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Ard Biesheuvel f91b1feada arm64/efi: map the entire UEFI vendor string before reading it 
At boot, the UTF-16 UEFI vendor string is copied from the system
table into a char array with a size of 100 bytes. However, this
size of 100 bytes is also used for memremapping() the source,
which may not be sufficient if the vendor string exceeds 50
UTF-16 characters, and the placement of the vendor string inside
a 4 KB page happens to leave the end unmapped.

So use the correct '100 * sizeof(efi_char16_t)' for the size of
the mapping.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Fixes: f84d02755f ("arm64: add EFI runtime services")
Cc: <stable@vger.kernel.org> # 3.16+
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
 		2015-07-27 18:00:05 +01:00
..
boot arm64: dts: add device tree for ARM SMM-A53x2 on LogicTile Express 20MG 2015-07-08 14:44:56 -07:00
configs arm64: defconfig: Add Ceva ahci to the defconfig 2015-07-06 17:22:59 +01:00
crypto Merge branch 'mvebu/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc 2015-06-19 22:07:07 +08:00
include mm: clean up per architecture MM hook header files 2015-07-17 16:39:53 -07:00
kernel arm64/efi: map the entire UEFI vendor string before reading it 2015-07-27 18:00:05 +01:00
kvm arm64 updates for 4.2, mostly refactoring/clean-up: 2015-06-24 10:02:15 -07:00
lib
…
mm arm64: remove another unnecessary libfdt include path 2015-07-06 17:15:14 +01:00
net arm64: bpf: fix endianness conversion bugs 2015-06-26 14:15:39 +01:00
xen
…
Kconfig arm64: Keep the ARM64 Kconfig selects sorted 2015-07-07 17:15:39 +01:00
Kconfig.debug coresight: moving to new "hwtracing" directory 2015-04-03 16:17:04 +02:00
Makefile arm64: Adjust EFI libstub object include logic 2015-03-17 16:59:47 +00:00