From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EC27020FE for ; Sun, 5 Nov 2023 08:40:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from mail-oi1-f200.google.com (mail-oi1-f200.google.com [209.85.167.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BCE57EE for ; Sun, 5 Nov 2023 01:40:04 -0700 (PDT) Received: by mail-oi1-f200.google.com with SMTP id 5614622812f47-3b2e7ae47d1so5333881b6e.0 for ; Sun, 05 Nov 2023 01:40:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699173604; x=1699778404; 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=ubi1y/nFwBKOxlg1T1iV5JNUkHex1InrNIEt964xeT4=; b=YNd1zLeXyFYg1hFCyMHIC5QADMSXuTYrX2BKKsl8p9lRStZgVcYEQOucH9CIoysDF7 w/rG8hOkz/KdWPT2RmS4LTLgmanITCQrvBE7x6nFwl6nFGuEN/II4e1QK92FM1uI5Qet 3bKGBPvvQrA7uumcn/wJQXEGky7TG9t73apukJHap9ANmfFqNhuWb32yIR1s7nZ2VHtP y1HgvRLJy4ucY3nWZ3EkjWm8jKqUZjBWfT8aBdDIflsa4/+ZpceCjxAq+ddt3Jd+NzCA WlRZgqKrzGvQ/6uDU3BuxgXyVmRWJvoxmIOuxgmIP7MFPQ1fz0QLzOitUIyueSuK7E7t djLQ== X-Gm-Message-State: AOJu0YzJoSwk5ZeW4G1+ytTME4xh/Cqv7IDvIbhANDwi10dVWKRFrbaY KLMZtA3ltRY2BpxaRRN4LtnG0NWrh/Or+x5q8w+ZVIpc67lL X-Google-Smtp-Source: AGHT+IGqts477963RT4MDh/f/hOQ8Is3TL1ul5XZfsXe70UO+SdEY8Tj3eLHmIToYNzq6fUjwsfSMcQJugLkZMJ9xfcI14GwIpl/ Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a54:470b:0:b0:3b2:e214:9118 with SMTP id k11-20020a54470b000000b003b2e2149118mr8543741oik.4.1699173603875; Sun, 05 Nov 2023 01:40:03 -0700 (PDT) Date: Sun, 05 Nov 2023 01:40:03 -0700 In-Reply-To: <000000000000a6429e0609331930@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001222c4060963af3a@google.com> Subject: Re: [syzbot] [btrfs?] KASAN: slab-use-after-free Read in btrfs_qgroup_account_extent From: syzbot To: clm@fb.com, dsterba@suse.com, josef@toxicpanda.com, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, wqu@suse.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit dce28769a33a95425b007f00842d6e12ffa28f83 Author: Qu Wenruo Date: Sat Sep 2 00:13:57 2023 +0000 btrfs: qgroup: use qgroup_iterator_nested to in qgroup_update_refcnt() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14f01717680000 start commit: 90b0c2b2edd1 Merge tag 'pinctrl-v6.7-1' of git://git.kerne.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=16f01717680000 console output: https://syzkaller.appspot.com/x/log.txt?x=12f01717680000 kernel config: https://syzkaller.appspot.com/x/.config?x=4cc8c922092464e7 dashboard link: https://syzkaller.appspot.com/bug?extid=e0b615318f8fcfc01ceb syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14cae708e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1354647b680000 Reported-by: syzbot+e0b615318f8fcfc01ceb@syzkaller.appspotmail.com Fixes: dce28769a33a ("btrfs: qgroup: use qgroup_iterator_nested to in qgroup_update_refcnt()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection