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From: Greg KH <gregkh@linuxfoundation.org>
To: Kurt Manucredo <fuzzybritches0@gmail.com>
Cc: linux-kernel-mentees@lists.linuxfoundation.org
Subject: Re: [PATCH v2] bpf: core: fix shift-out-of-bounds in ___bpf_prog_run
Date: Tue, 1 Jun 2021 17:43:24 +0200	[thread overview]
Message-ID: <YLZVnNNAkAQFvSm8@kroah.com> (raw)
In-Reply-To: <12537-32529-curtm@phaethon>

On Tue, Jun 01, 2021 at 04:33:09PM +0200, Kurt Manucredo wrote:
> Fix shift-out-of-bounds in ___bpf_prog_run().

How is this "fixed"?

> 
> UBSAN: shift-out-of-bounds in kernel/bpf/core.c:1414:2
> shift exponent 248 is too large for 32-bit type 'unsigned int'

What is this from?

Any reason you didn't cc: the bpf maintainers and developers?


> Reported-by: syzbot+bed360704c521841c85d@syzkaller.appspotmail.com

Does this pass the syzbot testing?

thanks,

greg k-h
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  reply	other threads:[~2021-06-01 15:43 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-26 21:40 [PATCH] bpf: core: fix shift-out-of-bounds in ___bpf_prog_run Kurt Manucredo
2021-05-27  4:29 ` Greg KH
2021-06-01 14:33   ` [PATCH v2] " Kurt Manucredo
2021-06-01 15:43     ` Greg KH [this message]
2021-06-01 21:28       ` Kurt Manucredo
2021-06-02  6:09         ` Greg KH
2021-06-02  6:36           ` Pavel Skripkin
2021-06-04 21:15             ` Kurt Manucredo

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