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| author | Liu Jian <liujian56@huawei.com> | 2022-04-16 18:57:59 +0800 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2022-04-20 23:47:40 +0200 |
| commit | 45969b4152c1752089351cd6836a42a566d49bcf (patch) | |
| tree | cd2ee44a535c276c7f14836e554fba45beabb94c /tools/testing/selftests/bpf/progs/skb_load_bytes.c | |
| parent | c7655df434de1dab1af1b1ba2aad757b15e25b83 (diff) | |
| download | linux-45969b4152c1752089351cd6836a42a566d49bcf.tar.bz2 | |
bpf: Enlarge offset check value to INT_MAX in bpf_skb_{load,store}_bytes
The data length of skb frags + frag_list may be greater than 0xffff, and
skb_header_pointer can not handle negative offset. So, here INT_MAX is used
to check the validity of offset. Add the same change to the related function
skb_store_bytes.
Fixes: 05c74e5e53f6 ("bpf: add bpf_skb_load_bytes helper")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20220416105801.88708-2-liujian56@huawei.com
Diffstat (limited to 'tools/testing/selftests/bpf/progs/skb_load_bytes.c')
0 files changed, 0 insertions, 0 deletions