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[MDEV-29643] a potential bug of NPD Created: 2022-09-27 Updated: 2022-09-27 Resolved: 2022-09-27 |
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| Status: | Closed |
| Project: | MariaDB Server |
| Component/s: | Storage Engine - Mroonga |
| Affects Version/s: | 10.9.3 |
| Fix Version/s: | N/A |
| Type: | Bug | Priority: | Critical |
| Reporter: | ash1852 | Assignee: | Kouhei Sutou |
| Resolution: | Won't Fix | Votes: | 0 |
| Labels: | None | ||
| Environment: |
ubuntu20.04 |
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| Attachments: |
image-2022-09-27-10-33-44-655.png
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| Description |
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Hi, I found a potential null pointer dereference bug in the project source code of mariadb, 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 red arrows represent the control flow,the file path can be seen in the blue framed section. would you can help to check if this bug is true?thank you for your effort and patience! |
| Comments |
| Comment by Kouhei Sutou [ 2022-09-27 ] |
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Thanks for your report. Yes. This may be happen when enough memory isn't remained. In the situation (no memory situation), we'll have other problems too. We can add a NULL check here but it will not help the situation... And this code isn't used in normal use cases. This code is for Groonga's plugin system. But, in general, Mroonga doesn't use the Groonga's plugin system. So we won't fix this. Sorry. |
| Comment by ash1852 [ 2022-09-27 ] |
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ok, thank you for your reply. |
