From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (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 72F0E2FC23 for ; Sun, 6 Apr 2025 23:09:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743980945; cv=none; b=KNLZbHAD6d+3l2dl+uSEUsFirIS3NWKoIzeFzSk8hhjmTNK/DyH9XSzdNiT1aagCPkISGGcdsWicaInfarcceWsNQYNm5zSRccb4Lg0BkzkKZpS/95xw8nADxfdfsnFLTYJ4Ps1xhB2uFWrECe6fi3VnRpP5j+AMg2gt32sJMlw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743980945; c=relaxed/simple; bh=nBx/MltWEgayUVotVSMqrSbGCkiOHklfegQP9SnZgEk=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=gSdIhpnul5aXDgy3YXu26u/yd1GyMmzigjuA4Ud3bxn1xK6uwBl20ZjaLLSkFyMuQM4mRGdWAqRd3tjyJBScTNFuSS4nMnHcVd0o8jDjCkskYRIY1ZlDZ9rEfB3csNpPXFoDZysP2S9lxTP4dneAJ/jTVOgMSmCl0TFAzetD+Kc= 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=209.85.166.198 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-il1-f198.google.com with SMTP id e9e14a558f8ab-3d585d76b79so34324545ab.1 for ; Sun, 06 Apr 2025 16:09:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1743980942; x=1744585742; 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=+u0rYlPftXycLzardq4cSj1OE2iCZVoLU6ei3WvPyKI=; b=fGkYglPJECTtjGC/R5jJLTSy9hc7Ib0N6UjCIJVzm/pA5xxiJkXaf8rZ3/sE+qC3Bj I9LvWE6eJP/P43pHtfe2LkXvKnvxJg46SrBRNxKEtsubO69h3Tk69vWfcVl3OO8L8saq 0ENJvnO5AoA0BdAk1Xb1AuEK8kdO4++1VdHiSlAv2t5FlCk0Vb1pk66/fgif5nE0IfwB fZprgnJ6ShMJrTVp0ywWy+lY7grgMenO7MV3vhNPLdDNBaMWb/iY4f7ziFMBZfVxrGny 0vgWIibYS7raBAyR2Zmsokqy+/Rn11ba7S1r7MIZ+KaZSPp70dnUwAAk81CsAiZo+6Aa VY/A== X-Forwarded-Encrypted: i=1; AJvYcCXB2GrO+GdIGMVq7uliudZbeL8gBSTFwW8UDJ7eHKs4qz2HdgAYzmQxx5TqZN1ITnYmaky24IbUPGeHpQnp@vger.kernel.org X-Gm-Message-State: AOJu0Yx94I1rEh2vOjjf9K7YzTc9PjYsbrvKfi9LDLZoxfkAVwp3whhl vlRNEEWJfI7t0WJVgmDM3ERON/GDHohz7BsBBB7GBY2Rfx0dqCBoY+QgubUxlwfFR/h+FOpXP5d Z+2yxwZA47ZtejxUjp9JyznuiUHOf6o9SpsmTRIKyJMbzWPYUJTcb1C0= X-Google-Smtp-Source: AGHT+IHjPiOtD6eAAG4bJPmJWU+QCxmzHHl5XoGkvHZoAkjEA/DriSDK+8t1FrVUZldbqmOOLwht++CJOZIuegiF+zEKCHLUSsG7 Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a4d:b0:3d3:fdb8:1799 with SMTP id e9e14a558f8ab-3d6ec590c21mr75697825ab.22.1743980942635; Sun, 06 Apr 2025 16:09:02 -0700 (PDT) Date: Sun, 06 Apr 2025 16:09:02 -0700 In-Reply-To: <67392d6d.050a0220.e1c64.000a.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67f3098e.050a0220.0a13.0276.GAE@google.com> Subject: Re: [syzbot] [fs?] BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio (4) From: syzbot To: akpm@linux-foundation.org, andrii@kernel.org, ast@kernel.org, eddyz87@gmail.com, hdanton@sina.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, shakeel.butt@linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit ad41251c290dfe3c01472c94d2439a59de23fe97 Author: Andrii Nakryiko Date: Thu Aug 29 17:42:28 2024 +0000 lib/buildid: implement sleepable build_id_parse() API bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1601923f980000 start commit: a2cc6ff5ec8f Merge tag 'firewire-updates-6.15' of git://gi.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=1501923f980000 console output: https://syzkaller.appspot.com/x/log.txt?x=1101923f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=6fe3b5e6a2cb1cc2 dashboard link: https://syzkaller.appspot.com/bug?extid=09b7d050e4806540153d syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15743998580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10143404580000 Reported-by: syzbot+09b7d050e4806540153d@syzkaller.appspotmail.com Fixes: ad41251c290d ("lib/buildid: implement sleepable build_id_parse() API") For information about bisection process see: https://goo.gl/tpsmEJ#bisection