From: Matthew Wilcox <willy@infradead.org>
To: Mark Rutland <mark.rutland@arm.com>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
Courtney Cavin <courtney.cavin@sonymobile.com>,
Bjorn Andersson <bjorn.andersson@linaro.org>
Subject: Re: Preemptible idr_alloc() in QRTR code
Date: Tue, 26 Jan 2021 14:58:33 +0000 [thread overview]
Message-ID: <20210126145833.GM308988@casper.infradead.org> (raw)
In-Reply-To: <20210126104734.GB80448@C02TD0UTHF1T.local>
On Tue, Jan 26, 2021 at 10:47:34AM +0000, Mark Rutland wrote:
> Hi,
>
> When fuzzing arm64 with Syzkaller, I'm seeing some splats where
> this_cpu_ptr() is used in the bowels of idr_alloc(), by way of
> radix_tree_node_alloc(), in a preemptible context:
I sent a patch to fix this last June. The maintainer seems to be
under the impression that I care an awful lot more about their
code than I do.
https://lore.kernel.org/netdev/20200605120037.17427-1-willy@infradead.org/
next prev parent reply other threads:[~2021-01-26 15:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-26 10:47 Preemptible idr_alloc() in QRTR code Mark Rutland
2021-01-26 14:58 ` Matthew Wilcox [this message]
2021-01-26 16:21 ` Mark Rutland
2021-01-26 17:00 ` Bjorn Andersson
2021-01-26 18:36 ` Mark Rutland
2021-01-27 0:41 ` Matthew Wilcox
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