Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'powerpc-4.15-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fix from Michael Ellerman:
"Just one fix to correctly return SEGV_ACCERR when we take a SEGV on a
mapped region. The bug was introduced in the refactoring of the page
fault handler we did in the previous release.
Thanks to John Sperbeck"
* tag 'powerpc-4.15-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Fix SEGV on mapped region to return SEGV_ACCERR
+6
-1
+6
-1
arch/powerpc/mm/fault.c
+6
-1
arch/powerpc/mm/fault.c
···
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return __bad_area(regs, address, SEGV_MAPERR);
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}
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+
static noinline int bad_access(struct pt_regs *regs, unsigned long address)
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+
{
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+
return __bad_area(regs, address, SEGV_ACCERR);
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+
}
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+
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static int do_sigbus(struct pt_regs *regs, unsigned long address,
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unsigned int fault)
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{
···
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good_area:
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if (unlikely(access_error(is_write, is_exec, vma)))
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-
return bad_area(regs, address);
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+
return bad_access(regs, address);
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/*
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* If for any reason at all we couldn't handle the fault,