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 E44ADEB64DC for ; Sun, 25 Jun 2023 13:54:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229534AbjFYNyq (ORCPT ); Sun, 25 Jun 2023 09:54:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42654 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229446AbjFYNyp (ORCPT ); Sun, 25 Jun 2023 09:54:45 -0400 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BD4171B1 for ; Sun, 25 Jun 2023 06:54:44 -0700 (PDT) Received: by mail-il1-f207.google.com with SMTP id e9e14a558f8ab-3406eef1dbeso11991035ab.2 for ; Sun, 25 Jun 2023 06:54:44 -0700 (PDT) X-Google-DKIM-Signature: v=1; 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charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: e660abd551f1 Merge tag 'acpi-6.4-rc8' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17e5a5b7280000 kernel config: https://syzkaller.appspot.com/x/.config?x=24ce1b2abaee24cc dashboard link: https://syzkaller.appspot.com/bug?extid=8aebf783fcc04684a047 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=12f0094b280000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-e660abd5.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6157b122cedf/vmlinux-e660abd5.xz kernel image: https://storage.googleapis.com/syzbot-assets/3ca86f1fadbf/bzImage-e660abd5.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8aebf783fcc04684a047@syzkaller.appspotmail.com general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] CPU: 3 PID: 5205 Comm: kworker/2:4 Not tainted 6.4.0-rc7-syzkaller-00041-ge660abd551f1 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:__lock_acquire+0xe01/0x5f30 kernel/locking/lockdep.c:4956 Code: 00 00 3b 05 a1 ce 59 0f 0f 87 7a 09 00 00 41 be 01 00 00 00 e9 84 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 9e 33 00 00 49 81 3c 24 20 78 15 90 0f 84 cd f2 RSP: 0018:ffffc90003d27be0 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 1ffff920007a4fad RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018 RBP: ffff88802f9fd6c0 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000018 R13: 0000000000000000 R14: 0000000000000018 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88806b900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f896259d440 CR3: 00000000293e8000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire kernel/locking/lockdep.c:5705 [inline] lock_acquire+0x1b1/0x520 kernel/locking/lockdep.c:5670 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline] _raw_spin_lock_irq+0x36/0x50 kernel/locking/spinlock.c:170 worker_thread+0x16d/0x10c0 kernel/workqueue.c:2502 kthread+0x344/0x440 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0xe01/0x5f30 kernel/locking/lockdep.c:4956 Code: 00 00 3b 05 a1 ce 59 0f 0f 87 7a 09 00 00 41 be 01 00 00 00 e9 84 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 9e 33 00 00 49 81 3c 24 20 78 15 90 0f 84 cd f2 RSP: 0018:ffffc90003d27be0 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 1ffff920007a4fad RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018 RBP: ffff88802f9fd6c0 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000018 R13: 0000000000000000 R14: 0000000000000018 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88806b900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f896259d440 CR3: 00000000293e8000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 3b 05 a1 ce 59 0f cmp 0xf59cea1(%rip),%eax # 0xf59cea9 8: 0f 87 7a 09 00 00 ja 0x988 e: 41 be 01 00 00 00 mov $0x1,%r14d 14: e9 84 00 00 00 jmpq 0x9d 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 4c 89 e2 mov %r12,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 9e 33 00 00 jne 0x33d2 34: 49 81 3c 24 20 78 15 cmpq $0xffffffff90157820,(%r12) 3b: 90 3c: 0f .byte 0xf 3d: 84 cd test %cl,%ch 3f: f2 repnz --- 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 syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. 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