linux-kernel - Re: [PATCH] misc: ocxl: fix possible double free in ocxl_file_register

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Message-Id: <165260953458.1040779.9899337864192630526.b4-ty@ellerman.id.au>
Date:   Sun, 15 May 2022 20:12:14 +1000
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     arnd@...db.de, alastair@...ilva.org, ajd@...ux.ibm.com,
        Hangyu Hua <hbh25y@...il.com>, mpe@...erman.id.au,
        gregkh@...uxfoundation.org, fbarrat@...ux.ibm.com
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] misc: ocxl: fix possible double free in ocxl_file_register_afu

On Mon, 18 Apr 2022 16:57:58 +0800, Hangyu Hua wrote:
> info_release() will be called in device_unregister() when info->dev's
> reference count is 0. So there is no need to call ocxl_afu_put() and
> kfree() again.
> 
> Fix this by adding free_minor() and return to err_unregister error path.
> 
> 
> [...]

Applied to powerpc/next.

[1/1] misc: ocxl: fix possible double free in ocxl_file_register_afu
      https://git.kernel.org/powerpc/c/950cf957fe34d40d63dfa3bf3968210430b6491e

cheers