linux-kernel - Re: [PATCH] arm64: kdump: update ppos when reading elfcorehdr

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Message-Id: <161641719902.3900979.10337880549161097433.b4-ty@kernel.org>
Date:   Mon, 22 Mar 2021 13:19:57 +0000
From:   Will Deacon <will@...nel.org>
To:     Pavel Tatashin <pasha.tatashin@...een.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        jmorris@...ei.org, catalin.marinas@....com,
        tyhicks@...ux.microsoft.com
Cc:     kernel-team@...roid.com, Will Deacon <will@...nel.org>
Subject: Re: [PATCH] arm64: kdump: update ppos when reading elfcorehdr

On Fri, 19 Mar 2021 16:50:54 -0400, Pavel Tatashin wrote:
> The ppos points to a position in the old kernel memory (and in case of
> arm64 in the crash kernel since elfcorehdr is passed as a segment). The
> function should update the ppos by the amount that was read. This bug is
> not exposed by accident, but other platforms update this value properly.
> So, fix it in ARM64 version of elfcorehdr_read() as well.

Applied to arm64 (for-next/fixes), thanks!

[1/1] arm64: kdump: update ppos when reading elfcorehdr
      https://git.kernel.org/arm64/c/141f8202cfa4

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev