Summary:
Whenever an equality "t = v" (t an arbitrary term, v a variable) is
added (or "v = t"), remember the "t -> v" mapping after canonicalising t
and v. Use this to detect when two variables are equal to the same term:
`t = v` and `t = v'` now yields `v = v'` to be added to the equality
relation of variables. This increases the precision of the arithmetic
engine.
Interestingly, the impact on most code I've tried is:
1. mostly same perfs as before, if a bit slower (could be within noise)
2. slightly more (latent) bugs reported in absolute numbers
I would have expected it to be more expensive and yield fewer bugs (as
fewer false positives), but there could be second-order effects at play
here where we get more coverage. We definitely get more latent issues
due to dereferencing pointers after testing nullness, as can be seen in
the unit tests as well, which may alone explain (2).
There's some complexity when adding term equalities where the term
is linear, as we also need to add it to `linear_eqs` but `term_eqs` and
`linear_eqs` are interested in slightly different normal forms.
Reviewed By: skcho
Differential Revision: D27331336
fbshipit-source-id: 7314e127a
master
Jules Villard4 years agocommitted byFacebook GitHub Bot
codetoanalyze/c/pulse/memory_leak.c, malloc_no_free_bad, 0, MEMORY_LEAK, no_bucket, ERROR, [allocation part of the trace starts here,allocated by call to `malloc` (modelled),allocation part of the trace ends here,memory becomes unreachable here]
codetoanalyze/c/pulse/nullptr.c, FN_bug_after_malloc_result_test_bad, 4, NULLPTR_DEREFERENCE, no_bucket, ERROR, [*** LATENT ***,source of the null value part of the trace starts here,assigned,is the null pointer,null pointer dereference part of the trace starts here,assigned,invalid access occurs here]
codetoanalyze/c/pulse/nullptr.c, malloc_no_check_bad, 2, NULLPTR_DEREFERENCE, no_bucket, ERROR, [source of the null value part of the trace starts here,allocated by call to `malloc` (modelled),is the null pointer,null pointer dereference part of the trace starts here,allocated by call to `malloc` (modelled),assigned,invalid access occurs here]
codetoanalyze/c/pulse/nullptr.c, malloc_then_call_create_null_path_then_deref_unconditionally_latent, 7, NULLPTR_DEREFERENCE, no_bucket, ERROR, [*** LATENT ***,source of the null value part of the trace starts here,allocated by call to `malloc` (modelled),is the null pointer,null pointer dereference part of the trace starts here,parameter `p` of malloc_then_call_create_null_path_then_deref_unconditionally_latent,invalid access occurs here]
codetoanalyze/c/pulse/nullptr.c, nullptr_deref_young_bad, 5, NULLPTR_DEREFERENCE, no_bucket, ERROR, [source of the null value part of the trace starts here,assigned,is the null pointer,null pointer dereference part of the trace starts here,assigned,invalid access occurs here]
codetoanalyze/c/pulse/uninit.c, call_to_use_and_mayinit_bad, 2, PULSE_UNINITIALIZED_VALUE, no_bucket, ERROR, [variable `x` declared here,read to uninitialized value occurs here]
codetoanalyze/c/pulse/uninit.c, dereference_bad, 2, PULSE_UNINITIALIZED_VALUE, no_bucket, ERROR, [variable `p` declared here,read to uninitialized value occurs here]
codetoanalyze/cpp/pulse/basics.cpp, multiple_invalidations_branch_latent, 6, USE_AFTER_DELETE, no_bucket, ERROR, [*** LATENT ***,invalidation part of the trace starts here,parameter `ptr` of multiple_invalidations_branch_latent,was invalidated by `delete`,use-after-lifetime part of the trace starts here,parameter `ptr` of multiple_invalidations_branch_latent,invalid access occurs here]
codetoanalyze/cpp/pulse/basics.cpp, multiple_invalidations_branch_latent, 6, USE_AFTER_DELETE, no_bucket, ERROR, [*** LATENT ***,invalidation part of the trace starts here,parameter `ptr` of multiple_invalidations_branch_latent,was invalidated by `delete`,use-after-lifetime part of the trace starts here,parameter `ptr` of multiple_invalidations_branch_latent,invalid access occurs here]
codetoanalyze/cpp/pulse/basics.cpp, multiple_invalidations_loop_latent, 5, USE_AFTER_DELETE, no_bucket, ERROR, [*** LATENT ***,invalidation part of the trace starts here,parameter `ptr` of multiple_invalidations_loop_latent,was invalidated by `delete`,use-after-lifetime part of the trace starts here,parameter `ptr` of multiple_invalidations_loop_latent,invalid access occurs here]
codetoanalyze/cpp/pulse/basics.cpp, multiple_invalidations_loop_latent, 8, NULLPTR_DEREFERENCE, no_bucket, ERROR, [*** LATENT ***,source of the null value part of the trace starts here,assigned,is the null pointer,null pointer dereference part of the trace starts here,parameter `ptr` of multiple_invalidations_loop_latent,invalid access occurs here]
codetoanalyze/cpp/pulse/basics.cpp, multiple_invalidations_loop_latent, 8, USE_AFTER_DELETE, no_bucket, ERROR, [*** LATENT ***,invalidation part of the trace starts here,parameter `ptr` of multiple_invalidations_loop_latent,was invalidated by `delete`,use-after-lifetime part of the trace starts here,parameter `ptr` of multiple_invalidations_loop_latent,invalid access occurs here]
codetoanalyze/cpp/pulse/closures.cpp, call_lambda_bad, 4, USE_AFTER_DELETE, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `new` (modelled),return from call to `new` (modelled),assigned,was invalidated by `delete`,use-after-lifetime part of the trace starts here,passed as argument to `new` (modelled),return from call to `new` (modelled),assigned,when calling `call_lambda_bad::lambda_closures.cpp:163:12::operator()` here,parameter `s` of call_lambda_bad::lambda_closures.cpp:163:12::operator(),invalid access occurs here]
codetoanalyze/cpp/pulse/closures.cpp, call_lambda_std_fun_bad, 5, USE_AFTER_DELETE, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `new` (modelled),return from call to `new` (modelled),assigned,was invalidated by `delete`,use-after-lifetime part of the trace starts here,passed as argument to `new` (modelled),return from call to `new` (modelled),assigned,when calling `call_lambda_std_fun_bad::lambda_closures.cpp:171:7::operator()` here,parameter `s` of call_lambda_std_fun_bad::lambda_closures.cpp:171:7::operator(),invalid access occurs here]
@ -50,7 +51,7 @@ codetoanalyze/cpp/pulse/interprocedural.cpp, delete_inner_then_write_bad, 2, USE
codetoanalyze/cpp/pulse/interprocedural.cpp, delete_then_read_bad, 2, USE_AFTER_DELETE, no_bucket, ERROR, [invalidation part of the trace starts here,parameter `x` of delete_then_read_bad,was invalidated by `delete`,use-after-lifetime part of the trace starts here,parameter `x` of delete_then_read_bad,when calling `wraps_read` here,parameter `x` of wraps_read,when calling `wraps_read_inner` here,parameter `x` of wraps_read_inner,invalid access occurs here]
codetoanalyze/cpp/pulse/interprocedural.cpp, delete_then_write_bad, 2, USE_AFTER_DELETE, no_bucket, ERROR, [invalidation part of the trace starts here,parameter `x` of delete_then_write_bad,when calling `wraps_delete` here,parameter `x` of wraps_delete,when calling `wraps_delete_inner` here,parameter `x` of wraps_delete_inner,was invalidated by `delete`,use-after-lifetime part of the trace starts here,parameter `x` of delete_then_write_bad,when calling `wraps_read` here,parameter `x` of wraps_read,when calling `wraps_read_inner` here,parameter `x` of wraps_read_inner,invalid access occurs here]
codetoanalyze/cpp/pulse/interprocedural.cpp, feed_invalid_into_access_bad, 2, USE_AFTER_DELETE, no_bucket, ERROR, [invalidation part of the trace starts here,when calling `may_return_invalid_ptr_ok` here,passed as argument to `new` (modelled),return from call to `new` (modelled),assigned,was invalidated by `delete`,use-after-lifetime part of the trace starts here,passed as argument to `may_return_invalid_ptr_ok`,return from call to `may_return_invalid_ptr_ok`,assigned,when calling `call_store` here,parameter `y` of call_store,when calling `store` here,parameter `y` of store,invalid access occurs here]
codetoanalyze/cpp/pulse/interprocedural.cpp, set_x_then_crash_double_latent, 1, NULLPTR_DEREFERENCE, no_bucket, ERROR, [*** LATENT ***,source of the null value part of the trace starts here,assigned,is the null pointer,null pointer dereference part of the trace starts here,when calling `set_first_non_null_ok` here,parameter `y` of set_first_non_null_ok,invalid access occurs here]
codetoanalyze/cpp/pulse/interprocedural.cpp, set_x_then_crash_double_latent, 2, NULLPTR_DEREFERENCE, no_bucket, ERROR, [*** LATENT ***,source of the null value part of the trace starts here,assigned,is the null pointer,null pointer dereference part of the trace starts here,parameter `x` of set_x_then_crash_double_latent,when calling `set_first_non_null_ok` here,parameter `y` of set_first_non_null_ok,invalid access occurs here]
codetoanalyze/cpp/pulse/interprocedural.cpp, set_x_then_crash_double_latent, 4, NULLPTR_DEREFERENCE, no_bucket, ERROR, [*** LATENT ***,source of the null value part of the trace starts here,assigned,is the null pointer,null pointer dereference part of the trace starts here,assigned,invalid access occurs here]
codetoanalyze/cpp/pulse/join.cpp, invalidate_node_alias_bad, 1, USE_AFTER_DELETE, no_bucket, ERROR, [calling context starts here,in call to `invalidate_node_alias_latent`,invalidation part of the trace starts here,parameter `head` of invalidate_node_alias_latent,assigned,assigned,was invalidated by `delete`,use-after-lifetime part of the trace starts here,parameter `head` of invalidate_node_alias_latent,assigned,assigned,invalid access occurs here]
codetoanalyze/cpp/pulse/join.cpp, invalidate_node_alias_latent, 12, USE_AFTER_DELETE, no_bucket, ERROR, [*** LATENT ***,invalidation part of the trace starts here,parameter `head` of invalidate_node_alias_latent,assigned,assigned,was invalidated by `delete`,use-after-lifetime part of the trace starts here,parameter `head` of invalidate_node_alias_latent,assigned,assigned,invalid access occurs here]
codetoanalyze/cpp/pulse/nullptr.cpp, test_after_dereference2_latent, 1, NULLPTR_DEREFERENCE, no_bucket, ERROR, [*** LATENT ***,source of the null value part of the trace starts here,is the null pointer,null pointer dereference part of the trace starts here,parameter `x` of test_after_dereference2_latent,invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, assign2_bad, 4, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,when calling `folly::Optional<int>::operator=` here,passed as argument to `folly::Optional::reset()` (modelled),return from call to `folly::Optional::reset()` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `folly::Optional<int>::operator=`,passed as argument to `folly::Optional::reset()` (modelled),return from call to `folly::Optional::reset()` (modelled),return from call to `folly::Optional<int>::operator=`,invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, assign_bad, 5, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),passed as argument to `folly::Optional<int>::operator=`,parameter `other` of folly::Optional<int>::operator=,passed as argument to `folly::Optional::assign(folly::Optional<Value> arg)` (modelled),return from call to `folly::Optional::assign(folly::Optional<Value> arg)` (modelled),return from call to `folly::Optional<int>::operator=`,invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, cannot_be_empty_FP, 2, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,when calling `getOptionalValue` here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `getOptionalValue`,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),return from call to `getOptionalValue`,invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, get_pointer_no_check_none_check_bad, 3, NULLPTR_DEREFERENCE, no_bucket, ERROR, [source of the null value part of the trace starts here,passed as argument to `folly::Optional::get_pointer()` (modelled),return from call to `folly::Optional::get_pointer()` (modelled),is the null pointer,null pointer dereference part of the trace starts here,passed as argument to `folly::Optional::get_pointer()` (modelled),return from call to `folly::Optional::get_pointer()` (modelled),assigned,invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, get_pointer_no_check_none_check_bad, 3, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `folly::Optional::get_pointer()` (modelled),return from call to `folly::Optional::get_pointer()` (modelled),assigned,invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, inside_try_catch_FP, 3, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,when calling `might_return_none` here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `might_return_none`,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),return from call to `might_return_none`,invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, none_copy_bad, 3, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),passed as argument to `folly::Optional::Optional(folly::Optional<Value> arg)` (modelled),return from call to `folly::Optional::Optional(folly::Optional<Value> arg)` (modelled),invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, none_no_check_bad, 2, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, not_none_check_value_ok_FP, 5, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, operator_arrow_bad, 0, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),when calling `emplace` here,parameter `state` of emplace,passed as argument to `folly::Optional::operator->()` (modelled),return from call to `folly::Optional::operator->()` (modelled),invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, smart_pointer_FP, 2, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,when calling `Node::getShared` here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `Node::getShared`,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),return from call to `Node::getShared`,invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, std_assign2_bad, 4, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `std::optional::operator=(None)` (modelled),return from call to `std::optional::operator=(None)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `std::optional::operator=(None)` (modelled),return from call to `std::optional::operator=(None)` (modelled),invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, std_assign_bad, 5, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),passed as argument to `std::optional::operator=(std::optional<Value> arg)` (modelled),return from call to `std::optional::operator=(std::optional<Value> arg)` (modelled),invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, std_none_copy_bad, 3, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),passed as argument to `std::optional::optional(std::optional<Value> arg)` (modelled),return from call to `std::optional::optional(std::optional<Value> arg)` (modelled),invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, std_none_no_check_bad, 2, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, std_not_none_check_value_ok_FP, 5, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, std_operator_arrow_bad, 0, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),when calling `std_emplace` here,parameter `state` of std_emplace,passed as argument to `std::optional::operator->()` (modelled),return from call to `std::optional::operator->()` (modelled),invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, std_value_or_check_value_ok_FP, 5, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `std::optional::optional(=nullopt)` (modelled),return from call to `std::optional::optional(=nullopt)` (modelled),invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, test_trace_ref, 4, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,when calling `folly::Optional<int>::operator=` here,passed as argument to `folly::Optional::reset()` (modelled),return from call to `folly::Optional::reset()` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `folly::Optional<int>::operator=`,passed as argument to `folly::Optional::reset()` (modelled),return from call to `folly::Optional::reset()` (modelled),return from call to `folly::Optional<int>::operator=`,invalid access occurs here]
codetoanalyze/cpp/pulse/optional.cpp, value_or_check_value_ok_FP, 5, OPTIONAL_EMPTY_ACCESS, no_bucket, ERROR, [invalidation part of the trace starts here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),is optional empty,use-after-lifetime part of the trace starts here,passed as argument to `folly::Optional::Optional(=None)` (modelled),return from call to `folly::Optional::Optional(=None)` (modelled),invalid access occurs here]
codetoanalyze/cpp/pulse/path.cpp, faulty_call_bad, 0, NULLPTR_DEREFERENCE, no_bucket, ERROR, [calling context starts here,in call to `only_bad_on_42_latent`,source of the null value part of the trace starts here,when calling `may_return_null` here,assigned,is the null pointer,null pointer dereference part of the trace starts here,passed as argument to `may_return_null`,return from call to `may_return_null`,assigned,invalid access occurs here]
codetoanalyze/cpp/pulse/path.cpp, only_bad_on_42_latent, 2, NULLPTR_DEREFERENCE, no_bucket, ERROR, [*** LATENT ***,source of the null value part of the trace starts here,when calling `may_return_null` here,assigned,is the null pointer,null pointer dereference part of the trace starts here,passed as argument to `may_return_null`,return from call to `may_return_null`,assigned,invalid access occurs here]
codetoanalyze/cpp/pulse/reference_wrapper.cpp, reference_wrapper_heap_bad, 2, USE_AFTER_DELETE, no_bucket, ERROR, [invalidation part of the trace starts here,when calling `getwrapperHeap` here,passed as argument to `WrapsB::WrapsB`,passed as argument to `new` (modelled),return from call to `new` (modelled),assigned,return from call to `WrapsB::WrapsB`,when calling `WrapsB::~WrapsB` here,parameter `this` of WrapsB::~WrapsB,when calling `WrapsB::__infer_inner_destructor_~WrapsB` here,parameter `this` of WrapsB::__infer_inner_destructor_~WrapsB,was invalidated by `delete`,use-after-lifetime part of the trace starts here,passed as argument to `getwrapperHeap`,passed as argument to `WrapsB::WrapsB`,passed as argument to `new` (modelled),return from call to `new` (modelled),assigned,return from call to `WrapsB::WrapsB`,passed as argument to `ReferenceWrapperHeap::ReferenceWrapperHeap`,parameter `a` of ReferenceWrapperHeap::ReferenceWrapperHeap,passed as argument to `WrapsB::getb`,return from call to `WrapsB::getb`,assigned,return from call to `ReferenceWrapperHeap::ReferenceWrapperHeap`,return from call to `getwrapperHeap`,invalid access occurs here]
@ -133,7 +129,6 @@ codetoanalyze/cpp/pulse/use_after_free.cpp, trigger_assumed_aliasing3_bad, 0, US
codetoanalyze/cpp/pulse/use_after_free.cpp, trigger_assumed_aliasing_bad, 0, USE_AFTER_FREE, no_bucket, ERROR, [calling context starts here,in call to `assumed_aliasing_latent`,invalidation part of the trace starts here,parameter `x` of assumed_aliasing_latent,was invalidated by call to `free()`,use-after-lifetime part of the trace starts here,parameter `y` of assumed_aliasing_latent,invalid access occurs here]
codetoanalyze/cpp/pulse/use_after_free.cpp, use_after_free_simple_bad, 2, USE_AFTER_FREE, no_bucket, ERROR, [invalidation part of the trace starts here,parameter `x` of use_after_free_simple_bad,was invalidated by call to `free()`,use-after-lifetime part of the trace starts here,parameter `x` of use_after_free_simple_bad,invalid access occurs here]
codetoanalyze/cpp/pulse/use_after_scope.cpp, access_out_of_scope_stack_ref_bad, 3, USE_AFTER_LIFETIME, no_bucket, ERROR, [invalidation part of the trace starts here,variable `p` declared here,when calling `invalidate_local_ok` here,variable `t` declared here,is the address of a stack variable `t` whose lifetime has ended,use-after-lifetime part of the trace starts here,variable `p` declared here,passed as argument to `invalidate_local_ok`,variable `t` declared here,assigned,return from call to `invalidate_local_ok`,invalid access occurs here]
codetoanalyze/cpp/pulse/values.cpp, FP_int_over_cap_ok, 13, NULLPTR_DEREFERENCE, no_bucket, ERROR, [source of the null value part of the trace starts here,assigned,is the null pointer,null pointer dereference part of the trace starts here,assigned,invalid access occurs here]
codetoanalyze/cpp/pulse/values.cpp, FP_ints_are_not_rationals_ok, 4, NULLPTR_DEREFERENCE, no_bucket, ERROR, [source of the null value part of the trace starts here,assigned,is the null pointer,null pointer dereference part of the trace starts here,assigned,invalid access occurs here]
codetoanalyze/cpp/pulse/values.cpp, error_under_true_conditionals_bad, 5, USE_AFTER_FREE, no_bucket, ERROR, [invalidation part of the trace starts here,parameter `x` of error_under_true_conditionals_bad,was invalidated by call to `free()`,use-after-lifetime part of the trace starts here,parameter `x` of error_under_true_conditionals_bad,invalid access occurs here]
codetoanalyze/cpp/pulse/values.cpp, free_if_deref_bad, 2, USE_AFTER_FREE, no_bucket, ERROR, [invalidation part of the trace starts here,parameter `x` of free_if_deref_bad,when calling `free_if` here,parameter `x` of free_if,was invalidated by call to `free()`,use-after-lifetime part of the trace starts here,parameter `x` of free_if_deref_bad,invalid access occurs here]
Jules Villard
4 years ago
committed by
Facebook GitHub Bot