Opened 10 years ago
Closed 10 years ago
#14067 closed defect (fixed)
generic_graph_pyx.pyx invalid free() with MALLOC_CHECK_=3
| Reported by: | Jeroen Demeyer | Owned by: | Robert Miller |
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| Priority: | blocker | Milestone: | sage-5.7 |
| Component: | memleak | Keywords: | |
| Cc: | Jean-Pierre Flori, Simon King | Merged in: | sage-5.7.beta4 |
| Authors: | Jeroen Demeyer | Reviewers: | Jean-Pierre Flori |
| Report Upstream: | N/A | Work issues: | |
| Branch: | Commit: | ||
| Dependencies: | Stopgaps: |
Status badges
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 10 years ago by
| Cc: | Jean-Pierre Flori Simon King added |
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comment:2 Changed 10 years ago by
| Description: | modified (diff) |
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comment:3 Changed 10 years ago by
| Description: | modified (diff) |
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Changed 10 years ago by
| Attachment: | sage_crash_SHRqxx.log added |
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comment:4 Changed 10 years ago by
| Description: | modified (diff) |
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comment:5 Changed 10 years ago by
| Description: | modified (diff) |
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comment:6 Changed 10 years ago by
comment:7 Changed 10 years ago by
Got it, we are assigning self.stack[1] even if self.stack is an array with just one element.
Changed 10 years ago by
| Attachment: | 14067_invalid_free.patch added |
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comment:8 Changed 10 years ago by
| Authors: | → Jeroen Demeyer |
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| Status: | new → needs_review |
comment:9 Changed 10 years ago by
| Reviewers: | → Jean-Pierre Flori |
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| Status: | needs_review → positive_review |
Works well.
comment:10 Changed 10 years ago by
| Merged in: | → sage-5.7.beta4 |
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| Resolution: | → fixed |
| Status: | positive_review → closed |
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The problem occurs when deallocating self.stack.