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linux/drivers/nvme
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Maurizio Lombardi 7957c731fc nvmet-tcp: fix kernel crash if commands allocation fails 
[ Upstream commit 5572a55a6f ]

If the commands allocation fails in nvmet_tcp_alloc_cmds()
the kernel crashes in nvmet_tcp_release_queue_work() because of
a NULL pointer dereference.

  nvmet: failed to install queue 0 cntlid 1 ret 6
  Unable to handle kernel NULL pointer dereference at
         virtual address 0000000000000008

Fix the bug by setting queue->nr_cmds to zero in case
nvmet_tcp_alloc_cmd() fails.

Fixes: 872d26a391 ("nvmet-tcp: add NVMe over TCP target driver")
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-09-12 11:10:29 +02:00
..
common treewide: use get_random_u32() when possible 2022-10-11 17:42:58 -06:00
host nvme-pci: Add sleep quirk for Samsung 990 Evo 2024-09-12 11:10:17 +02:00
target nvmet-tcp: fix kernel crash if commands allocation fails 2024-09-12 11:10:29 +02:00
Kconfig nvme: implement In-Band authentication 2022-08-02 17:14:49 -06:00
Makefile nvme: implement In-Band authentication 2022-08-02 17:14:49 -06:00