Opened 7 years ago
Closed 7 years ago
#14067 closed defect (fixed)
generic_graph_pyx.pyx invalid free() with MALLOC_CHECK_=3
| Reported by: | jdemeyer | Owned by: | rlm |
|---|---|---|---|
| Priority: | blocker | Milestone: | sage-5.7 |
| Component: | memleak | Keywords: | |
| Cc: | jpflori, SimonKing | Merged in: | sage-5.7.beta4 |
| Authors: | Jeroen Demeyer | Reviewers: | Jean-Pierre Flori |
| Report Upstream: | N/A | Work issues: | |
| Branch: | Commit: | ||
| Dependencies: | Stopgaps: |
Description (last modified by )
$ env MALLOC_CHECK_=3 ./sage -c 'from sage.graphs.generic_graph_pyx import SubgraphSearch; SubgraphSearch(Graph(5),Graph(1))' *** glibc detected *** python: free(): invalid pointer: 0x00000000030838e0 ***
Crash log: sage_crash_SHRqxx.log
Attachments (2)
Change History (12)
comment:1 Changed 7 years ago by
- Cc jpflori SimonKing added
comment:2 Changed 7 years ago by
- Description modified (diff)
comment:3 Changed 7 years ago by
- Description modified (diff)
Changed 7 years ago by
comment:4 Changed 7 years ago by
- Description modified (diff)
comment:5 Changed 7 years ago by
- Description modified (diff)
comment:6 Changed 7 years ago by
comment:7 Changed 7 years ago by
Got it, we are assigning self.stack[1] even if self.stack is an array with just one element.
Changed 7 years ago by
comment:8 Changed 7 years ago by
- Status changed from new to needs_review
comment:9 Changed 7 years ago by
- Reviewers set to Jean-Pierre Flori
- Status changed from needs_review to positive_review
Works well.
comment:10 Changed 7 years ago by
- Merged in set to sage-5.7.beta4
- Resolution set to fixed
- Status changed from positive_review to closed
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The problem occurs when deallocating self.stack.