linux-kernel - [PATCH RFC v6 18/21] dept: Disable Dept on struct crypto

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed,  4 May 2022 17:17:46 +0900
From:   Byungchul Park <byungchul.park@....com>
To:     torvalds@...ux-foundation.org
Cc:     damien.lemoal@...nsource.wdc.com, linux-ide@...r.kernel.org,
        adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org,
        mingo@...hat.com, linux-kernel@...r.kernel.org,
        peterz@...radead.org, will@...nel.org, tglx@...utronix.de,
        rostedt@...dmis.org, joel@...lfernandes.org, sashal@...nel.org,
        daniel.vetter@...ll.ch, chris@...is-wilson.co.uk,
        duyuyang@...il.com, johannes.berg@...el.com, tj@...nel.org,
        tytso@....edu, willy@...radead.org, david@...morbit.com,
        amir73il@...il.com, bfields@...ldses.org,
        gregkh@...uxfoundation.org, kernel-team@....com,
        linux-mm@...ck.org, akpm@...ux-foundation.org, mhocko@...nel.org,
        minchan@...nel.org, hannes@...xchg.org, vdavydov.dev@...il.com,
        sj@...nel.org, jglisse@...hat.com, dennis@...nel.org, cl@...ux.com,
        penberg@...nel.org, rientjes@...gle.com, vbabka@...e.cz,
        ngupta@...are.org, linux-block@...r.kernel.org,
        paolo.valente@...aro.org, josef@...icpanda.com,
        linux-fsdevel@...r.kernel.org, viro@...iv.linux.org.uk,
        jack@...e.cz, jack@...e.com, jlayton@...nel.org,
        dan.j.williams@...el.com, hch@...radead.org, djwong@...nel.org,
        dri-devel@...ts.freedesktop.org, airlied@...ux.ie,
        rodrigosiqueiramelo@...il.com, melissa.srw@...il.com,
        hamohammed.sa@...il.com, 42.hyeyoo@...il.com
Subject: [PATCH RFC v6 18/21] dept: Disable Dept on struct crypto_larval's completion for now

struct crypto_larval's completion is used for multiple purposes e.g.
waiting for test to complete or waiting for probe to complete.

The completion variable needs to be split according to what it's used
for. Otherwise, Dept cannot distinguish one from another and doesn't
work properly. Now that it isn't, disable Dept on it.

Signed-off-by: Byungchul Park <byungchul.park@....com>
---
 crypto/api.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/crypto/api.c b/crypto/api.c
index 69508ae..305d24c 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -115,7 +115,12 @@ struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask)
 	larval->alg.cra_destroy = crypto_larval_destroy;
 
 	strlcpy(larval->alg.cra_name, name, CRYPTO_MAX_ALG_NAME);
-	init_completion(&larval->completion);
+	/*
+	 * TODO: Split ->completion according to what it's used for e.g.
+	 * ->test_completion, ->probe_completion and the like, so that
+	 *  Dept can track its dependency properly.
+	 */
+	init_completion_nocheck(&larval->completion);
 
 	return larval;
 }
-- 
1.9.1