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lvol: do not reference blob after closing it

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Once an lvol's blob is closed, the lvol should not retain a reference.
Dereferencing lvol->blob could result in a use after free.

Signed-off-by: Mike Gerdts <mgerdts@nvidia.com>
Change-Id: Ia96a5a488fc96d642aa4cde83c6efa5cff88b068
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16426
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Mike Gerdts 2023-01-17 10:12:48 -06:00 committed by Jim Harris
parent ae0b53b1b6
commit 76f4b9cbdf
1 changed files with 1 additions and 0 deletions
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lib/lvol/lvol.c
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@ -979,6 +979,7 @@ lvol_close_blob_cb(void *cb_arg, int lvolerrno)
lvol->ref_count--;
lvol->action_in_progress = false;
lvol->blob = NULL;
SPDK_INFOLOG(lvol, "Lvol %s closed\n", lvol->unique_id);
end: