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bpo-32903: Fix a memory leak in os.chdir() on Windows (GH-5801)

This commit is contained in:
Alexey Izbyshev 2018-03-01 12:13:56 +03:00 committed by Xiang Zhang
parent 982c723384
commit 3e197c7a67
2 changed files with 9 additions and 7 deletions
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2
Misc/NEWS.d/next/Windows/2018-02-28-11-03-24.bpo-32903.1SXY4t.rst Normal file
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@ -0,0 +1,2 @@
Fix a memory leak in os.chdir() on Windows if the current directory is set
to a UNC path.

14
Modules/posixmodule.c
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@ -1529,15 +1529,15 @@ win32_wchdir(LPCWSTR path)
return FALSE;
}
}
if (wcsncmp(new_path, L"\\\\", 2) == 0 ||
wcsncmp(new_path, L"//", 2) == 0)
/* UNC path, nothing to do. */
return TRUE;
env[1] = new_path[0];
result = SetEnvironmentVariableW(env, new_path);
int is_unc_like_path = (wcsncmp(new_path, L"\\\\", 2) == 0 ||
wcsncmp(new_path, L"//", 2) == 0);
if (!is_unc_like_path) {
env[1] = new_path[0];
result = SetEnvironmentVariableW(env, new_path);
}
if (new_path != path_buf)
PyMem_RawFree(new_path);
return result;
return result ? TRUE : FALSE;
}
#endif