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Date: Wed, 15 Aug 2007 16:03:39 +0800 From: gshan <gshan@...atel-lucent.com> To: Bernd Eckenfels <ecki@...a.inka.de> CC: linux-kernel@...r.kernel.org Subject: Re: do_coredump and O_NOFOLLOW Bernd Eckenfels wrote: > In article <46C290F6.2090309@...atel-lucent.com> you wrote: > >> I found that O_NOFOLLOW is used for opened core file in Linux 2.6.10. >> > > I think that is for security reasons, otherwise one has to (atomically) > check who is the owner of the symlink and where it points to. If you dont > have hostile users on your system you might be able to remove it, but it is > not a good idea in the general public. > > Maybe we need a coreadm tool like Solaris has, where you can put the > corefiles where you want. That would change the corepattern to include a > path and be specific to a process (tree). > > Gruss > Bernd > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > Bernd, Thanks for your reply. I don't think there are any hostile users on the system. So it's relatively of security. I didn't hear of coreadm tool before, Linux will become more powerful with coreadm. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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