diff options
| author | Joe Stringer <joe@wand.net.nz> | 2020-04-07 20:35:40 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-04-09 01:02:14 +0200 |
| commit | 8e368dc72e86ad1e1a612416f32d5ad22dca88bc (patch) | |
| tree | 654cd7e341b07cb25b2a1b224d7c900f26ebce91 /arch/riscv/net/bpf_jit_comp64.c | |
| parent | eb203f4b89c1a1a779d9781e49b568d2a712abc6 (diff) | |
bpf: Fix use of sk->sk_reuseport from sk_assign
In testing, we found that for request sockets the sk->sk_reuseport field
may yet be uninitialized, which caused bpf_sk_assign() to randomly
succeed or return -ESOCKTNOSUPPORT when handling the forward ACK in a
three-way handshake.
Fix it by only applying the reuseport check for full sockets.
Fixes: cf7fbe660f2d ("bpf: Add socket assign support")
Signed-off-by: Joe Stringer <joe@wand.net.nz>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200408033540.10339-1-joe@wand.net.nz
Diffstat (limited to 'arch/riscv/net/bpf_jit_comp64.c')
0 files changed, 0 insertions, 0 deletions