[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-block] [Qemu-devel] [PATCH v3 1/2] block: fix dangling bs->exp

From: Eric Blake
Subject: Re: [Qemu-block] [Qemu-devel] [PATCH v3 1/2] block: fix dangling bs->explicit_options in block.c
Date: Fri, 14 Jul 2017 09:42:22 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1

On 07/14/2017 09:35 AM, Manos Pitsidianakis wrote:
> In some error paths it is possible to QDECREF a freed dangling
> explicit_options, resulting in a heap overflow crash.  For example
> bdrv_open_inherit()'s fail unrefs it, then calls bdrv_unref which calls
> bdrv_close which also unrefs it.
> Signed-off-by: Manos Pitsidianakis <address@hidden>
> ---
>  block.c | 2 ++
>  1 file changed, 2 insertions(+)

Reviewed-by: Eric Blake <address@hidden>

Can you pinpoint which commit introduced the bug, in order to decide if
this affects 2.9 and should therefore be cc'd to qemu-stable?

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Attachment: signature.asc
Description: OpenPGP digital signature

reply via email to

[Prev in Thread] Current Thread [Next in Thread]