diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2022-03-08 12:49:37 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-23 10:41:55 +0300 |
| commit | c71e1c1a08c2454440eee3bd84112281938d5965 (patch) | |
| tree | cb4af04881d676c4a7d86fe19f6961f518200e22 /arch/powerpc | |
| parent | 95670878a612adaac74e97fc6f6a1d0aa8601de9 (diff) | |
| download | linux-c71e1c1a08c2454440eee3bd84112281938d5965.tar.xz | |
KVM: use __vcalloc for very large allocations
commit 37b2a6510a48ca361ced679f92682b7b7d7d0330 upstream.
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>
Signed-off-by: Alexander Ofitserov <oficerovas@altlinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/powerpc')
| -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 3dd58b4ee33e..5f6b3f80023d 100644 --- a/arch/powerpc/kvm/book3s_hv_uvmem.c +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c @@ -250,7 +250,7 @@ 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; |