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(parent: 39a8804) | patch
avr32: fix integer overflow in ELF_ET_DYN_BASE
authorAndrey Ryabinin <a.ryabinin@samsung.com>
Tue, 24 Mar 2015 15:31:22 +0000 (18:31 +0300)
committerHans-Christian Egtvedt <egtvedt@samfundet.no>
Mon, 13 Apr 2015 16:48:55 +0000 (18:48 +0200)
commit940db9e654dab0cb68b5b9ec52f627945807aac9
tree3c1d03aa5aaae3bad9d9631954e63ca42b533a41tree | snapshot
parent39a8804455fb23f09157341d3ba7db6d7ae6ee76commit | diff
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: Andrey Ryabinin <a.ryabinin@samsung.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
arch/avr32/include/asm/elf.h diff | blob | history
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