Justin Stitt 5248f40973 binfmt: replace deprecated strncpy
strncpy() is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.

There is a _nearly_ identical implementation of fill_psinfo present in
binfmt_elf.c -- except that one uses get_task_comm over strncpy(). Let's
mirror that in binfmt_elf_fdpic.c

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://github.com/KSPP/linux/issues/90
Cc:  <linux-hardening@vger.kernel.org>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20240321-strncpy-fs-binfmt_elf_fdpic-c-v2-1-0b6daec6cc56@google.com
Signed-off-by: Kees Cook <keescook@chromium.org>
2024-03-21 20:20:52 -07:00
..
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