From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f199.google.com (mail-oi1-f199.google.com [209.85.167.199]) (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 7AD2623643F for ; Wed, 11 Jun 2025 18:25:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749666318; cv=none; b=ADECGSLJucyOU34WnlWDc48E1ppxatUvYfNnnIGgi8zIfIXeQJmElIfBJeGa/r7LCftFTyfpOHx9rFYW202lnlmYMDFa/Alv2PcAv38obHmaVCrssetRkgtNJJOwoHNdANo7YoOeaj288FajAsMVgmPQAOpcdspw7bWvIKotop0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749666318; c=relaxed/simple; bh=WkIP6q09/kO639/VA+9jUW8hJ/jqp3VXSXt+kXeZWyI=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=pZHw2+g1JMnKbQiuhikMAhkRzbB7tVmK4bDI731rznqCi5ZlgnNvlIWG8QNxtU8xmbGbprlOgn7tYqf8Hn/xSFGlKIuPT8lohGhvBIPJtBLAlNfzfuXSnkAezzZALRKkgjceBC/mHRcSJVwj0/AyULFgkfqElrkgcIdvNqvNfNE= 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=209.85.167.199 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-oi1-f199.google.com with SMTP id 5614622812f47-4066ff1aab8so122019b6e.2 for ; Wed, 11 Jun 2025 11:25:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749666313; x=1750271113; 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=TT8U0APacSFSss4rJFpVZ2Ta8ITNyPLTp/K2FTAkN1Q=; b=CtrH8ARCz8kFS6kHLjj44zUq92DK0CwV4i31mLFppmmH49HyTfL2NrZXwGbJegjiHK 1qHiuBZrrfLh9lY2YqtuwxkRR+P3qY7PDzmGTTw/GOcyej/srmYEBLb/Ubv49YMOzEQQ I/GEAb5u5+4mIm5u21sZRJDKmz620BP5wlnWvBjBk07IX04OjMdmsJhiEdJX74eOtCbN 2SC1opQfQndV1docCwx6nRCa6hmzo4q78VroNR7pfjbQetEbMwwAwdBJvoQlh4mbu30X tsxTKV3ijUpVP7LE8zIf3eYX5tks++HyQvQ24HaIs5I05Z74zIiIfO2ukgWNzIDbdnfB LXrw== X-Forwarded-Encrypted: i=1; AJvYcCXnJm0sE4uAEeTc+iTOY5bsb0GTYOYwZxhQgw9Ka+B7czPyWYTBu9WC4p8F+GDY1myr+fgysFWmn1SqGrP2lg==@vger.kernel.org X-Gm-Message-State: AOJu0YwCuBKbZbxdrEVZB2zzIChY+/hGdt/LvljuBMy/scc1DqEKBaiv Wtn6GK6tRDZ13/f7rQMY4T4ct/UPhOcq2TzVxHjJP71HRotVjgs76OBwtxYTUm4hyshaK3c3RNZ 0kRZv/aoCLyZUa5J1SyShMWZ+aasj2H0tXY67fx3CX2kwofHMkhWO2Puyx0o= X-Google-Smtp-Source: AGHT+IFB8AYaTkRJmjuKTdQ5okc5Om2wfzIkqdJ8+720iF+jrK+POAwGXletigkW6itSa4fOK92wADfO3HGVzJhQjgYi24gdkmwa Precedence: bulk X-Mailing-List: linux-bcachefs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a68:b0:3dc:875e:ed7e with SMTP id e9e14a558f8ab-3ddfa875ea0mr14392755ab.12.1749666302955; Wed, 11 Jun 2025 11:25:02 -0700 (PDT) Date: Wed, 11 Jun 2025 11:25:02 -0700 In-Reply-To: <68488453.a70a0220.27c366.0067.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6849c9fe.a00a0220.1eb5f5.00f4.GAE@google.com> Subject: Re: [syzbot] [bcachefs?] KASAN: slab-out-of-bounds Read in bch2_sb_members_v1_to_text 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 c5ae261c8095a37174e17eb13c5485cbd1b3bb20 Author: Kent Overstreet Date: Sun Jun 8 15:31:23 2025 +0000 bcachefs: Don't trust sb->nr_devices in members_to_text() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15a6ad70580000 start commit: b27cc623e01b Add linux-next specific files for 20250610 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=17a6ad70580000 console output: https://syzkaller.appspot.com/x/log.txt?x=13a6ad70580000 kernel config: https://syzkaller.appspot.com/x/.config?x=846e731334efc0f8 dashboard link: https://syzkaller.appspot.com/bug?extid=e577022d4fba380653be syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12a5e9d4580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1766260c580000 Reported-by: syzbot+e577022d4fba380653be@syzkaller.appspotmail.com Fixes: c5ae261c8095 ("bcachefs: Don't trust sb->nr_devices in members_to_text()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection