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Description of problem: If an attaching to qemu process fails, e.g. invalid PID was supplied, libvirtd crashes. The problem lies within qemu driver which frees uninitialized variable. Version-Release number of selected component (if applicable): libvirt-0.9.4-16.el6 How reproducible: 100% Steps to Reproduce: 1. get random number and make sure no such PID exists 2. virsh qemu-attach $PID 3. observe libvirtd SIGSEGV Actual results: the daemon crashes Expected results: an error printed (something like non-existing PID) and no deamon crash Additional info:
Moving to POST: http://post-office.corp.redhat.com/archives/rhvirt-patches/2011-October/msg00251.html
Verify this bug with libvirt-0.9.4-17.el6.x86_64 [root@5-12-r6 ~]# virsh qemu-attach 33333344 11:18:54.185: 18201: error : virFileReadAll:451 : Failed to open file '/proc/33333344/cmdline': No such file or directory error: Failed to open file '/proc/33333344/cmdline': No such file or directory [root@5-12-r6 ~]# /etc/init.d/libvirtd status libvirtd (pid 18197) is running...
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2011-1513.html