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_10_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/f78ebbe68f48b7bb4fe8e23b5a30c32dfc452331 Modified Files -------------- src/backend/storage/ipc/shm_mq.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
