Justin Stitt e0bbf92682 um,ethertap: Replace deprecated strncpy() with strscpy() ... `strncpy` is deprecated for use on NUL-terminated destination strings [1]. `gate_buf` should always be NUL-terminated and does not require NUL-padding. It is used as a string arg inside an argv array given to `run_helper()`. Due to this, let's use `strscpy` as it guarantees NUL-terminated on the destination buffer preventing potential buffer overreads [2]. This exact invocation was changed from `strcpy` to `strncpy` in commit 7879b1d94b ("um,ethertap: use strncpy") back in 2015. Let's continue hardening our `str*cpy` apis and use the newer and safer `strscpy`! Link: www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings[1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90 Cc: linux-hardening@vger.kernel.org Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20230911-strncpy-arch-um-os-linux-drivers-ethertap_user-c-v1-1-d9e53f52ab32@google.com Signed-off-by: Kees Cook <keescook@chromium.org>		2023-09-29 11:37:50 -07:00
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alpha	Kbuild updates for v6.6	2023-09-05 11:01:47 -07:00
arc	ARC updates for v6.6	2023-09-04 15:38:24 -07:00
arm	hardening: Provide Kconfig fragments for basic options	2023-09-22 09:50:55 -07:00
arm64	hardening: Provide Kconfig fragments for basic options	2023-09-22 09:50:55 -07:00
csky
hexagon
ia64	Kbuild updates for v6.6	2023-09-05 11:01:47 -07:00
loongarch	LoongArch changes for v6.6	2023-09-08 12:16:52 -07:00
m68k	ata changes for 6.6	2023-09-05 12:37:28 -07:00
microblaze	Microblaze patches for 6.6-rc1	2023-09-05 10:15:22 -07:00
mips	ARM:	2023-09-07 13:52:20 -07:00
nios2
openrisc	OpenRISC updates for 6.6	2023-09-05 10:09:31 -07:00
parisc	parisc architecture fixes and enhancements for kernel v6.6-rc2:	2023-09-13 11:35:53 -07:00
powerpc	hardening: Provide Kconfig fragments for basic options	2023-09-22 09:50:55 -07:00
riscv	riscv: errata: fix T-Head dcache.cva encoding	2023-09-12 13:58:40 -07:00
s390	Including fixes from netfilter and bpf.	2023-09-07 18:33:07 -07:00
sh	sh updates for v6.6	2023-09-09 14:46:57 -07:00
sparc	ata changes for 6.6	2023-09-05 12:37:28 -07:00
um	um,ethertap: Replace deprecated strncpy() with strscpy()	2023-09-29 11:37:50 -07:00
x86	hardening: Provide Kconfig fragments for basic options	2023-09-22 09:50:55 -07:00
xtensa	Xtensa updates for v6.6	2023-09-07 10:30:17 -07:00
.gitignore
Kconfig