gregfelice commented on issue #2507:
URL: https://github.com/apache/age/issues/2507#issuecomment-5369735075
Confirmed still crashing on current master (`4d9b2506`, AGE 1.8.0,
PostgreSQL 18.4).
Backtrace at the fault:
```
#0 0x000055a181fc02ed in CheckExprStillValid ()
#1 0x000055a181fc03df in ExecInterpExprStillValid ()
#2 0x000055a181ffd089 in ?? ()
#3 0x000055a181fdc72c in ?? ()
```
This faults in PostgreSQL's `CheckExprStillValid` /
`ExecInterpExprStillValid`, i.e. inside expression evaluation rather than in
AGE's create path, consistent with a correlated `EXISTS { }` subquery
expression tree being reused after it is no longer valid.
For context: I triaged the current fuzz-report backlog against master today.
There are six *distinct* crash sites in it, not one — the largest group is five
issues (#2501, #2508, #2527, #2530, #2535) that all share a single NULL
dereference in `create_vertex`, written up in #2535. **This issue is not part
of that group**; it is its own defect and needs its own fix.
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