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/openbmc/linux/arch/x86/um/asm/ |
H A D | elf.h | fc9bea0e Tue Mar 24 10:31:24 CDT 2015 Andrey Ryabinin <a.ryabinin@samsung.com> x86, UML: fix integer overflow in ELF_ET_DYN_BASE
Almost all arches define ELF_ET_DYN_BASE as 2/3 of TASK_SIZE. Though it seems that some architectures do this in a wrong way. The problem is that 2*TASK_SIZE may overflow 32-bits so the real ELF_ET_DYN_BASE becomes wrong. Fix this overflow by dividing TASK_SIZE prior to multiplying: (TASK_SIZE / 3 * 2)
Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com> Signed-off-by: Richard Weinberger <richard@nod.at> fc9bea0e Tue Mar 24 10:31:24 CDT 2015 Andrey Ryabinin <a.ryabinin@samsung.com> x86, UML: fix integer overflow in ELF_ET_DYN_BASE Almost all arches define ELF_ET_DYN_BASE as 2/3 of TASK_SIZE. Though it seems that some architectures do this in a wrong way. The problem is that 2*TASK_SIZE may overflow 32-bits so the real ELF_ET_DYN_BASE becomes wrong. Fix this overflow by dividing TASK_SIZE prior to multiplying: (TASK_SIZE / 3 * 2) Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com> Signed-off-by: Richard Weinberger <richard@nod.at>
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