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d3b6372c58
linux/drivers
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Juergen Gross d3b6372c58 xen/gntalloc: don't use gnttab_query_foreign_access() 
Using gnttab_query_foreign_access() is unsafe, as it is racy by design.

The use case in the gntalloc driver is not needed at all. While at it
replace the call of gnttab_end_foreign_access_ref() with a call of
gnttab_end_foreign_access(), which is what is really wanted there. In
case the grant wasn't used due to an allocation failure, just free the
grant via gnttab_free_grant_reference().

This is CVE-2022-23039 / part of XSA-396.

Reported-by: Demi Marie Obenour <demi@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
---
V3:
- fix __del_gref() (Jan Beulich)
2022-03-07 09:48:54 +01:00
..
accessibility speakup-dectlk: Restore pitch setting 2022-02-08 12:15:04 +01:00
acpi Merge branch 'acpi-processor' 2022-02-18 19:36:36 +01:00
amba ARM: 9163/1: amba: Move of_amba_device_decode_irq() into amba_probe() 2021-12-17 11:34:35 +00:00
android Merge 5.16-rc8 into char-misc-next 2022-01-03 13:44:38 +01:00
ata ata: pata_hpt37x: disable primary channel on HPT371 2022-02-23 09:39:37 +09:00
atm atm: firestream: check the return value of ioremap() in fs_init() 2022-02-28 11:36:01 +00:00
auxdisplay auxdisplay: lcd2s: Use proper API to free the instance of charlcd object 2022-03-03 00:30:31 +01:00
base regmap: Fix for v5.17 2022-02-25 12:30:01 -08:00
bcma
block xen/blkfront: don't use gnttab_query_foreign_access() for mapped status 2022-03-07 09:48:54 +01:00
bluetooth virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
bus bus: mhi: pci_generic: Add mru_default for Cinterion MV31-W 2022-02-06 13:19:46 +01:00
cdrom cdrom: simplify subdirectory registration with register_sysctl() 2022-01-22 08:33:35 +02:00
char random: only call crng_finalize_init() for primary_crng 2022-02-04 19:22:32 +01:00
clk clk: jz4725b: fix mmc0 clock gating 2022-02-17 17:05:07 -08:00
clocksource ARM: dts: Use 32KiHz oscillator on devkit8000 2022-02-18 10:08:45 +02:00
comedi
connector connector/cn_proc: Use task_is_in_init_pid_ns() 2022-01-26 18:57:09 -08:00
counter counter: fix an IS_ERR() vs NULL bug 2022-01-26 19:40:33 +01:00
cpufreq cpufreq: qcom-hw: Delay enabling throttle_irq 2022-02-09 13:18:49 +05:30
cpuidle cpuidle: use default_groups in kobj_type 2022-01-05 18:31:17 +01:00
crypto crypto: octeontx2 - Avoid stack variable overflow 2022-01-31 11:22:53 +11:00
cxl cxl/core: Remove cxld_const_init in cxl_decoder_alloc() 2022-01-04 17:29:31 -08:00
dax Merge branch 'akpm' (patches from Andrew) 2022-01-15 20:37:06 +02:00
dca
devfreq
dio
dma dmaengine: shdma: Fix runtime PM imbalance on error 2022-02-15 11:04:16 +05:30
dma-buf dma-buf: heaps: Fix potential spectre v1 gadget 2022-02-01 13:18:09 +05:30
edac EDAC: Fix calculation of returned address and next offset in edac_align_ptr() 2022-02-15 15:54:46 +01:00
eisa
extcon extcon: Deduplicate code in extcon_set_state_sync() 2021-12-24 15:27:52 +09:00
firewire
firmware ARM: SoC fixes for v5.17, part 2 2022-02-28 12:51:14 -08:00
fpga
fsi
gnss gnss: usb: add support for Sierra Wireless XM1210 2021-12-22 15:38:12 +01:00
gpio Pin control fixes for the v5.17 series: 2022-02-27 12:30:54 -08:00
gpu * drm/arm: Select DRM_GEM_CMEA_HELPER for HDLCD 2022-03-04 13:04:11 +10:00
greybus greybus: es2: fix typo in a comment 2021-12-21 10:13:26 +01:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2022-03-05 15:49:45 -08:00
hsi
hv Drivers: hv: utils: Make use of the helper macro LIST_HEAD() 2022-02-09 14:33:21 +00:00
hwmon hwmon: (pmbus) Clear pmbus fault/warning bits after read 2022-02-22 08:15:39 -08:00
hwspinlock
hwtracing
i2c i2c: brcmstb: fix support for DSL and CM variants 2022-02-18 10:37:33 +01:00
i3c i3c: master: dw: check return of dw_i3c_master_get_free_pos() 2022-01-13 02:05:50 +01:00
idle
iio 1st set of IIO fixes for the 5.17 cycle. 2022-02-21 17:58:09 +01:00
infiniband RDMA/cma: Do not change route.addr.src_addr outside state checks 2022-02-25 16:46:51 -04:00
input Input: elan_i2c - fix regulator enable count imbalance after suspend/resume 2022-03-01 20:41:22 -08:00
interconnect
iommu iommu/tegra-smmu: Fix missing put_device() call in tegra_smmu_find 2022-02-28 14:01:57 +01:00
ipack
irqchip irqchip/sifive-plic: Add missing thead,c900-plic match string 2022-02-02 10:49:29 +00:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-12-30 12:12:12 -08:00
leds LED updates for 5.17. Nothing major is happening here. 2022-01-12 16:59:22 -08:00
macintosh macintosh/mac_hid.c: simplify subdirectory registration with register_sysctl() 2022-01-22 08:33:35 +02:00
mailbox - qcom: misc updates to qcom-ipcc driver 2022-01-13 11:19:07 -08:00
mcb
md block: fix surprise removal for drivers calling blk_set_queue_dying 2022-02-17 07:54:03 -07:00
media bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
memory MTD core changes: 2022-01-11 11:35:28 -08:00
memstick
message scsi: message: fusion: mptctl: Use dma_alloc_coherent() 2022-01-10 10:33:52 -05:00
mfd driver core changes for 5.17-rc1 2022-01-12 11:11:34 -08:00
misc eeprom: ee1004: limit i2c reads to I2C_SMBUS_BLOCK_MAX 2022-02-04 16:27:44 +01:00
mmc mmc: block: fix read single on recovery logic 2022-02-08 16:04:49 +01:00
most
mtd Char/Misc driver fixes for 5.17-rc6 2022-02-25 12:12:06 -08:00
mux
net xen/netfront: don't use gnttab_query_foreign_access() for mapped status 2022-03-07 09:48:54 +01:00
nfc nfc: st21nfca: Fix potential buffer overflows in EVT_TRANSACTION 2022-01-12 14:17:45 +00:00
ntb ntb: intel: fix port config status offset for SPR 2022-01-28 10:19:16 -05:00
nubus proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
nvdimm virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
nvme nvme-tcp: send H2CData PDUs based on MAXH2CDATA 2022-02-23 14:43:11 +01:00
nvmem nvmem: core: Fix a conflict between MTD and NVMEM on wp-gpios property 2022-02-21 17:59:25 +01:00
of of/fdt: move elfcorehdr reservation early for crash dump kernel 2022-02-17 17:13:52 -06:00
opp
parisc parisc: Fix sglist access in ccio-dma.c 2022-01-28 10:15:34 +01:00
parport
pci A single fix for a regression caused by the recent PCI/MSI rework which 2022-02-27 13:07:40 -08:00
pcmcia pci-v5.17-changes 2022-01-16 08:08:11 +02:00
perf Rework of the MSI interrupt infrastructure: 2022-01-13 09:05:29 -08:00
phy phy: dphy: Correct clk_pre parameter 2022-02-02 10:33:04 +05:30
pinctrl pinctrl: sunxi: Use unique lockdep classes for IRQs 2022-02-28 23:53:19 +01:00
platform surface: surface3_power: Fix battery readings on batteries without a serial number 2022-02-24 13:48:39 +01:00
pnp proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
power power: supply: bq256xx: Handle OOM correctly 2022-02-11 21:19:51 +01:00
powercap Merge back earlier power capping changes for v5.17 2021-12-27 16:51:12 +01:00
pps
ps3
ptp ptp: ocp: Add ptp_ocp_adjtime_coarse for large adjustments 2022-03-02 09:51:21 -08:00
pwm pwm: Changes for v5.17-rc1 2022-01-20 13:25:01 +02:00
rapidio rapidio: remove not used code about RIO_VID_TUNDRA 2021-12-21 10:22:19 +01:00
ras
regulator regulator: da9121: Remove surplus DA9141 parameters 2022-02-22 11:56:29 +00:00
remoteproc remoteproc: qcom: q6v5: fix service routines build errors 2022-01-17 16:44:26 -06:00
reset SoC: Add support for StarFive JH7100 RISC-V SoC 2022-01-10 08:32:37 -08:00
rpmsg rpmsg fixes for v5.17-rc1 2022-01-27 11:23:26 +02:00
rtc rtc: sunplus: fix return value in sp_rtc_probe() 2022-01-16 23:50:34 +01:00
s390 s390/cio: verify the driver availability for path_event call 2022-02-09 22:55:01 +01:00
sbus
scsi xen/scsifront: don't use gnttab_query_foreign_access() for mapped status 2022-03-07 09:48:54 +01:00
sh
siox
slimbus
soc ARM: SoC fixes for v5.17, part 2 2022-02-28 12:51:14 -08:00
soundwire Char/Misc and other driver changes for 5.17-rc1 2022-01-14 16:02:28 +01:00
spi spi: Fixes for v5.17 2022-02-25 12:37:41 -08:00
spmi spmi: spmi-pmic-arb: fix irq_set_type race condition 2021-12-17 17:18:18 +01:00
ssb
staging staging: fbtft: fb_st7789v: reset display before initialization 2022-02-15 17:14:22 +01:00
target scsi: target: iscsi: Make sure the np under each tpg is unique 2022-01-24 23:30:24 -05:00
tc
tee OP-TEE fix error return code in probe functions 2022-02-18 17:30:01 +01:00
thermal thermal: core: Fix TZ_GET_TRIP NULL pointer dereference 2022-03-01 16:11:38 +01:00
thunderbolt thunderbolt: Add module parameter for CLx disabling 2021-12-28 10:43:56 +03:00
tty TTY/Serial driver fixes for 5.17-rc6 2022-02-25 11:45:29 -08:00
uio UIO: use default_groups in kobj_type 2021-12-29 10:54:50 +01:00
usb USB-serial fixes for 5.17-rc6 2022-02-24 14:51:45 +01:00
vdpa virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
vfio VFIO updates for v5.17-rc1 2022-01-20 13:31:46 +02:00
vhost vhost/vsock: don't check owner in vhost_vsock_stop() while releasing 2022-02-23 12:32:33 +00:00
video * drm/panel: simple: Fix assignments from panel_dpi_probe() 2022-02-11 12:06:15 +10:00
virt bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
virtio vdpa: Allow to configure max data virtqueues 2022-01-14 18:50:53 -05:00
visorbus
vlynq
vme
w1 w1: w1_therm: use swap() to make code cleaner 2021-12-21 10:38:13 +01:00
watchdog linux-watchdog 5.17-rc1 tag 2022-01-17 08:07:57 +02:00
xen xen/gntalloc: don't use gnttab_query_foreign_access() 2022-03-07 09:48:54 +01:00
zorro proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
Kconfig
Makefile