From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Maurizio Lombardi <mlombard@redhat.com>,
Sagi Grimberg <sagi@grimberg.me>,
Chaitanya Kulkarni <kch@nvidia.com>,
Christoph Hellwig <hch@lst.de>, Sasha Levin <sashal@kernel.org>,
kbusch@kernel.org, axboe@fb.com, linux-nvme@lists.infradead.org
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 [thread overview]
Message-ID: <20211130144707.944580-46-sashal@kernel.org> (raw)
In-Reply-To: <20211130144707.944580-1-sashal@kernel.org>
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
next prev parent reply other threads:[~2021-11-30 14:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20211130144707.944580-1-sashal@kernel.org>
2021-11-30 14:46 ` [PATCH AUTOSEL 5.15 40/68] nvmet-tcp: fix a race condition between release_queue and io_work Sasha Levin
2021-11-30 14:46 ` [PATCH AUTOSEL 5.15 41/68] nvmet-tcp: add an helper to free the cmd buffers Sasha Levin
2021-11-30 14:46 ` [PATCH AUTOSEL 5.15 42/68] nvmet-tcp: fix memory leak when performing a controller reset Sasha Levin
2021-11-30 14:46 ` [PATCH AUTOSEL 5.15 43/68] nvme-tcp: validate R2T PDU in nvme_tcp_handle_r2t() Sasha Levin
2021-11-30 14:46 ` [PATCH AUTOSEL 5.15 44/68] nvme-tcp: fix memory leak when freeing a queue Sasha Levin
2021-11-30 14:46 ` [PATCH AUTOSEL 5.15 45/68] nvme-pci: add NO APST quirk for Kioxia device Sasha Levin
2021-11-30 14:46 ` Sasha Levin [this message]
2021-11-30 14:46 ` [PATCH AUTOSEL 5.15 47/68] nvme: fix write zeroes pi Sasha Levin
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