Commit 940db9e6 authored by Andrey Ryabinin's avatar Andrey Ryabinin Committed by Hans-Christian Egtvedt
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avr32: 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: default avatarAndrey Ryabinin <>
Acked-by: default avatarHans-Christian Egtvedt <>
parent 39a88044
......@@ -84,7 +84,7 @@ typedef struct user_fpu_struct elf_fpregset_t;
the loader. We need to make sure that it is out of the way of the program
that it will "exec", and that there is sufficient room for the brk. */
#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
/* This yields a mask that user programs can use to figure out what
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