Summary: | app-emulation/qemu-1.4.0 - grsec: denied resource overstep by requesting 4096 for RLIMIT_CORE against limit 0 for /usr/bin/qemu-system-x86_64 | ||
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Product: | Gentoo Linux | Reporter: | Anton Bolshakov <anton.bugs> |
Component: | Current packages | Assignee: | The Gentoo Linux Hardened Team <hardened> |
Status: | RESOLVED DUPLICATE | ||
Severity: | normal | CC: | qemu+disabled |
Priority: | Normal | ||
Version: | 10.1 | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Package list: | Runtime testing required: | --- | |
Attachments: | strace -f log |
Description
Anton Bolshakov
2013-05-24 04:20:37 UTC
Over to hardened for their opinions and decoding. Well, that is usually caused by a crash, not really specific to hardened. Anything show up in dmesg other then that? If not then I imagine that it was just a internal crash of the program (not caused by grsec/pax). This is the only message in the dmesg. I'd suggest to stabilize that version sooner. (In reply to Anton Bolshakov from comment #3) > This is the only message in the dmesg. I'd suggest to stabilize that version > sooner. Matt's right. The hardened kernel simply reports RLIMIT_* overstepping, but it is not the cause of it. In this case qemu wanted to dump a core which is bigger than 0 bytes (surprise!) and grsec reported it. The question is what cause the crash. Can you post an strace -f. (In reply to Anthony Basile from comment #4) > The question is what cause the crash. Can you post an strace -f. Pardon me for asking, but why you are willing to waste time on that? Are you going to backport a patch from 1.4.1? Found an error message in the aqemu error log window: qemu-system-x86_64: /var/tmp/portage/app-emulation/qemu-1.4.0-r1/work/qemu-1.4.0/block.c:1233: bdrv_drain_all: Assertion `((&bs->tracked_requests)->lh_first == ((void *)0))' failed. Created attachment 349514 [details]
strace -f log
the last 1000 lines for 140Mb file
(In reply to Anton Bolshakov from comment #5) > (In reply to Anthony Basile from comment #4) > > The question is what cause the crash. Can you post an strace -f. > > > Pardon me for asking, but why you are willing to waste time on that? Are you > going to backport a patch from 1.4.1? No, to confirm it is not a hardened issue, eg an rwx mmap killed by pax. Now I can more confidently say to the qemu team, consider stabilizing 1.4.1. (In reply to Anthony Basile from comment #8) > (In reply to Anton Bolshakov from comment #5) > > (In reply to Anthony Basile from comment #4) > > > The question is what cause the crash. Can you post an strace -f. > > > > > > Pardon me for asking, but why you are willing to waste time on that? Are you > > going to backport a patch from 1.4.1? > > No, to confirm it is not a hardened issue, eg an rwx mmap killed by pax. > Now I can more confidently say to the qemu team, consider stabilizing 1.4.1. That's already part of bug #466092. So not sure if you want to close this as fixed in tree. sure, closing as dup! *** This bug has been marked as a duplicate of bug 466092 *** |