The driver has a lot of quality issues due to the lack of RDMA-side review, and explicitly bypasses APIs to register all memory once a connection is made, and thus allows remote access to memoery. Mark it as broken until at least that part is fixed. Signed-off-by: Christoph Hellwig <hch@xxxxxx> Cc: stable@xxxxxxxxxxxxxxx --- net/smc/Kconfig | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/smc/Kconfig b/net/smc/Kconfig index c717ef0896aa..fe6b78bc515f 100644 --- a/net/smc/Kconfig +++ b/net/smc/Kconfig @@ -1,6 +1,6 @@ config SMC tristate "SMC socket protocol family" - depends on INET && INFINIBAND + depends on INET && INFINIBAND && BROKEN ---help--- SMC-R provides a "sockets over RDMA" solution making use of RDMA over Converged Ethernet (RoCE) technology to upgrade @@ -8,6 +8,10 @@ config SMC The Linux implementation of the SMC-R solution is designed as a separate socket family SMC. + Warning: SMC will expose all memory for remote reads and writes + once a connection is established. Don't enable this option except + for tightly controlled lab environment. + Select this option if you want to run SMC socket applications config SMC_DIAG -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
