Prevent shm_mq_send from reading uninitialized memory. shm_mq_send_bytes didn't invariably initialize *bytes_written before returning, which would cause shm_mq_send to read from uninitialized memory and add the value it found there to mqh->mqh_partial_bytes. This could cause the next attempt to send a message via the queue to fail an assertion (if the queue was detached) or copy data from a garbage pointer value into the queue (if non-blocking mode was in use).
Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/1144ea3421e4bcc24dd7402a1f21ba94638d591b Modified Files -------------- src/backend/storage/ipc/shm_mq.c | 7 +++++++ 1 file changed, 7 insertions(+) -- Sent via pgsql-committers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
