linux/usr
Benjamin Gray 5efb685bb3 initramfs: Check negative timestamp to prevent broken cpio archive
Similar to commit 4c9d410f32 ("initramfs: Check timestamp to prevent
broken cpio archive"), except asserts that the timestamp is
non-negative. This can happen when the KBUILD_BUILD_TIMESTAMP is a value
before UNIX epoch, which may be set when making reproducible builds that
don't want to look like they use a valid date.

While support for dates before 1970 might not be supported, this is more
about preventing undetected CPIO corruption. The printf's use a minimum
length format specifier, and will happily make the field longer than 8
characters if they need to.

Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com>
Tested-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-04-16 17:37:01 +09:00
..
dummy-include
include
.gitignore
default_cpio_list
gen_init_cpio.c initramfs: Check negative timestamp to prevent broken cpio archive 2023-04-16 17:37:01 +09:00
gen_initramfs.sh
initramfs_data.S
Kconfig
Makefile