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 C7F80C761AF for ; Sun, 2 Apr 2023 16:21:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230462AbjDBQVp (ORCPT ); Sun, 2 Apr 2023 12:21:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50290 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230383AbjDBQVn (ORCPT ); Sun, 2 Apr 2023 12:21:43 -0400 Received: from mail-il1-f205.google.com (mail-il1-f205.google.com [209.85.166.205]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 82B59A5E1 for ; Sun, 2 Apr 2023 09:21:42 -0700 (PDT) Received: by mail-il1-f205.google.com with SMTP id n9-20020a056e02100900b00325c9240af7so17673183ilj.10 for ; Sun, 02 Apr 2023 09:21:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680452501; x=1683044501; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=x07zT0iCo8wKSCVHAjMWe9fzPd0xcWscECCQqfth9ec=; b=8BYRUCvmxy+hgaVp9RQ5N6XPmaQp9dO3oTp1yGj3gLgNPs6ENPCZKgiNkYHMIigbIo vNK+NdLXRcx8KsCtg/WhDm9diQjb85rXbZCXwy5NAhkB2AcTy/BsgZ1li6NUs41m3ZRH 986lYyptCmQByGbHovpMts9zk7fp6UUuJQ1wTi+uBnqu3Pgm/BgNeCJl0+0gwz5phP+G V93HbuXcAXfejHmIJa093985p4kelvZc9xTni5d8enPm0qI4VwH+83B5F7UGbp4YjwW5 iWkO12BbKfIcqFcydIFNOqLUyXpukoTOoOAl+N4tKvgbyHWO0kmZWQ+ExXnT1OdBrxtK nVFg== X-Gm-Message-State: AO0yUKWbx3MLEgJNcoNWLqRhnHYU8PLrCH8kYIMCmSfX0xtI2PVckXN3 CIQpyP7cORGCxZmhkIXH4x1/iJELyO1xpNwqxqAiqOBBAsRZ X-Google-Smtp-Source: AK7set/bi4Wd8lT1rCMiTGzNOyybxOUDZmKUSa9kdAtlHK8uWQPRWN6MUSWo+nKl5CElpWkF1FRUS2BSDjTGx3V8qNzYyMWb71Em MIME-Version: 1.0 X-Received: by 2002:a5e:db05:0:b0:745:6788:149f with SMTP id q5-20020a5edb05000000b007456788149fmr12143135iop.0.1680452501731; Sun, 02 Apr 2023 09:21:41 -0700 (PDT) Date: Sun, 02 Apr 2023 09:21:41 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006d817e05f85cd6a8@google.com> Subject: [syzbot] [nfc?] UBSAN: shift-out-of-bounds in nci_activate_target From: syzbot To: davem@davemloft.net, edumazet@google.com, krzysztof.kozlowski@linaro.org, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-nfc@lists.01.org, netdev@vger.kernel.org, pabeni@redhat.com, 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: 198925fae644 Add linux-next specific files for 20230329 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=1174a6d1c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=91e70627549fd509 dashboard link: https://syzkaller.appspot.com/bug?extid=0839b78e119aae1fec78 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/53c685bee82f/disk-198925fa.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/45e82baa3bc5/vmlinux-198925fa.xz kernel image: https://storage.googleapis.com/syzbot-assets/7c31fbc6acb9/bzImage-198925fa.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+0839b78e119aae1fec78@syzkaller.appspotmail.com ================================================================================ UBSAN: shift-out-of-bounds in net/nfc/nci/core.c:912:45 shift exponent 4294967071 is too large for 32-bit type 'int' CPU: 1 PID: 30237 Comm: syz-executor.2 Not tainted 6.3.0-rc4-next-20230329-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x136/0x150 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_shift_out_of_bounds+0x221/0x5a0 lib/ubsan.c:387 nci_activate_target.cold+0x1a/0x1f net/nfc/nci/core.c:912 nfc_activate_target+0x1f8/0x4c0 net/nfc/core.c:420 nfc_genl_activate_target+0x1f3/0x290 net/nfc/netlink.c:900 genl_family_rcv_msg_doit.isra.0+0x1e6/0x2d0 net/netlink/genetlink.c:968 genl_family_rcv_msg net/netlink/genetlink.c:1048 [inline] genl_rcv_msg+0x4ff/0x7e0 net/netlink/genetlink.c:1065 netlink_rcv_skb+0x165/0x440 net/netlink/af_netlink.c:2572 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x925/0xe30 net/netlink/af_netlink.c:1942 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg+0xde/0x190 net/socket.c:747 ____sys_sendmsg+0x71c/0x900 net/socket.c:2501 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2555 __sys_sendmsg+0xf7/0x1c0 net/socket.c:2584 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc4abc8c0f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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:00007fc4aca02168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fc4abdabf80 RCX: 00007fc4abc8c0f9 RDX: 0000000000000000 RSI: 0000000020000780 RDI: 0000000000000005 RBP: 00007fc4abce7b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcb707727f R14: 00007fc4aca02300 R15: 0000000000022000 ================================================================================ --- This report is generated by a bot. 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