From: Mathias Krause <minipli@googlemail.com>
Date: Sat, 26 Aug 2017 15:09:00 +0000 (+0200)
Subject: xfrm_user: fix info leak in build_aevent()
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=27558df8159c056fb5d84511b4aef3381cc93242;p=pandora-kernel.git

xfrm_user: fix info leak in build_aevent()

commit 931e79d7a7ddee4709c56b39de169a36804589a1 upstream.

The memory reserved to dump the ID of the xfrm state includes a padding
byte in struct xfrm_usersa_id added by the compiler for alignment. To
prevent the heap info leak, memset(0) the sa_id before filling it.

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Fixes: d51d081d6504 ("[IPSEC]: Sync series - user")
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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