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Open Source and information security mailing list archives
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Date: Thu, 14 Jan 2010 21:59:48 +0100 From: Kay Sievers <kay.sievers@...y.org> To: Henrique de Moraes Holschuh <hmh@....eng.br> Cc: Greg KH <greg@...ah.com>, linux-kernel <linux-kernel@...r.kernel.org> Subject: Re: Driver-Core: devtmpfs - reset inode permissions before unlinking On Thu, Jan 14, 2010 at 21:53, Henrique de Moraes Holschuh <hmh@....eng.br> wrote: > On Wed, 13 Jan 2010, Kay Sievers wrote: >> across the device lifetime by creating hardlinks, in the unusual case >> that there is a user-writable directory on the same filesystem. > > Does a tmpfs mounted in /dev/shm count as "user-writable directory on the > same filesystem" ? Not if it's a separate tmpfs mount, which is recommended. Only if it's just a plain directory on the /dev filesystem. Udev does the same and resets the permissions of the inode before deleting it. Kay -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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