From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f198.google.com (mail-oi1-f198.google.com [209.85.167.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 398BD28642B for ; Mon, 1 Dec 2025 22:09:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764626944; cv=none; b=Xq5jCP306DoWVknYzqU+C64MWdKvQmnMjHh9MhHM0pr9OClLD0F0ZlkGJ3xoF89xOhIugYYcMMEWw4ilCpjJpFXzR4UcyVfc3DaE5NsXuB2NlF+1SzwTDRmGURQC85ZvhWxzL+AVsap1TNLbWqhAWUoGd/5pBwZpj8ihnanPcKg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764626944; c=relaxed/simple; bh=Uw9kUV9EdAkxOYByN1jtz7gLbs5Uy6OVyl/gd7NOE5s=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=Q0ecVGbZeVqbCpc0go+BZVUnxgwYXWyQRn734bu5q+kr5JiBM0axjSDNCbbX/3VFa+928BJR5epokvf9fvmC3cDsBagikqjm4rPpkrC48cvGPxAIrjHMHaKB+lNuhlBZprXqE4Y5+tmdV+AKQfOw/3RwWg2f4tY5TjfitjTDsvA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.167.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oi1-f198.google.com with SMTP id 5614622812f47-4501f50b40cso3540843b6e.1 for ; Mon, 01 Dec 2025 14:09:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764626942; x=1765231742; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=/vkKw1aMFMsjt7cPjue/zTtcAVsiSrnVVB8Q6f0BvOw=; b=F2tzhvChQ1Df7kXJ9/u8qk1mwsDZvsIdjYwgYr6yoY+uWuLBQ6A8drmqsOjiPXZ3EQ nY1qv6H7dyFCf2izGQfXvR7rMcw87WLM0raOs/8gLfvPTkxlfmi57RGRjj7jHhENZKhN W3qWuLruK/cVTvrMQYdNXptV6TleayZ6Naot4+wRPJDJ9t16yOkTy3GZw4pKT9CRmM9+ /LtdufwmVQLdWvj/EPQVFOJuluQtYMhVXH8GnZ4yExNcyCOx2t/Vq7A0KI3S6zGWVAL3 2lvnq6TqQfXDWpngZyflczPEwGSrrNeOR+zrUoI1+kXSOXKQRsuHE8un5Ri+7ikCce3P TC9w== X-Forwarded-Encrypted: i=1; AJvYcCVW8kzzR0MafSArvYbwUEaYiMRSWUW/SM6aE+SpNAo+8GN2zNFwXs4zfFR53Z6flL82rCMW6d6H/ZjXIngK@vger.kernel.org X-Gm-Message-State: AOJu0YxCHHDNsYZ1kKSbOR00nZVV5JK3rzhwya4OdAV0FsAZLh0aVN50 4zUdGKlyiCH5K6yfMk8Ix8MCJsRHDrGFFW6+q1/CZ/LH4BiKTJzKmmFIzW8kT/7fCbZRtbnRpKl lWYucP1dABf283vQrwodG9P8vg1quRfr4Lr7ptamhF8l+Z082hThzm2WgmLs= X-Google-Smtp-Source: AGHT+IFCVn9SmBjyBhDsZVB9FNp97B50jkWsVXck4orrLX/hYWor8khmXtZ+VRasjlQ64ebDCoYjuVDiltI/XEWnqYdManqfsXti Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:210c:b0:450:a9d0:b799 with SMTP id 5614622812f47-45115a10e29mr18815486b6e.17.1764626942248; Mon, 01 Dec 2025 14:09:02 -0800 (PST) Date: Mon, 01 Dec 2025 14:09:02 -0800 In-Reply-To: <692d66d3.a70a0220.2ea503.00b2.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <692e11fe.a70a0220.d98e3.018e.GAE@google.com> Subject: Re: [syzbot] [fs?] kernel BUG in sctp_getsockopt_peeloff_common From: syzbot To: brauner@kernel.org, davem@davemloft.net, edumazet@google.com, horms@kernel.org, jack@suse.cz, kuba@kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, lucien.xin@gmail.com, marcelo.leitner@gmail.com, mjguzik@gmail.com, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 457528eb27c3a3053181939ca65998477cc39c49 Author: Christian Brauner Date: Sun Nov 23 16:33:47 2025 +0000 net/sctp: convert sctp_getsockopt_peeloff_common() to FD_PREPARE() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1136a512580000 start commit: 7d31f578f323 Add linux-next specific files for 20251128 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=1336a512580000 console output: https://syzkaller.appspot.com/x/log.txt?x=1536a512580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6336d8e94a7c517d dashboard link: https://syzkaller.appspot.com/bug?extid=984a5c208d87765b2ee7 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16a2322c580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12a3c512580000 Reported-by: syzbot+984a5c208d87765b2ee7@syzkaller.appspotmail.com Fixes: 457528eb27c3 ("net/sctp: convert sctp_getsockopt_peeloff_common() to FD_PREPARE()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection