| From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.15 46/68] nvme-fabrics: ignore invalid fast_io_fail_tmo values | Date | Tue, 30 Nov 2021 09:46:42 -0500 |
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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: -- 2.33.0
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