haraldwolff/qemu-patch-raspberry4
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qemu-patch-raspberry4/hw
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Greg Kurz 918112c02a 9pfs: fix O_PATH build break with older glibc versions 
When O_PATH is used with O_DIRECTORY, it only acts as an optimization: the
openat() syscall simply finds the name in the VFS, and doesn't trigger the
underlying filesystem.

On systems that don't define O_PATH, because they have glibc version 2.13
or older for example, we can safely omit it. We don't want to deactivate
O_PATH globally though, in case it is used without O_DIRECTORY. The is done
with a dedicated macro.

Systems without O_PATH may thus fail to resolve names that involve
unreadable directories, compared to newer systems succeeding, but such
corner case failure is our only option on those older systems to avoid
the security hole of chasing symlinks inappropriately.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
(added last paragraph to changelog as suggested by Eric Blake)
Signed-off-by: Greg Kurz <groug@kaod.org>
2017-03-06 17:34:01 +01:00
..
9pfs 9pfs: fix O_PATH build break with older glibc versions 2017-03-06 17:34:01 +01:00
acpi virtio, pc: fixes, features 2017-03-03 10:09:03 +00:00
adc STM32F2xx: Add the ADC device 2016-10-04 13:28:07 +01:00
alpha hw: Default -drive to if=ide explicitly where it works 2017-02-21 13:10:53 +01:00
arm bcm2835: add sdhost and gpio controllers 2017-02-28 17:10:00 +00:00
audio es1370: wire up reset via DeviceClass 2017-01-11 09:19:03 +01:00
block hw/block: Introduce share-rw qdev property 2017-02-28 20:40:36 +01:00
bt chardev: qom-ify 2017-01-27 18:08:00 +01:00
char hw/char/mcf_uart: QOMify the ColdFire UART 2017-02-16 14:06:56 +01:00
core Migration pull 2017-03-02 17:39:12 +00:00
cpu Introduce DEVICE_CATEGORY_CPU for CPU devices 2017-01-27 18:07:31 +01:00
cris cris: Fix broken header guard in hw/cris/boot.h 2016-07-12 16:20:46 +02:00
display trivial patches for 2017-02-28 2017-02-28 16:22:41 +00:00
dma migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
gpio bcm2835_gpio: add bcm2835 gpio controller 2017-02-28 17:10:00 +00:00
i2c arm: Uniquely name imx25 I2C buses. 2017-01-20 11:15:06 +00:00
i386 virtio, pc: fixes, features 2017-03-03 10:09:03 +00:00
ide hw/block: Request permissions 2017-02-28 20:40:36 +01:00
input -----BEGIN PGP SIGNATURE----- 2017-02-02 16:08:28 +00:00
intc ppc/xics: register reset handlers for the ICP and ICS objects 2017-03-06 10:07:38 +11:00
ipack ipack: Update e-mail address 2016-05-18 15:04:27 +03:00
ipmi migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
isa Allow ISA bus to be configured out 2017-02-06 12:33:21 +11:00
lm32 char: rename CharDriverState Chardev 2017-01-27 18:07:59 +01:00
m68k hw/m68k: QOMify the ColdFire interrupt controller 2017-02-18 22:23:31 +01:00
mem pc: memhp: enable nvdimm device hotplug 2016-11-01 19:21:09 +02:00
microblaze clean-up: removed duplicate #includes 2016-10-28 18:17:24 +03:00
mips hw/mips: MIPS Boston board support 2017-02-24 10:37:21 +00:00
misc hw/arm/exynos: Fix Linux kernel division by zero for PLLs 2017-02-28 12:08:20 +00:00
moxie hw: explicitly include qemu-common.h and cpu.h 2016-03-22 22:20:17 +01:00
net cadence_gem: Remove unused parameter debug message 2017-02-28 09:03:38 +03:00
nios2 nios2: Add Altera 10M50 GHRD emulation 2017-01-24 13:10:35 -08:00
nvram hw/block: Request permissions 2017-02-28 20:40:36 +01:00
openrisc target/openrisc: Rename the cpu from or32 to or1k 2017-02-14 08:14:58 +11:00
pci spapr/pci: populate PCI DT in reverse order 2017-03-01 11:23:39 +11:00
pci-bridge ppc patch queue 2017-02-02 2017-02-02 18:48:06 +00:00
pci-host ppc patch queue for 2017-02-22 2017-02-24 10:13:57 +00:00
pcmcia hw: Clean up includes 2016-01-29 15:07:25 +00:00
ppc ppc patch queue for 2017-03-06 2017-03-06 13:06:30 +00:00
s390x s390x/ipl: Load network boot image 2017-02-28 12:04:48 +01:00
scsi hw/block: Request permissions 2017-02-28 20:40:36 +01:00
sd Block layer patches 2017-03-01 23:09:46 +00:00
sh4 hw: Default -drive to if=ide explicitly where it works 2017-02-21 13:10:53 +01:00
smbios stubs: move smbios stubs to hw/smbios 2017-01-16 17:52:35 +01:00
sparc hw: Drop superfluous special checks for orphaned -drive 2017-02-21 13:17:45 +01:00
sparc64 Pull request for Niagara patches 2017 02 26 2017-02-26 22:40:23 +00:00
ssi aspeed/smc: use a modulo to check segment limits 2017-02-10 17:40:30 +00:00
timer armv7m: Split systick out from NVIC 2017-02-28 16:18:49 +00:00
tpm clean-up: removed duplicate #includes 2016-10-28 18:17:24 +03:00
tricore tricore: remove useless cast 2016-09-15 15:32:22 +03:00
unicore32 clean-up: removed duplicate #includes 2016-10-28 18:17:24 +03:00
usb Migration pull 2017-03-02 17:39:12 +00:00
vfio vfio/pci-quirks.c: Disable stolen memory for igd VFIO 2017-02-22 13:19:59 -07:00
virtio virtio: unbreak virtio-pci with IOMMU after caching ring translations 2017-03-02 07:14:28 +02:00
watchdog wdt: Add Aspeed watchdog device model 2017-02-07 18:29:59 +00:00
xen Xen 2017/02/02 2017-02-03 12:31:40 +00:00
xenpv xenpv: Fix qemu_uuid compiling error 2016-09-29 11:43:17 +08:00
xtensa target/xtensa: refactor CCOUNT/CCOMPARE 2017-01-15 13:01:55 -08:00
Makefile.objs acpi: filter based on CONFIG_ACPI_X86 rather than TARGET 2017-01-16 17:52:35 +01:00