This bug has been migrated to another issue tracking site. It has been closed here and may no longer be being monitored.

If you would like to get updates for this issue, or to participate in it, you may do so at Red Hat Issue Tracker .
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 1967668 - Don't silently truncate (SCSI) disk serial number
Summary: Don't silently truncate (SCSI) disk serial number
Keywords:
Status: CLOSED MIGRATED
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: qemu-kvm
Version: 9.0
Hardware: Unspecified
OS: Unspecified
low
low
Target Milestone: rc
: ---
Assignee: Virtualization Maintenance
QA Contact: qing.wang
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-06-03 14:56 UTC by Peter Krempa
Modified: 2023-09-13 09:08 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2023-09-13 09:08:09 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker   RHEL-3542 0 None Migrated None 2023-09-13 09:07:59 UTC

Description Peter Krempa 2021-06-03 14:56:50 UTC 
Description of problem:

Silent truncation of the serial can lead to a guest ABI regression when the limit is changed such as happened in:

commit 48b6206305b8d56524ac2ee347b68e6e0a528559
Author: Rony Weng <ronyweng>
Date:   Mon Aug 29 15:52:18 2016 +0800

    scsi-disk: change disk serial length from 20 to 36
    
    Openstack Cinder assigns volume a 36 characters uuid as serial.
    QEMU will shrinks the uuid to 20 characters, which does not match
    the original uuid.
    
    Note that there is no limit to the length of the serial number in
    the SCSI spec.  20 was copy-pasted from virtio-blk which in turn was
    copy-pasted from ATA; 36 is even more arbitrary.  However, bumping it
    up too much might cause issues (e.g. 252 seems to make sense because
    then the maximum amount of returned data is 256; but who knows there's
    no off-by-one somewhere for such a nicely rounded number).
    
    Signed-off-by: Rony Weng <ronyweng>
    Message-Id: <1472457138-23386-1-git-send-email-ronyweng>
    Cc: qemu-stable
    Signed-off-by: Paolo Bonzini <pbonzini>

or alternatively when libvirt started using 'device_id' in addition to 'serial' which has a different truncation length.

Rather than silently truncating, qemu should reject values which would lead to truncation (ideally after fixing truncation limits: https://bugzilla.redhat.com/show_bug.cgi?id=1967666 ).

Libvirt will be okay with using an additional property to enable the feature or to allow querying of the truncation limit.
Comment 1 John Ferlan 2021-09-08 21:41:25 UTC 
Move RHEL-AV bugs to RHEL9. If necessary to resolve in RHEL8, then clone to the current RHEL8 release.
Comment 12 RHEL Program Management 2023-09-13 09:06:09 UTC 
Issue migration from Bugzilla to Jira is in process at this time. This will be the last message in Jira copied from the Bugzilla bug.
Comment 13 RHEL Program Management 2023-09-13 09:08:09 UTC 
This BZ has been automatically migrated to the issues.redhat.com Red Hat Issue Tracker. All future work related to this report will be managed there.

Due to differences in account names between systems, some fields were not replicated.  Be sure to add yourself to Jira issue's "Watchers" field to continue receiving updates and add others to the "Need Info From" field to continue requesting information.

To find the migrated issue, look in the "Links" section for a direct link to the new issue location. The issue key will have an icon of 2 footprints next to it, and begin with "RHEL-" followed by an integer.  You can also find this issue by visiting https://issues.redhat.com/issues/?jql= and searching the "Bugzilla Bug" field for this BZ's number, e.g. a search like:

"Bugzilla Bug" = 1234567

In the event you have trouble locating or viewing this issue, you can file an issue by sending mail to rh-issues. You can also visit https://access.redhat.com/articles/7032570 for general account information.
Note You need to log in before you can comment on or make changes to this bug.