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| author | James Hogan <james.hogan@imgtec.com> | 2016-08-18 10:01:27 +0100 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2016-08-19 23:08:48 -0400 |
| commit | 0fbddc006492a05e061bfa61170f155c989f6a15 (patch) | |
| tree | ee138bab80fc712e8e55abbd9442db457622e8dc /fs/jbd2/commit.c | |
| parent | 342b88eb5999fc0c2c587082c4dce6e40eb62a20 (diff) | |
MIPS: KVM: Add missing gfn range check
commit 8985d50382359e5bf118fdbefc859d0dbf6cebc7 upstream.
kvm_mips_handle_mapped_seg_tlb_fault() calculates the guest frame number
based on the guest TLB EntryLo values, however it is not range checked
to ensure it lies within the guest_pmap. If the physical memory the
guest refers to is out of range then dump the guest TLB and emit an
internal error.
Fixes: 858dd5d45733 ("KVM/MIPS32: MMU/TLB operations for the Guest.")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
[james.hogan@imgtec.com: Backport to v4.7]
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'fs/jbd2/commit.c')
0 files changed, 0 insertions, 0 deletions