Messages in this thread Patch in this message | | | From | Luis Henriques <> | Subject | [3.16.y-ckt stable] Patch "MIPS: KVM: Do not sign extend on unsigned MMIO load" has been added to staging queue | Date | Mon, 22 Jun 2015 16:14:51 +0100 |
| |
This is a note to let you know that I have just added a patch titled
MIPS: KVM: Do not sign extend on unsigned MMIO load
to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree which can be found at:
http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue
This patch is scheduled to be released in version 3.16.7-ckt14.
If you, or anyone else, feels it should not be added to this tree, please reply to this email.
For more information about the 3.16.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks. -Luis
------
From 4c4ae634491a443d4ec81217de248b194be8ad7a Mon Sep 17 00:00:00 2001 From: Nicholas Mc Guire <hofrat@osadl.org> Date: Thu, 7 May 2015 14:47:50 +0200 Subject: MIPS: KVM: Do not sign extend on unsigned MMIO load
commit ed9244e6c534612d2b5ae47feab2f55a0d4b4ced upstream.
Fix possible unintended sign extension in unsigned MMIO loads by casting to uint16_t in the case of mmio_needed != 2.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Reviewed-by: James Hogan <james.hogan@imgtec.com> Tested-by: James Hogan <james.hogan@imgtec.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9985/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> [ luis: backported to 3.16: - file rename: emulate.c -> kvm_mips_emul.c ] Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- arch/mips/kvm/kvm_mips_emul.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/kvm/kvm_mips_emul.c b/arch/mips/kvm/kvm_mips_emul.c index 2071472bc3c4..18b4e2fdae33 100644 --- a/arch/mips/kvm/kvm_mips_emul.c +++ b/arch/mips/kvm/kvm_mips_emul.c @@ -2130,7 +2130,7 @@ kvm_mips_complete_mmio_load(struct kvm_vcpu *vcpu, struct kvm_run *run) if (vcpu->mmio_needed == 2) *gpr = *(int16_t *) run->mmio.data; else - *gpr = *(int16_t *) run->mmio.data; + *gpr = *(uint16_t *)run->mmio.data;
break; case 1: -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/
| |