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splash_source: Verify FIT magic

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Before reading entire FIT image, add sanity check by testing image
header against FDT_MAGIC. This should help avoid problems in situations
where FIT is not yet available from storage device, for example when
performing initial programming of device.

Cc: Anatolij Gustschin <agust@denx.de>
Acked-by: Tomas Melin <tomas.melin@vaisala.com>
This commit is contained in:
Niko Mauno 2017-08-03 09:53:24 +03:00 committed by Anatolij Gustschin
parent f8ba7f2774
commit a7126edcb3
1 changed files with 5 additions and 0 deletions
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5
common/splash_source.c
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@ -317,6 +317,11 @@ static int splash_load_fit(struct splash_location *location, u32 bmp_load_addr)
return res;
img_header = (struct image_header *)bmp_load_addr;
if (image_get_magic(img_header) != FDT_MAGIC) {
printf("Could not find FDT magic\n");
return -EINVAL;
}
fit_size = fdt_totalsize(img_header);
/* Read in entire FIT */