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bpf: hashtab: fix 32-bit overflow in memory usage calculation #10230

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bpf: hashtab: fix 32-bit overflow in memory usage calculation #10230

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2 changes: 1 addition & 1 deletion kernel/bpf/hashtab.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2199,7 +2199,7 @@ static long bpf_for_each_hash_elem(struct bpf_map *map, bpf_callback_t callback_
static u64 htab_map_mem_usage(const struct bpf_map *map)
{
struct bpf_htab *htab = container_of(map, struct bpf_htab, map);
u32 value_size = round_up(htab->map.value_size, 8);
u64 value_size = round_up(htab->map.value_size, 8);
bool prealloc = htab_is_prealloc(htab);
bool percpu = htab_is_percpu(htab);
bool lru = htab_is_lru(htab);
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