From: "Stephan Müller" <smueller@chronox.de>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: Matthew Wilcox <willy@infradead.org>,
Herbert Xu <herbert@gondor.apana.org.au>,
David Miller <davem@davemloft.net>,
linux-crypto@vger.kernel.org, Eric Biggers <ebiggers3@gmail.com>,
syzbot <syzbot+75397ee3df5c70164154@syzkaller.appspotmail.com>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
syzkaller-bugs@googlegroups.com,
Al Viro <viro@zeniv.linux.org.uk>
Subject: Re: WARNING in kmem_cache_free
Date: Sun, 08 Apr 2018 17:31:46 +0200 [thread overview]
Message-ID: <4564679.HlOejCIXXz@positron.chronox.de> (raw)
In-Reply-To: <CACT4Y+YTjUzk7GFuHi6L4KT74p7xv9W-ACU3Uez4V=YLvy5PhQ@mail.gmail.com>
Am Sonntag, 8. April 2018, 13:18:06 CEST schrieb Dmitry Vyukov:
Hi Dmitry,
>
> Running syz-repro utility on this log, I think I've found the guilty guy:
> https://gist.githubusercontent.com/dvyukov/1dd75d55efd238e7207af1cc38478b3a/
> raw/403859b56b161a6fbb158e8953fac5bb6e73b1a1/gistfile1.txt
>
I am unable to reproduce it with the code. I am using the current
cryptodev-2.6 tree with kazan enabled. Could you please give me your kernel
config or a pointer of the used tree?
> It crashes as:
> BUG: KASAN: use-after-free in drbg_kcapi_seed+0x1178/0x12e0
> and:
> BUG: unable to handle kernel paging request at ffffebe000000020
> and with other indications of badly corrupted heap.
>
> This points to crypto/drbg.c, so +crypto maintainers.
Ciao
Stephan
next prev parent reply other threads:[~2018-04-08 15:31 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-06 13:24 WARNING in kmem_cache_free syzbot
2018-04-06 13:33 ` Dmitry Vyukov
2018-04-08 3:16 ` Use struct page for filename Matthew Wilcox
2018-04-08 4:42 ` Al Viro
2018-04-08 5:59 ` WARNING in kmem_cache_free Al Viro
2018-04-08 6:01 ` Matthew Wilcox
2018-04-08 10:26 ` Dmitry Vyukov
2018-04-08 11:18 ` Dmitry Vyukov
2018-04-08 15:31 ` Stephan Müller [this message]
2018-04-08 15:41 ` Dmitry Vyukov
2018-04-08 19:07 ` [PATCH] crypto: DRBG - guard uninstantion by lock Stephan Müller
2018-04-08 22:46 ` Theodore Y. Ts'o
2018-04-09 5:40 ` Stephan Mueller
2018-04-09 7:57 ` Dmitry Vyukov
2018-04-10 15:23 ` Dmitry Vyukov
2018-04-10 15:35 ` Stephan Mueller
2018-04-11 12:29 ` Dmitry Vyukov
2018-04-11 12:59 ` Stephan Mueller
2018-04-11 14:26 ` Stephan Müller
2018-04-11 14:31 ` [PATCH] crypto: drbg - set freed buffers to NULL Stephan Müller
2018-04-11 17:29 ` Eric Biggers
2018-04-12 6:40 ` Stephan Müller
2018-04-20 16:54 ` Herbert Xu
2018-04-11 17:09 ` [PATCH] crypto: DRBG - guard uninstantion by lock Dmitry Vyukov
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