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| author | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-05-21 23:03:15 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-05-21 23:03:15 -0300 |
| commit | e899966f626f1f657a4a7bac736c0b9ae5a243ea (patch) | |
| tree | a4bb8362d871da67b41fee27bb85ad0bc83e0591 /arch/x86/kernel/ldt.c | |
| parent | ba0d342ecc21fbbe2f6c178f4479944d1fb34f3b (diff) | |
| parent | 4b660a7f5c8099d88d1a43d8ae138965112592c7 (diff) | |
Merge tag 'v3.15-rc6' into patchwork
Linux 3.15-rc6
* tag 'v3.15-rc6': (1314 commits)
Linux 3.15-rc6
Btrfs: send, fix incorrect ref access when using extrefs
Btrfs: fix EIO on reading file after ioctl clone works on it
scripts/checksyscalls.sh: Make renameat optional
asm-generic: Add renameat2 syscall
ia64: add renameat2 syscall
parisc: add renameat2 syscall
m68k: add renameat2 syscall
sysfs: make sure read buffer is zeroed
ahci: imx: PLL clock needs 100us to settle down
PCI: Wrong register used to check pending traffic
target: fix memory leak on XCOPY
random: fix BUG_ON caused by accounting simplification
clk: tegra: Fix wrong value written to PLLE_AUX
staging: rtl8723au: Do not reset wdev->iftype in netdev_close()
ACPI / video: Revert native brightness quirk for ThinkPad T530
staging: rtl8723au: Use correct pipe type for USB interrupts
crush: decode and initialize chooseleaf_vary_r
libceph: fix corruption when using page_count 0 page in rbd
arm64: fix pud_huge() for 2-level pagetables
...
Diffstat (limited to 'arch/x86/kernel/ldt.c')
| -rw-r--r-- | arch/x86/kernel/ldt.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c index af1d14a9ebd..dcbbaa165bd 100644 --- a/arch/x86/kernel/ldt.c +++ b/arch/x86/kernel/ldt.c @@ -20,6 +20,8 @@ #include <asm/mmu_context.h> #include <asm/syscalls.h> +int sysctl_ldt16 = 0; + #ifdef CONFIG_SMP static void flush_ldt(void *current_mm) { @@ -234,7 +236,7 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode) * IRET leaking the high bits of the kernel stack address. */ #ifdef CONFIG_X86_64 - if (!ldt_info.seg_32bit) { + if (!ldt_info.seg_32bit && !sysctl_ldt16) { error = -EINVAL; goto out_unlock; } |