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 6226CC61DA4 for ; Sat, 4 Feb 2023 18:11:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233172AbjBDSLq (ORCPT ); Sat, 4 Feb 2023 13:11:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42718 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230358AbjBDSLo (ORCPT ); Sat, 4 Feb 2023 13:11:44 -0500 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EB9BC2E833 for ; Sat, 4 Feb 2023 10:11:42 -0800 (PST) Received: by mail-io1-f71.google.com with SMTP id d73-20020a6bb44c000000b0072805fbd06aso4920038iof.17 for ; Sat, 04 Feb 2023 10:11:42 -0800 (PST) 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=rQGSWS0NeeOjDjctwAW1Mbr92dfn1bVGuk+o1S9F3bw=; b=284EvMH0RDrnDo+Fvi2kdRxZVBcMMy/v8LwyUQgWgxk13InAMbdDbRUBpwYd4cv2f2 cwLkPgKvj/cWgW8QC1F6jHOT2z7/MG3wtxdEJ7HXCypA1jFwVXXwhek3VDjYssNWibVg 49hJufzgNpG1V7fNb2o5kYFh2fp7SXKjQUUeQ8d/tbNQhrA5uMuL7AMDNfNFd4FWdIg2 dImGnr8nmCFCGiQcOb+4Q7TkXq6TdkLjSlJetKnUjGOX6Yc6o6gA4i0e4pf6Fk4oxlt/ vxrhl0R+D90D62EWgndrtBldpIJgKf5ob8HYKLzH17N9671HUzr90/K6Mz/RsDPV3v/B HFDQ== X-Gm-Message-State: AO0yUKX40Faj4j4toZe72Q63ZmpNBE86tW7XZfzXwBzh+uMaUTQTUpbz 1qspcLS304I3ZfomXHeZGcQ5srVra0vrhjonK9NDisCWlcPo X-Google-Smtp-Source: AK7set+EEG4UivBKOEMCy8RMUEPYof6boZ8VOw+bsOXkB0jD8sFMFdxZka63rCPAoKxhKKFQuD8JwKwf4SiV5Gc68kMT70jz4pJp MIME-Version: 1.0 X-Received: by 2002:a92:ac0c:0:b0:312:5d71:af94 with SMTP id r12-20020a92ac0c000000b003125d71af94mr2990545ilh.78.1675534302238; Sat, 04 Feb 2023 10:11:42 -0800 (PST) Date: Sat, 04 Feb 2023 10:11:42 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e4e20e05f3e3ba70@google.com> Subject: [syzbot] WARNING in kernfs_get (4) From: syzbot To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tj@kernel.org 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: 80bd9028feca Add linux-next specific files for 20230131 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=155ac609480000 kernel config: https://syzkaller.appspot.com/x/.config?x=904dc2f450eaad4a dashboard link: https://syzkaller.appspot.com/bug?extid=9be7b6c4b696be5d83ef compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=151a6d79480000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/924618188238/disk-80bd9028.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/7a03cf86e545/vmlinux-80bd9028.xz kernel image: https://storage.googleapis.com/syzbot-assets/568e80043a41/bzImage-80bd9028.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+9be7b6c4b696be5d83ef@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5108 at fs/kernfs/dir.c:522 kernfs_get.part.0+0x69/0x80 fs/kernfs/dir.c:522 Modules linked in: CPU: 0 PID: 5108 Comm: syz-executor.3 Not tainted 6.2.0-rc6-next-20230131-syzkaller-09515-g80bd9028feca #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:kernfs_get.part.0+0x69/0x80 fs/kernfs/dir.c:522 Code: 31 ff 89 ee e8 e8 65 7a ff 85 ed 74 18 e8 8f 69 7a ff be 04 00 00 00 48 89 df e8 a2 74 c9 ff f0 ff 03 5b 5d c3 e8 77 69 7a ff <0f> 0b eb df 48 89 df e8 eb 6d c9 ff eb c6 66 0f 1f 84 00 00 00 00 RSP: 0018:ffffc900040bef10 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888077931000 RCX: 0000000000000000 RDX: ffff888021c91d40 RSI: ffffffff820a4ca9 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880779310e8 R13: ffff88802b4c6028 R14: ffff8880222f2b50 R15: 0000000000000000 FS: 00005555572ee400(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f167a621718 CR3: 00000000730ad000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kernfs_get fs/kernfs/dir.c:521 [inline] kernfs_new_node fs/kernfs/dir.c:676 [inline] kernfs_create_dir_ns+0xc4/0x230 fs/kernfs/dir.c:1029 sysfs_create_dir_ns+0x12b/0x290 fs/sysfs/dir.c:59 create_dir lib/kobject.c:63 [inline] kobject_add_internal+0x2c9/0x9c0 lib/kobject.c:231 kobject_add_varg lib/kobject.c:366 [inline] kobject_init_and_add+0x101/0x170 lib/kobject.c:449 rx_queue_add_kobject net/core/net-sysfs.c:1063 [inline] net_rx_queue_update_kobjects+0x25f/0x510 net/core/net-sysfs.c:1114 register_queue_kobjects net/core/net-sysfs.c:1774 [inline] netdev_register_kobject+0x279/0x400 net/core/net-sysfs.c:2019 register_netdevice+0xd77/0x1640 net/core/dev.c:10048 cfg80211_register_netdevice+0x157/0x330 net/wireless/core.c:1397 ieee80211_if_add+0x1096/0x1970 net/mac80211/iface.c:2198 ieee80211_register_hw+0x37db/0x40d0 net/mac80211/main.c:1403 mac80211_hwsim_new_radio+0x25c5/0x4920 drivers/net/wireless/mac80211_hwsim.c:4583 hwsim_new_radio_nl+0xa09/0x10f0 drivers/net/wireless/mac80211_hwsim.c:5176 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:2574 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:722 [inline] sock_sendmsg+0xde/0x190 net/socket.c:745 __sys_sendto+0x23a/0x340 net/socket.c:2142 __do_sys_sendto net/socket.c:2154 [inline] __se_sys_sendto net/socket.c:2150 [inline] __x64_sys_sendto+0xe1/0x1b0 net/socket.c:2150 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: 0033:0x7f859403e0fc Code: fa fa ff ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 20 fb ff ff 48 8b RSP: 002b:00007ffea124f050 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f8594cd4620 RCX: 00007f859403e0fc RDX: 0000000000000024 RSI: 00007f8594cd4670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffea124f0a4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007f8594cd4670 R14: 0000000000000003 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