From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (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 0517B233158 for ; Sun, 1 Jun 2025 18:07:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748801225; cv=none; b=ciy5vLKySYk8IgEDXLyWmjny1egE+sXBS4qvHxRu/74kdBQ6wi5dmPYjeoViPFz3o4kYkhTIrcH9GjhmFHLCufy/vhwD3YCmHF9uVeO7ynELcI82E9F4oHTXOrK49m4mJKJpSal2UxfyBE04fsbztl0tuXa5C8QP1Omnw/wy+Ow= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748801225; c=relaxed/simple; bh=4wULl+5RvIxm65tgsYk25Tb3WtkIkAmkkUbhv3DxiIg=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=egDrunYEza6Lu9FlanS10qmcv7xVJV8iLEHqm9B0FMMRhCRSTu0hXQoBU7uNkg30hr8tx6A4S1PFOq+GPR+6Q5AFjC81p7MzUegQsDxokOvGouA2+kQ0GLPKriQlpZ79Ll6NkIZ9mIsK322knZhK0DV83XZmtJvwoaGPWzq7NMo= 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=209.85.166.197 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-il1-f197.google.com with SMTP id e9e14a558f8ab-3dc8ab0ac67so69465985ab.2 for ; Sun, 01 Jun 2025 11:07:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1748801223; x=1749406023; 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=MNH+e2wBF7Xg3jnLnbLmzq10vNKY3b0x8+Cx5vnhySs=; b=INTcbEvtESa2G5S24y39SF7juSZ2//If5PmuA3UT/7VvWxEV4gCxND1A7IWLrVGxw0 y/YnK0ZFIxsDfNo4cQcJHjf4fYDt4nKcEPMtJDM1rt9nUujxRbptS8isjQG1YA+icRHl n6xDV4V/M53+Jw+1zhYLTtosaFHU5IHyO+hi6XIjxZnmYMHOvJU7YlnhtwPEpo/roSiI WwRQ2EjVgWZpvWks6WkrRyOXOQSIMk7YOBjAj9IoSAQ8Dc+uRSQx6pzXYd1n56VwQrJ9 NIM/kH3vKuJEgyG8+qX/OT+NLSFNbUngk+YwmKciQXtgmN8mcUnHbJ8P2tvb8zsci8+B nL0Q== X-Forwarded-Encrypted: i=1; AJvYcCXaHQ2wDNjOTbLlr0d701nGBR9KPgpIRP3qjIsdImlrR0RHc7O9uKmvsCea0zstmx/AXhKJrc9WyDgdTDi3kg==@vger.kernel.org X-Gm-Message-State: AOJu0Yzmrk62XM5snqK3kFRR7M3fK2Rt7m1v1eWbKa93qBL2jiBgWD5i xbtuObUo9YZY2cCg1bDHlQvwoINn912YKzZKpKIqZiYYjOTIaEpsMA29yeXoKWRNoPwImhQK0VW 6vhszuc++p4eOt7MTBVbsSwPqSqMogSLfKsW5uSyPEeR2hfS/yVCBswHlesY= X-Google-Smtp-Source: AGHT+IEMWdDsR32/1HHtiM30II6+NDaNfaUq6pMIFs8bj1cefae93/pi9JC4HZPpn87MXCCPym1NDyWJ7SYtMnsq4bAnkbxdG0lU Precedence: bulk X-Mailing-List: linux-bcachefs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1488:b0:3dc:7a9a:44d5 with SMTP id e9e14a558f8ab-3dd99c8bb62mr137174545ab.22.1748801223138; Sun, 01 Jun 2025 11:07:03 -0700 (PDT) Date: Sun, 01 Jun 2025 11:07:03 -0700 In-Reply-To: <683bede4.a00a0220.d8eae.002a.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <683c96c7.a00a0220.d8eae.0033.GAE@google.com> Subject: Re: [syzbot] [bcachefs?] BUG: unable to handle kernel NULL pointer dereference in mempool_alloc_noprof (2) From: syzbot To: kent.overstreet@linux.dev, linux-bcachefs@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit d4d71b58e5139afc5f9bda0139b99404eb216d8a Author: Kent Overstreet Date: Sat Apr 5 21:36:04 2025 +0000 bcachefs: RO mounts now use less memory bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10914c82580000 start commit: 4cb6c8af8591 selftests/filesystems: Fix build of anon_inod.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=12914c82580000 console output: https://syzkaller.appspot.com/x/log.txt?x=14914c82580000 kernel config: https://syzkaller.appspot.com/x/.config?x=e413b6de2bc0230 dashboard link: https://syzkaller.appspot.com/bug?extid=56edda805363e0a093b8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11dd7ed4580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=113f9970580000 Reported-by: syzbot+56edda805363e0a093b8@syzkaller.appspotmail.com Fixes: d4d71b58e513 ("bcachefs: RO mounts now use less memory") For information about bisection process see: https://goo.gl/tpsmEJ#bisection