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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:35:47 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:35:47 +0000 |
commit | 926b6f28303f165411f8dc876c265de64059e9a9 (patch) | |
tree | fc75a8914b7694687b43740c15957e02f964364c /kernel/bpf | |
parent | Releasing progress-linux version 6.8.9-1~progress7.99u1. (diff) | |
download | linux-926b6f28303f165411f8dc876c265de64059e9a9.tar.xz linux-926b6f28303f165411f8dc876c265de64059e9a9.zip |
Merging upstream version 6.8.11.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'kernel/bpf')
-rw-r--r-- | kernel/bpf/bloom_filter.c | 13 | ||||
-rw-r--r-- | kernel/bpf/verifier.c | 3 |
2 files changed, 14 insertions, 2 deletions
diff --git a/kernel/bpf/bloom_filter.c b/kernel/bpf/bloom_filter.c index addf3dd57b..35e1ddca74 100644 --- a/kernel/bpf/bloom_filter.c +++ b/kernel/bpf/bloom_filter.c @@ -80,6 +80,18 @@ static int bloom_map_get_next_key(struct bpf_map *map, void *key, void *next_key return -EOPNOTSUPP; } +/* Called from syscall */ +static int bloom_map_alloc_check(union bpf_attr *attr) +{ + if (attr->value_size > KMALLOC_MAX_SIZE) + /* if value_size is bigger, the user space won't be able to + * access the elements. + */ + return -E2BIG; + + return 0; +} + static struct bpf_map *bloom_map_alloc(union bpf_attr *attr) { u32 bitset_bytes, bitset_mask, nr_hash_funcs, nr_bits; @@ -191,6 +203,7 @@ static u64 bloom_map_mem_usage(const struct bpf_map *map) BTF_ID_LIST_SINGLE(bpf_bloom_map_btf_ids, struct, bpf_bloom_filter) const struct bpf_map_ops bloom_filter_map_ops = { .map_meta_equal = bpf_map_meta_equal, + .map_alloc_check = bloom_map_alloc_check, .map_alloc = bloom_map_alloc, .map_free = bloom_map_free, .map_get_next_key = bloom_map_get_next_key, diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 19e575e6b7..11bc3af33f 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -18040,8 +18040,7 @@ static int resolve_pseudo_ldimm64(struct bpf_verifier_env *env) f = fdget(fd); map = __bpf_map_get(f); if (IS_ERR(map)) { - verbose(env, "fd %d is not pointing to valid bpf_map\n", - insn[0].imm); + verbose(env, "fd %d is not pointing to valid bpf_map\n", fd); return PTR_ERR(map); } |