From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it1-f198.google.com ([209.85.166.198]:37908 "EHLO mail-it1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725904AbeKSFoK (ORCPT ); Mon, 19 Nov 2018 00:44:10 -0500 Received: by mail-it1-f198.google.com with SMTP id j190-v6so5706457itj.3 for ; Sun, 18 Nov 2018 11:23:03 -0800 (PST) MIME-Version: 1.0 Date: Sun, 18 Nov 2018 11:23:03 -0800 Message-ID: <0000000000004ae11b057af5543f@google.com> Subject: BUG: unable to handle kernel paging request in aead_geniv_alloc From: syzbot To: davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-crypto-owner@vger.kernel.org List-ID: Hello, syzbot found the following crash on: HEAD commit: 9c549a6b0573 selftests: add explicit test for multiple con.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=13a46f7b400000 kernel config: https://syzkaller.appspot.com/x/.config?x=d86f24333880b605 dashboard link: https://syzkaller.appspot.com/bug?extid=cd50d1708db841432d8a compiler: gcc (GCC) 8.0.1 20180413 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+cd50d1708db841432d8a@syzkaller.appspotmail.com BUG: unable to handle kernel paging request at fffffffffffffff0 PGD 946d067 P4D 946d067 PUD 946f067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9032 Comm: cryptomgr_probe Not tainted 4.20.0-rc2+ #300 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'loop1' (00000000f780ed70): kobject_uevent_env RIP: 0010:aead_geniv_alloc+0x2de/0x780 crypto/aead.c:240 Code: 00 00 fc ff df 49 8d 7c 24 f0 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ea 03 00 00 <45> 8b 74 24 f0 bf 07 00 00 00 48 c7 c3 ea ff ff ff 44 89 f6 e8 59 RSP: 0018:ffff8881946b7e40 EFLAGS: 00010246 kobject: 'loop1' (00000000f780ed70): fill_kobj_path: path = '/devices/virtual/block/loop1' RAX: 0000000000000003 RBX: 0000000000000000 RCX: ffffffff835c1711 RDX: 0000000000000000 RSI: ffffffff835c171e RDI: fffffffffffffff0 RBP: ffff8881946b7e80 R08: ffff8881975da540 R09: ffffed10328d6fa3 R10: ffffed10328d6fa3 R11: 0000000000000003 R12: 0000000000000000 R13: ffff8881d3ee66b0 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff0 CR3: 000000019a8d0000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: seqiv_aead_create crypto/seqiv.c:149 [inline] seqiv_create+0x99/0x290 crypto/seqiv.c:190 cryptomgr_probe+0x6d/0x280 crypto/algboss.c:75 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Modules linked in: CR2: fffffffffffffff0 ---[ end trace e6ac52e6f5849122 ]--- RIP: 0010:aead_geniv_alloc+0x2de/0x780 crypto/aead.c:240 Code: 00 00 fc ff df 49 8d 7c 24 f0 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ea 03 00 00 <45> 8b 74 24 f0 bf 07 00 00 00 48 c7 c3 ea ff ff ff 44 89 f6 e8 59 RSP: 0018:ffff8881946b7e40 EFLAGS: 00010246 RAX: 0000000000000003 RBX: 0000000000000000 RCX: ffffffff835c1711 RDX: 0000000000000000 RSI: ffffffff835c171e RDI: fffffffffffffff0 RBP: ffff8881946b7e80 R08: ffff8881975da540 R09: ffffed10328d6fa3 R10: ffffed10328d6fa3 R11: 0000000000000003 R12: 0000000000000000 R13: ffff8881d3ee66b0 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff0 CR3: 000000019a8d0000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with syzbot.