linux-stable/init
Yuntao Wang 81cf85ae4f init/main.c: Fix potential static_command_line memory overflow
commit 46dad3c1e5 upstream.

We allocate memory of size 'xlen + strlen(boot_command_line) + 1' for
static_command_line, but the strings copied into static_command_line are
extra_command_line and command_line, rather than extra_command_line and
boot_command_line.

When strlen(command_line) > strlen(boot_command_line), static_command_line
will overflow.

This patch just recovers strlen(command_line) which was miss-consolidated
with strlen(boot_command_line) in the commit f5c7310ac7 ("init/main: add
checks for the return value of memblock_alloc*()")

Link: https://lore.kernel.org/all/20240412081733.35925-2-ytcoode@gmail.com/

Fixes: f5c7310ac7 ("init/main: add checks for the return value of memblock_alloc*()")
Cc: stable@vger.kernel.org
Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-27 17:11:41 +02:00
..
.gitignore
Kconfig init/Kconfig: lower GCC version check for -Warray-bounds 2024-04-03 15:28:41 +02:00
Makefile x86/retpoline: Make sure there are no unconverted return thunks due to KCSAN 2023-11-28 17:19:36 +00:00
build-version
calibrate.c
do_mounts.c rootfs: Fix support for rootfstype= when root= is given 2024-01-25 15:35:46 -08:00
do_mounts.h
do_mounts_initrd.c
do_mounts_rd.c
init_task.c
initramfs.c init: open /initrd.image with O_LARGEFILE 2024-04-03 15:28:53 +02:00
main.c init/main.c: Fix potential static_command_line memory overflow 2024-04-27 17:11:41 +02:00
noinitramfs.c
version-timestamp.c
version.c