From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (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 282F480631 for ; Sun, 1 Sep 2024 20:28:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725222509; cv=none; b=hChHd3oOwAwto0fqqVLn1oHdiTe7VlQsHR2ALw4IhX0kWHz3VAGdyX7XTGK6Jlb4TLR4toFL0YvVSYO6c8sSgVUyzcHZHCZCpOY7r/PFAz5COeUEdnBvOoDx1WOy8UGJ1Uos4R6KHd836f3mpCqjyD7P1wiBfy03vWj9UIvX8zI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725222509; c=relaxed/simple; bh=7EBJOvDTmCgNvh7cUGo5j28NKL1Nz2qMatEEIuHnw0U=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=H2SHQgzAdQ/q9O6GVXuyDGqOYM27gKb50oQdisvdDyhQHelj0MzQDcEtIz2RVe7R/NNRjbTx1VWDf+YjXx9iHQ1c4cVydwidPjzJVzSmxLuq6v2jsZmXNt56rPpLuKSyI3nDjcdTt9Qrcvg7ns+SsJubX3/6NFXM/RnpuXEd3C4= 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=209.85.166.72 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-f72.google.com with SMTP id ca18e2360f4ac-82a2723a5aeso319733539f.1 for ; Sun, 01 Sep 2024 13:28:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725222507; x=1725827307; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=zWnPjTUWwWec2L8dOHWnX8tBqet94rg3TyCYQg7utpA=; b=u8ETZrLbxzxf2Rgk7/dABzPdbljH0bpqk2YZeorv8GELnY3RcPiA/eJ+jjq3AbWNpJ shOTDIY5KyARm910feMJMKJoNym+jEt9WJ70rpnJd+e6BlEpiBIQ7VAYPJlRFO0WXSUt l2gImvxd+HW6MeiJPAXB9MqkKEnIUrPAeJRxRs76h/YMEq4Tn9No0YFvpc9SkuNBkWPf uT+Xq6VZWoPmD4sR+gmvyYvsNuBY29BemqjlkN0EAmES0zmGTv8IHsJZOgyPCIIHIgW6 QU7WUWvtBemCbcNS195AmoS77gNReLC73awnC9q7i0LGzZetO+YTv5/WCNdgIafvl9Ot H1Bg== X-Forwarded-Encrypted: i=1; AJvYcCX1/H08hxZTl0lXhJJKXCuE0G/ZfR+lyondA7DkarFEwhq4W74hcDlDm31/ucshO41EzHiGb102NEIXxNY=@vger.kernel.org X-Gm-Message-State: AOJu0YxjYCtEPIBOFc9Llir3Q3jQE0pJans8TjixpNmQV2G1qwAJgxWi gbyMJMSoLDSp/XRQFSFEDOqSfJqQIXAoQEsnEPJBrEDGn3Qkg2Ng3uSAQ8sMzEY13q3YOtyDnle i4rq8W8rkFpLTWWLN7DMRhuwZAo2Km1cQ0ZFq1e302vmhHuBezcfHi3A= X-Google-Smtp-Source: AGHT+IGEaa370Q+UzeojF0tIUd3ekWHpQvuZXhMcpI/ygBMzEQJ2dBhpNWfoxJFvl0Ji5ulxSk2PEEkznkEU2RJptY7VYorV4yrO Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:14c2:b0:81b:d4:3802 with SMTP id ca18e2360f4ac-82a2611839amr68123839f.0.1725222507196; Sun, 01 Sep 2024 13:28:27 -0700 (PDT) Date: Sun, 01 Sep 2024 13:28:27 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000b3424a062114aaa3@google.com> Subject: [syzbot] [ntfs3?] KMSAN: uninit-value in ntfs_read_bh From: syzbot To: almaz.alexandrovich@paragon-software.com, linux-kernel@vger.kernel.org, ntfs3@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 431c1646e1f8 Linux 6.11-rc6 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=137426eb980000 kernel config: https://syzkaller.appspot.com/x/.config?x=35c699864e165c51 dashboard link: https://syzkaller.appspot.com/bug?extid=7a2ba6b7b66340cff225 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/5ab3219cb5e8/disk-431c1646.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/82e6779c1851/vmlinux-431c1646.xz kernel image: https://storage.googleapis.com/syzbot-assets/d5d4a104ce36/bzImage-431c1646.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+7a2ba6b7b66340cff225@syzkaller.appspotmail.com ===================================================== BUG: KMSAN: uninit-value in ntfs_fix_post_read fs/ntfs3/fsntfs.c:180 [inline] BUG: KMSAN: uninit-value in ntfs_read_bh+0x1eb/0xde0 fs/ntfs3/fsntfs.c:1317 ntfs_fix_post_read fs/ntfs3/fsntfs.c:180 [inline] ntfs_read_bh+0x1eb/0xde0 fs/ntfs3/fsntfs.c:1317 indx_read+0x44e/0x17b0 fs/ntfs3/index.c:1067 indx_find+0xd12/0x1440 fs/ntfs3/index.c:1181 indx_update_dup+0x607/0xf80 fs/ntfs3/index.c:2666 ni_update_parent+0x12de/0x14b0 fs/ntfs3/frecord.c:3301 ni_write_inode+0x1cf4/0x1de0 fs/ntfs3/frecord.c:3392 ntfs3_write_inode+0x94/0xb0 fs/ntfs3/inode.c:1052 write_inode fs/fs-writeback.c:1497 [inline] __writeback_single_inode+0x849/0x12c0 fs/fs-writeback.c:1716 writeback_sb_inodes+0xc95/0x1e00 fs/fs-writeback.c:1947 wb_writeback+0x4df/0xea0 fs/fs-writeback.c:2127 wb_do_writeback fs/fs-writeback.c:2274 [inline] wb_workfn+0x40b/0x1940 fs/fs-writeback.c:2314 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xae0/0x1c40 kernel/workqueue.c:3312 worker_thread+0xea7/0x14d0 kernel/workqueue.c:3389 kthread+0x3e2/0x540 kernel/kthread.c:389 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Uninit was stored to memory at: ntfs_read_run_nb+0x786/0x1070 fs/ntfs3/fsntfs.c:1252 ntfs_read_bh+0x64/0xde0 fs/ntfs3/fsntfs.c:1313 indx_read+0x44e/0x17b0 fs/ntfs3/index.c:1067 indx_find+0xd12/0x1440 fs/ntfs3/index.c:1181 indx_update_dup+0x607/0xf80 fs/ntfs3/index.c:2666 ni_update_parent+0x12de/0x14b0 fs/ntfs3/frecord.c:3301 ni_write_inode+0x1cf4/0x1de0 fs/ntfs3/frecord.c:3392 ntfs3_write_inode+0x94/0xb0 fs/ntfs3/inode.c:1052 write_inode fs/fs-writeback.c:1497 [inline] __writeback_single_inode+0x849/0x12c0 fs/fs-writeback.c:1716 writeback_sb_inodes+0xc95/0x1e00 fs/fs-writeback.c:1947 wb_writeback+0x4df/0xea0 fs/fs-writeback.c:2127 wb_do_writeback fs/fs-writeback.c:2274 [inline] wb_workfn+0x40b/0x1940 fs/fs-writeback.c:2314 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xae0/0x1c40 kernel/workqueue.c:3312 worker_thread+0xea7/0x14d0 kernel/workqueue.c:3389 kthread+0x3e2/0x540 kernel/kthread.c:389 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Uninit was created at: __alloc_pages_noprof+0x9d6/0xe70 mm/page_alloc.c:4718 alloc_pages_mpol_noprof+0x299/0x990 mm/mempolicy.c:2263 alloc_pages_noprof mm/mempolicy.c:2343 [inline] folio_alloc_noprof+0x1db/0x310 mm/mempolicy.c:2350 filemap_alloc_folio_noprof+0xa6/0x440 mm/filemap.c:1008 __filemap_get_folio+0xa05/0x14b0 mm/filemap.c:1950 grow_dev_folio fs/buffer.c:1047 [inline] grow_buffers fs/buffer.c:1113 [inline] __getblk_slow fs/buffer.c:1139 [inline] bdev_getblk+0x2c9/0xab0 fs/buffer.c:1441 __getblk include/linux/buffer_head.h:381 [inline] sb_getblk include/linux/buffer_head.h:387 [inline] ntfs_get_bh+0x605/0x1190 fs/ntfs3/fsntfs.c:1365 indx_new+0x1bc/0x780 fs/ntfs3/index.c:955 indx_insert_into_root+0x2fd1/0x37d0 fs/ntfs3/index.c:1723 indx_insert_entry+0xe1d/0xee0 fs/ntfs3/index.c:1982 ntfs_create_inode+0x4391/0x4df0 fs/ntfs3/inode.c:1689 ntfs_mkdir+0x56/0x70 fs/ntfs3/namei.c:207 vfs_mkdir+0x4a0/0x780 fs/namei.c:4210 do_mkdirat+0x529/0x810 fs/namei.c:4233 __do_sys_mkdirat fs/namei.c:4248 [inline] __se_sys_mkdirat fs/namei.c:4246 [inline] __x64_sys_mkdirat+0xc6/0x120 fs/namei.c:4246 x64_sys_call+0x3a81/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:259 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f CPU: 1 UID: 0 PID: 2918 Comm: kworker/u8:9 Not tainted 6.11.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: writeback wb_workfn (flush-7:4) ===================================================== --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup