Date: Thu, 21 Nov 2002 10:52:04 -0700 From: "David G. Andersen" <danderse@cs.utah.edu> To: freebsd-security@freebsd.org Subject: File table exhaustion patch Message-ID: <20021121105204.B75421@cs.utah.edu>
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In PR 45353, I've submitted a patch to reserve a handfull of file table entries for root-only use, to mitigate the effects of user processes that leak file descriptors: http://www.freebsd.org/cgi/query-pr.cgi?pr=45353 Even with per-process file descriptor limits, it's pretty easy for a buggy program that does any kind of forking to run the system out of file table entries (or for a malicious user to do so). The patch above is trivial, and at least enables root to login and fix things up a bit. I've been running it locally for about a week, and it's happy. Is the form of the solution acceptable? (And if so, anyone interested in committing it to -current for a while? ;-) -Dave -- work: dga@lcs.mit.edu me: dga@pobox.com MIT Laboratory for Computer Science http://www.angio.net/ I do not accept unsolicited commercial email. Do not spam me. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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