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strlcpy() reads the entire source buffer first. This read may exceed the destination size limit. This is both inefficient and can lead to linear read overflows if a source string is not NUL-terminated [1]. This is not the case here, however, in an effort to remove strlcpy() completely [2], lets replace strlcpy() here with strscpy(). No return values were used, so a direct replacement is safe. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy [2] https://github.com/KSPP/linux/issues/89 Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/bpf/20230530155659.309657-1-azeemshaikh38@gmail.com |
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