AcoSail/kernel_optimize_test
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kernel_optimize_test/drivers
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Ard Biesheuvel b0f1cc093b efi: runtime: avoid EFIv2 runtime services on Apple x86 machines 
commit f5390cd0b43c2e54c7cf5506c7da4a37c5cef746 upstream.

Aditya reports [0] that his recent MacbookPro crashes in the firmware
when using the variable services at runtime. The culprit appears to be a
call to QueryVariableInfo(), which we did not use to call on Apple x86
machines in the past as they only upgraded from EFI v1.10 to EFI v2.40
firmware fairly recently, and QueryVariableInfo() (along with
UpdateCapsule() et al) was added in EFI v2.00.

The only runtime service introduced in EFI v2.00 that we actually use in
Linux is QueryVariableInfo(), as the capsule based ones are optional,
generally not used at runtime (all the LVFS/fwupd firmware update
infrastructure uses helper EFI programs that invoke capsule update at
boot time, not runtime), and not implemented by Apple machines in the
first place. QueryVariableInfo() is used to 'safely' set variables,
i.e., only when there is enough space. This prevents machines with buggy
firmwares from corrupting their NVRAMs when they run out of space.

Given that Apple machines have been using EFI v1.10 services only for
the longest time (the EFI v2.0 spec was released in 2006, and Linux
support for the newly introduced runtime services was added in 2011, but
the MacbookPro12,1 released in 2015 still claims to be EFI v1.10 only),
let's avoid the EFI v2.0 ones on all Apple x86 machines.

[0] https://lore.kernel.org/all/6D757C75-65B1-468B-842D-10410081A8E4@live.com/

Cc: <stable@vger.kernel.org>
Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Reported-by: Aditya Garg <gargaditya08@live.com>
Tested-by: Orlando Chamberlain <redecorating@protonmail.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Aditya Garg <gargaditya08@live.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215277
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-01 17:25:39 +01:00
..
accessibility
acpi ACPI: battery: Add the ThinkPad "Not Charging" quirk 2022-01-27 10:54:19 +01:00
amba ARM: 9120/1: Revert "amba: make use of -1 IRQs warn" 2021-11-06 14:10:09 +01:00
android binder: fix handling of error during copy 2022-01-27 10:54:06 +01:00
ata libata: if T_LENGTH is zero, dma direction should be DMA_NONE 2021-12-22 09:30:58 +01:00
atm
auxdisplay auxdisplay: ht16k33: Fix frame buffer device blanking 2021-11-18 14:04:24 +01:00
base device property: Fix fwnode_graph_devcon_match() fwnode leak 2022-01-27 10:54:25 +01:00
bcma
block floppy: Add max size check for user space request 2022-01-27 10:54:14 +01:00
bluetooth Bluetooth: vhci: Set HCI_QUIRK_VALID_LE_STATES 2022-01-27 10:54:18 +01:00
bus bus: ti-sysc: Fix variable set but not used warning for reinit_modules 2021-12-22 09:30:59 +01:00
cdrom
char tpm: fix NPE on probe for missing device 2022-01-27 10:54:24 +01:00
clk clk: si5341: Fix clock HW provider cleanup 2022-01-27 10:54:31 +01:00
clocksource clocksource/drivers/timer-ti-dm: Select TIMER_OF 2021-11-18 14:04:09 +01:00
connector
counter counter: stm32-lptimer-cnt: remove iio counter abi 2022-01-27 10:54:08 +01:00
cpufreq cpufreq: Fix initialization of min and max frequency QoS requests 2022-01-27 10:54:17 +01:00
cpuidle cpuidle: Fix kobject memory leaks in error paths 2021-11-18 14:04:05 +01:00
crypto crypto: caam - replace this_cpu_ptr with raw_cpu_ptr 2022-01-27 10:54:24 +01:00
dax
dca
devfreq
dio
dma dmaengine: at_xdmac: Fix at_xdmac_lld struct definition 2022-01-27 10:54:34 +01:00
dma-buf dma_fence_array: Fix PENDING_ERROR leak in dma_fence_array_signaled() 2022-01-27 10:53:43 +01:00
edac EDAC/synopsys: Use the quirk for version instead of ddr version 2022-01-27 10:54:11 +01:00
eisa
extcon
firewire
firmware efi: runtime: avoid EFIv2 runtime services on Apple x86 machines 2022-02-01 17:25:39 +01:00
fpga
fsi
gnss
gpio gpio: aspeed: Convert aspeed_gpio.lock to raw_spinlock 2022-01-27 10:54:15 +01:00
gpu drm/vmwgfx: Fix stale file descriptors on failed usercopy 2022-01-29 10:26:11 +01:00
greybus
hid HID: vivaldi: fix handling devices not using numbered reports 2022-01-27 10:54:33 +01:00
hsi HSI: core: Fix return freed object in hsi_new_client 2022-01-27 10:54:12 +01:00
hv hyperv/vmbus: include linux/bitops.h 2021-11-18 14:03:42 +01:00
hwmon hwmon: (mr75203) fix wrong power-up delay value 2022-01-27 10:54:00 +01:00
hwspinlock
hwtracing coresight: cti: Correct the parameter for pm_runtime_put 2021-11-18 14:03:51 +01:00
i2c i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters 2022-01-27 10:54:23 +01:00
i3c
ide
idle
iio iio: adc: ti-adc081c: Partial revert of removal of ACPI IDs 2022-01-27 10:53:43 +01:00
infiniband RDMA/rxe: Fix a typo in opcode name 2022-01-27 10:54:30 +01:00
input Input: zinitix - make sure the IRQ is allocated before it gets enabled 2022-01-11 15:25:02 +01:00
interconnect
iommu iommu/iova: Fix race between FQ timeout and teardown 2022-01-27 10:54:08 +01:00
ipack
irqchip irqchip/gic-v4: Disable redistributors' view of the VPE table at boot time 2022-01-27 10:54:23 +01:00
isdn mISDN: change function names to avoid conflicts 2022-01-11 15:25:02 +01:00
leds
lightnvm
macintosh
mailbox
mcb
md dm: fix alloc_dax error handling in alloc_dev 2022-01-27 10:54:22 +01:00
media media: venus: core: Drop second v4l2 device unregister 2022-02-01 17:25:38 +01:00
memory memory: renesas-rpc-if: Return error in case devm_ioremap_resource() fails 2022-01-27 10:53:48 +01:00
memstick memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host() 2021-11-18 14:04:07 +01:00
message
mfd mfd: atmel-flexcom: Use .resume_noirq 2022-01-27 10:53:51 +01:00
misc misc: lattice-ecp3-config: Fix task hung when firmware load failed 2022-01-27 10:54:08 +01:00
mmc mmc: core: Fixup storing of OCR for MMC_QUIRK_NONSTD_SDIO 2022-01-27 10:54:16 +01:00
most most: fix control-message timeouts 2021-11-18 14:03:51 +01:00
mtd mtd: nand: bbt: Fix corner case in bad block table handling 2022-01-27 10:54:36 +01:00
mux
net net: stmmac: skip only stmmac_ptp_register when resume from suspend 2022-02-01 17:25:38 +01:00
nfc NFC: st21nfca: Fix memory leak in device probe and remove 2022-01-05 12:40:31 +01:00
ntb
nubus
nvdimm
nvme nvmet: use IOCB_NOWAIT only if the filesystem supports it 2021-12-01 09:19:07 +01:00
nvmem nvmem: core: set size for sysfs bin file 2022-01-27 10:54:22 +01:00
of of: base: Improve argument length mismatch error 2022-01-27 10:54:28 +01:00
opp opp: Fix return in _opp_add_static_v2() 2021-11-18 14:04:22 +01:00
oprofile
parisc parisc: pdc_stable: Fix memory leak in pdcs_register_pathentries 2022-01-27 10:54:31 +01:00
parport
pci PCI: pci-bridge-emul: Set PCI_STATUS_CAP_LIST for PCIe device 2022-01-27 10:54:26 +01:00
pcmcia pcmcia: fix setting of kthread task states 2022-01-27 10:54:03 +01:00
perf
phy phy: uniphier-usb3ss: fix unintended writing zeros to PHY register 2022-01-27 10:54:08 +01:00
pinctrl pinctrl: mediatek: fix global-out-of-bounds issue 2021-12-29 12:26:07 +01:00
platform platform/x86: apple-gmux: use resource_size() with res 2022-01-05 12:40:29 +01:00
pnp
power power: reset: mt6397: Check for null res pointer 2022-01-27 10:54:00 +01:00
powercap
pps
ps3
ptp ptp_pch: Load module automatically if ID matches 2021-10-13 10:04:27 +02:00
pwm
rapidio
ras
regulator regulator: qcom_smd: Align probe function with rpmh-regulator 2022-01-27 10:54:20 +01:00
remoteproc remoteproc: qcom: pil_info: Don't memcpy_toio more than is provided 2022-01-20 09:17:50 +01:00
reset reset: socfpga: add empty driver allowing consumers to probe 2021-11-18 14:03:42 +01:00
rpmsg rpmsg: core: Clean up resources on announce_create failure. 2022-01-27 10:54:24 +01:00
rtc rtc: pxa: fix null pointer dereference 2022-01-27 10:54:33 +01:00
s390 scsi: zfcp: Fix failed recovery on gone remote port with non-NPIV FCP devices 2022-02-01 17:25:39 +01:00
sbus
scsi scsi: core: Show SCMD_LAST in text form 2022-01-27 10:54:29 +01:00
sfi
sh maple: fix wrong return value of maple_bus_init(). 2021-11-26 10:39:12 +01:00
siox
slimbus
soc PM: AVS: qcom-cpr: Use div64_ul instead of do_div 2022-01-27 10:54:17 +01:00
soundwire soundwire: debugfs: use controller id and link_id for debugfs 2021-11-18 14:04:16 +01:00
spi spi: uniphier: Fix a bug that doesn't point to private data correctly 2022-01-27 10:54:24 +01:00
spmi
ssb
staging media: atomisp: handle errors at sh_css_create_isp_params() 2022-01-27 10:54:11 +01:00
target scsi: target: Fix alua_tg_pt_gps_count tracking 2021-11-26 10:39:11 +01:00
tc
tee tee: fix put order in teedev_close_context() 2022-01-27 10:53:49 +01:00
thermal thermal/drivers/imx8mm: Enable ADC when enabling monitor 2022-01-27 10:53:52 +01:00
thunderbolt thunderbolt: Runtime PM activate both ends of the device link 2022-01-27 10:54:14 +01:00
tty serial: Fix incorrect rs485 polarity on uart open 2022-01-27 10:54:25 +01:00
uio
usb usb: hub: Add delay for SuperSpeed hub resume to let links transit to U0 2022-01-27 10:54:17 +01:00
vdpa vdpa/mlx5: Fix wrong configuration of virtio_version_1_0 2022-01-27 10:54:33 +01:00
vfio
vhost vdpa: check that offsets are within bounds 2021-12-22 09:30:51 +01:00
video backlight: qcom-wled: Respect enabled-strings in set_brightness 2022-01-27 10:53:59 +01:00
virt
virtio virtio_ring: mark ring unused on error 2022-01-27 10:54:33 +01:00
visorbus
vlynq
vme
w1 w1: Misuse of get_user()/put_user() reported by sparse 2022-01-27 10:54:22 +01:00
watchdog ar7: fix kernel builds for compiler test 2021-11-18 14:04:24 +01:00
xen xen/gntdev: fix unmap notification order 2022-01-27 10:54:24 +01:00
zorro
Kconfig
Makefile