Avoid invalid alloc size error in shm_mq In shm_mq_receive(), a huge payload could trigger an unjustified "invalid memory alloc request size" error due to the way the buffer size is increased.
Add error checks (documenting the upper limit) and avoid the error by limiting the allocation size to MaxAllocSize. Author: Markus Wanner <[email protected]> Discussion: https://www.postgresql.org/message-id/flat/3bb363e7-ac04-0ac4-9fe8-db1148755bfa%402ndquadrant.com Branch ------ REL_13_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/1f53d0b9f45521a85e85b6dcab7c15a7d8b4b973 Modified Files -------------- src/backend/storage/ipc/shm_mq.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
