git: cryptsetup - fix buffer overflow

Alex Hornung alexh at
Sat Aug 14 14:07:38 PDT 2010

commit 9b5950612f254d98d48b91158b7648d6cc48dad1
Author: Alex Hornung <ahornung at>
Date:   Sat Aug 14 23:01:47 2010 +0100

    cryptsetup - fix buffer overflow
    * fix a buffer overflow introduced during the porting. Linux originally
      did digest = gcry_md_read(hd, hash_id); memcpy(dst, digest, len);
      I ported that to do EVP_DigestFinal directly into dst, causing
      corruption. Avoid this by writing to some intermediate (large) buffer
      and then using memcpy like Linux does.

Summary of changes:
 contrib/cryptsetup/luks/af.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

DragonFly BSD source repository

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