Thomas Garnier
e33f8d3267
arm/syscalls: Optimize address limit check ...
Disable the generic address limit check in favor of an architecture
specific optimized implementation. The generic implementation using
pending work flags did not work well with ARM and alignment faults.
The address limit is checked on each syscall return path to user-mode
path as well as the irq user-mode return function. If the address limit
was changed, a function is called to report data corruption (stopping
the kernel or process based on configuration).
The address limit check has to be done before any pending work because
they can reset the address limit and the process is killed using a
SIGKILL signal. For example the lkdtm address limit check does not work
because the signal to kill the process will reset the user-mode address
limit.
Signed-off-by: Thomas Garnier <thgarnie@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Tested-by: Kees Cook <keescook@chromium.org>
Tested-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Pratyush Anand <panand@redhat.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Will Drewry <wad@chromium.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: David Howells <dhowells@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-api@vger.kernel.org
Cc: Yonghong Song <yhs@fb.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1504798247-48833-4-git-send-email-keescook@chromium.org
2017-09-17 19:45:33 +02:00
ARM: arm64: Devicetree updates for v4.14
2017-09-10 20:54:48 -07:00
arm: implement ->dma_supported instead of ->set_dma_mask
2017-06-28 06:54:49 -07:00
ARM/arm64: SoC platform updates for v4.14
2017-09-10 20:35:46 -07:00
crypto: arm/aes - avoid expanded lookup tables in the final round
2017-08-04 09:27:25 +08:00
Revert "arm/syscalls: Check address limit on user-mode return"
2017-09-17 19:45:33 +02:00
arm/syscalls: Optimize address limit check
2017-09-17 19:45:33 +02:00
KVM: arm: implements the kvm_arch_vcpu_in_kernel()
2017-08-08 10:57:43 +02:00
ARM: implement memset32 & memset64
2017-09-08 18:26:48 -07:00
ARM: owl: smp: Drop bogus holding pen
2017-07-03 14:31:47 +02:00
clocksource/drivers/fttmr010: Merge Moxa into FTTMR010
2017-06-12 10:45:10 +02:00
The diff is dominated by the Allwinner A10/A20 SoCs getting converted to
2017-09-13 11:04:14 -07:00
ARM: SoC platform updates
2017-07-04 14:34:51 -07:00
clocksource/drivers: Rename CLKSRC_OF to TIMER_OF
2017-06-14 12:01:03 +02:00
ARM: remove duplicate 'const' annotations'
2017-05-19 10:12:55 +02:00
This pull request contains the following core changes:
2017-09-01 15:34:30 +02:00
mtd: nand: Rename nand.h into rawnand.h
2017-08-13 10:11:49 +02:00
ARM/arm64: SoC platform updates for v4.14
2017-09-10 20:35:46 -07:00
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2017-09-12 06:10:44 -07:00
ARM: gemini: select pin controller
2017-08-05 23:48:29 +02:00
ARM/arm64: SoC platform updates for v4.14
2017-09-10 20:35:46 -07:00
dma-mapping updates for 4.14:
2017-09-12 13:30:06 -07:00
ARM/PCI: Convert PCI scan API to pci_scan_root_bus_bridge()
2017-06-28 15:13:55 -05:00
This pull request contains the following core changes:
2017-09-01 15:34:30 +02:00
ARM/dmaengine: pl08x: pass reasonable memcpy settings
2017-05-24 09:44:32 +05:30
ARM: mediatek: add MT7623a smp bringup code
2017-07-31 13:31:48 +02:00
arm: meson: select the clock controller for Meson8
2017-06-09 11:15:36 -07:00
This pull request contains the following core changes:
2017-09-01 15:34:30 +02:00
clocksource/drivers/fttmr010: Merge Moxa into FTTMR010
2017-06-12 10:45:10 +02:00
ARM/PCI: Convert PCI scan API to pci_scan_root_bus_bridge()
2017-06-28 15:13:55 -05:00
Merge branch 'next/cleanup' into next/soc
2017-09-05 20:29:46 -07:00
MTD changes for 4.14:
2017-09-09 14:48:21 -07:00
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2017-09-12 06:10:44 -07:00
mtd: nand: Rename nand.h into rawnand.h
2017-08-13 10:11:49 +02:00
ARM: sirf: mark sirfsoc_init_late as __maybe_unused
2017-07-27 22:57:44 +02:00
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2017-09-12 06:10:44 -07:00
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2017-09-12 06:10:44 -07:00
ARM: rpc: rename RAM_SIZE macro
2017-07-27 22:57:38 +02:00
ARM/arm64: SoC platform updates for v4.14
2017-09-10 20:35:46 -07:00
dmaengine updates for 4.13-rc1
2017-07-08 12:36:50 -07:00
ARM: sa1100: normalize clk API
2017-07-27 13:15:50 +02:00
Merge branch 'next/cleanup' into next/soc
2017-09-05 20:29:46 -07:00
dmaengine updates for 4.13-rc1
2017-07-08 12:36:50 -07:00
ARM: stm32: Introduce MACH_STM32F469 flag
2017-06-18 20:10:27 -07:00
clocksource/drivers: Rename clocksource_probe to timer_probe
2017-06-14 11:59:16 +02:00
ARM: SoC driver updates for v4.14
2017-09-10 20:40:00 -07:00
clocksource/drivers: Rename clocksource_probe to timer_probe
2017-06-14 11:59:16 +02:00
ARM: ux500: don't select CPUFREQ_DT
2017-08-25 01:34:45 +02:00
ARM: w90x900: normalize clk API
2017-07-27 22:57:36 +02:00
clocksource/drivers: Rename clocksource_probe to timer_probe
2017-06-14 11:59:16 +02:00
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2017-09-12 06:10:44 -07:00
arm: eBPF JIT compiler
2017-08-22 09:26:43 -07:00
ARM: s3c24xx: Remove non-existing CONFIG_CPU_S3C2413
2017-07-20 07:17:43 +02:00
arm: Prevent hotplug rwsem recursion
2017-05-26 10:10:46 +02:00
This is the first pull request for the new dma-mapping subsystem
2017-07-06 19:20:54 -07:00
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2017-09-12 06:10:44 -07:00
Updates to for omap debug_ll code to use generic DEBUG_UART_8250 code.
2017-08-16 22:36:10 +02:00
ARM: Prepare Actions Semi S500
2017-06-21 18:08:41 +02:00
e33f8d3267