[MDEV-29879] a potential bug of NPD Created: 2022-10-26  Updated: 2022-10-26  Resolved: 2022-10-26

Status: Closed
Project: MariaDB Server
Component/s: Storage Engine - Federated
Affects Version/s: 10.11.0
Fix Version/s: N/A

Type: Bug Priority: Major
Reporter: ash1852 Assignee: Sergei Golubchik
Resolution: Not a Bug Votes: 0
Labels: bug
Environment:

ubuntu20.04


Attachments: PNG File image-2022-10-26-14-41-16-219.png    
Issue Links:
Relates
relates to MDEV-29881 a potential bug of NPD Open

 Description   

Hi, I found a potential null pointer dereference bug in the project source code, and I have shown the execution sequence of the program that may generate the bug on the graph below. The red text illustrates the steps that generate the bug, the file path can be seen in the blue framed section.

Although the code shown is for version 10.3 but is still exist in current version

would you can help to check if this bug is true?thank you for your effort and patience!



 Comments   
Comment by Sergei Golubchik [ 2022-10-26 ]

The bug may or may not be exist, but it's impossible to tell from the analysis.
The analysis is invalid, because ha_federatedx.cc is never linked with libmariadb.

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