AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/target
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Laura Abbott 679fcae46c scsi: iscsi: target: Don't use stack buffer for scatterlist 
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>
2018-09-11 20:47:08 -04:00
..
iscsi scsi: iscsi: target: Don't use stack buffer for scatterlist 2018-09-11 20:47:08 -04:00
loopback SCSI misc on 20180815 2018-08-15 22:06:26 -07:00
sbp scsi: target: srp, vscsi, sbp, qla: use target_remove_session 2018-08-02 15:29:31 -04:00
tcm_fc scsi: tcm_fc: use target_remove_session 2018-08-02 15:29:31 -04:00
Kconfig target: don't depend on SCSI 2018-08-02 15:19:49 -06:00
Makefile
target_core_alua.c
target_core_alua.h
target_core_configfs.c scsi: target: add helper to check if dev is configured 2018-07-30 23:17:53 -04:00
target_core_device.c scsi: target: add helper to check if dev is configured 2018-07-30 23:17:53 -04:00
target_core_fabric_configfs.c scsi: target: add helper to check if dev is configured 2018-07-30 23:17:53 -04:00
target_core_fabric_lib.c
target_core_file.c
target_core_file.h
target_core_hba.c
target_core_iblock.c target: convert to bioset_init()/mempool_init() 2018-05-30 15:33:32 -06:00
target_core_iblock.h target: convert to bioset_init()/mempool_init() 2018-05-30 15:33:32 -06:00
target_core_internal.h scsi: target: Fold core_tmr_handle_tas_abort() into transport_cmd_finish_abort() 2018-07-02 16:44:31 -04:00
target_core_pr.c scsi: target: Fix truncated PR-in ReadKeys response 2018-06-19 21:36:37 -04:00
target_core_pr.h
target_core_pscsi.c SCSI misc on 20180610 2018-06-10 13:01:12 -07:00
target_core_pscsi.h
target_core_rd.c
target_core_rd.h
target_core_sbc.c scsi: target: Use config_item_name() instead of open-coding it 2018-07-02 16:44:30 -04:00
target_core_spc.c
target_core_stat.c
target_core_tmr.c scsi: target: Fold core_tmr_handle_tas_abort() into transport_cmd_finish_abort() 2018-07-02 16:44:31 -04:00
target_core_tpg.c
target_core_transport.c scsi: target: add session removal function 2018-08-02 15:29:31 -04:00
target_core_ua.c scsi: target: Remove se_dev_entry.ua_count 2018-07-02 16:44:32 -04:00
target_core_ua.h scsi: target: Fix handling of removed LUNs 2018-07-02 16:44:32 -04:00
target_core_user.c SCSI misc on 20180815 2018-08-15 22:06:26 -07:00
target_core_xcopy.c scsi: target: Introduce transport_init_session() 2018-07-02 16:44:31 -04:00
target_core_xcopy.h