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riscv: Increase stack size under KASAN
commitb81d591386
upstream. KASAN requires more stack space because of compiler instrumentation. Increase stack size as other arches do. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reported-by: syzbot+0600986d88e2d4d7ebb8@syzkaller.appspotmail.com Fixes:8ad8b72721
("riscv: Add KASAN support") Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 8 additions and 2 deletions
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#include <asm/page.h>
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#include <linux/const.h>
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#ifdef CONFIG_KASAN
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#define KASAN_STACK_ORDER 1
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#else
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#define KASAN_STACK_ORDER 0
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#endif
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/* thread information allocation */
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#ifdef CONFIG_64BIT
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#define THREAD_SIZE_ORDER (2)
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#define THREAD_SIZE_ORDER (2 + KASAN_STACK_ORDER)
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#else
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#define THREAD_SIZE_ORDER (1)
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#define THREAD_SIZE_ORDER (1 + KASAN_STACK_ORDER)
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#endif
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#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
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