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Date:   Mon, 25 Mar 2019 17:18:16 -0700
From:   <>
To:     <>
CC:     Ralph Campbell <>,
        Craig Bergstrom <>,
        Linus Torvalds <>,
        Boris Ostrovsky <>,
        Fengguang Wu <>,
        Greg Kroah-Hartman <>,
        Hans Verkuil <>,
        Mauro Carvalho Chehab <>,
        Peter Zijlstra <>,
        Sander Eikelenboom <>,
        Sean Young <>,
        Thomas Gleixner <>,
        Ingo Molnar <>
Subject: [PATCH v2 0/1] x86/mm: Fix limit mmap() of /dev/mem to valid physical

From: Ralph Campbell <>

I was debugging with v5.1.0-rc1 and while booting I hit a
kernel BUG at arch/x86/mm/physaddr.c:27
which I fixed with the following patch but now I can't seem
to reproduce the exact setup that triggered it.
Still, it seems like a valid problem and maybe my difficulty
in reproducing it explains why others haven't seen it earlier.

Changes from v1 to v2:
 * Updated the change log and patch as suggested by Thomas Gleixner.

Ralph Campbell (1):
  x86/mm: Fix limit mmap() of /dev/mem to valid physical addresses

 arch/x86/mm/mmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


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