From: Maurizio Lombardi mlombard@redhat.com
[ Upstream commit 8e8aaf512a91ae44d40647a88b51326c7b0a70a8 ]
Valid fast_io_fail_tmo values are integers >= 0 or -1 (disabled). Prevent userspace from setting arbitrary negative values.
Signed-off-by: Maurizio Lombardi mlombard@redhat.com Reviewed-by: Sagi Grimberg sagi@grimberg.me Reviewed-by: Chaitanya Kulkarni kch@nvidia.com Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/nvme/host/fabrics.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c index 668c6bb7a567f..fb5cc5d14899d 100644 --- a/drivers/nvme/host/fabrics.c +++ b/drivers/nvme/host/fabrics.c @@ -697,6 +697,9 @@ 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: