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From: Michael Ellerman <mpe@ellerman.id.au>
To: Sachin Sant <sachinp@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org, zdai@linux.ibm.com
Subject: Re: [PATCH] powerpc/pseries: Fix use after free in remove_phb_dynamic()
Date: Mon, 21 Mar 2022 13:18:17 +1100	[thread overview]
Message-ID: <87sfrcgiae.fsf@mpe.ellerman.id.au> (raw)
In-Reply-To: <6A815387-773D-413C-B0AE-2630F434FA8C@linux.ibm.com>

Sachin Sant <sachinp@linux.ibm.com> writes:
>> On 18-Mar-2022, at 9:12 AM, Michael Ellerman <mpe@ellerman.id.au> wrote:
>> To avoid it, we can take a reference to the host_bridge->dev until we're
>> done using phb. Then when we drop the reference the phb will be freed.
>> 
>> Fixes: 2dd9c11b9d4d ("powerpc/pseries: use pci_host_bridge.release_fn() to kfree(phb)")
>> Reported-by: David Dai <zdai@linux.ibm.com>
>> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
>> —
> Verified successfully with 5.17.0-rc8-00061-g34e047aa16c0 + patch.
>
> Tested-by: Sachin Sant <sachinp@linux.ibm.com>

Thanks for testing.

cheers

  reply	other threads:[~2022-03-21  2:18 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-18  3:42 [PATCH] powerpc/pseries: Fix use after free in remove_phb_dynamic() Michael Ellerman
2022-03-20  7:07 ` Sachin Sant
2022-03-21  2:18   ` Michael Ellerman [this message]
2022-03-21  5:05 ` Michael Ellerman

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