addresssanitizer: heap-buffer-

overflow

AddressSanitizer 是一种用于检测内存错误的工具，其中之一是 "heap-buffer-overflow"。它检测堆上的缓冲区溢出错误，即程序超出了分配给堆缓冲区的内存范围。这可能导致程序崩溃或其他不可预期的行为。使用 AddressSanitizer 可以更容易地发现和修复这类错误。

相关问题

addresssanitizer: heap-buffer-overflow on address

addresssanitizer: heap-buffer-overflow on address的意思是在地址上发生了堆缓冲区溢出。这通常是由于程序试图访问超出分配给它的内存范围的数据而导致的。这可能会导致程序崩溃或产生不可预测的行为。要解决此问题，需要检查代码中的内存分配和访问，并确保它们不会超出分配的范围。

AddressSanitizer: heap-buffer-overflow on address 0x60200000008c at pc 0x00000034d51c bp 0x7ffd7d4a5d80 sp 0x7ffd7d4a5d78 ================================================================= ==20==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200000008c at pc 0x00000034d51c bp 0x7ffd7d4a5d80 sp 0x7ffd7d4a5d78 WRITE of size 4 at 0x60200000008c thread T0 #3 0x7f70e3f18082 (/lib/x86_64-linux-gnu/libc.so.6+0x24082) 0x60200000008c is located 4 bytes to the left of 8-byte region [0x602000000090,0x602000000098) allocated by thread T0 here: #4 0x7f70e3f18082 (/lib/x86_64-linux-gnu/libc.so.6+0x24082) Shadow bytes around the buggy address: 0x0c047fff7fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c047fff7fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c047fff7fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c047fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c047fff8000: fa fa fd fa fa fa fd fa fa fa 00 00 fa fa fd fa =>0x0c047fff8010: fa[fa]00 fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff8020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff8030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff8040: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff8050: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff8060: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb Shadow gap: cc ==20==ABORTING

这是一个内存越界的错误，程序试图在一个已经释放的内存地址上写入数据，导致了程序的崩溃。具体来说，错误信息中显示的是在地址 0x60200000008c 的位置发生了堆缓冲区溢出（heap-buffer-overflow），并且该地址位于一个 8 字节的区域的左边 4 个字节。另外，该内存地址曾经被线程 T0 分配过，但是现在已经被释放了。

这种错误通常是由于数组越界或者使用已经被释放的内存地址引起的。建议您检查代码中与该地址相关的数组或指针，确认其访问是否正确，以及内存的分配和释放是否配对。另外，您可以使用调试器或者内存检测工具（如 Valgrind 或 AddressSanitizer）来帮助您定位错误的位置。