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| author | Paolo Abeni <[email protected]> | 2021-05-25 21:23:10 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2021-05-25 22:56:20 +0000 |
| commit | 20b5759f21cf53a0e03031bd3fe539e332b13568 (patch) | |
| tree | 1e4608d2155e141f7edfd383e65e9e4462f087f8 /tools/bpf/bpftool/prog.c | |
| parent | nfp: update maintainer and mailing list addresses (diff) | |
| download | kernel-20b5759f21cf53a0e03031bd3fe539e332b13568.tar.gz kernel-20b5759f21cf53a0e03031bd3fe539e332b13568.zip | |
mptcp: avoid OOB access in setsockopt()
We can't use tcp_set_congestion_control() on an mptcp socket, as
such function can end-up accessing a tcp-specific field -
prior_ssthresh - causing an OOB access.
To allow propagating the correct ca algo on subflow, cache the ca
name at initialization time.
Additionally avoid overriding the user-selected CA (if any) at
clone time.
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/182
Fixes: aa1fbd94e5c7 ("mptcp: sockopt: add TCP_CONGESTION and TCP_INFO")
Acked-by: Florian Westphal <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
Signed-off-by: Mat Martineau <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/bpf/bpftool/prog.c')
0 files changed, 0 insertions, 0 deletions