From: patchwork-bot+netdevbpf@kernel.org
To: Deepak Sharma <deepak.sharma.472935@gmail.com>
Cc: krzk@kernel.org, vadim.fedorenko@linux.dev,
linville@tuxdriver.com, kuba@kernel.org, edumazet@google.com,
juraj@sarinay.com, pabeni@redhat.com, horms@kernel.org,
netdev@vger.kernel.org, stable@vger.kernel.org,
linux-kernel-mentees@lists.linux.dev,
david.hunter.linux@gmail.com, skhan@linuxfoundation.org,
syzbot+740e04c2a93467a0f8c8@syzkaller.appspotmail.com
Subject: Re: [PATCH net v4] net: nfc: nci: Add parameter validation for packet data
Date: Tue, 30 Sep 2025 08:30:06 +0000 [thread overview]
Message-ID: <175922100601.1892773.12754446584125259059.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20250925132846.213425-1-deepak.sharma.472935@gmail.com>
Hello:
This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@redhat.com>:
On Thu, 25 Sep 2025 18:58:46 +0530 you wrote:
> Syzbot reported an uninitialized value bug in nci_init_req, which was
> introduced by commit 5aca7966d2a7 ("Merge tag
> 'perf-tools-fixes-for-v6.17-2025-09-16' of
> git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools").
>
> This bug arises due to very limited and poor input validation
> that was done at nic_valid_size(). This validation only
> validates the skb->len (directly reflects size provided at the
> userspace interface) with the length provided in the buffer
> itself (interpreted as NCI_HEADER). This leads to the processing
> of memory content at the address assuming the correct layout
> per what opcode requires there. This leads to the accesses to
> buffer of `skb_buff->data` which is not assigned anything yet.
>
> [...]
Here is the summary with links:
- [net,v4] net: nfc: nci: Add parameter validation for packet data
https://git.kernel.org/netdev/net/c/9c328f54741b
You are awesome, thank you!
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prev parent reply other threads:[~2025-09-30 8:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-25 13:28 [PATCH net v4] net: nfc: nci: Add parameter validation for packet data Deepak Sharma
2025-09-30 8:30 ` patchwork-bot+netdevbpf [this message]
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