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 668D2C77B7C for ; Fri, 5 May 2023 22:06:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232327AbjEEWF7 (ORCPT ); Fri, 5 May 2023 18:05:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34362 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230386AbjEEWFx (ORCPT ); Fri, 5 May 2023 18:05:53 -0400 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CB0B15BA8 for ; Fri, 5 May 2023 15:05:24 -0700 (PDT) Received: by mail-il1-f199.google.com with SMTP id e9e14a558f8ab-3315ccc1c08so32395675ab.0 for ; Fri, 05 May 2023 15:05:24 -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: 1a5304fecee5 Merge tag 'parisc-for-6.4-1' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=125e1e5c280000 kernel config: https://syzkaller.appspot.com/x/.config?x=124f13edd5df0b0d dashboard link: https://syzkaller.appspot.com/bug?extid=d4b00edc2d0c910d4bf4 compiler: arm-linux-gnueabi-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d4b00edc2d0c910d4bf4@syzkaller.appspotmail.com 8<--- cut here --- Unable to handle kernel NULL pointer dereference at virtual address 00000018 when read [00000018] *pgd=80000080004003, *pmd=00000000 Internal error: Oops: 207 [#1] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.0-syzkaller #0 Hardware name: ARM-Versatile Express PC is at find_next_and_bit include/linux/find.h:93 [inline] PC is at should_we_balance kernel/sched/fair.c:10717 [inline] PC is at load_balance+0x130/0xcdc kernel/sched/fair.c:10760 LR is at load_balance+0x78/0xcdc kernel/sched/fair.c:10743 pc : [<8028b604>] lr : [<8028b54c>] psr: 80000113 sp : df805df8 ip : df805e84 fp : df805ebc r10: 8309a800 r9 : df805e84 r8 : 00000001 r7 : 8309a800 r6 : ddddb400 r5 : 830b4640 r4 : 00000001 r3 : 00000000 r2 : ddddb400 r1 : 00000000 r0 : df805e48 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 847ac040 DAC: 00000000 Register r0 information: 8<--- cut here --- Unable to handle kernel paging request at virtual address df96bff8 when read [df96bff8] *pgd=80000080007003, *pmd=83093003, *pte=8261d0a800000000 Internal error: Oops: 207 [#2] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.0-syzkaller #0 Hardware name: ARM-Versatile Express PC is at __find_vmap_area mm/vmalloc.c:841 [inline] PC is at find_vmap_area mm/vmalloc.c:1862 [inline] PC is at find_vm_area mm/vmalloc.c:2623 [inline] PC is at vmalloc_dump_obj+0x38/0xb4 mm/vmalloc.c:4221 LR is at __raw_spin_lock include/linux/spinlock_api_smp.h:132 [inline] LR is at _raw_spin_lock+0x18/0x58 kernel/locking/spinlock.c:154 pc : [<8047a200>] lr : [<818015f4>] psr: a0000193 sp : df805c88 ip : df805c70 fp : df805c9c r10: 831f4680 r9 : 8261c9a4 r8 : 8285041c r7 : 60000113 r6 : 00000001 r5 : df806000 r4 : df96c000 r3 : 00000000 r2 : 00002268 r1 : 00000000 r0 : 00000001 Flags: NzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 847ac040 DAC: 00000000 --- 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. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup