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From: Miklos Szeredi <>
To: Chirantan Ekbote <>
Cc:, Dylan Reid <>,
	Suleiman Souhlal <>,
	fuse-devel <>
Subject: Re: [PATCH] fuse: Fix parameter for FS_IOC_{GET,SET}FLAGS
Date: Wed, 15 Jul 2020 14:20:15 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Tue, Jul 14, 2020 at 12:26 PM Chirantan Ekbote
<> wrote:
> The ioctl encoding for this parameter is a long but the documentation
> says it should be an int and the kernel drivers expect it to be an int.
> If the fuse driver treats this as a long it might end up scribbling over
> the stack of a userspace process that only allocated enough space for an
> int.
> This was previously discussed in [1] and a patch for fuse was proposed
> in [2].  From what I can tell the patch in [2] was nacked in favor of
> adding new, "fixed" ioctls and using those from userspace.  However
> there is still no "fixed" version of these ioctls and the fact is that
> it's sometimes infeasible to change all userspace to use the new one.

Okay, applied.

Funny that no one came back with this issue for 7 years.


  reply	other threads:[~2020-07-15 12:20 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-14 10:26 [PATCH] fuse: Fix parameter for FS_IOC_{GET,SET}FLAGS Chirantan Ekbote
2020-07-15 12:20 ` Miklos Szeredi [this message]
2020-07-15 23:06   ` Sedat Dilek
2020-07-16  5:17     ` Miklos Szeredi

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