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Mike Christie 89812e7957 scsi: iscsi: Fix conn use after free during resets 
[ Upstream commit ec29d0ac29 ]

If we haven't done a unbind target call we can race where
iscsi_conn_teardown wakes up the EH thread and then frees the conn while
those threads are still accessing the conn ehwait.

We can only do one TMF per session so this just moves the TMF fields from
the conn to the session. We can then rely on the
iscsi_session_teardown->iscsi_remove_session->__iscsi_unbind_session call
to remove the target and it's devices, and know after that point there is
no device or scsi-ml callout trying to access the session.

Link: https://lore.kernel.org/r/20210525181821.7617-14-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-20 16:05:41 +02:00
..
fc scsi: fc: Correct RHBA attributes length 2021-07-14 16:56:52 +02:00
fc_encode.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 2019-06-05 17:37:06 +02:00
fc_frame.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 2019-06-05 17:37:06 +02:00
fcoe_sysfs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 2019-06-05 17:37:06 +02:00
iscsi_if.h scsi: iscsi: Add support for asynchronous iSCSI session destruction 2020-03-11 23:07:57 -04:00
iscsi_proto.h scsi: Revert "target: iscsi: Wait for all commands to finish before freeing a session" 2020-02-14 17:13:54 -05:00
iser.h
libfc.h scsi: libfc: Whitespace cleanup in libfc.h 2019-07-29 20:43:06 -04:00
libfcoe.h Fix misc new gcc warnings 2021-05-11 14:47:36 +02:00
libiscsi.h scsi: iscsi: Fix conn use after free during resets 2021-07-20 16:05:41 +02:00
libiscsi_tcp.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
libsas.h scsi: libsas: Introduce a _gfp() variant of event notifiers 2021-03-25 09:04:11 +01:00
sas.h scsi: libsas: Replace zero-length array with flexible-array 2020-05-11 22:26:32 -04:00
sas_ata.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
scsi.h scsi: libsas: Remove scsi_to_u32() 2019-01-29 00:46:22 -05:00
scsi_bsg_iscsi.h scsi: Replace zero-length array with flexible-array member 2020-03-11 23:07:56 -04:00
scsi_cmnd.h scsi: core: Clean up allocation and freeing of sgtables 2020-10-07 21:48:27 -04:00
scsi_common.h scsi: target: core: Add CONTROL field for trace events 2020-10-02 18:36:19 -04:00
scsi_dbg.h scsi: core: Reduce memory required for SCSI logging 2019-08-07 21:47:29 -04:00
scsi_device.h scsi: core: Only re-run queue in scsi_end_request() if device queue is busy 2020-09-15 22:20:11 -04:00
scsi_devinfo.h scsi: devinfo: BLIST_RETRY_ASC_C1 for Fujitsu ETERNUS 2018-04-20 19:14:36 -04:00
scsi_dh.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
scsi_driver.h scsi: return blk_status_t from scsi_init_io and ->init_command 2018-11-09 19:17:14 -07:00
scsi_eh.h scsi: core: save/restore command resid for error handling 2019-10-03 21:43:04 -04:00
scsi_host.h scsi: Add host and host template flag 'host_tagset' 2020-10-06 08:33:44 -06:00
scsi_ioctl.h scsi: Replace zero-length array with flexible-array member 2020-03-11 23:07:56 -04:00
scsi_proto.h scsi: core: Add VENDOR_SPECIFIC sense code definitions 2018-01-22 20:04:02 -05:00
scsi_request.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsi_tcq.h scsi: core: Only return started requests from scsi_host_find_tag() 2020-07-24 22:09:56 -04:00
scsi_transport.h SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
scsi_transport_fc.h scsi: fc: Add 256GBit speed setting to SCSI FC transport 2020-09-02 22:49:07 -04:00
scsi_transport_iscsi.h scsi: iscsi: Add iscsi_cls_conn refcount helpers 2021-07-20 16:05:41 +02:00
scsi_transport_sas.h scsi: libsas: direct call probe and destruct 2018-01-10 23:24:02 -05:00
scsi_transport_spi.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
scsi_transport_srp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsicam.h scsi: simplify scsi_partsize 2020-03-24 07:57:07 -06:00
sg.h scsi: docs: convert scsi-generic.txt to ReST 2020-03-11 23:08:02 -04:00
srp.h scsi: Replace zero-length array with flexible-array member 2020-03-11 23:07:56 -04:00
viosrp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00