From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (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 1D52E15487 for ; Sat, 13 Jan 2024 06:38:04 +0000 (UTC) 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-io1-f70.google.com with SMTP id ca18e2360f4ac-7bc3dd97ddaso646058439f.0 for ; Fri, 12 Jan 2024 22:38:04 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705127884; x=1705732684; 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=C/sGOHyENyQ7i0bMTzfDcnKoPl21TmOJ32DC/X68Sl4=; b=qVACSiPvSgLXYt6kf9b5D8mWhXcEfv8+ojsRaPhhe8GoqQCjGnhG8GjnouyzD8tcx4 Az7ByDMdj6x/CRRBqlYtVrK2AAof4guPRoSxa5y+MTpbkwEW2faNszvmuzM8vX9sqjtr wybYOGA65ysR8M/FfpMlLsUMNZCJjTfKtu/vj+dqh7XAA3BkCAlB2pAc/0Ar1ArbWhG+ NUMyOl3dx1bJIT55jdK7r13KKjEfppSOhc2/8rKjw7KiBK9H3Bek+QhPiu9gzZpkqo/M Tc3kiwSz1sLzfDcdNhzG4+uoMPqeh0RcRGFIMYFcNFiKeWlxGj+0MCGcTuAcQcN3+VSM eDfw== X-Gm-Message-State: AOJu0YxB9Pksvt/DC2mdZC2APzk/QztGMi0r7BRQVNxCLuk3AaYF6mSS 3iaWdW9sYE21/0Tmps+ni0RlMpJNG4QwXdGLVWmSIcPK75cK X-Google-Smtp-Source: AGHT+IGNM+FdG1AbyUYcw6kxC9URY0S3T+KJqSYkHLA8+jx0v5cOSRLiGSC4NszsTS++2Ts56IlniAXgBLCjDqqD3qjYpWr6CSAN Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:130a:b0:46d:1c7:3b12 with SMTP id r10-20020a056638130a00b0046d01c73b12mr146543jad.5.1705127884248; Fri, 12 Jan 2024 22:38:04 -0800 (PST) Date: Fri, 12 Jan 2024 22:38:04 -0800 In-Reply-To: <0000000000006cb174060ec34502@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d65af9060ece0537@google.com> Subject: Re: [syzbot] [f2fs?] KASAN: slab-use-after-free Read in kill_f2fs_super From: syzbot To: chao@kernel.org, ebiggers@google.com, ebiggers@kernel.org, hdanton@sina.com, jaegeuk@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fscrypt@vger.kernel.org, linux-fsdevel@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 275dca4630c165edea9abe27113766bc1173f878 Author: Eric Biggers Date: Wed Dec 27 17:14:28 2023 +0000 f2fs: move release of block devices to after kill_block_super() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16071613e80000 start commit: 70d201a40823 Merge tag 'f2fs-for-6.8-rc1' of git://git.ker.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=15071613e80000 console output: https://syzkaller.appspot.com/x/log.txt?x=11071613e80000 kernel config: https://syzkaller.appspot.com/x/.config?x=4607bc15d1c4bb90 dashboard link: https://syzkaller.appspot.com/bug?extid=8f477ac014ff5b32d81f syz repro: https://syzkaller.appspot.com/x/repro.syz?x=112b660be80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14c1df5de80000 Reported-by: syzbot+8f477ac014ff5b32d81f@syzkaller.appspotmail.com Fixes: 275dca4630c1 ("f2fs: move release of block devices to after kill_block_super()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection