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 578DFC433FE for ; Mon, 17 Oct 2022 07:55:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230123AbiJQHzj (ORCPT ); Mon, 17 Oct 2022 03:55:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38040 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230024AbiJQHzg (ORCPT ); Mon, 17 Oct 2022 03:55:36 -0400 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 408DE53D34 for ; Mon, 17 Oct 2022 00:55:36 -0700 (PDT) Received: by mail-io1-f71.google.com with SMTP id j17-20020a5d93d1000000b006bcdc6b49cbso4049909ioo.22 for ; Mon, 17 Oct 2022 00:55:36 -0700 (PDT) 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=LybfEo/Roi1WEbT75rYrCV7d1BsMH3weiJW7j1IZqds=; b=s2NQUPhqBd99I2ROKPDHn2PXcXXWg+DATVT2FDWWOdzUjny0MzWMEGwnoSTqIngLNT hWMfBfLdgfwaPurqjf08InHXIS3xwbfd6rG3jlQneSBHlKBT1WhDs8bPYrMNH0E44KQy Q/pAElyasooMrfYZxCZYBsESK++eecF7KBiiQrVur/AYgv94xA7I84Jtn9EAD5oJu8CR mpk+yqAn0lDWmNWoIDwig8PT3y7O5p1LMQmH1wPLbCuy5F901yC34cNJ9n/xZy+iHQK9 F4xm2i+pAuhVHwzrGK5e5mWYyZeQcQJLqZ1hS3Sm5OL3s8Pk7KC58OoR1P8gAvRLO4dh eTyg== X-Gm-Message-State: ACrzQf0qJi1gS9snI4ZpFSWv8srXi4nf8W++MH2eCnbiTKaKj1ghT28Q csi/WubEfIrRTXK8bxmVI5JH4VXngIoJT3kkhdF10jOpWsK5 X-Google-Smtp-Source: AMsMyM5Z3edcvaaDmVKjK33q8v3PvwDh9SOWPTanWtmNPKIBRi99dPNR24Xb54YSZgjvrn6IjZQqPsKDwuUqSwR4fXvALZ2z1rQY MIME-Version: 1.0 X-Received: by 2002:a05:6638:4304:b0:343:5953:5fc8 with SMTP id bt4-20020a056638430400b0034359535fc8mr4711928jab.123.1665993335651; Mon, 17 Oct 2022 00:55:35 -0700 (PDT) Date: Mon, 17 Oct 2022 00:55:35 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f841fb05eb364ce6@google.com> Subject: [syzbot] UBSAN: array-index-out-of-bounds in txCommit 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: 493ffd6605b2 Merge tag 'ucount-rlimits-cleanups-for-v5.19'.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15d11444880000 kernel config: https://syzkaller.appspot.com/x/.config?x=d19f5d16783f901 dashboard link: https://syzkaller.appspot.com/bug?extid=0558d19c373e44da3c18 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/f1ff6481e26f/disk-493ffd66.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/101bd3c7ae47/vmlinux-493ffd66.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+0558d19c373e44da3c18@syzkaller.appspotmail.com ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_txnmgr.c:1738:5 index 18 is out of range for type 'xad_t [18]' CPU: 1 PID: 11903 Comm: syz-executor.3 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 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 xtLog fs/jfs/jfs_txnmgr.c:1738 [inline] txLog fs/jfs/jfs_txnmgr.c:1391 [inline] txCommit+0x3fb5/0x6d40 fs/jfs/jfs_txnmgr.c:1259 jfs_commit_inode+0x342/0x5a0 fs/jfs/inode.c:108 extAlloc+0xc93/0xff0 fs/jfs/jfs_extent.c:172 jfs_get_block+0x342/0xce0 fs/jfs/inode.c:248 get_more_blocks fs/direct-io.c:665 [inline] do_direct_IO fs/direct-io.c:953 [inline] __blockdev_direct_IO+0x17e7/0x3c90 fs/direct-io.c:1266 blockdev_direct_IO include/linux/fs.h:3204 [inline] jfs_direct_IO+0xf6/0x1e0 fs/jfs/inode.c:336 generic_file_direct_write+0x294/0x610 mm/filemap.c:3669 __generic_file_write_iter+0x1c4/0x400 mm/filemap.c:3829 generic_file_write_iter+0xab/0x310 mm/filemap.c:3905 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: 0033:0x7fb2a168b5a9 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:00007fb2a05bc168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fb2a17ac120 RCX: 00007fb2a168b5a9 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000003 RBP: 00007fb2a16e6580 R08: 0000000000000000 R09: 0000000000000000 R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd4c0de95f R14: 00007fb2a05bc300 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.