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pgsql: Correctly copy the target host identification in PQcancelCreate. 3+ messages / 1 participants [nested] [flat]
* pgsql: Correctly copy the target host identification in PQcancelCreate. @ 2025-07-02 19:48 Tom Lane <tgl@sss.pgh.pa.us> 0 siblings, 0 replies; 3+ messages in thread From: Tom Lane @ 2025-07-02 19:48 UTC (permalink / raw) To: pgsql-committers@lists.postgresql.org Correctly copy the target host identification in PQcancelCreate. PQcancelCreate failed to copy struct pg_conn_host's "type" field, instead leaving it zero (a/k/a CHT_HOST_NAME). This seemingly has no great ill effects if it should have been CHT_UNIX_SOCKET instead, but if it should have been CHT_HOST_ADDRESS then a null-pointer dereference will occur when the cancelConn is used. Bug: #18974 Reported-by: Maxim Boguk <maxim.boguk@gmail.com> Author: Sergei Kornilov <sk@zsrv.org> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://postgr.es/m/18974-575f02b2168b36b3@postgresql.org Backpatch-through: 17 Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/fe05430ace8e0b3c945cf581564458a5983a07b6 Modified Files -------------- src/interfaces/libpq/fe-cancel.c | 1 + 1 file changed, 1 insertion(+) ^ permalink raw reply [nested|flat] 3+ messages in thread
* pgsql: Correctly copy the target host identification in PQcancelCreate. @ 2025-07-02 19:48 Tom Lane <tgl@sss.pgh.pa.us> 0 siblings, 0 replies; 3+ messages in thread From: Tom Lane @ 2025-07-02 19:48 UTC (permalink / raw) To: pgsql-committers@lists.postgresql.org Correctly copy the target host identification in PQcancelCreate. PQcancelCreate failed to copy struct pg_conn_host's "type" field, instead leaving it zero (a/k/a CHT_HOST_NAME). This seemingly has no great ill effects if it should have been CHT_UNIX_SOCKET instead, but if it should have been CHT_HOST_ADDRESS then a null-pointer dereference will occur when the cancelConn is used. Bug: #18974 Reported-by: Maxim Boguk <maxim.boguk@gmail.com> Author: Sergei Kornilov <sk@zsrv.org> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://postgr.es/m/18974-575f02b2168b36b3@postgresql.org Backpatch-through: 17 Branch ------ REL_18_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/5d0800000ed5e4fb5ed010bb4b93f966e08b9fb3 Modified Files -------------- src/interfaces/libpq/fe-cancel.c | 1 + 1 file changed, 1 insertion(+) ^ permalink raw reply [nested|flat] 3+ messages in thread
* pgsql: Correctly copy the target host identification in PQcancelCreate. @ 2025-07-02 19:48 Tom Lane <tgl@sss.pgh.pa.us> 0 siblings, 0 replies; 3+ messages in thread From: Tom Lane @ 2025-07-02 19:48 UTC (permalink / raw) To: pgsql-committers@lists.postgresql.org Correctly copy the target host identification in PQcancelCreate. PQcancelCreate failed to copy struct pg_conn_host's "type" field, instead leaving it zero (a/k/a CHT_HOST_NAME). This seemingly has no great ill effects if it should have been CHT_UNIX_SOCKET instead, but if it should have been CHT_HOST_ADDRESS then a null-pointer dereference will occur when the cancelConn is used. Bug: #18974 Reported-by: Maxim Boguk <maxim.boguk@gmail.com> Author: Sergei Kornilov <sk@zsrv.org> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://postgr.es/m/18974-575f02b2168b36b3@postgresql.org Backpatch-through: 17 Branch ------ REL_17_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/445bd37b19c297b56a7e3b24a69b3648918d2c31 Modified Files -------------- src/interfaces/libpq/fe-cancel.c | 1 + 1 file changed, 1 insertion(+) ^ permalink raw reply [nested|flat] 3+ messages in thread
end of thread, other threads:[~2025-07-02 19:48 UTC | newest] Thread overview: 3+ messages (download: mbox mbox.gz follow: Atom feed) -- links below jump to the message on this page -- 2025-07-02 19:48 pgsql: Correctly copy the target host identification in PQcancelCreate. Tom Lane <tgl@sss.pgh.pa.us> 2025-07-02 19:48 pgsql: Correctly copy the target host identification in PQcancelCreate. Tom Lane <tgl@sss.pgh.pa.us> 2025-07-02 19:48 pgsql: Correctly copy the target host identification in PQcancelCreate. Tom Lane <tgl@sss.pgh.pa.us>
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