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| author | Ingo Molnar <mingo@kernel.org> | 2021-02-12 12:54:51 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-02-12 12:54:58 +0100 |
| commit | 62137364e3e8afcc745846c5c67cacf943149073 (patch) | |
| tree | 42f2bdee6b16e383b6e0a94cb3abc62f335d721a /kernel/bpf/stackmap.c | |
| parent | 6c80408a8a0360fa9223b8c21c0ab8ef42e88bfe (diff) | |
| parent | dcc0b49040c70ad827a7f3d58a21b01fdb14e749 (diff) | |
Merge branch 'linus' into locking/core, to pick up upstream fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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 aea96b638473..bfafbf115bf3 100644 --- a/kernel/bpf/stackmap.c +++ b/kernel/bpf/stackmap.c @@ -115,6 +115,8 @@ 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)); |