From 8e8aaf512a91ae44d40647a88b51326c7b0a70a8 Mon Sep 17 00:00:00 2001 From: Maurizio Lombardi Date: Fri, 12 Nov 2021 15:16:12 +0100 Subject: nvme-fabrics: ignore invalid fast_io_fail_tmo values Valid fast_io_fail_tmo values are integers >= 0 or -1 (disabled). Prevent userspace from setting arbitrary negative values. Signed-off-by: Maurizio Lombardi Reviewed-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig --- drivers/nvme/host/fabrics.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/nvme/host/fabrics.c') diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c index c5a2b71c5268..282d54117e0a 100644 --- a/drivers/nvme/host/fabrics.c +++ b/drivers/nvme/host/fabrics.c @@ -698,6 +698,9 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, if (token >= 0) pr_warn("I/O fail on reconnect controller after %d sec\n", token); + else + token = -1; + opts->fast_io_fail_tmo = token; break; case NVMF_OPT_HOSTNQN: -- cgit v1.2.3