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| author |   Tushar Dave <tushar.n.dave@oracle.com> | 2018-08-31 23:45:16 +0200 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2018-09-02 22:29:53 +0200 |
| commit | 9db39f4d4f94b61e4b64b077f6ddb2bdfb533a88 (patch) | |
| tree | a38eb4ddd5568fcd3647115dd0cae63c8fcf3bb4 /tools/bpf | |
| parent | ipv6: don't get lwtstate twice in ip6_rt_copy_init() (diff) | |
| download | linux-dev-9db39f4d4f94b61e4b64b077f6ddb2bdfb533a88.tar.xz linux-dev-9db39f4d4f94b61e4b64b077f6ddb2bdfb533a88.zip | |
bpf: Fix bpf_msg_pull_data()
Helper bpf_msg_pull_data() mistakenly reuses variable 'offset' while
linearizing multiple scatterlist elements. Variable 'offset' is used
to find first starting scatterlist element
i.e. msg->data = sg_virt(&sg[first_sg]) + start - offset"
Use different variable name while linearizing multiple scatterlist
elements so that value contained in variable 'offset' won't get
overwritten.
Fixes: 015632bb30da ("bpf: sk_msg program helper bpf_sk_msg_pull_data")
Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/bpf')
0 files changed, 0 insertions, 0 deletions