From: syzbot <syzbot+3140b17cb44a7b174008@syzkaller.appspotmail.com>
To: dvyukov@google.com, hdanton@sina.com, jasowang@redhat.com,
linux-kernel@vger.kernel.org, mst@redhat.com,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] kernel BUG in vhost_get_vq_desc
Date: Sun, 20 Feb 2022 05:20:07 -0800 [thread overview]
Message-ID: <00000000000081acbc05d872f93c@google.com> (raw)
In-Reply-To: <20220220075826-mutt-send-email-mst@kernel.org>
Hello,
syzbot has tested the proposed patch but the reproducer is still triggering an issue:
kernel BUG in vhost_get_vq_desc
------------[ cut here ]------------
kernel BUG at drivers/vhost/vhost.c:2335!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4048 Comm: vhost-4047 Not tainted 5.17.0-rc4-syzkaller-00054-gf71077a4d84b-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vhost_get_vq_desc+0x1d43/0x22c0 drivers/vhost/vhost.c:2335
Code: 00 00 00 48 c7 c6 20 2c 9d 8a 48 c7 c7 98 a6 8e 8d 48 89 ca 48 c1 e1 04 48 01 d9 e8 b7 59 28 fd e9 74 ff ff ff e8 5d c8 a1 fa <0f> 0b e8 56 c8 a1 fa 48 8b 54 24 18 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90001affb88 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff88801c9c5700 RSI: ffffffff86d715c3 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff86d706bc R11: 0000000000000000 R12: ffff888073b44d68
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888073b44bb0
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000002 CR3: 0000000079bfe000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
vhost_vsock_handle_tx_kick+0x277/0xa20 drivers/vhost/vsock.c:522
vhost_worker+0x23d/0x3d0 drivers/vhost/vhost.c:372
kthread+0x2e9/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:vhost_get_vq_desc+0x1d43/0x22c0 drivers/vhost/vhost.c:2335
Code: 00 00 00 48 c7 c6 20 2c 9d 8a 48 c7 c7 98 a6 8e 8d 48 89 ca 48 c1 e1 04 48 01 d9 e8 b7 59 28 fd e9 74 ff ff ff e8 5d c8 a1 fa <0f> 0b e8 56 c8 a1 fa 48 8b 54 24 18 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90001affb88 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff88801c9c5700 RSI: ffffffff86d715c3 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff86d706bc R11: 0000000000000000 R12: ffff888073b44d68
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888073b44bb0
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005619d349f018 CR3: 0000000079bfe000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Tested on:
commit: f71077a4 Merge tag 'mmc-v5.17-rc1-2' of git://git.kern..
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
console output: https://syzkaller.appspot.com/x/log.txt?x=161cf916700000
kernel config: https://syzkaller.appspot.com/x/.config?x=a78b064590b9f912
dashboard link: https://syzkaller.appspot.com/bug?extid=3140b17cb44a7b174008
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch: https://syzkaller.appspot.com/x/patch.diff?x=13500f0e700000
next prev parent reply other threads:[~2022-02-20 13:20 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20220219125100.835-1-hdanton@sina.com>
2022-02-19 13:01 ` [syzbot] kernel BUG in vhost_get_vq_desc syzbot
2022-02-21 13:09 ` Stefano Garzarella
[not found] ` <20220221133646.1551-1-hdanton@sina.com>
2022-02-21 13:45 ` Stefano Garzarella
2022-02-21 13:59 ` Michael S. Tsirkin
2022-02-21 14:04 ` Stefano Garzarella
[not found] ` <20220220014715.921-1-hdanton@sina.com>
2022-02-20 2:10 ` syzbot
2022-02-21 14:09 ` Stefano Garzarella
2022-02-21 14:25 ` syzbot
2022-02-20 10:08 ` Michael S. Tsirkin
[not found] ` <20220220110941.980-1-hdanton@sina.com>
2022-02-20 12:16 ` Michael S. Tsirkin
2022-02-20 12:31 ` Dmitry Vyukov
2022-02-20 13:10 ` Michael S. Tsirkin
2022-02-20 13:29 ` Michael S. Tsirkin
2022-02-20 13:20 ` syzbot [this message]
[not found] <20220222031128.1850-1-hdanton@sina.com>
2022-02-22 4:07 ` syzbot
[not found] <20220222001455.1737-1-hdanton@sina.com>
2022-02-22 0:26 ` syzbot
[not found] <20220221140558.1618-1-hdanton@sina.com>
2022-02-21 14:14 ` syzbot
[not found] <20220221054115.1270-1-hdanton@sina.com>
2022-02-21 5:51 ` syzbot
[not found] <20220221040745.1177-1-hdanton@sina.com>
2022-02-21 4:18 ` syzbot
[not found] ` <20220221085227.1356-1-hdanton@sina.com>
2022-02-21 9:17 ` Michael S. Tsirkin
[not found] ` <20220221101538.1415-1-hdanton@sina.com>
2022-02-21 10:48 ` Michael S. Tsirkin
[not found] ` <20220221130022.1494-1-hdanton@sina.com>
2022-02-21 13:58 ` Michael S. Tsirkin
2022-02-21 12:46 ` syzbot
[not found] <20220221021208.1109-1-hdanton@sina.com>
2022-02-21 2:26 ` syzbot
[not found] <20220219114936.747-1-hdanton@sina.com>
2022-02-19 12:00 ` syzbot
2022-02-12 22:47 syzbot
2022-02-18 1:21 ` syzbot
2022-02-18 11:37 ` Michael S. Tsirkin
2022-02-18 11:37 ` Michael S. Tsirkin
2022-03-02 8:29 ` Lee Jones
2022-03-02 8:29 ` Lee Jones
2022-03-02 9:18 ` Stefano Garzarella
2022-03-02 9:18 ` Stefano Garzarella
2022-03-02 9:23 ` Stefano Garzarella
2022-03-02 9:23 ` Stefano Garzarella
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