netdev - Re: [PATCH] s390/bpf: perform r1 range checking before accessing jit->seen

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Date:   Thu, 15 Jul 2021 17:50:04 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Colin King <colin.king@...onical.com>
Cc:     iii@...ux.ibm.com, hca@...ux.ibm.com, gor@...ux.ibm.com,
        borntraeger@...ibm.com, ast@...nel.org, daniel@...earbox.net,
        andrii@...nel.org, songliubraving@...com, yhs@...com,
        john.fastabend@...il.com, kpsingh@...nel.org,
        holzheu@...ux.vnet.ibm.com, schwidefsky@...ibm.com,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        linux-s390@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] s390/bpf: perform r1 range checking before accessing
 jit->seen_reg[r1]

Hello:

This patch was applied to bpf/bpf.git (refs/heads/master):

On Thu, 15 Jul 2021 13:57:12 +0100 you wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> Currently array jit->seen_reg[r1] is being accessed before the range
> checking of index r1. The range changing on r1 should be performed
> first since it will avoid any potential out-of-range accesses on the
> array seen_reg[] and also it is more optimal to perform checks on
> r1 before fetching data from the array.  Fix this by swapping the
> order of the checks before the array access.
> 
> [...]

Here is the summary with links:
  - s390/bpf: perform r1 range checking before accessing jit->seen_reg[r1]
    https://git.kernel.org/bpf/bpf/c/91091656252f

You are awesome, thank you!
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