From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on gnuweeb.org X-Spam-Level: * X-Spam-Status: No, score=1.3 required=5.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_SOFTFAIL,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8C140C433F5 for ; Tue, 31 May 2022 07:55:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244635AbiEaHzg (ORCPT ); Tue, 31 May 2022 03:55:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40978 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244631AbiEaHzf (ORCPT ); Tue, 31 May 2022 03:55:35 -0400 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CFE1AF5B4 for ; Tue, 31 May 2022 00:55:34 -0700 (PDT) Received: by mail-il1-f197.google.com with SMTP id c1-20020a928e01000000b002d1b20aa761so9784751ild.6 for ; Tue, 31 May 2022 00:55:34 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=cxpiXnK1IciwR0g2vIgtdnT2h0baAIafVhqTkrZDzaE=; b=wmt4VAhZZlkRWfzvSUHj3Fc/wbjN2eBmh5N9qzFCYgEEchdIeVPdVCYpYMFCkB2sOK 3HD/1I6K13BTiFknD0YCm7UiRlUFmh/2pjceQeX/3UPJutPhzxfmKqPFexCzvCzxEcdc zLN1p7bIzhx9GpwmgSFe4qG9d3HINNbwIQucW8JOZ4cMaWSCfElHmrfUS6GBIV7/w58W tLTRdBffeoZKj+ZPVjyYl5ThvTSSG/o5ieU8Chc12QEWNf/DLnKkdU0uveCDz6omJD6x cF2dkYPE7Z63tMUksaDyj9858dCAEYQWK3nCbDYhERpl9freKXvblPUNbmXZRSxHYM/X MOyA== X-Gm-Message-State: AOAM5300MiOK9PSzzr0GfTW4QPvzZLdcXYbNDWA2B4iacPB9knJg+DKB fkRUiBUdq1H97WSZQ6bu9/0E94eCcd9eXKFfGGbxSawlf9kR X-Google-Smtp-Source: ABdhPJy7wpZl+xfY5dLEpG1T3xcfxloGUoCPapohjwDNaHJ9S9Y8qeR8R68SlXci3/iDZn2DIeYPq8IGMh6gjv2S2W43m45Zwsl5 MIME-Version: 1.0 X-Received: by 2002:a05:6638:265:b0:32e:7811:af92 with SMTP id x5-20020a056638026500b0032e7811af92mr29831212jaq.169.1653983734180; Tue, 31 May 2022 00:55:34 -0700 (PDT) Date: Tue, 31 May 2022 00:55:34 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f0b26205e04a183b@google.com> Subject: [syzbot] UBSAN: array-index-out-of-bounds in io_submit_sqes From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 3b46e4e44180 Add linux-next specific files for 20220531 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=16e151f5f00000 kernel config: https://syzkaller.appspot.com/x/.config?x=ccb8d66fc9489ef dashboard link: https://syzkaller.appspot.com/bug?extid=b6c9b65b6753d333d833 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. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b6c9b65b6753d333d833@syzkaller.appspotmail.com ================================================================================ ================================================================================ UBSAN: array-index-out-of-bounds in fs/io_uring.c:8860:19 index 75 is out of range for type 'io_op_def [47]' CPU: 0 PID: 10377 Comm: syz-executor.4 Not tainted 5.18.0-next-20220531-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 io_init_req fs/io_uring.c:8860 [inline] io_submit_sqe fs/io_uring.c:8987 [inline] io_submit_sqes+0x6f0e/0x8020 fs/io_uring.c:9143 __do_sys_io_uring_enter+0x1112/0x2300 fs/io_uring.c:12077 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+0x46/0xb0 RIP: 0033:0x7fd28ac89109 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:00007fd28be25168 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 00007fd28ad9bf60 RCX: 00007fd28ac89109 RDX: 0000000000000000 RSI: 00000000000001b9 RDI: 0000000000000003 RBP: 00007fd28ace308d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe7683a70f R14: 00007fd28be25300 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.