Re: [PATCH] riscv: Enable ELF-ASLR for riscv
On Thu, Jul 9, 2020 at 1:32 PM Alex Ghiti wrote: > > Hi Guo, > > Le 7/9/20 à 12:38 AM, guo...@kernel.org a écrit : > > From: Guo Ren > > > > Let riscv enable randomizes the stack, heap and binary images of > > ELF binaries. Seems it's ok at all after qemu & chip test and > > there is no founded side effect. > > > > So just simply select ARCH_HAS_ELF_RANDOMIZE :) > > > > Signed-off-by: Guo Ren > > Cc: Palmer Dabbelt > > Cc: Paul Walmsley > > Cc: Zong Li > > Cc: Greentime Hu > > --- > > arch/riscv/Kconfig | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig > > index 91bfc6c..eed6647 100644 > > --- a/arch/riscv/Kconfig > > +++ b/arch/riscv/Kconfig > > @@ -20,6 +20,7 @@ config RISCV > > select ARCH_HAS_GIGANTIC_PAGE > > select ARCH_HAS_MMIOWB > > select ARCH_HAS_PTE_SPECIAL > > + select ARCH_HAS_ELF_RANDOMIZE > > select ARCH_HAS_SET_DIRECT_MAP > > select ARCH_HAS_SET_MEMORY > > select ARCH_HAS_STRICT_KERNEL_RWX if MMU > > > > Actually it is already the case: ARCH_HAS_ELF_RANDOMIZE is already > selected by ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT. Oops :P, Thx for correcting, abandon the patch. -- Best Regards Guo Ren ML: https://lore.kernel.org/linux-csky/
Re: [PATCH] riscv: Enable ELF-ASLR for riscv
Hi Guo, Le 7/9/20 à 12:38 AM, guo...@kernel.org a écrit : From: Guo Ren Let riscv enable randomizes the stack, heap and binary images of ELF binaries. Seems it's ok at all after qemu & chip test and there is no founded side effect. So just simply select ARCH_HAS_ELF_RANDOMIZE :) Signed-off-by: Guo Ren Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Zong Li Cc: Greentime Hu --- arch/riscv/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 91bfc6c..eed6647 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -20,6 +20,7 @@ config RISCV select ARCH_HAS_GIGANTIC_PAGE select ARCH_HAS_MMIOWB select ARCH_HAS_PTE_SPECIAL + select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_SET_DIRECT_MAP select ARCH_HAS_SET_MEMORY select ARCH_HAS_STRICT_KERNEL_RWX if MMU Actually it is already the case: ARCH_HAS_ELF_RANDOMIZE is already selected by ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT. Thanks, Alex
[PATCH] riscv: Enable ELF-ASLR for riscv
From: Guo Ren Let riscv enable randomizes the stack, heap and binary images of ELF binaries. Seems it's ok at all after qemu & chip test and there is no founded side effect. So just simply select ARCH_HAS_ELF_RANDOMIZE :) Signed-off-by: Guo Ren Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Zong Li Cc: Greentime Hu --- arch/riscv/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 91bfc6c..eed6647 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -20,6 +20,7 @@ config RISCV select ARCH_HAS_GIGANTIC_PAGE select ARCH_HAS_MMIOWB select ARCH_HAS_PTE_SPECIAL + select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_SET_DIRECT_MAP select ARCH_HAS_SET_MEMORY select ARCH_HAS_STRICT_KERNEL_RWX if MMU -- 2.7.4
