From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-185.mta0.migadu.com (out-185.mta0.migadu.com [91.218.175.185]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0C66E34C121 for ; Fri, 6 Mar 2026 14:34:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.185 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772807695; cv=none; b=nrrmZua4ZkxF8tRDXxi+nR1KGKXFXAgh//zTXenmmdEIRqaKmsgthCOJ/Lj3w/bIn+puS9bqC0VMnHVlfKS/ZDpOHR8QoYk6fQmBCC3yKCo8ZvxikhIyXb7ai6QjtaMzCmQRiHwGjHhZgDvL1GqfrObRJv+9y9L59ntmlLNMPKU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772807695; c=relaxed/simple; bh=vaEoDpy1fUGpWdko4iZwCqWJ0MXp1Q1rdotkgeUPpiY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=IpnGdBafHM1ZG+hjJxmrnx51vEblmtpkW6eVlPWn0PgeIZeq8ERDfAVxE3R8zUhxPaG/OqlMi2XRKs4kMSew4i4jD5EOkV3E5/etzp3WKoBFgI5aZfq4C4n80o8sDvHg755154RHbpPGIBLmxo9HG5PJPSXM1406mxAfCC9+kqM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=hhpqnd2i; arc=none smtp.client-ip=91.218.175.185 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="hhpqnd2i" Message-ID: <92677272-5719-4c91-b4d4-d3e71e50d2c6@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1772807681; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=vaEoDpy1fUGpWdko4iZwCqWJ0MXp1Q1rdotkgeUPpiY=; b=hhpqnd2i75OSY9dCdX31aGhtVXUA0kJTD97ClADMtN1oNGF+ULiwRnO8F8I2RiQJdEKkZe k+bzJnx360NzWysp2c/u5FgbpbQsEzjf2/biERO4kpUWoR66BmXcibSYQ1i/legEZFQase nRgZuJWO3LZYTJmKL2jWCLkJFzvCrLQ= Date: Fri, 6 Mar 2026 22:34:30 +0800 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH bpf v3 4/5] selftests/bpf: Extend bpf_iter_unix to attempt deadlocking To: Michal Luczaj , John Fastabend , Jakub Sitnicki , Eric Dumazet , Kuniyuki Iwashima , Paolo Abeni , Willem de Bruijn , "David S. Miller" , Jakub Kicinski , Simon Horman , Yonghong Song , Andrii Nakryiko , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Shuah Khan , Cong Wang Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org References: <20260306-unix-proto-update-null-ptr-deref-v3-0-2f0c7410c523@rbox.co> <20260306-unix-proto-update-null-ptr-deref-v3-4-2f0c7410c523@rbox.co> X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Jiayuan Chen In-Reply-To: <20260306-unix-proto-update-null-ptr-deref-v3-4-2f0c7410c523@rbox.co> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT On 3/6/26 7:30 AM, Michal Luczaj wrote: > Updating a sockmap from a unix iterator prog may lead to a deadlock. > Piggyback on the original selftest. > > Signed-off-by: Michal Luczaj Reviewed-by: Jiayuan Chen