[Coverity CID: 236074] Out-of-bounds access in tests/lib/c_lib/src/main.c

[zephyrbot]

Static code scan issues found in file:

https://github.com/zephyrproject-rtos/zephyr/tree/21d1ad3762302b3e461953df59430c77e0709274/tests/lib/c_lib/src/main.c#L557

Category: Memory - corruptions
Function: test_memcpy
Component: Tests
CID: 236074

Details:

zephyr/tests/lib/c_lib/src/main.c

Line 557 in 21d1ad3

zassert_equal(memcpy(mem_dest_tmp, mem_src_tmp, 10),

551     
552      /* restore the environment */
553      memset(mem_dest_byte, '\0', sizeof(mem_dest));
554      /* verify when dest and src are all in not word aligned */
555      mem_dest_tmp = mem_dest_byte + sizeof(uintptr_t) - 1;
556      mem_src_tmp = mem_src_byte + sizeof(uintptr_t) - 1;
>>>     CID 236074:  Memory - corruptions  (OVERRUN)
>>>     Overrunning buffer pointed to by "mem_dest_tmp" of 12 bytes by passing it to a function which accesses it at byte offset 12 using argument "10U". [Note: The source code implementation of the function has been overridden by a builtin model.]
557      zassert_equal(memcpy(mem_dest_tmp, mem_src_tmp, 10),
558              mem_dest_tmp, "memcpy error");
559      zassert_equal(memcmp(mem_dest_tmp, mem_src_tmp, 10),
560              0, "memcpy failed");
561     
562      /* restore the environment */

Please fix or provide comments in coverity using the link:

https://scan9.coverity.com/reports.htm#v29271/p12996

Note: This issue was created automatically. Priority was set based on classification
of the file affected and the impact field in coverity. Assignees were set using the CODEOWNERS file.