diff options
| author | Hou Tao <houtao1@huawei.com> | 2022-08-10 10:05:34 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-08-10 19:12:48 +0200 |
| commit | 52bd05eb7c88e1ad8541a48873188ccebca9da26 (patch) | |
| tree | 7975da978dd08673c361bc396bc9a47eda2649b5 /net | |
| parent | bpf: Acquire map uref in .init_seq_private for sock{map,hash} iterator (diff) | |
| download | linux-52bd05eb7c88e1ad8541a48873188ccebca9da26.tar.xz linux-52bd05eb7c88e1ad8541a48873188ccebca9da26.zip | |
bpf: Check the validity of max_rdwr_access for sock local storage map iterator
The value of sock local storage map is writable in map iterator, so check
max_rdwr_access instead of max_rdonly_access.
Fixes: 5ce6e77c7edf ("bpf: Implement bpf iterator for sock local storage map")
Signed-off-by: Hou Tao <houtao1@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/r/20220810080538.1845898-6-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/bpf_sk_storage.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/bpf_sk_storage.c b/net/core/bpf_sk_storage.c index 83b89ba824d7..1b7f385643b4 100644 --- a/net/core/bpf_sk_storage.c +++ b/net/core/bpf_sk_storage.c @@ -904,7 +904,7 @@ static int bpf_iter_attach_map(struct bpf_prog *prog, if (map->map_type != BPF_MAP_TYPE_SK_STORAGE) goto put_map; - if (prog->aux->max_rdonly_access > map->value_size) { + if (prog->aux->max_rdwr_access > map->value_size) { err = -EACCES; goto put_map; } |