dutor / asan-demo Goto Github PK

 #include <new>
 int main () {
     char * p1 = new char [sizeof (int)];
     int * p2 = new (std::addressof(p1)) int;
     delete p2;
 }

== 4758 == ERROR: AddressSanitizer: attempting free on address which was not malloc ()-ed: 0x7f415c7f1660 in thread T0
    # 0 0x7f4160485105 in operator delete (void *, unsigned long) (/usr/lib64/libasan.so.5+0x111105)
    # 1 0x2138336 in nebula :: storage :: AddVerticesTest_SimpleTest_Test :: TestBody () /home/pandasheep.yue/nebula-2.0/nebula-storage/src/storage/test/AddVerticesTest.cpp:50
    # 2 0x3f85994 in void testing :: internal :: HandleSehExceptionsInMethodIfSupported <testing :: Test, void> (testing :: Test *, void (testing :: Test :: *) (), char const *) (/ home / pandasheep. yue / nebula-2.0 / nebula-storage / build / src / storage / test / _build / add_vertices_test + 0x3f85994)
    # 3 0x3f807b1 in void testing :: internal :: HandleExceptionsInMethodIfSupported <testing :: Test, void> (testing :: Test *, void (testing :: Test :: *) (), char const *) (/ home / pandasheep. yue / nebula-2.0 / nebula-storage / build / src / storage / test / _build / add_vertices_test + 0x3f807b1)
    # 4 0x3f66303 in testing :: Test :: Run () (/home/pandasheep.yue/nebula-2.0/nebula-storage/build/src/storage/test/_build/add_vertices_test+0x3f66303)
    # 5 0x3f66b7f in testing :: TestInfo :: Run () (/home/pandasheep.yue/nebula-2.0/nebula-storage/build/src/storage/test/_build/add_vertices_test+0x3f66b7f)
    # 6 0x3f671d0 in testing :: TestCase :: Run () (/home/pandasheep.yue/nebula-2.0/nebula-storage/build/src/storage/test/_build/add_vertices_test+0x3f671d0)
    # 7 0x3f6dd01 in testing :: internal :: UnitTestImpl :: RunAllTests () (/home/pandasheep.yue/nebula-2.0/nebula-storage/build/src/storage/test/_build/add_vertices_test+0x3f6dd01)
    # 8 0x3f869ab in bool testing :: internal :: HandleSehExceptionsInMethodIfSupported <testing :: internal :: UnitTestImpl, bool> (testing :: internal :: UnitTestImpl *, bool (testing :: internal :: UnitTestImpl :: *) (), char const *) (/home/pandasheep.yue/nebula-2.0/nebula-storage/build/src/storage/test/_build/add_vertices_test+0x3f869ab)
    # 9 0x3f814bf in bool testing :: internal :: HandleExceptionsInMethodIfSupported <testing :: internal :: UnitTestImpl, bool> (testing :: internal :: UnitTestImpl *, bool (testing :: internal :: UnitTestImpl :: *) (), char const *) (/home/pandasheep.yue/nebula-2.0/nebula-storage/build/src/storage/test/_build/add_vertices_test+0x3f814bf)
    # 10 0x3f6ca07 in testing :: UnitTest :: Run () (/home/pandasheep.yue/nebula-2.0/nebula-storage/build/src/storage/test/_build/add_vertices_test+0x3f6ca07)
    # 11 0x2139a85 in RUN_ALL_TESTS () (/home/pandasheep.yue/nebula-2.0/nebula-storage/build/src/storage/test/_build/add_vertices_test+0x2139a85)
    # 12 0x2138446 in main /home/pandasheep.yue/nebula-2.0/nebula-storage/src/storage/test/AddVerticesTest.cpp:117
    # 13 0x7f416002ef42 in __libc_start_main (/usr/lib64/libc.so.6+0x23f42)
    # 14 0x212bd3d in _start (/home/pandasheep.yue/nebula-2.0/nebula-storage/build/src/storage/test/_build/add_vertices_test+0x212bd3d)

Address 0x7f415c7f1660 is located in stack of thread T0 at offset 32 ​​in frame
    # 0 0x213826f in nebula :: storage :: AddVerticesTest_SimpleTest_Test :: TestBody () /home/pandasheep.yue/nebula-2.0/nebula-storage/src/storage/test/AddVerticesTest.cpp:24

  This frame has 1 object (s):
    (32, 40) 'p1' (line 47) <== Memory access at offset 32 ​​is inside this variable
HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork
      (longjmp and C ++ exceptions * are * supported)
SUMMARY: AddressSanitizer: bad-free (/usr/lib64/libasan.so.5+0x111105) in operator delete (void *, unsigned long)