[PATCH 1/1] bootm: update image OS image size when decompressing
In bootm_load_os() the OS image is decompressed. In later stages of the boot process we need the decompressed size of the image.
Update images->os.image_len after decompression.
Passing the correct size is necessary if we want to check loaded EFI binararies for file truncation by comparing the loaded size to the header field SizeOfImage.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- common/bootm.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/common/bootm.c b/common/bootm.c index 247b600d9c..b3377490b3 100644 --- a/common/bootm.c +++ b/common/bootm.c @@ -390,6 +390,8 @@ static int bootm_load_os(bootm_headers_t *images, int boot_progress) bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); return err; } + /* We need the decompressed image size in the next steps */ + images->os.image_len = load_end - load;
flush_cache(flush_start, ALIGN(load_end, ARCH_DMA_MINALIGN) - flush_start);
-- 2.28.0
On Sun, 30 Aug 2020 at 03:34, Heinrich Schuchardt xypron.glpk@gmx.de wrote:
In bootm_load_os() the OS image is decompressed. In later stages of the boot process we need the decompressed size of the image.
Update images->os.image_len after decompression.
Passing the correct size is necessary if we want to check loaded EFI binararies for file truncation by comparing the loaded size to the header field SizeOfImage.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de
common/bootm.c | 2 ++ 1 file changed, 2 insertions(+)
Reviewed-by: Simon Glass sjg@chromium.org
On Sun, Aug 30, 2020 at 11:34:12AM +0200, Heinrich Schuchardt wrote:
In bootm_load_os() the OS image is decompressed. In later stages of the boot process we need the decompressed size of the image.
Update images->os.image_len after decompression.
Passing the correct size is necessary if we want to check loaded EFI binararies for file truncation by comparing the loaded size to the header field SizeOfImage.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de Reviewed-by: Simon Glass sjg@chromium.org
Applied to u-boot/master, thanks!
participants (3)
-
Heinrich Schuchardt -
Simon Glass -
Tom Rini