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| author | Jakub Sitnicki <jakub@cloudflare.com> | 2023-01-21 13:41:43 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-01-25 06:32:55 +0100 |
| commit | 5b4a79ba65a1ab479903fff2e604865d229b70a9 (patch) | |
| tree | a66f61b356c2708795f7a336ac4a5dfe5dc1239c /sound/synth | |
| parent | bpf: Add missing btf_put to register_btf_id_dtor_kfuncs (diff) | |
| download | linux-5b4a79ba65a1ab479903fff2e604865d229b70a9.tar.xz linux-5b4a79ba65a1ab479903fff2e604865d229b70a9.zip | |
bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself
sock_map proto callbacks should never call themselves by design. Protect
against bugs like [1] and break out of the recursive loop to avoid a stack
overflow in favor of a resource leak.
[1] https://lore.kernel.org/all/00000000000073b14905ef2e7401@google.com/
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/20230113-sockmap-fix-v2-1-1e0ee7ac2f90@cloudflare.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'sound/synth')
0 files changed, 0 insertions, 0 deletions