tcp_bpf: properly release resources on error paths

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[ Upstream commit 68b54aeff8 ]

In the blamed commit below, I completely forgot to release the acquired
resources before erroring out in the TCP BPF code, as reported by Dan.

Address the issues by replacing the bogus return with a jump to the
relevant cleanup code.

Fixes: 419ce133ab ("tcp: allow again tcp_disconnect() when threads are waiting")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/8f99194c698bcef12666f0a9a999c58f8b1cb52c.1697557782.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Paolo Abeni 2023-10-17 17:49:51 +02:00 • committed by Greg Kroah-Hartman

parent c3e70048ac

commit 2efcdbef13

1 changed files with 12 additions and 4 deletions

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net/ipv4/tcp_bpf.c

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