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AJvYcCXn8H1iEUHOc/SYmPDsBHoREgNqApBG6fi9jdjGuFx1qJsLnIn4IPOIoMcab9ShRHBvKUtivH4=@vger.kernel.org X-Gm-Message-State: AOJu0YxXrg1WlzWgYWoM9WlDd9572KIubIObl1BZMRfUVVsLMsSNoadu HnsTtOioJZ1nYHKmQJ23OZ1ir2E64c/YqLePvGGsAtDBaccn+MH8sKA1f8WEl5Z7DkL/KCyQHCM ZqhFPbULNH8rlR/iAf1Jcv2TzNqIp+hHjIbWq5Tsb2a2wNY4bu9tScVA= X-Google-Smtp-Source: AGHT+IEV++OBemK7/oFbA+zcWD9z7Jd4TCNWsuVgFp+gXUej/hQrOCotr3aDAFXs7fQWo0SESxSbW4xwFzd/0chZe4t8TncsWIYw Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:b4c:b0:39a:e900:7e3e with SMTP id e9e14a558f8ab-39e3c9f0512mr10870965ab.3.1724662224873; Mon, 26 Aug 2024 01:50:24 -0700 (PDT) Date: Mon, 26 Aug 2024 01:50:24 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000045769206209237db@google.com> Subject: [syzbot] [net?] WARNING: lock held when returning to user space in ethnl_act_cable_test From: syzbot To: andrew@lunn.ch, christophe.leroy@csgroup.eu, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux@treblig.org, maxime.chevallier@bootlin.com, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: f9db28bb09f4 Merge branch 'net-redundant-judgments' git tree: net-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=115eb015980000 kernel config: https://syzkaller.appspot.com/x/.config?x=df2f0ed7e30a639d dashboard link: https://syzkaller.appspot.com/bug?extid=c641161e97237326ea74 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17d2d609980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1741fbf5980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/585e02f7fe7b/disk-f9db28bb.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/b9faf5d24900/vmlinux-f9db28bb.xz kernel image: https://storage.googleapis.com/syzbot-assets/f9df5868ea4f/bzImage-f9db28bb.xz The issue was bisected to: commit 3688ff3077d3f334cee1d4b61d8bfb6a9508c2d2 Author: Maxime Chevallier Date: Wed Aug 21 15:10:05 2024 +0000 net: ethtool: cable-test: Target the command to the requested PHY bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=146fcd8d980000 final oops: https://syzkaller.appspot.com/x/report.txt?x=166fcd8d980000 console output: https://syzkaller.appspot.com/x/log.txt?x=126fcd8d980000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c641161e97237326ea74@syzkaller.appspotmail.com Fixes: 3688ff3077d3 ("net: ethtool: cable-test: Target the command to the requested PHY") ================================================ WARNING: lock held when returning to user space! 6.11.0-rc4-syzkaller-00565-gf9db28bb09f4 #0 Not tainted ------------------------------------------------ syz-executor124/5240 is leaving the kernel with locks still held! 1 lock held by syz-executor124/5240: #0: ffffffff8fc84b88 (rtnl_mutex){+.+.}-{3:3}, at: ethnl_act_cable_test+0x187/0x3f0 net/ethtool/cabletest.c:74 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup