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 943C6C433FE for ; Tue, 4 Oct 2022 09:00:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229587AbiJDJAy (ORCPT ); Tue, 4 Oct 2022 05:00:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41444 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229542AbiJDJAv (ORCPT ); Tue, 4 Oct 2022 05:00:51 -0400 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B27D918E16 for ; Tue, 4 Oct 2022 02:00:50 -0700 (PDT) Received: by mail-il1-f198.google.com with SMTP id h10-20020a056e021d8a00b002f99580de6cso5630027ila.5 for ; Tue, 04 Oct 2022 02:00:50 -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; bh=xqdyea8zNXSLysP69+RS3i6tEiW68qL39ci7tqDECjE=; b=Z7C9OI1iqDDtBuVVLDHka0suY4V1DRLaM+DEBfiKPXQisMYZc3LxtHB6f+/2UiA1K3 /JuRuKdO/L5fAK82JCfE72myrZxCT2Fn9zKbgFhFZhml65KTbClYms0mNJJYEdE6TO+y UqWI5d+rCt57kqh0FMzAWwWFekRnh/crAA1yVEmZHbOEWEtpckGRizr5xJsYfJEnno4g PQV6mPFsEllWLdxzGoJCSwD/POKvywUybCCeRTDup+yrt/0p0mKvtx+d5+O2x04oSiz1 7zIaSwrX+OJuUUQhuvy0vOaGdCH0AEP2VLMsOEnMP8L7u+1sryuGStdeRXig7E5coFvV oGIw== X-Gm-Message-State: ACrzQf20GoYGzUY0AodWY4bexvc7yUkK8LQxKLbZm8yZHt4RAvDGiRh5 1R2Z/+SAL+AOlf23IHIL+PtSLjHmve0fl1jN66vo5WBmXYAK X-Google-Smtp-Source: AMsMyM4YGJ+zb3S6oI8nPoTroSqIQwW7Wk/p/FwFADn70OwBhRL2WxFBz3LwlSNyZLXx/8SKneTYz2WulvuOeLwPHd5ofbV9QXWl MIME-Version: 1.0 X-Received: by 2002:a05:6638:345b:b0:35a:21be:e7 with SMTP id q27-20020a056638345b00b0035a21be00e7mr11855651jav.311.1664874050091; Tue, 04 Oct 2022 02:00:50 -0700 (PDT) Date: Tue, 04 Oct 2022 02:00:50 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005a02da05ea31b295@google.com> Subject: [syzbot] UBSAN: shift-out-of-bounds in dbSplit 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: b357fd1c2afc Merge tag 'usb-6.0-final' of git://git.kernel.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=114398a2880000 kernel config: https://syzkaller.appspot.com/x/.config?x=ba0d23aa7e1ffaf5 dashboard link: https://syzkaller.appspot.com/bug?extid=8c777e17f74c66068ffa compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=162d1932880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16e43e24880000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/c3f38889d41b/disk-b357fd1c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8b4dacf1eadb/vmlinux-b357fd1c.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8c777e17f74c66068ffa@syzkaller.appspotmail.com loop0: detected capacity change from 0 to 32768 ================================================================================ UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2606:11 shift exponent 109 is too large for 32-bit type 'int' CPU: 0 PID: 3606 Comm: syz-executor363 Not tainted 6.0.0-rc7-syzkaller-00239-gb357fd1c2afc #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_shift_out_of_bounds+0x33d/0x3b0 lib/ubsan.c:322 dbSplit+0x1e6/0x1f0 fs/jfs/jfs_dmap.c:2606 dbAllocBits+0x532/0x9c0 fs/jfs/jfs_dmap.c:2158 dbAllocDmap fs/jfs/jfs_dmap.c:1999 [inline] dbAllocNear+0x26a/0x390 fs/jfs/jfs_dmap.c:1228 dbAlloc+0xa12/0xc90 fs/jfs/jfs_dmap.c:813 diNewExt+0xaad/0x3e00 fs/jfs/jfs_imap.c:2251 diAllocExt fs/jfs/jfs_imap.c:1945 [inline] diAllocAG+0xc6a/0x1f80 fs/jfs/jfs_imap.c:1662 diAlloc+0x3dd/0x1700 fs/jfs/jfs_imap.c:1583 ialloc+0x8c/0xa80 fs/jfs/jfs_inode.c:56 jfs_mkdir+0x141/0xb00 fs/jfs/namei.c:225 vfs_mkdir+0x3b3/0x590 fs/namei.c:4013 do_mkdirat+0x279/0x550 fs/namei.c:4038 __do_sys_mkdir fs/namei.c:4058 [inline] __se_sys_mkdir fs/namei.c:4056 [inline] __x64_sys_mkdir+0x6a/0x80 fs/namei.c:4056 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: 0033:0x7f622558edc9 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff59147288 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f622558edc9 RDX: 00007f622554d2c3 RSI: 0000000000000000 RDI: 00000000200052c0 RBP: 00007f622554e590 R08: 0000555555b3d2c0 R09: 0000000000000000 R10: 00007fff59147150 R11: 0000000000000246 R12: 00000000f8008000 R13: 0000000000000000 R14: 00080000000000fc R15: 0000000000000000 ================================================================================ --- 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches