Toke Høiland-Jørgensen wrote:
> Syzkaller discovered that creating a hash of type devmap_hash with a large
> number of entries can hit the memory allocator limit for allocating
> contiguous memory regions. There's really no reason to use kmalloc_array()
> directly in the devmap code, so just switch it to the existing
> bpf_map_area_alloc() function that is used elsewhere.
>
> Reported-by: Xiumei Mu <xmu@xxxxxxxxxx>
> Fixes: 6f9d451ab1a3 ("xdp: Add devmap_hash map type for looking up devices by hashed index")
> Signed-off-by: Toke Høiland-Jørgensen <toke@xxxxxxxxxx>
> ---
> kernel/bpf/devmap.c | 10 ++++++----
> 1 file changed, 6 insertions(+), 4 deletions(-)
>
Acked-by: John Fastabend <john.fastabend@xxxxxxxxx>
