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On Tuesday, 22-Aug-2006 at 7:7 +0400, Solar Designer wrote: > On Mon, Aug 21, 2006 at 07:36:01PM -0400, Ernie Petrides wrote: > > - printk(KERN_ERR "Unable to load interpreter %.128s\n", > > - elf_interpreter); > > I'd rather have this message rate-limited, not dropped completely. I consider any printk() that can be arbitrarily triggered by an unprivileged user to be inappropriate, rate-limited or not. I recommend that it be removed entirely. > Another long-time concern that I had is that we've got some printk()s > of user-supplied string data. What about embedded linefeeds - can this > be used to produce fake kernel messages with arbitrary log level (syslog > priority)? It certainly seems so. > > Also, there are terminal controls... These are valid concerns. Allowing the kernel to print user-fabricated strings is a terrible idea. Cheers. -ernie - 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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