From: Oliver Upton Date: Wed, 21 Feb 2024 09:27:32 +0000 (+0000) Subject: KVM: arm64: vgic-its: Test for valid IRQ in MOVALL handler X-Git-Tag: v5.10.211~46 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=615af9cb3e7079181c49002976c8aff0f6e7955e;p=thirdparty%2Fkernel%2Fstable.git KVM: arm64: vgic-its: Test for valid IRQ in MOVALL handler commit 85a71ee9a0700f6c18862ef3b0011ed9dad99aca upstream. It is possible that an LPI mapped in a different ITS gets unmapped while handling the MOVALL command. If that is the case, there is no state that can be migrated to the destination. Silently ignore it and continue migrating other LPIs. Cc: stable@vger.kernel.org Fixes: ff9c114394aa ("KVM: arm/arm64: GICv4: Handle MOVALL applied to a vPE") Signed-off-by: Oliver Upton Link: https://lore.kernel.org/r/20240221092732.4126848-3-oliver.upton@linux.dev Signed-off-by: Marc Zyngier Signed-off-by: Greg Kroah-Hartman --- diff --git a/arch/arm64/kvm/vgic/vgic-its.c b/arch/arm64/kvm/vgic/vgic-its.c index 62f261b8eb62f..8ae7096d47795 100644 --- a/arch/arm64/kvm/vgic/vgic-its.c +++ b/arch/arm64/kvm/vgic/vgic-its.c @@ -1374,6 +1374,8 @@ static int vgic_its_cmd_handle_movall(struct kvm *kvm, struct vgic_its *its, for (i = 0; i < irq_count; i++) { irq = vgic_get_irq(kvm, NULL, intids[i]); + if (!irq) + continue; update_affinity(irq, vcpu2);