From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from www262.sakura.ne.jp (www262.sakura.ne.jp [202.181.97.72]) (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 5AAAF2BCF5; Sat, 4 Jan 2025 13:55:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=202.181.97.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735998919; cv=none; b=k8IygaA7hr8wJm/fwgdncXmUu1+SjvM86oeYb7yKdZVhJi5TzfX4W1LWQIcc9Ccf+Lrr7B6Bi8n8nqy+K5rF7k49avwq8cYwF1pd8aJ+G3ti74TmCB3nHqCzECMGZdCrbIg5Y51vZLCINfdeUaSMSxKioDx45K5qVCgopdWR7Hw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735998919; c=relaxed/simple; bh=IGk95VCEudAv4vDRoF2lx16EXGgTwg5PcB2eBxilmvA=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=aYx7mndz+ymnERIOsZq9Osr8H4jKeDcRm5sLnLiaN8AeJDQX1A/oA/IRiK0dSK0TnRmVvlUrkywSRPMJy2IsHiF7cdvr0oxGtzmID7BuzLXbJUKUTN6cfgj9qJUd5Oq3bT1MSjhNkzR3t9m7vHjZwvm7XAbhDPpKIxuFioAfcmg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=I-love.SAKURA.ne.jp; spf=pass smtp.mailfrom=I-love.SAKURA.ne.jp; arc=none smtp.client-ip=202.181.97.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=I-love.SAKURA.ne.jp Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=I-love.SAKURA.ne.jp Received: from www262.sakura.ne.jp (localhost [127.0.0.1]) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTP id 504Dt7qu096100; Sat, 4 Jan 2025 22:55:07 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from [192.168.1.6] (M106072142033.v4.enabler.ne.jp [106.72.142.33]) (authenticated bits=0) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTPSA id 504Dt78i096090 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NO); Sat, 4 Jan 2025 22:55:07 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Message-ID: Date: Sat, 4 Jan 2025 22:55:05 +0900 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [io-uring?] BUG: unable to handle kernel NULL pointer dereference in percpu_ref_put_many To: syzbot , asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <6769bf7b.050a0220.226966.0041.GAE@google.com> Content-Language: en-US From: Tetsuo Handa In-Reply-To: <6769bf7b.050a0220.226966.0041.GAE@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Anti-Virus-Server: fsav302.rs.sakura.ne.jp X-Virus-Status: clean #syz dup: general protection fault in account_kernel_stack (3)