Bug 519397
| Summary: | KVM: MMU: make __kvm_mmu_free_some_pages handle empty list (upstream backport) | ||||||
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| Product: | Red Hat Enterprise Linux 5 | Reporter: | Marcelo Tosatti <mtosatti> | ||||
| Component: | kvm | Assignee: | Eduardo Habkost <ehabkost> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Lawrence Lim <llim> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | low | ||||||
| Version: | 5.5 | CC: | ieidus, lihuang, riek, tools-bugs, virt-maint, ykaul | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | kvm-83-108.el5 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2010-03-30 07:55:40 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Hi Marcelo Do we have test case for this fix ? Thanks Lijun Huang Lijun, Its not very trivial to reproduce / don't have a ready testcase. Just checking it introduces no regressions should be OK. Izik, do you agree? Yes, it would be hard to triggered This bug fix is more against malicoues usage of kvm. I belive checking against regressions should be enaougth.. Ok i will run the test. Thank you . Marcelo and Izik :) An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2010-0271.html |
Created attachment 358710 [details] KVM_MMU_make_kvm_mmu_free_some_pages_handle_empty_list.patch commit 25ed49c02cc195d437bf5832df123fe5a8583271 Author: Izik Eidus <ieidus> Date: Tue Jul 28 15:26:58 2009 -0300 KVM: MMU: make __kvm_mmu_free_some_pages handle empty list First check if the list is empty before attempting to look at list entries. Signed-off-by: Izik Eidus <ieidus> Signed-off-by: Marcelo Tosatti <mtosatti> Signed-off-by: Avi Kivity <avi>