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Hi! |
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On Wed, Mar 20, 2013 at 10:15:16AM +0100, PaX Team wrote: |
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> > > https://bugs.gentoo.org/show_bug.cgi?id=462430 |
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> |
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> next time add me to the bug if you expect an answer instead of spamming |
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> every possible forum. |
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Ok. |
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> nevertheless to reduce the pain i've fixed the gap accounting in that these |
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> areas are not taken into account when mmap checks RLIMIT_AS, so it should |
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> be fine now (did you even search the gentoo bugzilla or the grsec forums for |
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> similar issues? i thought so). you'll need to update to 3.8.3 though because |
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> 3.7 is no longer supported. |
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I've searched gentoo bugzilla, but not grsec forums (when I report this |
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issue I wasn't sure it's related to hardened). |
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Anyway, I've tried 3.8.3, and see no difference at all on 32-bit system: |
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|
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# uname -a |
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Linux web 3.8.3-hardened #1 SMP Wed Mar 20 15:45:48 GMT 2013 i686 Intel(R) Core(TM)2 Duo CPU E4500 @ 2.20GHz GenuineIntel GNU/Linux |
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# softlimit -m 32000000 tcpserver 0.0.0.0 11111 echo ok |
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Killed |
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kern.alert: grsec: From 127.0.0.1: denied resource overstep by requesting 189251584 for RLIMIT_AS against limit 32000000 for /usr/bin/tcpserver[tcpserver:1821] uid/euid:0/0 gid/egid:0/0, parent /bin/bash[bash:1307] uid/euid:0/0 gid/egid:0/0 |
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At same time, on 3.8.3 64-bit system tcpserver works ok under much lower |
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softlimit -m 5000000 (5MB!) without any grsec errors in log (`ps axu` |
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still show tcpserver uses up to 60MB VSZ). |
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-- |
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WBR, Alex. |
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