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 ------ REL9_5_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/d27c18d26f00fc13401931fe9deb5012610faf89 Modified Files -------------- src/backend/storage/ipc/shm_mq.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
