Signed-off-by: Pali Rohár pali@kernel.org --- cmd/mvebu/bubt.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/cmd/mvebu/bubt.c b/cmd/mvebu/bubt.c index 1b08ca9298c2..74ea037dda98 100644 --- a/cmd/mvebu/bubt.c +++ b/cmd/mvebu/bubt.c @@ -725,9 +725,8 @@ static int check_image_header(void) { struct mvebu_image_header *hdr = (struct mvebu_image_header *)get_load_addr(); - u32 header_len = hdr->prolog_size; u32 checksum; - u32 checksum_ref = hdr->prolog_checksum; + u32 checksum_ref;
/* * For now compare checksum, and magic. Later we can @@ -739,8 +738,17 @@ static int check_image_header(void) return -ENOEXEC; }
- checksum = do_checksum32((u32 *)hdr, header_len); + checksum_ref = hdr->prolog_checksum; + checksum = do_checksum32((u32 *)hdr, hdr->prolog_size); checksum -= hdr->prolog_checksum; + if (checksum != checksum_ref) { + printf("Error: Bad Prolog checksum. 0x%x != 0x%x\n", + checksum, checksum_ref); + return -ENOEXEC; + } + + checksum_ref = hdr->boot_image_checksum; + checksum = do_checksum32((u32 *)((u8 *)hdr + hdr->prolog_size), hdr->boot_image_size); if (checksum != checksum_ref) { printf("Error: Bad Image checksum. 0x%x != 0x%x\n", checksum, checksum_ref);