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mm/memfd: replace deprecated strcpy() with memcpy() in alloc_name()
strcpy() is deprecated; use memcpy() instead. Not copying the NUL terminator is safe because strncpy_from_user() would overwrite it anyway by appending uname to the destination buffer at index MFD_NAME_PREFIX_LEN. No functional changes intended. Link: https://github.com/KSPP/linux/issues/88 Link: https://lkml.kernel.org/r/20250712174516.64243-2-thorsten.blum@linux.dev Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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@ -411,7 +411,7 @@ static char *alloc_name(const char __user *uname)
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if (!name)
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if (!name)
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return ERR_PTR(-ENOMEM);
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return ERR_PTR(-ENOMEM);
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strcpy(name, MFD_NAME_PREFIX);
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memcpy(name, MFD_NAME_PREFIX, MFD_NAME_PREFIX_LEN);
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/* returned length does not include terminating zero */
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/* returned length does not include terminating zero */
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len = strncpy_from_user(&name[MFD_NAME_PREFIX_LEN], uname, MFD_NAME_MAX_LEN + 1);
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len = strncpy_from_user(&name[MFD_NAME_PREFIX_LEN], uname, MFD_NAME_MAX_LEN + 1);
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if (len < 0) {
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if (len < 0) {
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