Bug 1285365
| Summary: | cp will corrupt sparse files with trailing extents | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Jan Kurik <jkurik> |
| Component: | coreutils | Assignee: | Ondrej Vasik <ovasik> |
| Status: | CLOSED ERRATA | QA Contact: | qe-baseos-daemons |
| Severity: | high | Docs Contact: | |
| Priority: | urgent | ||
| Version: | 7.2 | CC: | fkrska, jkurik, jscotka, mnavrati, ovasik, psklenar |
| Target Milestone: | rc | Keywords: | Patch, Reproducer, ZStream |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | coreutils-8.22-15.el7_2.1 | Doc Type: | Bug Fix |
| Doc Text: |
When creating sparse files, the fallocate utility could allocate extents beyond EOF using FALLOC_FL_KEEP_SIZE. As a consequence, when there was a gap (hole) between the extents, and EOF was within that gap, the final hole was not reproduced, which caused silent data corruption in the copied file due to its size being too small. With this update, the cp command ensures that extents beyond the apparent file size are not processed, as such processing and allocating is not currently supported. As a result, silent data corruption in certain type of sparse files no longer occurs.
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Story Points: | --- |
| Clone Of: | 1284906 | Environment: | |
| Last Closed: | 2016-02-16 10:24:53 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: | 1284906 | ||
| Bug Blocks: | |||
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Description
Jan Kurik
2015-11-25 13:26:13 UTC
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. https://rhn.redhat.com/errata/RHBA-2016-0177.html |