objtool: Fix memory leak in create_static_call_sections()

CVE-2023-53423

What is CVE-2023-53423?

In the Linux kernel, the following vulnerability has been resolved:

objtool: Fix memory leak in create_static_call_sections()

strdup() allocates memory for key_name. We need to release the memory in the following error paths. Add free() to avoid memory leak.

References