Bug 788260
Summary: | CVE-2011-4086 kernel: jbd2: unmapped buffer with _Unwritten or _Delay flags set can lead to DoS [fedora-all] | ||
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Product: | [Fedora] Fedora | Reporter: | Petr Matousek <pmatouse> |
Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | 15 | CC: | davej, gansalmon, itamar, jonathan, jwboyer, kernel-maint, madhu.chinakonda |
Target Milestone: | --- | Keywords: | Security, SecurityTracking |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | kernel-2.6.42.3-2.fc15 | Doc Type: | Release Note |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2012-02-10 22:00:07 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: | |||
Bug Depends On: | |||
Bug Blocks: | 749143 |
Description
Petr Matousek
2012-02-07 21:56:14 UTC
This is mostly fixed in all Fedora branches, as commit 4e96b2dbbf1d7e81f22047a50f862555a6cb87cb resolved the issue and went into the 3.2 kernel release. However, Eric posted a follow up patch to fix the root of the problem here: http://thread.gmane.org/gmane.comp.file-systems.ext4/30623 That can be applied to all branches. The above patch has been applied to all Fedora branches. kernel-2.6.42.3-2.fc15 has been submitted as an update for Fedora 15. https://admin.fedoraproject.org/updates/kernel-2.6.42.3-2.fc15 kernel-3.2.5-3.fc16 has been submitted as an update for Fedora 16. https://admin.fedoraproject.org/updates/kernel-3.2.5-3.fc16 Package kernel-3.2.5-3.fc16: * should fix your issue, * was pushed to the Fedora 16 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing kernel-3.2.5-3.fc16' as soon as you are able to, then reboot. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-1497/kernel-3.2.5-3.fc16 then log in and leave karma (feedback). kernel-3.2.5-3.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report. kernel-2.6.42.3-2.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report. |