Laura Abbott 1a5d197564 scsi: iscsi: target: Don't use stack buffer for scatterlist ... [ Upstream commit 679fcae46c ] Fedora got a bug report of a crash with iSCSI: kernel BUG at include/linux/scatterlist.h:143! ... RIP: 0010:iscsit_do_crypto_hash_buf+0x154/0x180 [iscsi_target_mod] ... Call Trace: ? iscsi_target_tx_thread+0x200/0x200 [iscsi_target_mod] iscsit_get_rx_pdu+0x4cd/0xa90 [iscsi_target_mod] ? native_sched_clock+0x3e/0xa0 ? iscsi_target_tx_thread+0x200/0x200 [iscsi_target_mod] iscsi_target_rx_thread+0x81/0xf0 [iscsi_target_mod] kthread+0x120/0x140 ? kthread_create_worker_on_cpu+0x70/0x70 ret_from_fork+0x3a/0x50 This is a BUG_ON for using a stack buffer with a scatterlist. There are two cases that trigger this bug. Switch to using a dynamically allocated buffer for one case and do not assign a NULL buffer in another case. Signed-off-by: Laura Abbott <labbott@redhat.com> Reviewed-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-10-18 09:13:20 +02:00
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iscsi	scsi: iscsi: target: Don't use stack buffer for scatterlist	2018-10-18 09:13:20 +02:00
loopback
sbp
tcm_fc
Kconfig
Makefile
target_core_alua.c	target: fix race during implicit transition work flushes	2017-12-20 10:07:26 +01:00
target_core_alua.h
target_core_configfs.c
target_core_device.c
target_core_fabric_configfs.c
target_core_fabric_lib.c
target_core_file.c	tcm_fileio: Prevent information leak for short reads	2018-03-24 11:00:20 +01:00
target_core_file.h
target_core_hba.c
target_core_iblock.c
target_core_iblock.h
target_core_internal.h
target_core_pr.c	target:fix condition return in core_pr_dump_initiator_port()	2017-12-20 10:07:29 +01:00
target_core_pr.h
target_core_pscsi.c
target_core_pscsi.h
target_core_rd.c
target_core_rd.h
target_core_sbc.c
target_core_spc.c
target_core_stat.c
target_core_tmr.c	target: Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK	2018-01-17 09:38:54 +01:00
target_core_tpg.c
target_core_transport.c	scsi: target: fix __transport_register_session locking	2018-09-19 22:47:12 +02:00
target_core_ua.c
target_core_ua.h
target_core_user.c
target_core_xcopy.c
target_core_xcopy.h