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AJvYcCUR+QFSJNYb7vx6QsS/N5VrRuq3vRBLJqIqsPEZng8uSYVD5jmg0WvXW3sJDssct4j1ASAU+Co=@vger.kernel.org X-Gm-Message-State: AOJu0YxD83ANYYCIqYiLotJ/1hpcsXBwJRmxCtLj3FNxE3ey610dzWAZ 0SRVyWCPef3hqL9uh4t4lXuGA/ZgVN8+yZ8eW9kqFiQAPU4rYwGkp/fBgny4REk3t5kYu69Dy4q PHTIV0TWzzf/hism+lOQaALYQUAiI0Tr837pZgXrBs/FDF8f7iNC6DEJobYA= X-Google-Smtp-Source: AGHT+IG5JM3/o6FGfsB9hA9pW+iiPTtSAdodFWPBkviXe5k4KQ+1mesDPtmy+8ZNmTIw34B4iexXbVyss3CJ246tUdhyhjSRaavg Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a92:ca0d:0:b0:42e:6e3a:3075 with SMTP id e9e14a558f8ab-42e7ad84876mr59415045ab.21.1759539843090; Fri, 03 Oct 2025 18:04:03 -0700 (PDT) Date: Fri, 03 Oct 2025 18:04:03 -0700 In-Reply-To: <68c6c3b1.050a0220.2ff435.0382.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68e07283.a00a0220.102ee.0118.GAE@google.com> Subject: Re: [syzbot] [fs?] kernel BUG in qlist_free_all (2) From: syzbot To: bigeasy@linutronix.de, boqun.feng@gmail.com, bp@alien8.de, brauner@kernel.org, clrkwllms@kernel.org, dave.hansen@linux.intel.com, davem@davemloft.net, dsahern@kernel.org, edumazet@google.com, horms@kernel.org, hpa@zytor.com, jack@suse.cz, kprateek.nayak@amd.com, kuba@kernel.org, kuniyu@google.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev, luto@kernel.org, mingo@redhat.com, ncardwell@google.com, neil@brown.name, netdev@vger.kernel.org, pabeni@redhat.com, peterz@infradead.org, rostedt@goodmis.org, ryotkkr98@gmail.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, viro@zeniv.linux.org.uk, x86@kernel.org Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 3253cb49cbad4772389d6ef55be75db1f97da910 Author: Sebastian Andrzej Siewior Date: Thu Sep 4 14:25:25 2025 +0000 softirq: Allow to drop the softirq-BKL lock on PREEMPT_RT bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17566a7c580000 start commit: 7f7072574127 Merge tag 'kbuild-6.18-1' of git://git.kernel.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=14d66a7c580000 console output: https://syzkaller.appspot.com/x/log.txt?x=10d66a7c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=b78ebc06b51acd7e dashboard link: https://syzkaller.appspot.com/bug?extid=8715dd783e9b0bef43b1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16ba76e2580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17741ee2580000 Reported-by: syzbot+8715dd783e9b0bef43b1@syzkaller.appspotmail.com Fixes: 3253cb49cbad ("softirq: Allow to drop the softirq-BKL lock on PREEMPT_RT") For information about bisection process see: https://goo.gl/tpsmEJ#bisection