From: Andrew Morton <akpm@linux-foundation.org>
To: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
James Bottomley <JBottomley@Odin.com>,
linux-kernel@vger.kernel.org,
"K. Y. Srinivasan" <kys@microsoft.com>
Subject: Re: [PATCH] lib/string_helpers.c: fix infinite loop in string_get_size()
Date: Thu, 10 Sep 2015 16:08:15 -0700 [thread overview]
Message-ID: <20150910160815.30d56ee48bbfdf5eed783c53@linux-foundation.org> (raw)
In-Reply-To: <1441371393-15030-1-git-send-email-vkuznets@redhat.com>
On Fri, 4 Sep 2015 14:56:33 +0200 Vitaly Kuznetsov <vkuznets@redhat.com> wrote:
> string_get_size(1, 512, 0, ..., ...) call results in an infinite loop. The
> problem is that if size == 0 when we start calculating sf_cap this loop
> will never end.
>
> The caller causing the issue is sd_read_capacity(), the problem was noticed
> on Hyper-V.
When fixing bugs, please provide enough info for others to be able to
understand which kernel version(s) need the fix. In this case: what
end-user action triggers this bug? (iow, how does sdkp->capacity
become zero?)
next prev parent reply other threads:[~2015-09-10 23:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-04 12:56 [PATCH] lib/string_helpers.c: fix infinite loop in string_get_size() Vitaly Kuznetsov
2015-09-10 23:08 ` Andrew Morton [this message]
2015-09-11 18:31 ` James Bottomley
2015-09-14 9:06 ` Andy Shevchenko
2015-09-14 12:43 ` Vitaly Kuznetsov
2015-09-14 14:33 ` Andy Shevchenko
2015-09-14 9:16 ` Vitaly Kuznetsov
2015-09-11 1:22 ` James Bottomley
2015-09-14 9:19 ` Vitaly Kuznetsov
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