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 567CBC433FE for ; Mon, 10 Oct 2022 16:54:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229871AbiJJQyy (ORCPT ); Mon, 10 Oct 2022 12:54:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35650 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229731AbiJJQys (ORCPT ); Mon, 10 Oct 2022 12:54:48 -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 E1BA715FC5 for ; Mon, 10 Oct 2022 09:54:42 -0700 (PDT) Received: by mail-io1-f70.google.com with SMTP id h2-20020a056602154200b006bb5f8574afso7626197iow.13 for ; Mon, 10 Oct 2022 09:54:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; 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charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: bbed346d5a96 Merge branch 'for-next/core' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=17a90b58880000 kernel config: https://syzkaller.appspot.com/x/.config?x=3a4a45d2d827c1e dashboard link: https://syzkaller.appspot.com/bug?extid=6a462bc8fbe652f7d3fd compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=166df61c880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=160c288a880000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/e8e91bc79312/disk-bbed346d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c1cb3fb3b77e/vmlinux-bbed346d.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+6a462bc8fbe652f7d3fd@syzkaller.appspotmail.com Unable to handle kernel NULL pointer dereference at virtual address 0000000000000058 Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=000000010b53c000 [0000000000000058] pgd=080000010b5e4003, p4d=080000010b5e4003, pud=0800000109b02003, pmd=0000000000000000 Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 3038 Comm: syz-executor292 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : klist_next+0x28/0x18c lib/klist.c:377 lr : klist_next+0x24/0x18c lib/klist.c:376 sp : ffff80001282ba10 x29: ffff80001282ba10 x28: ffff0000c10a3500 x27: 0001000000000000 x26: 0000000000000000 x25: 0000000000000000 x24: ffff0000c3f47000 x23: ffff80000d832b20 x22: ffff0000ca8a0000 x21: ffff0000c3f43538 x20: 0000000000000000 x19: ffff80001282ba68 x18: 00000000000000c0 x17: ffff80000dd0b198 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000002 x12: ffff80000d833180 x11: ff808000096ae804 x10: 0000000000000000 x9 : ffff8000096ae804 x8 : ffff0000c10a3500 x7 : ffff8000095d2cfc x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff80000b97020c x1 : ffff80001282ba68 x0 : 0000000000000000 Call trace: klist_next+0x28/0x18c lib/klist.c:377 next_device drivers/base/core.c:3756 [inline] device_find_child+0x50/0x114 drivers/base/core.c:3899 hci_conn_del_sysfs+0x54/0xfc net/bluetooth/hci_sysfs.c:71 hci_conn_cleanup+0x2d4/0x380 net/bluetooth/hci_conn.c:147 hci_conn_del+0x144/0x2a8 net/bluetooth/hci_conn.c:1022 hci_conn_hash_flush+0xe8/0x148 net/bluetooth/hci_conn.c:2367 hci_dev_close_sync+0x48c/0x9e0 net/bluetooth/hci_sync.c:4476 hci_dev_do_close net/bluetooth/hci_core.c:554 [inline] hci_rfkill_set_block+0x98/0x198 net/bluetooth/hci_core.c:947 rfkill_set_block+0xb4/0x1f8 net/rfkill/core.c:345 rfkill_fop_write+0x358/0x3f8 net/rfkill/core.c:1286 vfs_write+0x1a4/0x46c fs/read_write.c:576 ksys_write+0xb4/0x160 fs/read_write.c:631 __do_sys_write fs/read_write.c:643 [inline] __se_sys_write fs/read_write.c:640 [inline] __arm64_sys_write+0x24/0x34 fs/read_write.c:640 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 Code: 910003fd aa0003f3 97afc505 a9405260 (f9402c18) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 910003fd mov x29, sp 4: aa0003f3 mov x19, x0 8: 97afc505 bl 0xfffffffffebf141c c: a9405260 ldp x0, x20, [x19] * 10: f9402c18 ldr x24, [x0, #88] <-- trapping instruction --- 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