Re: [PATCH] MIPS: boot: Fix unaligned access with CONFIG_MIPS_RAW_APPENDED_DTB

On Thu, Dec 17, 2020 at 12:41 AM Paul Cercueil paul@crapouillou.net wrote:

The compressed payload is not necesarily 4-byte aligned, at least when compiling with Clang. In that case, the 4-byte value appended to the compressed payload that corresponds to the uncompressed kernel image size must be read using get_unaligned_le().

This fixes Clang-built kernels not booting on MIPS (tested on a Ingenic JZ4770 board).

Fixes: b8f54f2cde78 ("MIPS: ZBOOT: copy appended dtb to the end of the kernel") Cc: stable@vger.kernel.org # v4.7 Signed-off-by: Paul Cercueil paul@crapouillou.net

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arch/mips/boot/compressed/decompress.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Philippe Mathieu-Daudé f4bug@amsat.org