linux-kernel - Re: [PATCH net-next] netlabel: fix out-of-bounds memory accesses

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Message-Id: <164786101019.12168.17918424530007349763.git-patchwork-notify@kernel.org>
Date:   Mon, 21 Mar 2022 11:10:10 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Wang Yufen <wangyufen@...wei.com>
Cc:     paul@...l-moore.com, davem@...emloft.net, kuba@...nel.org,
        pabeni@...hat.com, netdev@...r.kernel.org,
        linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] netlabel: fix out-of-bounds memory accesses

Hello:

This patch was applied to netdev/net-next.git (master)
by David S. Miller <davem@...emloft.net>:

On Fri, 18 Mar 2022 14:35:08 +0800 you wrote:
> In calipso_map_cat_ntoh(), in the for loop, if the return value of
> netlbl_bitmap_walk() is equal to (net_clen_bits - 1), when
> netlbl_bitmap_walk() is called next time, out-of-bounds memory accesses
> of bitmap[byte_offset] occurs.
> 
> The bug was found during fuzzing. The following is the fuzzing report
>  BUG: KASAN: slab-out-of-bounds in netlbl_bitmap_walk+0x3c/0xd0
>  Read of size 1 at addr ffffff8107bf6f70 by task err_OH/252
> 
> [...]

Here is the summary with links:
  - [net-next] netlabel: fix out-of-bounds memory accesses
    https://git.kernel.org/netdev/net-next/c/f22881de730e

You are awesome, thank you!
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