Bug 1452752 - Some block drivers incorrectly close their associated file
Summary: Some block drivers incorrectly close their associated file
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm-rhev
Version: 7.4
Hardware: All
OS: All
Target Milestone: rc
: ---
Assignee: Hanna Reitz
QA Contact: Ping Li
Depends On:
TreeView+ depends on / blocked
Reported: 2017-05-19 14:39 UTC by Hanna Reitz
Modified: 2017-08-02 04:41 UTC (History)
8 users (show)

Fixed In Version: qemu-kvm-rhev-2.9.0-6.el7
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2017-08-02 04:41:00 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2392 0 normal SHIPPED_LIVE Important: qemu-kvm-rhev security, bug fix, and enhancement update 2017-08-01 20:04:36 UTC

Description Hanna Reitz 2017-05-19 14:39:33 UTC
Description of problem:

Some block drivers (namely blkdebug, blkverify, blkreplay) sometiems close their assocated file node if an error occurs during initialization. This is unnecessary, and the way this is done is incorrect, leading to potentially invalid memory accesses.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:

$ qemu-img info --image-opts driver=blkdebug,image.driver=null-co,align=42

Actual results:

[1]    23725 segmentation fault (core dumped)  qemu-img info --image-opts driver=blkdebug,image.driver=null-co,align=42

Expected results:

qemu-img: Could not open 'driver=blkdebug,image.driver=null-co,align=42': Invalid alignment

Additional info:

Fixed in upstream commit de234897b60e034ba94b307fc289e2dc692c9251.

Comment 2 Miroslav Rezanina 2017-05-23 08:16:59 UTC
Fix included in qemu-kvm-rhev-2.9.0-6.el7

Comment 4 Ping Li 2017-05-24 03:39:58 UTC
Verified the issue with below packages:

Test steps:
# qemu-img info --image-opts driver=blkdebug,image.driver=null-co,align=42
qemu-img: Could not open 'driver=blkdebug,image.driver=null-co,align=42': Invalid alignment

Comment 6 errata-xmlrpc 2017-08-02 04:41:00 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.


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