From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 37F20C4332F for ; Mon, 14 Nov 2022 03:34:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235720AbiKNDer (ORCPT ); Sun, 13 Nov 2022 22:34:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57584 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235348AbiKNDep (ORCPT ); Sun, 13 Nov 2022 22:34:45 -0500 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3C4515A0E for ; Sun, 13 Nov 2022 19:34:44 -0800 (PST) Received: by mail-il1-f200.google.com with SMTP id q6-20020a056e020c2600b00302664fc72cso405082ilg.14 for ; Sun, 13 Nov 2022 19:34:44 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=kAMMFntmaYX8HHHcoBR1z0jYIUhesZs9GrMDen8+P0I=; b=14moN0B+T1AJ7bMTVR0zQsaBj97E7529j7H0wKIizg7bvijtOzPS5fBrCt4lKN+ZrK zTWL6AyXwvQsoYYD+AyqsDTv3C9zggkQJNZtbIYyRtuOoVXfGzJcdtzN1h5t7W5XS0zH DgHnS59rhzQsgBjAHX7jjmY2/GbJ7ERW/XQc0abPnMHinMI4o/R0/vwyX5uLCjO3LYQd c9OJI7W9BXCEk02iUUKs8+cmFP4Ch22FJAPtP1+JFonOVFruVr9ryXXtgOI3hze85V0/ bYn4UCtY0x44xFFLiASHq/yA/nQo+QpAz/VUI48o/4gijLCBESS7C2RjPToqTCvFvCR1 FL8w== X-Gm-Message-State: ANoB5pmjiv5THXDRv+htuL2q59bK9d9ZYJPHWEsiv1I9nshd74zTTUsf IW8Stsm8qPqAegQ4rctxETuWwxFSQvyp530Mfz5C6+x2WH3J X-Google-Smtp-Source: AA0mqf5ZNiwfE/qRoN4DEHPzmEsXTgglP5piaGa+wS3V+hQ7UOF8GnQWE+XvY52m4Q4ovF1VlXDu2dWE7tcgmaS4T02wmJWaLeQv MIME-Version: 1.0 X-Received: by 2002:a6b:ef0e:0:b0:6c0:3ade:1c3e with SMTP id k14-20020a6bef0e000000b006c03ade1c3emr4723664ioh.63.1668396884194; Sun, 13 Nov 2022 19:34:44 -0800 (PST) Date: Sun, 13 Nov 2022 19:34:44 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000a078ac05ed65eb00@google.com> Subject: [syzbot] UBSAN: array-index-out-of-bounds in xtTruncate From: syzbot To: jfs-discussion@lists.sourceforge.net, linux-kernel@vger.kernel.org, shaggy@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: f67dd6ce0723 Merge tag 'slab-for-6.1-rc4-fixes' of git://g.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=102b0615880000 kernel config: https://syzkaller.appspot.com/x/.config?x=771b06c41e08f95b dashboard link: https://syzkaller.appspot.com/bug?extid=75c177aa1291e7fe423d compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0ddcda4f997e/disk-f67dd6ce.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ced709971cf5/vmlinux-f67dd6ce.xz kernel image: https://storage.googleapis.com/syzbot-assets/d35fb69a1976/bzImage-f67dd6ce.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+75c177aa1291e7fe423d@syzkaller.appspotmail.com ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_xtree.c:2304:9 index 19 is out of range for type 'xad_t [18]' CPU: 0 PID: 4605 Comm: syz-executor.4 Not tainted 6.1.0-rc4-syzkaller-00020-gf67dd6ce0723 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_out_of_bounds+0xdb/0x130 lib/ubsan.c:283 xtTruncate+0x2778/0x32d0 fs/jfs/jfs_xtree.c:2304 jfs_truncate_nolock+0x192/0x390 fs/jfs/inode.c:393 jfs_truncate+0xc6/0x140 fs/jfs/inode.c:417 jfs_direct_IO+0x1b0/0x1e0 fs/jfs/inode.c:347 generic_file_direct_write+0x294/0x610 mm/filemap.c:3677 __generic_file_write_iter+0x1c4/0x400 mm/filemap.c:3837 generic_file_write_iter+0xab/0x310 mm/filemap.c:3913 do_iter_write+0x6c2/0xc20 fs/read_write.c:861 iter_file_splice_write+0x7fc/0xfc0 fs/splice.c:686 do_splice_from fs/splice.c:764 [inline] direct_splice_actor+0xe6/0x1c0 fs/splice.c:931 splice_direct_to_actor+0x4e4/0xc00 fs/splice.c:886 do_splice_direct+0x279/0x3d0 fs/splice.c:974 do_sendfile+0x5fb/0xf80 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x14f/0x1b0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f22df88b639 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f22e0602168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f22df9abf80 RCX: 00007f22df88b639 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 00007f22df8e67e1 R08: 0000000000000000 R09: 0000000000000000 R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc01280fbf R14: 00007f22e0602300 R15: 0000000000022000 ================================================================================ --- 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.