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load_uboot_image: don't assume a full header read 

Don't allow load_uboot_image() to proceed when less bytes than
header-size was read.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 20170524091315.20284-1-drjones@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Andrew Jones 2017-06-02 11:51:46 +01:00 committed by Peter Maydell
parent 993063fbb5
commit a18e93125d
1 changed files with 2 additions and 1 deletions
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3
hw/core/loader.c
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@ -611,8 +611,9 @@ static int load_uboot_image(const char *filename, hwaddr *ep, hwaddr *loadaddr,
return -1;
size = read(fd, hdr, sizeof(uboot_image_header_t));
if (size < 0)
if (size < sizeof(uboot_image_header_t)) {
goto out;
}
bswap_uboot_header(hdr);