Bugtraq mailing list archives
Re: Linux kernel filesystem oddities
From: lcamtuf () BOSS STASZIC WAW PL (Michal Zalewski)
Date: Mon, 6 Jul 1998 14:55:58 +0200
On Wed, 8 Jul 1998, Pavel Kankovsky wrote:
FIFO itself occupies a single inode, no block, therefore charging inode quota but not block quota is correct.
It's not charged at all. Set inode quota to something reasonable, then create any amount FIFOs in /tmp.
But there will be problem with hard-links - creator of this object is...Hardlink is not a fs object, it is a directory entry.
Yep. I mean, we need more information about these entries - who really CREATED entry... But it's a major change in filesystem architecture and I don't think it's possible...
The world writable directory is a real problem. It is similar to world writable files: anyone can use them to store data on its owner.
They are not similar, because directory stores data about owner of entries in it. Kernel provides mechanism to limit it, but unfortunately, this mechanism is waek. _______________________________________________________________________ Michal Zalewski [lcamtuf () boss staszic waw pl] <= finger for pub PGP key Iterowac jest rzecza ludzka, wykonywac rekursywnie - boska [P. Deutsch] [echo "\$0&\$0">_;chmod +x _;./_] <=------=> [tel +48 (0) 22 813 25 86]
Current thread:
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- Linux kernel filesystem oddities Michal Zalewski (Jul 05)
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- Re: Linux kernel filesystem oddities Pavel Kankovsky (Jul 08)
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- Re: Linux kernel filesystem oddities Pavel Kankovsky (Jul 08)
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