Messages in this thread |  | | Date | 08 Jan 2001 23:39:00 +0200 | From | (Kai Henningsen) | Subject | Re: setfsuid on ext2 weirdness (2.4) |
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torvalds@transmeta.com (Linus Torvalds) wrote on 08.01.01 in <93d7fr$429$1@penguin.transmeta.com>:
> And hey, if you think the above is confusing, try making your /dev/null > a regular (writable) file by mistake. Now THAT will be confusing as > hell: things will actually work surprisingly well, but some thing > _really_ don't work the way they are intended to. And chasing it down > is an exercise in futility. Yes, I've done that at least twice as root > by mistake.
So have I. It's so damned easy. Just remove the original; pretty soon *something* will create a plain file there.
Now you have:
* Actual input reading from /dev/null (and it changes!). * Unusual permissions on /dev/null
Fun fun fun. Many unusual failure modes.
MfG Kai - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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