.
The frontend does this to "clear" the value of previously assigned exceptions.
Reviewed By: jeremydubreil
Differential Revision: D4294060
fbshipit-source-id: 6bef5ef
Summary:
Although the Builder pattern is not actually thread-safe, Builder's are not expected to be shared between threads.
Handle this by ignoring all unprotected accesses in classes the end with "Builder".
We might be able to soften this heuristic in the future by ensuring rather than assuming that Builder are not shared between methods (or, ideally, between threads).
Reviewed By: peterogithub
Differential Revision: D4280761
fbshipit-source-id: a4e6738
Summary: This should no work even when Infer is not setup in the PATH
Reviewed By: jvillard
Differential Revision: D4262356
fbshipit-source-id: e3fa779
Summary: `ReentrantReadWriteLock.ReadLock` and `ReentrantReadWriteLock.WriteLock` are commonly used lock types that were not previously modeled.
Reviewed By: peterogithub
Differential Revision: D4262032
fbshipit-source-id: 4ff81a7
Summary:
`o.<init>` cannot be called in parallel with other methods of `o` from outside, so it's less likely to have thread safety violations in `o.<init>`.
This diff suppresses reporting of thread safety violations for fields touched (transitively) by a constructor.
We can do better than this in the future (t14842325).
Reviewed By: peterogithub
Differential Revision: D4259719
fbshipit-source-id: 20db71f
Summary: Originially, there was a missing package declaration meaning that the generated class was ending in a different place. I also added a test for equality of Integer to complement the test of no equality, which could be always true.
Reviewed By: sblackshear
Differential Revision: D4263676
fbshipit-source-id: 86ab0d3
Summary:
We only ought to report a source-sink flow at the call site where the sink is introduced.
Otherwise, we will report silly false positives.
Reviewed By: jeremydubreil
Differential Revision: D4234766
fbshipit-source-id: 118051f
Summary: This should make it easier to understand complex error reports.
Reviewed By: peterogithub
Differential Revision: D4254341
fbshipit-source-id: fb32d73
Summary: We'll eventually want fancy interprocedural traces. This diff adds the required boilerplate for this and adds the line number of each access to the error message. Real traces will come in a follow-up
Reviewed By: peterogithub
Differential Revision: D4251985
fbshipit-source-id: c9d9823
Summary: Adding this so we can test interprocedural trace-based reporting in a subsequent diff.
Reviewed By: peterogithub
Differential Revision: D4243046
fbshipit-source-id: 7d07f20
Summary: We're at risk for some silly false positives without these models.
Reviewed By: peterogithub
Differential Revision: D4244795
fbshipit-source-id: b0367e6
Summary: Add some basic command line API to run Infer using Buck genrules. Remains to fix issues with absolute vs relative paths and to see how to create these genrules on the fly for a given java or android library.
Reviewed By: sblackshear
Differential Revision: D4245622
fbshipit-source-id: 1cda4ee
Summary:
Dealing with symbolic links in project root is tricky. To avoid it, always normalize all paths to sources with `realpath`.
Changes to tests are expected - infer started to resolve symbolic links which screws up with our testing mechanism.
Reviewed By: jberdine
Differential Revision: D4237587
fbshipit-source-id: fe1cb01
Summary:
Before, we were using a set domain of strings to model a boolean domain.
An explicit boolean domain makes it a bit clear what's going on.
There are two things to note here:
(1) This actually changed the semantics from the old set domain. The set domain wouldn't warn if the lock is held on only one side of a branch, which isn't what we want.
(2) We can't actually test this because the modeling for `Lock.lock()` etc doesn't work :(.
The reason is that the models (which do things like adding attributes for `Lock.lock`) are analyzed for Infer, but not for the checkers.
We'll have to add separate models for thread safety.
Reviewed By: peterogithub
Differential Revision: D4242487
fbshipit-source-id: 9fc599d
Summary:
In Java, we handle unknown code by propagating behavior from the parameters of the unknown function call to the return value (or constructed object, in the case of a constructor). But we do this in a somewhat silly way--generating a new summary with these semantics at each unknown call site. Instead, this diff introduces these two options as predefined behaviors and adds specialized code for them.
As a side effect of this approach, unknown functions are no longer counted as passthroughs. This is ok; the original behavior was less of a reasoned decision and more of an unintended consequence of the way we decided to handle unknown code.
This new approach ought to be more efficient than the old one, and as a virtuous side effect it will be easier to specify how to handle unknown code in other languages like C++.
Reviewed By: jeremydubreil
Differential Revision: D4205624
fbshipit-source-id: bf97445
Summary: Run all java tests with project-root at `infer/tests`. Do it to keep things consistent between clang and java tests
Reviewed By: sblackshear
Differential Revision: D4233236
fbshipit-source-id: c3f24fd
Summary:
Let's introduce some concepts. A "known unknown" function is one for which no Java code exists (e.g., `native`, `abstract`, and `interface methods`). An "unknown unknown" function is one for which Java code may or may not exist, but we don't have the code or we choose not to analyze it (e.g., non-modeled methods from the core Java or Android libraries).
Previously, Quandary handled both known unknowns and unknown unknowns by propagating taint from the parameters of the unknown function to its return value. It turns out that it is really expensive to do this for known unknown functions. D4142697 was the diff that starting handling known unknown functions in this way, and bisecting shows that it was the start of the recent performance problems for Quandary.
This diff essentially reverts D4142697 by handling known unknowns as skips instead. Pragmatically, doing the propagation trick for Java/Android library functions (e.g., `String` functions!) matters much more, so i'm not too worried about the missed behaviors from this. Ideally, we will go back to the old handling once performance has improved (have lots of ideas there). But I need this to unblock me in the meantime.
Reviewed By: jeremydubreil
Differential Revision: D4205507
fbshipit-source-id: 79cb9c8
Sam Blackshear
Peter O'Hearn
Josh Berdine
Jeremy Dubreil
Jules Villard
Cristiano Calcagno
Andrzej Kotulski