diff options
| author | David S. Miller <davem@davemloft.net> | 2020-05-15 22:48:59 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-15 22:48:59 +0200 |
| commit | da07f52d3caf6c24c6dbffb5500f379d819e04bd (patch) | |
| tree | 836e51994554f1aeddeebb6cb6ee568944a467e7 /kernel/bpf/arraymap.c | |
| parent | Merge branch 'mptcp-fix-MP_JOIN-failure-handling' (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net (diff) | |
| download | linux-da07f52d3caf6c24c6dbffb5500f379d819e04bd.tar.xz linux-da07f52d3caf6c24c6dbffb5500f379d819e04bd.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Move the bpf verifier trace check into the new switch statement in
HEAD.
Resolve the overlapping changes in hinic, where bug fixes overlap
the addition of VF support.
Signed-off-by: David S. Miller <davem@davemloft.net>
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 1d5bb0d983b2..11584618e861 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 = { |