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| author | David S. Miller <davem@davemloft.net> | 2021-02-10 13:30:12 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-02-10 13:30:12 -0800 |
| commit | dc9d87581d464e7b7d38853d6904b70b6c920d99 (patch) | |
| tree | 15aa27fefb867814899c0a0c194adf327675ba10 /kernel/bpf/stackmap.c | |
| parent | de1db4a6ed6241e34cab0e5059d4b56f6bae39b9 (diff) | |
| parent | 291009f656e8eaebbdfd3a8d99f6b190a9ce9deb (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Diffstat (limited to 'kernel/bpf/stackmap.c')
| -rw-r--r-- | kernel/bpf/stackmap.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/bpf/stackmap.c b/kernel/bpf/stackmap.c index cabaf7db8efc..be35bfb7fb13 100644 --- a/kernel/bpf/stackmap.c +++ b/kernel/bpf/stackmap.c @@ -114,6 +114,8 @@ static struct bpf_map *stack_map_alloc(union bpf_attr *attr) /* hash table size must be power of 2 */ n_buckets = roundup_pow_of_two(attr->max_entries); + if (!n_buckets) + return ERR_PTR(-E2BIG); cost = n_buckets * sizeof(struct stack_map_bucket *) + sizeof(*smap); cost += n_buckets * (value_size + sizeof(struct stack_map_bucket)); |