Messages in this thread | | | Date | Mon, 29 Apr 2002 18:21:34 +0100 | From | Arjan van de Ven <> | Subject | Re: devfs: BKL *not* taken while opening devices |
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Dave Hansen wrote: > > Russell King wrote: > > Kernel 2.5.8... Devfs devfs_open() bypasses the normal chrdev_open > > and blkdev_open functions, and misses out taking the BKL. 2.5.10 is > > the same. > > > > Certainly the tty layer (and probably many of the other devices as > > well) require the BKL to be taken before calling the open method. > > Has the time come to push the BKL down into all of the driver open()s? > It's going to be a lot of work, but it has to happen eventually, right?
I'm not convinced of that. It's not nearly a critical path and it's better to get even the "dumb" drivers safe than to risk having big security holes in there for years to come. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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