From: Linus Torvalds torvalds@linux-foundation.org
commit 6a5c5d26c4c6c3cc486fef0bf04ff9551132611b upstream.
The parameter to ZERO_PAGE() was wrong, but since all architectures except for MIPS and s390 ignore it, it wasn't noticed until 0-day reported the build error.
Fixes: 67f269b37f9b ("RDMA/ucontext: Fix regression with disassociate") Cc: stable@vger.kernel.org Cc: Andrea Arcangeli aarcange@redhat.com Cc: Leon Romanovsky leonro@mellanox.com Cc: Jason Gunthorpe jgg@mellanox.com Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/infiniband/core/uverbs_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -894,7 +894,7 @@ static vm_fault_t rdma_umap_fault(struct
/* Read only pages can just use the system zero page. */ if (!(vmf->vma->vm_flags & (VM_WRITE | VM_MAYWRITE))) { - vmf->page = ZERO_PAGE(vmf->vm_start); + vmf->page = ZERO_PAGE(vmf->address); get_page(vmf->page); return 0; }