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Backporting of critical SMB/CIFS fix to Oracle distros

Open bharathsm-ms opened this issue 2 years ago • 1 comments

While accessing SMB shares with Linux SMB kernel client, If the number of SMB responses from server with status of STATUS_IO_TIMEOUT exceeds a specified threshold (NUM_STATUS_IO_TIMEOUT), we reconnect the connection. But we do not return the mid, or the credits returned for the mid, or reduce the number of in-flight requests. This bug could result in the server->in_flight count to go bad, and also cause a leak in the mids. Which results in undesired behavior by SMB client as flow control of SMB client depends on credits.

Bug has been fixed in mainline kernel, marked for stable kernels and also has been backported to all major distros.

Link to mainline commit: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=69cba9d3c1284e0838ae408830a02c4a063104bc

bharathsm-ms avatar Nov 30 '23 05:11 bharathsm-ms

thanks for the report, we are reviewing this

seeda avatar Jan 08 '24 19:01 seeda

Thanks for reporting and sharing the commit. Issue is now fixed in UEK-7-U2 - Fixed Ver: V5.15.0-205.149.4

https://github.com/oracle/linux-uek/commit/7ee081e349ead682f187d3699c4db63611fecd97

seeda avatar Apr 17 '24 17:04 seeda