app: aboot: add check on sparse header size
Return if the file_hdr_sz field of sparse
header does not matches with the size of
the sparse header structure
Change-Id: Ia54a3e32ae34f69c351253dac133a664603addee
diff --git a/app/aboot/aboot.c b/app/aboot/aboot.c
index 5ff06ca..395196f 100755
--- a/app/aboot/aboot.c
+++ b/app/aboot/aboot.c
@@ -1750,13 +1750,11 @@
return;
}
- data += sparse_header->file_hdr_sz;
- if(sparse_header->file_hdr_sz > sizeof(sparse_header_t))
+ data += sizeof(sparse_header_t);
+ if(sparse_header->file_hdr_sz != sizeof(sparse_header_t))
{
- /* Skip the remaining bytes in a header that is longer than
- * we expected.
- */
- data += (sparse_header->file_hdr_sz - sizeof(sparse_header_t));
+ fastboot_fail("sparse header size mismatch");
+ return;
}
dprintf (SPEW, "=== Sparse Image Header ===\n");