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From: syzbot <syzbot+e1374b2ec8f6a25ab2e5@syzkaller.appspotmail.com>
To: akpm@linux-foundation.org, aneesh.kumar@linux.ibm.com,
	dan.j.williams@intel.com, ira.weiny@intel.com, jack@suse.cz,
	jhubbard@nvidia.com, jmorris@namei.org, keith.busch@intel.com,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	linux-security-module@vger.kernel.org, richard.weiyang@gmail.com,
	rppt@linux.ibm.com, serge@hallyn.com, sfr@canb.auug.org.au,
	syzkaller-bugs@googlegroups.com, willy@infradead.org,
	zohar@linux.ibm.com
Subject: Re: possible deadlock in get_user_pages_unlocked (2)
Date: Tue, 04 Jun 2019 18:16:00 -0700	[thread overview]
Message-ID: <0000000000001d42b5058a895703@google.com> (raw)
In-Reply-To: <000000000000543e45058a3cf40b@google.com>

syzbot has bisected this bug to:

commit 69d61f577d147b396be0991b2ac6f65057f7d445
Author: Mimi Zohar <zohar@linux.ibm.com>
Date:   Wed Apr 3 21:47:46 2019 +0000

     ima: verify mprotect change is consistent with mmap policy

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1055a2f2a00000
start commit:   56b697c6 Add linux-next specific files for 20190604
git tree:       linux-next
final crash:    https://syzkaller.appspot.com/x/report.txt?x=1255a2f2a00000
console output: https://syzkaller.appspot.com/x/log.txt?x=1455a2f2a00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=4248d6bc70076f7d
dashboard link: https://syzkaller.appspot.com/bug?extid=e1374b2ec8f6a25ab2e5
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=165757eea00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10dd3e86a00000

Reported-by: syzbot+e1374b2ec8f6a25ab2e5@syzkaller.appspotmail.com
Fixes: 69d61f577d14 ("ima: verify mprotect change is consistent with mmap  
policy")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

  parent reply	other threads:[~2019-06-05  1:16 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-01  6:08 possible deadlock in get_user_pages_unlocked (2) syzbot
2019-06-04 21:19 ` syzbot
2019-06-05  1:16 ` syzbot [this message]
2019-06-10 19:06   ` [IMA] " Eric Biggers
2019-06-23 22:16     ` Eric Biggers

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