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 29215C77B60 for ; Wed, 26 Apr 2023 06:38:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239433AbjDZGir convert rfc822-to-8bit (ORCPT ); Wed, 26 Apr 2023 02:38:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54664 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239309AbjDZGip (ORCPT ); Wed, 26 Apr 2023 02:38:45 -0400 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 67897A9 for ; Tue, 25 Apr 2023 23:38:44 -0700 (PDT) Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-760d7046e89so1068670139f.3 for ; Tue, 25 Apr 2023 23:38:44 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682491123; x=1685083123; h=content-transfer-encoding:to:from:subject:message-id:date :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=aE7OycQUlG0tVy79xGjrI932c1y8C0+9h6kD2l7mlLg=; b=UzAjxvzaBphUotf39ykAJedFJ0FXVNiSr76Kub90GxAlKxKQGrYJmIJFNY9NXXN+2E TVPacXC6BVsh4KxKNrnWtacaT9Ztm2dKQCdhsZD8iZUtbIXTqf+1bdi0MAEtQcaVMw+B omXUHoWZTl0HvSssZxNKSF7u0PhusTjMR4KPgqrG5ny1DUjgSs0Y4UOZIExWbw5ly9FY Ka5L7uoXoj2+PL6hF73dhyL5hNUwk04Zq+WN5wEc370bbr9xP0tXku9LFi2Vug5yhyxc uopfX2FdY99iLXV3NPg7yllg0Cltovd7RGSCaRMzB92efy3LyBq1Tvie49VFRQhpCdWo 6l4g== X-Gm-Message-State: AAQBX9deUwwKm2buLEDCd2lUqnLR1zYRmaJnIXHy0Y1wrvcGylMX5FnY 8TmEzBPfeAdpUoJHk81SbXjM8Koa1YxAx6MM83MKZKsBkZ/K X-Google-Smtp-Source: AKy350bmiIcTLW83RppC9tiy8/lxBj2IPGXjgT/o578mCNJPdk6eDSRGMznFkZuJOm9FNNtCf8fxMJPd6VO0lk8FBm10wszBloSf MIME-Version: 1.0 X-Received: by 2002:a5d:8855:0:b0:760:ecb4:a77c with SMTP id t21-20020a5d8855000000b00760ecb4a77cmr8376893ios.2.1682491123780; Tue, 25 Apr 2023 23:38:43 -0700 (PDT) Date: Tue, 25 Apr 2023 23:38:43 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000c553e805fa377df8@google.com> Subject: [syzbot] upstream boot error: Internal error in __dabt_svc From: syzbot To: akpm@linux-foundation.org, hch@infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, urezki@gmail.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 0cfd8703e7da Merge tag 'pm-6.4-rc1' of git://git.kernel.or.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=171209d7c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=9c5db63fc076f807 dashboard link: https://syzkaller.appspot.com/bug?extid=9e79a8560c1bfbab7a47 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+9e79a8560c1bfbab7a47@syzkaller.appspotmail.com Initmem setup node 0 [mem 0x0000000080000000-0x00000000ffffffff] percpu: Embedded 18 pages/cpu s44168 r8192 d21368 u73728 Built 1 zonelists, mobility grouping on. Total pages: 520868 Kernel command line: root=/dev/vda console=ttyAMA0 earlyprintk=serial net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 binder.debug_mask=0 rcupdate.rcu_expedited=1 rcupdate.rcu_cpu_stall_cputime=1 no_hash_pointers page_owner=on sysctl.vm.nr_hugepages=4 sysctl.vm.nr_overcommit_hugepages=4 secretmem.enable=1 sysctl.max_rcu_stall_to_panic=1 msr.allow_writes=off coredump_filter=0xffff root=/dev/vda console=ttyAMA0 vmalloc=512M smp.csd_lock_timeout=300000 watchdog_thresh=165 workqueue.watchdog_thresh=420 sysctl.net.core.netdev_unregister_timeout_secs=420 dummy_hcd.num=2 panic_on_warn=1 Unknown kernel command line parameters "earlyprintk=serial page_owner=on", will be passed to user space. Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes, linear) Inode-cache hash table entries: 131072 (order: 7, 524288 bytes, linear) allocated 2097152 bytes of page_ext mem auto-init: stack:off, heap alloc:on, heap free:off software IO TLB: area num 2. software IO TLB: mapped [mem 0x00000000d9a49000-0x00000000dda49000] (64MB) Memory: 1954384K/2097152K available (22528K kernel code, 2354K rwdata, 8344K rodata, 2048K init, 865K bss, 126384K reserved, 16384K cma-reserved, 524288K highmem) SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 trace event string verifier disabled rcu: Preemptible hierarchical RCU implementation. rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. rcu: RCU callback double-/use-after-free debug is enabled. All grace periods are expedited (rcu_expedited). Trampoline variant of Tasks RCU enabled. Tracing variant of Tasks RCU enabled. rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 GIC physical location is 0x2c001000 rcu: srcu_init: Setting srcu_struct sizes based on contention. sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns clocksource: arm,sp804: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275 ns arch_timer: cp15 timer(s) running at 62.50MHz (virt). clocksource: arch_sys_counter: mask: 0x1ffffffffffffff max_cycles: 0x1cd42e208c, max_idle_ns: 881590405314 ns sched_clock: 57 bits at 63MHz, resolution 16ns, wraps every 4398046511096ns Switching to timer-based delay loop, resolution 16ns Console: colour dummy device 80x30 Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=625000) pid_max: default: 32768 minimum: 301 LSM: initializing lsm=lockdown,capability,landlock,yama,safesetid,tomoyo,selinux,bpf,integrity landlock: Up and running. Yama: becoming mindful. TOMOYO Linux initialized SELinux: Initializing. LSM support for eBPF active stackdepot: allocating hash table of 131072 entries via kvcalloc Mount-cache hash table entries: 4096 (order: 2, 16384 bytes, linear) Mountpoint-cache hash table entries: 4096 (order: 2, 16384 bytes, linear) CPU: Testing write buffer coherency: ok CPU0: Spectre BHB: enabling loop workaround for all CPUs CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 Insufficient stack space to handle exception! Task stack: [0xdf85c000..0xdf85e000] IRQ stack: [0xdf804000..0xdf806000] Overflow stack: [0x828ae000..0x828af000] Internal error: kernel stack overflow: 0 [#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 __dabt_svc+0x14/0x60 arch/arm/kernel/entry-armv.S:210 LR is at call_with_stack+0x1c/0x20 arch/arm/lib/call_with_stack.S:40 pc : [<80200a74>] lr : [<817864ec>] psr: 00000193 sp : df804020 ip : df806000 fp : df85df14 r10: 825dfae1 r9 : 828f3980 r8 : 00000000 r7 : df85df4c r6 : ffffffff r5 : 20000113 r4 : 817d2898 r3 : df000000 r2 : 817d12b8 r1 : df85df18 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 [#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: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 : [<8046b3b0>] lr : [<817dcf14>] 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 : 00001f03 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. 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