libblkid: bitlocker: fix unaligned access

Value of 64 has been chose arbitrarily

diff --git a/libblkid/src/superblocks/bitlocker.c b/libblkid/src/superblocks/bitlocker.c
index 111edf39bc64ac63feb28443b9a131e812fc91f2..a9a7bfb8f52f481da3326607377ce4c37be95d28 100644 (file)
--- a/libblkid/src/superblocks/bitlocker.c
+++ b/libblkid/src/superblocks/bitlocker.c
@@ -113,7 +113,7 @@ static int get_bitlocker_headers(blkid_probe pr,
                goto nothing;
        }
 
-       if (!off)
+       if (!off || off % 64)
                goto nothing;
        if (buf_hdr)
                *buf_hdr = buf;