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nvmet-fc: hold reference on hostport match

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[ Upstream commit ca121a0f7515591dba0eb5532bfa7ace4dc153ce ]

The hostport data structure is shared between the association, this why
we keep track of the users via a refcount. So we should not decrement
the refcount on a match and free the hostport several times.

Reported by KASAN.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Daniel Wagner
2024-01-31 09:51:06 +01:00
committed by Greg Kroah-Hartman
parent b833811668
commit 67e2ddf232
1 changed files with 0 additions and 2 deletions
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2
drivers/nvme/target/fc.c
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@@ -1069,8 +1069,6 @@ nvmet_fc_alloc_hostport(struct nvmet_fc_tgtport *tgtport, void *hosthandle)
/* new allocation not needed */ /* new allocation not needed */
kfree(newhost); kfree(newhost);
newhost = match; newhost = match;
/* no new allocation - release reference */
nvmet_fc_tgtport_put(tgtport);
} else { } else {
newhost->tgtport = tgtport; newhost->tgtport = tgtport;
newhost->hosthandle = hosthandle; newhost->hosthandle = hosthandle;