diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2022-03-08 04:49:37 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-03-08 09:30:57 -0500 |
| commit | 37b2a6510a48ca361ced679f92682b7b7d7d0330 (patch) | |
| tree | fb2d48b31b583fff946d7472ecfb8d89ad70f7fe /arch/powerpc/kvm/book3s_hv_uvmem.c | |
| parent | 3000f2e2fc855664c28d3e6a47e0373737974eb4 (diff) | |
KVM: use __vcalloc for very large allocations
Allocations whose size is related to the memslot size can be arbitrarily
large. Do not use kvzalloc/kvcalloc, as those are limited to "not crazy"
sizes that fit in 32 bits.
Cc: stable@vger.kernel.org
Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls")
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv_uvmem.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_uvmem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/book3s_hv_uvmem.c b/arch/powerpc/kvm/book3s_hv_uvmem.c index e414ca44839f..be441403925b 100644 --- a/arch/powerpc/kvm/book3s_hv_uvmem.c +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c @@ -251,7 +251,7 @@ int kvmppc_uvmem_slot_init(struct kvm *kvm, const struct kvm_memory_slot *slot) p = kzalloc(sizeof(*p), GFP_KERNEL); if (!p) return -ENOMEM; - p->pfns = vzalloc(array_size(slot->npages, sizeof(*p->pfns))); + p->pfns = vcalloc(slot->npages, sizeof(*p->pfns)); if (!p->pfns) { kfree(p); return -ENOMEM; |