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 C97DDC4332F for ; Wed, 2 Nov 2022 04:57:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229560AbiKBE5o (ORCPT ); Wed, 2 Nov 2022 00:57:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229459AbiKBE5m (ORCPT ); Wed, 2 Nov 2022 00:57:42 -0400 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 018312408D for ; Tue, 1 Nov 2022 21:57:42 -0700 (PDT) Received: by mail-io1-f70.google.com with SMTP id i6-20020a5d88c6000000b006d088a0e518so6580402iol.19 for ; Tue, 01 Nov 2022 21:57:41 -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=sIrJULyCcKOvinRg1r2QBsSeL9J+zEjVDIrjrZIw4GE=; b=usEbcyI0f5D6s/x1Js41f7fXp/4cstu+IwPKCQ96Ulxsi3NbhwNkhlkw+D9GY/frEI /8v1Qn1oqQiamO9wbYypcWOv1vKifBBeFqp7AeJjVXzuA9YS0bY2+v2q2/7Ve3A92SYX pwqmX4T0aurx+sL04SuLbyqmpr5aGxH2nG9o3KPnY4332yhEc+q7pezwIrQHLfRBctSH SPaoRvdM77GSizVI7rxu6UP5TXWQE+7nDThfJ3EPFljFme0epuJciLU5UOm7vUS/y+2G 826Lpg7CJ8ZojxliyzpPu9GcS1ZU3hZix7G5YQ4XxjZaqalF7d/+bYzpSpboZQvHCRsw KwNA== X-Gm-Message-State: ACrzQf3nAcSa7ymZI0KrBVmF04xTs6bYzZM+5xyzdBgDqmlCUFc7x2x+ 74QpviGNS7QSjY0u856oKeQm9OxRBayGuiHDh8TQfFJI5JAS X-Google-Smtp-Source: AMsMyM6yTLH+FE1WBpO9/p4+7usG3/ua93YsWpm74Ea5iqnRQE0SxC2pSmEBI1KLlaUZH6LWBAoAHnhoxRgrXlkguk6Nn5PwMIGf MIME-Version: 1.0 X-Received: by 2002:a05:6602:3ca:b0:6a4:16a0:9862 with SMTP id g10-20020a05660203ca00b006a416a09862mr15279453iov.217.1667365061392; Tue, 01 Nov 2022 21:57:41 -0700 (PDT) Date: Tue, 01 Nov 2022 21:57:41 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000032020805ec75ae69@google.com> Subject: [syzbot] UBSAN: array-index-out-of-bounds in dbFindLeaf 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: b229b6ca5abb Merge tag 'perf-tools-fixes-for-v6.1-2022-10-.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=156d7cee880000 kernel config: https://syzkaller.appspot.com/x/.config?x=a66c6c673fb555e8 dashboard link: https://syzkaller.appspot.com/bug?extid=aea1ad91e854d0a83e04 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, 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/ba5b49fa77de/disk-b229b6ca.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/7c061f2ae4dc/vmlinux-b229b6ca.xz kernel image: https://storage.googleapis.com/syzbot-assets/bc45c1300e9b/bzImage-b229b6ca.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+aea1ad91e854d0a83e04@syzkaller.appspotmail.com loop5: detected capacity change from 0 to 96859 ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2926:29 index 1365 is out of range for type 's8 [1365]' CPU: 1 PID: 14172 Comm: syz-executor.5 Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 ubsan_epilogue+0xb/0x50 lib/ubsan.c:151 __ubsan_handle_out_of_bounds.cold+0x62/0x6c lib/ubsan.c:283 dbFindLeaf+0x21d/0x260 fs/jfs/jfs_dmap.c:2926 dbAllocDmapLev+0xa3/0x2c0 fs/jfs/jfs_dmap.c:1937 dbAllocCtl+0x131/0x780 fs/jfs/jfs_dmap.c:1793 dbAllocAG+0x8da/0xd20 fs/jfs/jfs_dmap.c:1334 dbAlloc+0x40d/0xa70 fs/jfs/jfs_dmap.c:858 dtSplitUp+0x365/0x5130 fs/jfs/jfs_dtree.c:974 dtInsert+0x82b/0xa10 fs/jfs/jfs_dtree.c:863 jfs_rename+0x1059/0x1a20 fs/jfs/namei.c:1219 vfs_rename+0x115e/0x1a90 fs/namei.c:4778 do_renameat2+0xb5e/0xc80 fs/namei.c:4929 __do_sys_rename fs/namei.c:4975 [inline] __se_sys_rename fs/namei.c:4973 [inline] __x64_sys_rename+0x7d/0xa0 fs/namei.c:4973 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f734da8b5a9 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:00007f734e81d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f734dbabf80 RCX: 00007f734da8b5a9 RDX: 0000000000000000 RSI: 0000000020005240 RDI: 00000000200001c0 RBP: 00007f734dae67b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdd3afd17f R14: 00007f734e81d300 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.