Nathan Claudel d0038b70df bdev: fix use-after-free in bdev registration ... When a bdev is registered, it is examined by the bdev modules before the bdev register even is notified. Examination may be asychronous, e.g. when the bdev module has to perform I/O on the new bdev. This causes a race condition where the bdev might be destroyed while examination is not finished. Then, once all modules have signaled that examination is done, `bdev_register_finished` makes an invalid access to the freed bdev pointer. To fix this, defer the unregistration until the examine is completed by opening a descriptor on the bdev. Change-Id: I79a2faa96c1c893fc1cee645fbe31f689b03ea4a Signed-off-by: Nathan Claudel <nclaudel@kalray.eu> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13630 Community-CI: Mellanox Build Bot Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>		2022-07-22 06:40:10 +00:00
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bdev_ut.c	bdev: fix use-after-free in bdev registration	2022-07-22 06:40:10 +00:00
Makefile	Replace most BSD 3-clause license text with SPDX identifier.	2022-06-09 07:35:12 +00:00