From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (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 5D64530F935 for ; Fri, 19 Sep 2025 12:15:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758284107; cv=none; b=FRGkdXm4qTrcn5JrM+8icGEGrxCrb2gU5XEHf0jsWQf/DJxknKlfuBXza0Qb4rEskoOmcbhNCC8JF6LtmWGufOoDZAycy7nUMVOdg/Wa1x7gVj40BTalhH/VQ9bp9RJ59BZPv2NzGTaV2IdasCCjtqpOMOXPzk8gQqd/sNOAUys= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758284107; c=relaxed/simple; bh=F52Pe6ZzrWg2xOB535H6naWI5/xjhi+X85EvgHGfIVM=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=XK7cOo252OsWxyAqnWtjSaMwrx0fqgAtBbLgH3jQGic9CH9VAVCiuRVZzMC/14NlA/NKxrvmQJMLdCsH1CXOrtMGnKjjm3jzQSJ4RPDeTBKEkctj/GY7AWcf0Yg/g9TULpb50QpCRVv07f/fIqQBmdRj1vIYxIWF8tUkKkrPc4Y= 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=209.85.166.71 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-io1-f71.google.com with SMTP id ca18e2360f4ac-88760a9d5c6so398380239f.2 for ; Fri, 19 Sep 2025 05:15:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758284105; x=1758888905; 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=AaASq3nSPIcvtUoCKBtRJSEolffSQ27wcU7lwN8Kr/k=; b=EFr4JBHGy2pp5mG51DL/xYP40gyS0tqokCG4paaSMikUDo5kKIRGdi3UtKceTn4IdV Dr3VaSEcyBsqTnGnFT8pO4JHg6v4QpPKBHQSUvDmaP5rBEn/YPPTWG57xWY5k2UpNq0x R/EFLofb9IP/NVH8jErVbDzMEoJUDV53wcfoQvITLu8bK4GUjPlVVpfH2apPgAGOtmjE G6h5j5zZ6/rUy5M+dzx4WM0yQKVscnY+gayimGi9cILvXiM/jw+XzW3ZrkORmYbqVw4H KWZUwjPaWp/7j4tz2cJUyNZqdLxTbsv/q66NJredHhcRd8SL8uioCett1RkSUJCHhEYn 5TGw== X-Forwarded-Encrypted: i=1; AJvYcCW+PpkAgcCTqqxPr+IdOK7BznrjlK4zXed2oRpqdd++o8lBfVv2X4xpxedRQYf4jQZ6p0kYD+ceSlB3xr8=@vger.kernel.org X-Gm-Message-State: AOJu0Ywbfd8jpsyIijf53RfiOOVjfvr5gazFPVtLPqEVW680fHXyqZXB FD0HpkwtovwT5J60v139lXcMnZWZcG37akM5zjh1UX0JZ8E9WZgRpYYEiMKmxxdmFgWXVo346gG TstnOC2yemjaXQNmPu/dLJ2DWeu77tecQ9o3na5EdOlultkNFm6OtWB/8ESo= X-Google-Smtp-Source: AGHT+IE1O8Xc6f8LrpO8boudUphXtvq/ClhpDSJmNM3SJDFi102WGVqC7B7iyKEup+Yu/ybdPLc+8ujPyZ6BW73fph6w1dGTVKQY Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:378f:b0:414:3168:b9fe with SMTP id e9e14a558f8ab-42481991ea9mr59920315ab.29.1758284105478; Fri, 19 Sep 2025 05:15:05 -0700 (PDT) Date: Fri, 19 Sep 2025 05:15:05 -0700 In-Reply-To: <68caf6c7.050a0220.2ff435.0597.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68cd4949.050a0220.ba58e.045c.GAE@google.com> Subject: Re: [syzbot] [smc?] general protection fault in __smc_diag_dump (4) From: syzbot To: aha310510@gmail.com, alibuda@linux.alibaba.com, davem@davemloft.net, dust.li@linux.alibaba.com, edumazet@google.com, guwen@linux.alibaba.com, horms@kernel.org, jaka@linux.ibm.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, linux-s390@vger.kernel.org, mjambigi@linux.ibm.com, netdev@vger.kernel.org, pabeni@redhat.com, sidraya@linux.ibm.com, syzkaller-bugs@googlegroups.com, tonylu@linux.alibaba.com, wenjia@linux.ibm.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 98d4435efcbf37801a3246fb53856c4b934a2613 Author: Jeongjun Park Date: Thu Aug 29 03:56:48 2024 +0000 net/smc: prevent NULL pointer dereference in txopt_get bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=131dc712580000 start commit: 5aca7966d2a7 Merge tag 'perf-tools-fixes-for-v6.17-2025-09.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=109dc712580000 console output: https://syzkaller.appspot.com/x/log.txt?x=171dc712580000 kernel config: https://syzkaller.appspot.com/x/.config?x=8f01d8629880e620 dashboard link: https://syzkaller.appspot.com/bug?extid=f775be4458668f7d220e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17aec534580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=115a9f62580000 Reported-by: syzbot+f775be4458668f7d220e@syzkaller.appspotmail.com Fixes: 98d4435efcbf ("net/smc: prevent NULL pointer dereference in txopt_get") For information about bisection process see: https://goo.gl/tpsmEJ#bisection