Damien Le MoalandGreg Kroah-Hartman a6317235da nvmet: avoid potential UAF in nvmet_req_complete() ...

[ Upstream commit 6173a77b7e ]

An nvme target ->queue_response() operation implementation may free the
request passed as argument. Such implementation potentially could result
in a use after free of the request pointer when percpu_ref_put() is
called in nvmet_req_complete().

Avoid such problem by using a local variable to save the sq pointer
before calling __nvmet_req_complete(), thus avoiding dereferencing the
req pointer after that function call.

Fixes: a07b4970f4 ("nvmet: add a generic NVMe target")
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-03-22 13:29:59 +01:00

..

admin-cmd.c

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configfs.c

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core.c

nvmet: avoid potential UAF in nvmet_req_complete()

2023-03-22 13:29:59 +01:00

discovery.c

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fabrics-cmd.c

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fc.c

nvme-fc: fix a missing queue put in nvmet_fc_ls_create_association

2023-02-22 12:55:53 +01:00

fcloop.c

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io-cmd-bdev.c

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io-cmd-file.c

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Kconfig

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loop.c

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Makefile

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nvmet.h

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passthru.c

nvmet: don't defer passthrough commands with trivial effects to the workqueue

2023-01-14 10:16:25 +01:00

rdma.c

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tcp.c

nvmet-tcp: add bounds check on Transfer Tag

2022-10-26 13:25:54 +02:00

trace.c

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trace.h

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