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From: Greg KH <gregkh@linuxfoundation.org>
To: gandalf 4a <baksmali404@gmail.com>
Cc: security@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net,
	andrii@kernel.org
Subject: Re: [SECURITY] KASAN global-out-of-bounds in BPF disassembler (bpf_ldsx_string, kernel 6.4+)
Date: Tue, 25 Aug 2026 10:43:57 +0200	[thread overview]
Message-ID: <2026082510-splashed-spoken-31a4@gregkh> (raw)
In-Reply-To: <CAOHg6aBPdesARUtOwR9NbsWT77L+GqTmfLGsdAQ=hf1YAGOitg@mail.gmail.com>

On Tue, Aug 25, 2026 at 04:37:48PM +0800, gandalf 4a wrote:
> Hi,
> I am writing to report a KASAN-detected global-out-of-bounds read
> vulnerability in the BPF disassembler that affects Linux kernel v6.4
> and later (all versions with BPF_MEMSX support). I have attached a
> minimal C reproducer and a one-line fix patch.

As this requires root access, just post the patch normally, in non-html
format, to the bpf list, with a real name for author and signed-off-by:
and the maintainers will be glad to review it like any other normal
patch.

thanks,

greg k-h

  reply	other threads:[~2026-08-25 11:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-25  8:37 [SECURITY] KASAN global-out-of-bounds in BPF disassembler (bpf_ldsx_string, kernel 6.4+) gandalf 4a
2026-08-25  8:43 ` Greg KH [this message]
2026-08-25  9:15 ` Jiayuan Chen

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