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| author | J. Bruce Fields <bfields@redhat.com> | 2020-05-21 10:58:15 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2020-05-21 10:58:15 -0400 |
| commit | 6670ee2ef219ac9e1c836a277dda0c949ad8b1ff (patch) | |
| tree | 0eee3d97941caab0bc85f93a7653b0cfd4abf51b /kernel/bpf/arraymap.c | |
| parent | 746c6237ece641da79df09abcf87bc29f6f9665b (diff) | |
| parent | f2453978a4f2ddb1938fa80e9bf0c9d6252bd5f8 (diff) | |
| download | kernel_replicant_linux-6670ee2ef219ac9e1c836a277dda0c949ad8b1ff.tar.gz kernel_replicant_linux-6670ee2ef219ac9e1c836a277dda0c949ad8b1ff.tar.bz2 kernel_replicant_linux-6670ee2ef219ac9e1c836a277dda0c949ad8b1ff.zip | |
Merge branch 'nfsd-5.8' of git://linux-nfs.org/~cel/cel-2.6 into for-5.8-incoming
Highlights of this series:
* Remove serialization of sending RPC/RDMA Replies
* Convert the TCP socket send path to use xdr_buf::bvecs (pre-requisite for
RPC-on-TLS)
* Fix svcrdma backchannel sendto return code
* Convert a number of dprintk call sites to use tracepoints
* Fix the "suggest braces around empty body in an 'else' statement" warning
Diffstat (limited to 'kernel/bpf/arraymap.c')
| -rw-r--r-- | kernel/bpf/arraymap.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c index 95d77770353c..1d6120fd5ba6 100644 --- a/kernel/bpf/arraymap.c +++ b/kernel/bpf/arraymap.c @@ -486,7 +486,12 @@ static int array_map_mmap(struct bpf_map *map, struct vm_area_struct *vma) if (!(map->map_flags & BPF_F_MMAPABLE)) return -EINVAL; - return remap_vmalloc_range(vma, array_map_vmalloc_addr(array), pgoff); + if (vma->vm_pgoff * PAGE_SIZE + (vma->vm_end - vma->vm_start) > + PAGE_ALIGN((u64)array->map.max_entries * array->elem_size)) + return -EINVAL; + + return remap_vmalloc_range(vma, array_map_vmalloc_addr(array), + vma->vm_pgoff + pgoff); } const struct bpf_map_ops array_map_ops = { |