Notification
Risk classification
HIPER (High Impact and/or Pervasive)
Risk categories
Data Loss
Affected Domain
AIX SMB Client using oplocks and file leasing
Abstract
Potential undetected data loss can occur when copying or writing to files on an SMB share using the AIX SMB Client
Description
Potential undetected data loss can occur when copying or writing to files on an SMB share using the AIX SMB Client.
This can only occur when oplocks and file leasing are enabled in the AIX SMB Client and the SMB server returns an asynchronous STATUS_PENDING response to the AIX SMB Client during the file copy.
Data loss can occur even though the copy operation does not return an error.
Recommended Action
- Update any affected smbc.rte levels in the below table.
- Alternatively, disable oplocks and file leasing for the AIX SMB Client with:
smbctune -s smbc_oplock_enable=0 smbc_file_lease_enable=0
You can only change the value of these parameters when all SMB shares are unmounted on the AIX client system.
You can only change the value of these parameters when all SMB shares are unmounted on the AIX client system.
Affected AIX SMB Client Levels and Recommended Fixes
| Minimum Affected Level | Maximum Affected Level | Fixing Level | Fix |
|---|---|---|---|
|
smbc.rte 7.2.302.6
|
smbc.rte 7.2.302.5000
|
smbc.rte 7.2.302.5001
|
(SMB client for AIX 7.2)
|
|
smbc.rte 7.3.302.0
|
smbc.rte 7.3.302.1
|
smbc.rte 7.3.302.2
|
(SMB client for AIX 7.3)
|
This table describes which active levels are affected and where to obtain fixes.
Date first published
22 October 2024
[{"Risk Classification":"HIPER","Line of Business":{"code":"LOB08","label":"Cognitive Systems"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SWG10","label":"AIX"},"ARM Category":[{"code":"a8m0z000000cvx1AAA","label":"Communication Applications-\u003ECIFS\/SMB"}],"Platform":[{"code":"PF002","label":"AIX"}],"Version":"7.2.0;7.3.0"}]
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Document Information
Modified date:
22 October 2024
UID
ibm17166703