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 AB97AC77B76 for ; Tue, 25 Apr 2023 20:06:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236233AbjDYUGq (ORCPT ); Tue, 25 Apr 2023 16:06:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34456 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236230AbjDYUGo (ORCPT ); Tue, 25 Apr 2023 16:06:44 -0400 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 11D97B463 for ; Tue, 25 Apr 2023 13:06:43 -0700 (PDT) Received: by mail-io1-f72.google.com with SMTP id ca18e2360f4ac-7635a2dd490so963006339f.3 for ; Tue, 25 Apr 2023 13:06:43 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682453202; x=1685045202; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=p4fMexIJHfqxhZnypL/zvA27ZdlKr/POdpuWq1kaqlA=; b=B4UXrarBN+v7iRo58BYjJx+frnILjt0DIG+CyRcbnLBJUHuj9jdtux3slp/zy0+V2f ruVVOddCo1Niu0YiEoLVZvJGIJuHFiDvSvwEsm06x5hQtq/Pjd2rV++PDAmT7oX4kmQB zq6Lr5+Kalpv8qGrjC0rY3W7ls0IKeKomK9wANMFj/9SajgMesz5qVAn3CKizqDaWQBe 2ErWhsWCSsbQyfZU7G7XActRL0IlumDdLf+KuED279u7C4hnv0RfvfvgPdB5WIjYPPLK p2auCWGeQv7bnSPF4UtXpmXoowKNWw5L1Ytqwe30ZqfQANfP7yT1sMhb/AqYmqxD5KOm irgA== X-Gm-Message-State: AAQBX9ev+1ri8LFxMNcbHk/cttVlI7PLz36jbotU2frHIFIRn4oC+ZWk Ad8zzJbawXJzb16wj1eygyAkIdbrgXcT6xw445uDx3PjiE2A X-Google-Smtp-Source: AKy350aQpy7LmHkX25TQItyrllevYSOkpnrGATU0KYX8z+pBI37JoSpVyiOL7HDqHPER/bQraSij19oH8DEO5YVadTcKjm/ZyXqj MIME-Version: 1.0 X-Received: by 2002:a6b:7e4b:0:b0:745:70d7:4962 with SMTP id k11-20020a6b7e4b000000b0074570d74962mr7687052ioq.0.1682453202331; Tue, 25 Apr 2023 13:06:42 -0700 (PDT) Date: Tue, 25 Apr 2023 13:06:42 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000079eebe05fa2ea9ad@google.com> Subject: [syzbot] upstream boot error: BUG: unable to handle kernel NULL pointer dereference in __dabt_svc From: syzbot To: alex.gaynor@gmail.com, andriy.shevchenko@linux.intel.com, bjorn3_gh@protonmail.com, boqun.feng@gmail.com, bpf@vger.kernel.org, gary@garyguo.net, linux-kernel@vger.kernel.org, linux@rasmusvillemoes.dk, ojeda@kernel.org, pmladek@suse.com, rostedt@goodmis.org, rust-for-linux@vger.kernel.org, senozhatsky@chromium.org, syzkaller-bugs@googlegroups.com, wedsonaf@gmail.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: de10553fce40 Merge tag 'x86-apic-2023-04-24' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14bdae68280000 kernel config: https://syzkaller.appspot.com/x/.config?x=975b8311f6b96bca dashboard link: https://syzkaller.appspot.com/bug?extid=d692037148a8169fc9dd 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+d692037148a8169fc9dd@syzkaller.appspotmail.com 8<--- cut here --- Unable to handle kernel NULL pointer dereference at virtual address 000005fc when read [000005fc] *pgd=80000080004003, *pmd=00000000 Internal error: Oops: 206 [#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 Insufficient stack space to handle exception! Task stack: [0xdf85c000..0xdf85e000] IRQ stack: [0xdf804000..0xdf806000] Overflow stack: [0x828ae000..0x828af000] Internal error: kernel stack overflow: 0 [#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 __dabt_svc+0x14/0x60 arch/arm/kernel/entry-armv.S:210 LR is at vsnprintf+0x378/0x408 lib/vsprintf.c:2862 pc : [<80200a74>] lr : [<817ad5d8>] psr: 00000193 sp : df804028 ip : df805868 fp : df805864 r10: 00000060 r9 : ffffffff r8 : 00000010 r7 : 00000020 r6 : 00000004 r5 : ffffffff r4 : df805960 r3 : ffffffff r2 : 00000040 r1 : ffffffff r0 : 8264d250 Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 80003000 DAC: 00000000 Register r0 information: 8<--- cut here --- Unable to handle kernel NULL pointer dereference at virtual address 000001ff when read [000001ff] *pgd=80000080004003, *pmd=00000000 Internal error: Oops: 206 [#3] 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:2571 [inline] PC is at vmalloc_dump_obj+0x38/0xb4 mm/vmalloc.c:4108 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 : [<8046b2f0>] lr : [<817db0f4>] psr: 20000193 sp : 828aeef8 ip : 828aeee0 fp : 828aef0c r10: 828f3980 r9 : 8241c964 r8 : 8264d41c r7 : 60000193 r6 : 00000001 r5 : 8264e000 r4 : 00000207 r3 : 80216bd4 r2 : 00001d4c r1 : 00000000 r0 : 00000001 Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 80003000 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.