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linux-stable/drivers/scsi
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Michael Schmitz c4a0f567e6 scsi: core: Handle drivers which set sg_tablesize to zero 
commit 9393c8de62 upstream.

In scsi_mq_setup_tags(), cmd_size is calculated based on zero size for the
scatter-gather list in case the low level driver uses SG_NONE in its host
template.

cmd_size is passed on to the block layer for calculation of the request
size, and we've seen NULL pointer dereference errors from the block layer
in drivers where SG_NONE is used and a mq IO scheduler is active,
apparently as a consequence of this (see commit 68ab2d76e4 ("scsi:
cxlflash: Set sg_tablesize to 1 instead of SG_NONE"), and a recent patch by
Finn Thain converting the three m68k NFR5380 drivers to avoid setting
SG_NONE).

Try to avoid these errors by accounting for at least one sg list entry when
calculating cmd_size, regardless of whether the low level driver set a zero
sg_tablesize.

Tested on 030 m68k with the atari_scsi driver - setting sg_tablesize to
SG_NONE no longer results in a crash when loading this driver.

CC: Finn Thain <fthain@telegraphics.com.au>
Link: https://lore.kernel.org/r/1572922150-4358-1-git-send-email-schmitzmic@gmail.com
Signed-off-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-20 18:45:10 +01:00
..
aacraid scsi: aacraid: Insure we don't access PCIe space during AER/EEH 2019-05-04 09:20:20 +02:00
aic7xxx scsi: aic7xxx: fix EISA support 2019-05-16 19:41:23 +02:00
aic94xx scsi: aic94xx: fix module loading 2019-02-12 19:47:25 +01:00
arcmsr scsi: arcmsr: Update driver version to v1.40.00.09-20180709 2018-07-12 22:34:59 -04:00
arm treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
be2iscsi scsi: be2iscsi: Update copyright 2018-06-19 22:02:25 -04:00
bfa scsi: bfa: remove ScsiResult macro 2018-07-10 22:42:47 -04:00
bnx2fc scsi: bnx2fc: fix incorrect cast to u64 on shift operation 2019-06-19 08:18:03 +02:00
bnx2i scsi: bnx2i: add error handling for ioremap_nocache 2018-06-19 22:02:25 -04:00
csiostor scsi: csiostor: fix missing data copy in csio_scsi_err_handler() 2019-05-10 17:54:09 +02:00
cxgbi scsi: libcxgbi: add a check for NULL pointer in cxgbi_check_route() 2019-06-22 08:15:20 +02:00
cxlflash scsi: cxlflash: Prevent deadlock when adapter probe fails 2019-02-12 19:47:25 +01:00
device_handler scsi: scsi_dh_alua: handle RTPG sense code correctly during state transitions 2019-11-10 11:27:20 +01:00
dpt
esas2r treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
fcoe scsi: fcoe: Embed fc_rport_priv in fcoe_rport structure 2019-08-09 17:52:27 +02:00
fnic treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
hisi_sas scsi: hisi_sas: Fix a timeout race of driver internal and SMP IO 2019-04-05 22:32:57 +02:00
ibmvscsi scsi: ibmvfc: fix WARN_ON during event pool release 2019-08-16 10:12:49 +02:00
ibmvscsi_tgt scsi: ibmvscsis: Ensure partition name is properly NUL terminated 2018-09-17 02:50:37 -04:00
isci scsi: isci: initialize shost fully before calling scsi_add_host() 2019-02-27 10:08:53 +01:00
libfc scsi: fcoe: Embed fc_rport_priv in fcoe_rport structure 2019-08-09 17:52:27 +02:00
libsas scsi: libsas: delete sas port if expander discover failed 2019-06-22 08:15:21 +02:00
lpfc scsi: lpfc: Honor module parameter lpfc_use_adisc 2019-11-12 19:20:59 +01:00
megaraid scsi: megaraid_sas: Use 63-bit DMA addressing 2019-09-16 08:22:00 +02:00
mpt3sas scsi: mpt3sas: Use 63-bit DMA addressing on SAS35 HBA 2019-08-06 19:06:57 +02:00
mvsas scsi: mvsas: fix wrong endianness of sgpio api 2018-03-01 21:07:48 -05:00
osd osd: Convert to new IDA API 2018-08-21 23:54:17 -04:00
pcmcia scsi: remove the fdomain and fdomain_cs drivers 2018-03-19 22:54:47 -04:00
pm8001 treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
qedf scsi: qedf: Add missing return in qedf_post_io_req() in the fcport offload check 2019-05-31 06:46:29 -07:00
qedi scsi: qedi: Check targetname while finding boot target information 2019-07-14 08:11:15 +02:00
qla2xxx scsi: qla2xxx: stop timer in shutdown path 2019-11-12 19:21:10 +01:00
qla4xxx scsi: qla4xxx: avoid freeing unallocated dma memory 2019-05-31 06:46:30 -07:00
smartpqi scsi: smartpqi: unlock on error in pqi_submit_raid_request_synchronous() 2019-06-25 11:35:58 +08:00
snic scsi: snic: fix printing time intervals 2018-07-12 23:01:16 -04:00
sym53c8xx_2 scsi: sym53c8xx: remove some redundant variables 2018-08-02 16:23:26 -04:00
ufs scsi: ufs: skip shutdown if hba is not powered 2019-10-29 09:19:29 +01:00
.gitignore scsi: scsi_devinfo: Add scsi_devinfo_tbl.c 2017-10-25 05:40:22 -04:00
3w-9xxx.c scsi: 3ware: fix return 0 on the error path of probe 2018-07-30 23:17:53 -04:00
3w-9xxx.h scsi: 3w-9xxx: rework lock timeouts 2017-12-04 20:32:53 -05:00
3w-sas.c scsi: 3ware: fix return 0 on the error path of probe 2018-07-30 23:17:53 -04:00
3w-sas.h
3w-xxxx.c scsi: 3ware: fix return 0 on the error path of probe 2018-07-30 23:17:53 -04:00
3w-xxxx.h
53c700.c scsi: 53c700: pass correct "dev" to dma_alloc_attrs() 2019-03-13 14:02:31 -07:00
53c700.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
53c700.scr
53c700_d.h_shipped
a100u2w.c scsi: a100u2w: Replace mdelay() with msleep() 2018-07-30 23:17:53 -04:00
a100u2w.h
a2091.c scsi: drop bus reset for wd33c93-compatible boards 2017-08-25 17:21:10 -04:00
a2091.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
a3000.c scsi: drop bus reset for wd33c93-compatible boards 2017-08-25 17:21:10 -04:00
a3000.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
a4000t.c
advansys.c scsi: read host_busy via scsi_host_busy() 2018-06-26 12:53:26 -04:00
aha152x.c scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
aha152x.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
aha1542.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
aha1542.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
aha1740.c scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
aha1740.h scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
am53c974.c scsi: am53c974: Use module_pci_driver 2018-05-01 23:29:41 -04:00
atari_scsi.c scsi: NCR5380: Move bus reset to host reset 2017-08-25 17:21:11 -04:00
atp870u.c scsi: atp870u: Replace mdelay() with msleep() 2018-07-30 23:17:53 -04:00
atp870u.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
BusLogic.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
BusLogic.h
bvme6000_scsi.c
ch.c scsi: ch: Make it possible to open a ch device multiple times again 2019-10-29 09:19:50 +01:00
constants.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dc395x.c scsi: core: check for equality of result byte values 2018-06-26 12:27:06 -04:00
dc395x.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dmx3191d.c scsi: NCR5380: Move bus reset to host reset 2017-08-25 17:21:11 -04:00
dpt_i2o.c scsi: dpt_i2o: Remove VLA usage 2018-05-18 12:03:51 -04:00
dpti.h scsi: dpt_i2o: stop using scsi_unregister 2018-03-15 00:25:37 -04:00
esp_scsi.c scsi: esp_scsi: Track residual for PIO transfers 2018-11-13 11:08:32 -08:00
esp_scsi.h scsi: esp_scsi: Track residual for PIO transfers 2018-11-13 11:08:32 -08:00
FlashPoint.c
g_NCR5380.c scsi: NCR5380: Move bus reset to host reset 2017-08-25 17:21:11 -04:00
gdth.c scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
gdth.h scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
gdth_ioctl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gdth_proc.c scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
gdth_proc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gvp11.c scsi: drop bus reset for wd33c93-compatible boards 2017-08-25 17:21:10 -04:00
gvp11.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hosts.c Revert "scsi: core: avoid host-wide host_busy counter for scsi_mq" 2018-08-27 13:17:00 -04:00
hpsa.c scsi: hpsa: correct scsi command status issue after reset 2019-08-25 10:47:54 +02:00
hpsa.h scsi: hpsa: correct enclosure sas address 2018-07-10 22:25:03 -04:00
hpsa_cmd.h scsi: hpsa: correct ioaccel2 chaining 2019-07-10 09:53:37 +02:00
hptiop.c scsi: hptiop: Simplify reset handling 2017-08-25 17:21:10 -04:00
hptiop.h
imm.c scsi: don't add scsi command result bytes 2018-06-26 12:27:07 -04:00
imm.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
initio.c
initio.h
ipr.c scsi: ipr: System hung while dlpar adding primary ipr adapter back 2018-09-21 12:35:39 -04:00
ipr.h scsi: ipr: System hung while dlpar adding primary ipr adapter back 2018-09-21 12:35:39 -04:00
ips.c scsi: ips: fix firmware timestamps for 32-bit 2018-04-20 19:40:17 -04:00
ips.h scsi: ips: fix firmware timestamps for 32-bit 2018-04-20 19:40:17 -04:00
iscsi_boot_sysfs.c
iscsi_tcp.c scsi: iscsi_tcp: don't set a bounce limit 2018-04-19 00:00:44 -04:00
iscsi_tcp.h
jazz_esp.c scsi: jazz_esp, sun3x_esp: Pass struct device pointer in dma calls 2018-03-12 22:05:43 -04:00
Kconfig scsi: fix kconfig dependency warning related to 53C700_LE_ON_BE 2019-11-10 11:27:22 +01:00
lasi700.c
libiscsi.c scsi: libiscsi: Fix race between iscsi_xmit_task and iscsi_complete_task 2019-03-23 20:09:48 +01:00
libiscsi_tcp.c scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
mac53c94.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
mac53c94.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mac_esp.c scsi: esp_scsi: Track residual for PIO transfers 2018-11-13 11:08:32 -08:00
mac_scsi.c scsi: mac_scsi: Fix pseudo DMA implementation, take 2 2019-07-26 09:14:19 +02:00
Makefile SCSI misc on 20180815 2018-08-15 22:06:26 -07:00
megaraid.c scsi: megaraid: disable device when probe failed after enabled device 2019-10-29 09:19:29 +01:00
megaraid.h scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
mesh.c scsi: don't add scsi command result bytes 2018-06-26 12:27:07 -04:00
mesh.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mvme16x_scsi.c
mvme147.c scsi: mvme147: stop using scsi_module.c 2018-03-19 22:54:47 -04:00
mvme147.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mvumi.c SCSI misc on 20180610 2018-06-10 13:01:12 -07:00
mvumi.h
ncr53c8xx.c scsi: ncr53c8xx: remove ScsiResult macro 2018-07-10 22:42:47 -04:00
ncr53c8xx.h
NCR5380.c scsi: NCR5380: Always re-enable reselection interrupt 2019-07-26 09:14:18 +02:00
NCR5380.h Revert "scsi: ncr5380: Increase register polling limit" 2019-07-26 09:14:18 +02:00
nsp32.c scsi: nsp32: fix logic bug in error handling 2017-10-16 22:38:44 -04:00
nsp32.h
nsp32_debug.c scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
nsp32_io.h
osst.c treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
osst.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
osst_detect.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
osst_options.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pmcraid.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
pmcraid.h scsi: pmcraid: Use sgl_alloc_order() and sgl_free_order() 2018-02-13 21:49:15 -05:00
ppa.c scsi: ppa: mark expected switch fall-throughs 2017-12-04 20:32:52 -05:00
ppa.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ps3rom.c
qla1280.c timer: Remove init_timer_on_stack() in favor of timer_setup_on_stack() 2017-10-05 15:01:17 +02:00
qla1280.h timer: Remove init_timer_on_stack() in favor of timer_setup_on_stack() 2017-10-05 15:01:17 +02:00
qlogicfas.c scsi: qlogicfas: move bus_reset to host_reset 2017-08-25 17:21:11 -04:00
qlogicfas408.c scsi: qlogicfas: move bus_reset to host_reset 2017-08-25 17:21:11 -04:00
qlogicfas408.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
qlogicpti.c scsi: read host_busy via scsi_host_busy() 2018-06-26 12:53:26 -04:00
qlogicpti.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
raid_class.c scsi: raid_attrs: fix unused variable warning 2018-12-19 19:19:49 +01:00
script_asm.pl
scsi.c scsi: read host_busy via scsi_host_busy() 2018-06-26 12:53:26 -04:00
scsi.h scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
scsi_common.c scsi: core: doc. fixes to scsi_common.c 2017-12-11 21:39:39 -05:00
scsi_debug.c scsi: scsi_debug: fix write_same with virtual_gb problem 2019-03-13 14:02:30 -07:00
scsi_debugfs.c scsi: devinfo: use const_ilog2 for array indices 2018-04-20 19:14:28 -04:00
scsi_debugfs.h
scsi_devinfo.c scsi: core: add new RDAC LENOVO/DE_Series device 2019-05-08 07:21:49 +02:00
scsi_dh.c scsi: core: add new RDAC LENOVO/DE_Series device 2019-05-08 07:21:49 +02:00
scsi_error.c scsi: core: save/restore command resid for error handling 2019-10-29 09:19:49 +01:00
scsi_ioctl.c scsi: core: check for equality of result byte values 2018-06-26 12:27:06 -04:00
scsi_lib.c scsi: core: Handle drivers which set sg_tablesize to zero 2019-11-20 18:45:10 +01:00
scsi_lib_dma.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsi_logging.c scsi: core: Reduce memory required for SCSI logging 2019-10-07 18:57:04 +02:00
scsi_logging.h SCSI misc on 20171114 2017-11-14 16:23:44 -08:00
scsi_netlink.c
scsi_pm.c scsi: core: Synchronize request queue PM status only on successful resume 2019-01-22 21:40:32 +01:00
scsi_priv.h scsi: dh: Remove scsi_dh_remove_device() 2017-12-07 21:13:45 -05:00
scsi_proc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsi_sas_internal.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsi_scan.c scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c 2019-04-05 22:33:01 +02:00
scsi_sysctl.c
scsi_sysfs.c scsi: core: try to get module before removing device 2019-10-29 09:19:50 +01:00
scsi_trace.c
scsi_transport_api.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsi_transport_fc.c SCSI misc on 20180815 2018-08-15 22:06:26 -07:00
scsi_transport_iscsi.c scsi: iscsi: flush running unbind operations when removing a session 2019-04-20 09:15:56 +02:00
scsi_transport_sas.c SCSI misc on 20180610 2018-06-10 13:01:12 -07:00
scsi_transport_spi.c scsi: core: check for equality of result byte values 2018-06-26 12:27:06 -04:00
scsi_transport_srp.c for-4.18/block-20180603 2018-06-04 07:58:06 -07:00
scsicam.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sd.c scsi: sd: Ignore a failure to sync cache due to lack of authorization 2019-10-29 09:19:49 +01:00
sd.h block: move dif_prepare/dif_complete functions to block layer 2018-07-30 08:27:02 -06:00
sd_dif.c block: move dif_prepare/dif_complete functions to block layer 2018-07-30 08:27:02 -06:00
sd_zbc.c SCSI misc on 20180815 2018-08-15 22:06:26 -07:00
sense_codes.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ses.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
sg.c SCSI misc on 20180815 2018-08-15 22:06:26 -07:00
sgiwd93.c scsi: drop bus reset for wd33c93-compatible boards 2017-08-25 17:21:10 -04:00
sim710.c
sni_53c710.c scsi: sni_53c710: fix compilation error 2019-11-10 11:27:21 +01:00
sr.c scsi: sr: Avoid that opening a CD-ROM hangs with runtime power management enabled 2018-08-03 13:53:51 -04:00
sr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sr_ioctl.c block: Switch struct packet_command to use struct scsi_sense_hdr 2018-08-02 15:22:13 -06:00
sr_vendor.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
st.c scsi: st: remove redundant pointer STbuffer 2018-08-08 21:15:54 -04:00
st.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
st_options.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
stex.c
storvsc_drv.c scsi: storvsc: Fix calculation of sub-channel count 2019-05-08 07:21:49 +02:00
sun3_scsi.c scsi: NCR5380: Move bus reset to host reset 2017-08-25 17:21:11 -04:00
sun3_scsi_vme.c
sun3x_esp.c scsi: jazz_esp, sun3x_esp: Pass struct device pointer in dma calls 2018-03-12 22:05:43 -04:00
sun_esp.c
virtio_scsi.c scsi: virtio_scsi: don't send sc payload with tmfs 2019-03-23 20:09:59 +01:00
vmw_pvscsi.c scsi: vmw_pscsi: Fix use-after-free in pvscsi_queue_lck() 2019-07-03 13:14:45 +02:00
vmw_pvscsi.h
wd33c93.c scsi: drop bus reset for wd33c93-compatible boards 2017-08-25 17:21:10 -04:00
wd33c93.h
wd719x.c scsi: wd719x: Use module_pci_driver 2018-05-01 23:30:12 -04:00
wd719x.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xen-scsifront.c scsi: xen-scsifront: add error handling for xenbus_printf 2018-06-19 14:54:41 +02:00
zalon.c
zorro7xx.c
zorro_esp.c scsi: zorro_esp: New driver for Amiga Zorro NCR53C9x boards 2018-04-19 00:00:44 -04:00