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linux/drivers/target
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Mike Christie aba1ba97e6 iscsi target: fix session creation failure handling 
commit 26abc916a8 upstream.

The problem is that iscsi_login_zero_tsih_s1 sets conn->sess early in
iscsi_login_set_conn_values. If the function fails later like when we
alloc the idr it does kfree(sess) and leaves the conn->sess pointer set.
iscsi_login_zero_tsih_s1 then returns -Exyz and we then call
iscsi_target_login_sess_out and access the freed memory.

This patch has iscsi_login_zero_tsih_s1 either completely setup the
session or completely tear it down, so later in
iscsi_target_login_sess_out we can just check for it being set to the
connection.

Cc: stable@vger.kernel.org
Fixes: 0957627a99 ("iscsi-target: Fix sess allocation leak in...")
Signed-off-by: Mike Christie <mchristi@redhat.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05 09:18:40 +02:00
..
iscsi iscsi target: fix session creation failure handling 2018-09-05 09:18:40 +02:00
loopback SCSI misc on 20151113 2015-11-13 20:35:54 -08:00
sbp target: use per-attribute show and store methods 2015-10-13 22:17:49 -07:00
tcm_fc target: use per-attribute show and store methods 2015-10-13 22:17:49 -07:00
Kconfig target: Put TCMU under a new config option 2015-04-19 22:41:12 -07:00
Makefile target: Put TCMU under a new config option 2015-04-19 22:41:12 -07:00
target_core_alua.c target: fix race during implicit transition work flushes 2017-12-20 10:04:57 +01:00
target_core_alua.h target: Subsume se_port + t10_alua_tg_pt_gp_member into se_lun 2015-06-01 00:26:38 -07:00
target_core_configfs.c target: use per-attribute show and store methods 2015-10-13 22:17:49 -07:00
target_core_device.c target: Fix NULL dereference during LUN lookup + active I/O shutdown 2017-03-15 09:57:14 +08:00
target_core_fabric_configfs.c target: Avoid mappedlun symlink creation during lun shutdown 2017-08-11 09:08:49 -07:00
target_core_fabric_lib.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-07-04 14:13:43 -07:00
target_core_file.c tcm_fileio: Prevent information leak for short reads 2018-03-24 10:58:45 +01:00
target_core_file.h target/file: Remove fd_prot bounce buffer 2015-05-30 22:41:42 -07:00
target_core_hba.c target: Fix target_sense_desc_format NULL pointer dereference 2015-09-24 23:17:23 -07:00
target_core_iblock.c target: Fix max_unmap_lba_count calc overflow 2016-08-20 18:09:26 +02:00
target_core_iblock.h target: kill struct se_subsystem_dev 2012-11-06 20:55:43 -08:00
target_core_internal.h target: Fix kref->refcount underflow in transport_cmd_finish_abort 2017-06-29 12:48:51 +02:00
target_core_pr.c target:fix condition return in core_pr_dump_initiator_port() 2017-12-20 10:04:58 +01:00
target_core_pr.h target: use 64-bit LUNs 2015-06-15 23:26:01 -07:00
target_core_pscsi.c target/pscsi: Fix TYPE_TAPE + TYPE_MEDIMUM_CHANGER export 2017-03-26 12:13:19 +02:00
target_core_pscsi.h SCSI misc on 20150622 2015-06-23 15:55:44 -07:00
target_core_rd.c Merge branch 'for-4.3/sg' of git://git.kernel.dk/linux-block 2015-09-02 13:22:38 -07:00
target_core_rd.h target/rd: Add support for protection SGL setup + release 2014-01-19 02:22:05 +00:00
target_core_sbc.c target: Fix compare_and_write_callback handling for non GOOD status 2017-05-20 14:26:58 +02:00
target_core_spc.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-09-11 19:00:42 -07:00
target_core_stat.c target/stat: print full t10_wwn.model buffer 2015-11-28 21:23:13 -08:00
target_core_tmr.c target: Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK 2018-01-17 09:35:31 +01:00
target_core_tpg.c target: Fix node_acl demo-mode + uncached dynamic shutdown regression 2017-11-18 11:11:07 +01:00
target_core_transport.c target: Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK 2018-01-17 09:35:31 +01:00
target_core_ua.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-07-04 14:13:43 -07:00
target_core_ua.h target: Send UA when changing LUN inventory 2015-06-23 00:43:02 -07:00
target_core_user.c target/user: Fix cast from pointer to phys_addr_t 2018-02-25 11:03:46 +01:00
target_core_xcopy.c target: Use correct SCSI status during EXTENDED_COPY exception 2017-02-14 15:22:51 -08:00
target_core_xcopy.h target: Add support for EXTENDED_COPY copy offload emulation 2013-09-10 16:48:43 -07:00