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pgsql: Fix null-pointer crash in ECPG compiler.
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* pgsql: Fix null-pointer crash in ECPG compiler.
@ 2026-06-25 20:58 Tom Lane <tgl@sss.pgh.pa.us>
  0 siblings, 0 replies; 2+ messages in thread

From: Tom Lane @ 2026-06-25 20:58 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Fix null-pointer crash in ECPG compiler.

When compiling a DECLARE section containing a union nested
inside a struct, ecpg passes a null value for struct_sizeof to
ECPGmake_struct_type.  I (tgl) didn't foresee that case in
commit 0e6060790, and wrote an unprotected mm_strdup() call.

Reported-by: iMSA (via Jehan-Guillaume de Rorthais <jgdr@dalibo.com>)
Author: Jehan-Guillaume de Rorthais <jgdr@dalibo.com>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/20260625114849.34b2148e@karst
Backpatch-through: 18

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/7f5e0b22e5eabf7b794b5059efa9454ba3616afe

Modified Files
--------------
src/interfaces/ecpg/preproc/type.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)



^ permalink  raw  reply  [nested|flat] 2+ messages in thread

* pgsql: Fix null-pointer crash in ECPG compiler.
@ 2026-06-25 20:58 Tom Lane <tgl@sss.pgh.pa.us>
  0 siblings, 0 replies; 2+ messages in thread

From: Tom Lane @ 2026-06-25 20:58 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Fix null-pointer crash in ECPG compiler.

When compiling a DECLARE section containing a union nested
inside a struct, ecpg passes a null value for struct_sizeof to
ECPGmake_struct_type.  I (tgl) didn't foresee that case in
commit 0e6060790, and wrote an unprotected mm_strdup() call.

Reported-by: iMSA (via Jehan-Guillaume de Rorthais <jgdr@dalibo.com>)
Author: Jehan-Guillaume de Rorthais <jgdr@dalibo.com>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/20260625114849.34b2148e@karst
Backpatch-through: 18

Branch
------
REL_18_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/917fdbc633e24e652427e102bf51484f3e1ab2f2

Modified Files
--------------
src/interfaces/ecpg/preproc/type.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)



^ permalink  raw  reply  [nested|flat] 2+ messages in thread


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