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Mathias Nyman d39b5bad86 xhci: Fix crash if scatter gather is used with Immediate Data Transfer (IDT). 
A second regression was found in the immediate data transfer (IDT)
support which was added to 5.2 kernel

IDT is used to transfer small amounts of data (up to 8 bytes) in the
field normally used for data dma address, thus avoiding dma mapping.

If the data was not already dma mapped, then IDT support assumed data was
in urb->transfer_buffer, and did not take into accound that even
small amounts of data (8 bytes) can be in a scatterlist instead.

This caused a NULL pointer dereference when sg_dma_len() was used
with non-dma mapped data.

Solve this by not using IDT if scatter gather buffer list is used.

Fixes: 33e39350ebd2 ("usb: xhci: add Immediate Data Transfer support")
Cc: <stable@vger.kernel.org> # v5.2
Reported-by: Maik Stohn <maik.stohn@seal-one.com>
Tested-by: Maik Stohn <maik.stohn@seal-one.com>
CC: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/1564044861-1445-1-git-send-email-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-25 11:26:42 +02:00
..
whci
USB: host: whci: rename Kbuild file
2019-01-22 09:08:17 +01:00
bcma-hcd.c
USB: host: Remove redundant license text
2017-11-07 15:45:02 +01:00
ehci-atmel.c
USB: host: ehci: Remove redundant license text
2017-11-07 15:45:02 +01:00
ehci-dbg.c
USB: ehci-hcd: no need to check return value of debugfs_create functions
2018-05-31 12:54:22 +02:00
ehci-exynos.c
usb: exynos: add workaround for the USB device bindings conflict
2019-05-21 08:34:49 +02:00
ehci-fsl.c
usb: host: Stops USB controller init if PLL fails to lock
2019-07-03 18:52:20 +02:00
ehci-fsl.h
usb: phy: Workaround for USB erratum-A005728
2019-07-03 18:52:20 +02:00
ehci-grlib.c
USB: host: ehci: Remove redundant license text
2017-11-07 15:45:02 +01:00
ehci-hcd.c
USB: drop HCD_LOCAL_MEM flag
2019-06-03 16:00:08 +02:00
ehci-hub.c
USB: ehci-hcd: Add get_resuming_ports method
2018-06-25 21:44:43 +08:00
ehci-mem.c
Revert "usb: host: ehci: Use dma_pool_zalloc()"
2018-05-04 14:35:12 -07:00
ehci-mv.c
USB: EHCI: ehci-mv: add MODULE_DEVICE_TABLE
2019-01-18 10:07:05 +01:00
ehci-mxc.c
USB: host: ehci: Remove redundant license text
2017-11-07 15:45:02 +01:00
ehci-npcm7xx.c
USB: host: ehci-npcm7xx: Fix some error codes in probe
2018-06-28 19:32:42 +09:00
ehci-omap.c
usb: ehci-omap: Fix deferred probe for phy handling
2018-12-17 14:07:59 +01:00
ehci-orion.c
usb: ehci-orion: add S2RAM support
2019-01-30 09:22:35 +01:00
ehci-pci.c
usb: pci-quirks: Minor cleanup for AMD PLL quirk
2019-07-25 10:40:02 +02:00
ehci-platform.c
usb: host: ehci-platform: remove custom USB PHY handling
2018-03-09 09:43:53 -08:00
ehci-pmcmsp.c
USB: host: ehci: Remove redundant license text
2017-11-07 15:45:02 +01:00
ehci-ppc-of.c
USB: add SPDX identifiers to all remaining files in drivers/usb/
2017-11-04 11:48:02 +01:00
ehci-ps3.c
powerpc/ps3: Set driver coherent_dma_mask
2018-07-20 12:50:37 +10:00
ehci-q.c
usb: host: Replace empty define with do while
2018-09-28 15:03:37 +02:00
ehci-sched.c
usb: host: ehci-sched: remove redundant pointer dev
2018-07-13 15:41:56 +02:00
ehci-sh.c
USB: host: ehci: Remove redundant license text
2017-11-07 15:45:02 +01:00
ehci-spear.c
USB: host: ehci: Remove redundant license text
2017-11-07 15:45:02 +01:00
ehci-st.c
usb: host: ehci-st: Remove set but not used variable 'ehci'
2019-06-03 15:21:56 +02:00
ehci-sysfs.c
USB: move many drivers to use DEVICE_ATTR_RW
2018-01-24 08:49:51 +01:00
ehci-tegra.c
usb: tegra: Move utmi-pads reset from ehci-tegra to tegra-phy
2018-04-23 09:50:57 +02:00
ehci-timer.c
usb: host: Replace empty define with do while
2018-09-28 15:03:37 +02:00
ehci-w90x900.c
USB: host: ehci: Remove redundant license text
2017-11-07 15:45:02 +01:00
ehci-xilinx-of.c
USB: host: ehci: Remove redundant license text
2017-11-07 15:45:02 +01:00
ehci.h
usb: host: Replace empty define with do while
2018-09-28 15:03:37 +02:00
fhci-dbg.c
USB: fhci-hcd: no need to check return value of debugfs_create functions
2018-05-31 12:54:22 +02:00
fhci-hcd.c
USB: host: fhci: Remove redundant license text
2017-11-07 15:45:02 +01:00
fhci-hub.c
USB: host: fhci: Remove redundant license text
2017-11-07 15:45:02 +01:00
fhci-mem.c
USB: host: fhci: Remove redundant license text
2017-11-07 15:45:02 +01:00
fhci-q.c
USB: host: fhci: Remove redundant license text
2017-11-07 15:45:02 +01:00
fhci-sched.c
usb: host: use usb_endpoint_maxp instead of usb_maxpacket
2019-04-19 14:23:34 +02:00
fhci-tds.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
fhci.h
USB: fhci-hcd: no need to check return value of debugfs_create functions
2018-05-31 12:54:22 +02:00
fotg210-hcd.c
dma-mapping updates for Linux 5.3
2019-07-12 15:13:55 -07:00
fotg210.h
usb: host: Replace empty define with do while
2018-09-28 15:03:37 +02:00
fsl-mph-dr-of.c
usb :fsl: Change string format for errata property
2019-07-03 18:52:20 +02:00
hwa-hc.c
usb: wusbcore: fix unbalanced get/put cluster_id
2019-07-25 10:40:03 +02:00
imx21-dbg.c
USB: imx21-hcd: no need to check return value of debugfs_create functions
2018-05-31 12:54:22 +02:00
imx21-hcd.c
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
imx21-hcd.h
USB: host: imx21: Remove redundant license text
2017-11-07 15:45:02 +01:00
isp116x-hcd.c
USB: isp116x-hcd: no need to check return value of debugfs_create functions
2018-05-31 12:54:21 +02:00
isp116x.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
isp1362-hcd.c
usb: host: isp1362-hcd: convert to DEFINE_SHOW_ATTRIBUTE
2018-12-12 12:38:41 +01:00
isp1362.h
usb: isp1362: Spelling s/eclusive/exclusive/
2019-06-18 08:51:28 +02:00
Kconfig
docs: usb: rename files to .rst and add them to drivers-api
2019-06-20 14:28:36 +02:00
Makefile
USB: EHCI: make ehci-mv a separate driver
2018-09-20 13:07:55 +02:00
max3421-hcd.c
USB: add SPDX identifiers to all remaining files in drivers/usb/
2017-11-04 11:48:02 +01:00
ohci-at91.c
USB: host: ohci-at91: add sam9x60-sfr definition for ohci
2019-01-18 09:58:04 +01:00
ohci-da8xx.c
usb: ohci-da8xx: drop the vbus GPIO
2019-04-12 19:46:48 +05:30
ohci-dbg.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
ohci-exynos.c
usb: exynos: add workaround for the USB device bindings conflict
2019-05-21 08:34:49 +02:00
ohci-hcd.c
usb: host: Fix excessive alignment restriction for local memory allocations
2019-06-28 07:57:07 +02:00
ohci-hub.c
ohci-hcd: Fix race condition caused by ohci_urb_enqueue() and io_watchdog_func()
2018-02-15 18:43:57 +01:00
ohci-mem.c
usb: host: Fix excessive alignment restriction for local memory allocations
2019-06-28 07:57:07 +02:00
ohci-nxp.c
USB: host: ohci: Remove redundant license text
2017-11-07 15:45:02 +01:00
ohci-omap.c
usb: add a flag to skip PHY initialization to struct usb_hcd
2018-03-09 09:43:52 -08:00
ohci-pci.c
usb: pci-quirks: Minor cleanup for AMD PLL quirk
2019-07-25 10:40:02 +02:00
ohci-platform.c
usb: host: ohci-platform: remove custom USB PHY handling
2018-03-09 09:43:53 -08:00
ohci-ppc-of.c
USB: add SPDX identifiers to all remaining files in drivers/usb/
2017-11-04 11:48:02 +01:00
ohci-ps3.c
powerpc/ps3: Set driver coherent_dma_mask
2018-07-20 12:50:37 +10:00
ohci-pxa27x.c
USB: add SPDX identifiers to all remaining files in drivers/usb/
2017-11-04 11:48:02 +01:00
ohci-q.c
usb: ohci: Proper handling of ed_rm_list to handle race condition between usb_kill_urb() and finish_unlinks()
2018-02-15 18:45:34 +01:00
ohci-s3c2410.c
usb: ohci-s3c2410: Remove set but not used variable 'hcd'
2019-06-03 15:21:57 +02:00
ohci-sa1111.c
USB: add SPDX identifiers to all remaining files in drivers/usb/
2017-11-04 11:48:02 +01:00
ohci-sm501.c
USB: drop HCD_LOCAL_MEM flag
2019-06-03 16:00:08 +02:00
ohci-spear.c
USB: ohci-spear: Remove set but not used variable 'ohci'
2019-06-03 15:21:57 +02:00
ohci-st.c
usb: host: ohci-st: Remove set but not used variable 'ohci'
2019-06-03 15:21:56 +02:00
ohci-tmio.c
USB: drop HCD_LOCAL_MEM flag
2019-06-03 16:00:08 +02:00
ohci.h
USB: use genalloc for USB HCs with local memory
2019-06-03 16:00:07 +02:00
oxu210hp-hcd.c
usb: host: oxu210hp-hcd: remove set but not used variables 'uframes, transfer_buffer_length'
2019-02-19 14:41:38 +01:00
oxu210hp.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pci-quirks.c
usb: pci-quirks: Minor cleanup for AMD PLL quirk
2019-07-25 10:40:02 +02:00
pci-quirks.h
usb: pci-quirks: Minor cleanup for AMD PLL quirk
2019-07-25 10:40:02 +02:00
r8a66597-hcd.c
usb: r8a66597: Fix a possible concurrency use-after-free bug in r8a66597_endpoint_disable()
2018-12-19 08:13:26 +01:00
r8a66597.h
USB: host: Remove redundant license text
2017-11-07 15:45:02 +01:00
sl811_cs.c
USB: add SPDX identifiers to all remaining files in drivers/usb/
2017-11-04 11:48:02 +01:00
sl811-hcd.c
USB: host: sl811: Re-use DEFINE_SHOW_ATTRIBUTE() macro
2018-03-16 15:40:19 +01:00
sl811.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ssb-hcd.c
USB: host: Remove redundant license text
2017-11-07 15:45:02 +01:00
u132-hcd.c
usb: host: u132-hcd: remove unneeded variable frame
2019-06-06 08:59:19 +02:00
uhci-debug.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
uhci-grlib.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
uhci-hcd.c
USB: drop HCD_LOCAL_MEM flag
2019-06-03 16:00:08 +02:00
uhci-hcd.h
usb: uhci: Add clk support to uhci-platform
2018-01-17 15:08:56 +01:00
uhci-hub.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
uhci-pci.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
uhci-platform.c
usb: uhci: Add clk support to uhci-platform
2018-01-17 15:08:56 +01:00
uhci-q.c
USB: remove the URB_NO_FSBR flag
2017-12-12 13:16:07 +01:00
xhci-dbg.c
usb: xhci: Cleanup printk debug message for ERST
2017-12-08 17:43:52 +01:00
xhci-dbgcap.c
drivers: Remove explicit invocations of mmiowb()
2019-04-08 12:01:02 +01:00
xhci-dbgcap.h
usb: xhci: dbc: Add SPDX identifiers to dbc files
2018-05-24 18:03:07 +02:00
xhci-dbgtty.c
usb: xhci: dbc: Add SPDX identifiers to dbc files
2018-05-24 18:03:07 +02:00
xhci-debugfs.c
usb: xhci: Fix a potential null pointer dereference in xhci_debugfs_create_endpoint()
2019-05-22 14:25:37 +02:00
xhci-debugfs.h
usb: xhci: remove unused member 'parent' in xhci_regset struct
2019-02-20 20:18:23 +01:00
xhci-ext-caps.c
xhci: Add Intel extended cap / otg phy mux handling
2018-03-22 13:40:10 +01:00
xhci-ext-caps.h
xhci: Add Intel extended cap / otg phy mux handling
2018-03-22 13:40:10 +01:00
xhci-histb.c
xhci: Fix leaking USB3 shared_hcd at xhci removal
2018-11-09 08:31:08 -08:00
xhci-hub.c
xhci: add port and bus number to port dynamic debugging
2019-04-27 14:53:58 +02:00
xhci-mem.c
usb: xhci: fix build warning - missing prototype
2019-02-21 10:54:22 +01:00
xhci-mtk-sch.c
usb: xhci-mtk: supports SSP without external USB3 gen2 hub
2018-09-28 15:04:45 +02:00
xhci-mtk.c
usb: xhci-mtk: get optional clock by devm_clk_get_optional()
2019-04-19 14:23:34 +02:00
xhci-mtk.h
usb: xhci-mtk: supports bandwidth scheduling with multi-TT
2018-09-28 15:04:45 +02:00
xhci-mvebu.c
usb: host: xhci: mvebu: add reset on resume quirk
2019-01-30 09:22:35 +01:00
xhci-mvebu.h
usb: host: xhci: mvebu: add reset on resume quirk
2019-01-30 09:22:35 +01:00
xhci-pci.c
usb: pci-quirks: Minor cleanup for AMD PLL quirk
2019-07-25 10:40:02 +02:00
xhci-plat.c
usb: host: xhci-plat: get optional clock by devm_clk_get_optional()
2019-04-19 14:24:25 +02:00
xhci-plat.h
USB: host: xhci: Remove redundant license text
2017-11-07 15:45:02 +01:00
xhci-rcar.c
usb: host: xhci-rcar: Add XHCI_TRUST_TX_LENGTH quirk
2019-03-19 14:57:31 +01:00
xhci-rcar.h
USB: host: xhci: Remove redundant license text
2017-11-07 15:45:02 +01:00
xhci-ring.c
Merge 5.2-rc6 into usb-next
2019-06-23 09:21:15 +02:00
xhci-tegra.c
usb: host: xhci-tegra: Fix Wunused-const-variable
2019-06-18 08:44:09 +02:00
xhci-trace.c
USB: host: xhci: Remove redundant license text
2017-11-07 15:45:02 +01:00
xhci-trace.h
usb: xhci: add endpoint context tracing when an endpoint is added
2019-04-27 14:53:58 +02:00
xhci.c
Merge 5.2-rc6 into usb-next
2019-06-23 09:21:15 +02:00
xhci.h
xhci: Fix crash if scatter gather is used with Immediate Data Transfer (IDT).
2019-07-25 11:26:42 +02:00