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I'm using grsecurity and I've experienced problems with |
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hardened-sources-3.2.6 recently. I compiled and installed the kernel the |
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day before. |
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It seems to me the kernel incorrectly detects the UID of processes, which |
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is painful for some daemons. That caused denials because of the RBAC |
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system. Booting hardened-sources-3.2.5 solves the problem. |
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I essentially experienced the problem in conjunction to the mail system. I |
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use Sendmail as an MTA and Dovecot for IMAP. The daemons couldn't perform |
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their tasks, because the kernel thought they try to do everything as root. |
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Even after change to another user (mail or dovecot). It seems the kernel |
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incorrectly recognized the change of the UID. |
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I suspect the problem is related to the security features of the kernel. |
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But I thought it would be good to inform the list about this. |
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|
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Regards: |
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Dw. |
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-- |
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dr Tóth Attila, Radiológus, 06-20-825-8057 |
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Attila Toth MD, Radiologist, +36-20-825-8057 |