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 X-Spam-Level: X-Spam-Status: No, score=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 97EB1C433F5 for ; Wed, 15 Sep 2021 17:00:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 76D2C61242 for ; Wed, 15 Sep 2021 17:00:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229991AbhIORBn (ORCPT ); Wed, 15 Sep 2021 13:01:43 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:56303 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229886AbhIORBl (ORCPT ); Wed, 15 Sep 2021 13:01:41 -0400 Received: by mail-io1-f70.google.com with SMTP id o128-20020a6bbe86000000b005bd06eaeca6so2390732iof.22 for ; Wed, 15 Sep 2021 10:00:22 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=WpQiM7yPPBzy/YqCZIrX7qSuV7LU5wW0z461NNWyFYA=; b=A0qTnU0hwLdRVr4vd7NEmmW7xc56188O1ZvC1dCWb2PkK5jQwVaApDg9lPvr4Q0Uf8 34Q+GqGx9zajytEvKB2OrS2er/dShm5aHs8zl+IYm8pP6/GJuD1wnAJeC3yLSDqkOTpk eS4SqdNkqU8OoTNv+j8w/6a5aD+APL97g3Bx1/YCkLn9LmUtp2wuIL3t+4yxY8dHDsQ3 Ny/M3rANfD554pHCk7p4FKB+QyPxFXhwI6ZSqOU8I8k1cqdeo+VxCfKIraUzzHsWvrVG 06JkxYkAXNZ/HPRwA8TXHBC26qmiSeX2Pu3t6qSVReguphZ3nz3ozNM2wkegIk0mfT6t sq9A== X-Gm-Message-State: AOAM5326dL68hQQC5fNp2CwxAXVbTKgxhguPw673VHYBCv/trDseTThC QlUeE2vdhXnHifdpNXir5aE1Db4QRr6hXPFdny5tTp7hcILJ X-Google-Smtp-Source: ABdhPJx7JUsDEI+nzhKKD1NTgnCoXis5dpPaRXZM0CxbTfms7nvAMynBvig551US5ueaGgjnycRazkW8AbXePSPQSsecxnKEqePo MIME-Version: 1.0 X-Received: by 2002:a6b:ce17:: with SMTP id p23mr870546iob.90.1631725222508; Wed, 15 Sep 2021 10:00:22 -0700 (PDT) Date: Wed, 15 Sep 2021 10:00:22 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000423e0a05cc0ba2c4@google.com> Subject: [syzbot] WARNING in __init_work From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.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: 926de8c4326c Merge tag 'acpi-5.15-rc1-3' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17aa010d300000 kernel config: https://syzkaller.appspot.com/x/.config?x=1c3d15ee2073a2a2 dashboard link: https://syzkaller.appspot.com/bug?extid=d6c75f383e01426a40b4 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d6c75f383e01426a40b4@syzkaller.appspotmail.com ODEBUG: object ffffc90000fd8bc8 is NOT on stack ffffc900022a0000, but annotated. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 2971 at lib/debugobjects.c:548 debug_object_is_on_stack lib/debugobjects.c:545 [inline] WARNING: CPU: 1 PID: 2971 at lib/debugobjects.c:548 __debug_object_init.cold+0x252/0x2e5 lib/debugobjects.c:607 Modules linked in: CPU: 1 PID: 2971 Comm: systemd-udevd Not tainted 5.14.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:debug_object_is_on_stack lib/debugobjects.c:548 [inline] RIP: 0010:__debug_object_init.cold+0x252/0x2e5 lib/debugobjects.c:607 Code: 00 48 8d 7b 20 48 89 fa 48 c1 ea 03 80 3c 02 00 74 05 e8 c0 3e bb f8 48 8b 53 20 4c 89 e6 48 c7 c7 c0 a7 e3 89 e8 a1 34 f2 ff <0f> 0b e9 3f 9f dc fa 48 b8 00 01 00 00 00 00 ad de 48 89 ef 48 89 RSP: 0018:ffffc90000fd89f8 EFLAGS: 00010286 RAX: 0000000000000050 RBX: ffff88801f3f2180 RCX: 0000000000000000 RDX: ffff88801f3f2180 RSI: ffffffff815cef88 RDI: fffff520001fb131 RBP: ffff88801f3f2180 R08: 0000000000000050 R09: 0000000000000000 R10: ffffffff815c8cfe R11: 0000000000000000 R12: ffffc90000fd8bc8 R13: 1ffff920001fb14e R14: ffffffff9040c580 R15: ffffffff9040c578 FS: 00007f35a6cd88c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000014a53ad CR3: 000000001fc51000 CR4: 00000000001526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __init_work+0x2d/0x50 kernel/workqueue.c:519 synchronize_rcu_expedited+0x392/0x620 kernel/rcu/tree_exp.h:847 bdi_remove_from_list mm/backing-dev.c:938 [inline] bdi_unregister+0x177/0x5a0 mm/backing-dev.c:946 release_bdi+0xa1/0xc0 mm/backing-dev.c:968 kref_put include/linux/kref.h:65 [inline] bdi_put+0x72/0xa0 mm/backing-dev.c:976 bdev_free_inode+0x116/0x220 fs/block_dev.c:819 i_callback+0x3f/0x70 fs/inode.c:224 rcu_do_batch kernel/rcu/tree.c:2508 [inline] rcu_core+0x7ab/0x1470 kernel/rcu/tree.c:2743 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:197 Code: 01 f0 4d 89 03 e9 63 fd ff ff b9 ff ff ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 00 <65> 8b 05 c9 ab 8c 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b RSP: 0018:ffffc900022a79d8 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffff88801f3f2180 RDI: 0000000000000003 RBP: ffffc900022a7b48 R08: 0000000000000000 R09: 0000000000000005 R10: ffffffff83a87292 R11: 000000000000001f R12: ffff888020928180 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 tomoyo_check_path_acl security/tomoyo/file.c:260 [inline] tomoyo_check_path_acl+0xbe/0x210 security/tomoyo/file.c:252 tomoyo_check_acl+0x13c/0x450 security/tomoyo/domain.c:175 tomoyo_path_permission security/tomoyo/file.c:586 [inline] tomoyo_path_permission+0x1ff/0x3a0 security/tomoyo/file.c:573 tomoyo_path_perm+0x2f0/0x400 security/tomoyo/file.c:838 security_inode_getattr+0xcf/0x140 security/security.c:1333 vfs_getattr fs/stat.c:157 [inline] vfs_statx+0x164/0x390 fs/stat.c:225 vfs_fstatat fs/stat.c:243 [inline] vfs_lstat include/linux/fs.h:3356 [inline] __do_sys_newlstat+0x91/0x110 fs/stat.c:398 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f35a5b4a335 Code: 69 db 2b 00 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 83 ff 01 48 89 f0 77 30 48 89 c7 48 89 d6 b8 06 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 03 f3 c3 90 48 8b 15 31 db 2b 00 f7 d8 64 89 RSP: 002b:00007ffd7b867ca8 EFLAGS: 00000246 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 0000563eb9e97120 RCX: 00007f35a5b4a335 RDX: 00007ffd7b867ce0 RSI: 00007ffd7b867ce0 RDI: 0000563eb9e96120 RBP: 00007ffd7b867da0 R08: 00007f35a5e092e8 R09: 0000000000001010 R10: 00007f35a5e08b58 R11: 0000000000000246 R12: 0000563eb9e96120 R13: 0000563eb9e9614a R14: 0000563eb9e8dce1 R15: 0000563eb9e8dcea ---------------- Code disassembly (best guess): 0: 01 f0 add %esi,%eax 2: 4d 89 03 mov %r8,(%r11) 5: e9 63 fd ff ff jmpq 0xfffffd6d a: b9 ff ff ff ff mov $0xffffffff,%ecx f: ba 08 00 00 00 mov $0x8,%edx 14: 4d 8b 03 mov (%r11),%r8 17: 48 0f bd ca bsr %rdx,%rcx 1b: 49 8b 45 00 mov 0x0(%r13),%rax 1f: 48 63 c9 movslq %ecx,%rcx 22: e9 64 ff ff ff jmpq 0xffffff8b 27: 0f 1f 00 nopl (%rax) * 2a: 65 8b 05 c9 ab 8c 7e mov %gs:0x7e8cabc9(%rip),%eax # 0x7e8cabfa <-- trapping instruction 31: 89 c1 mov %eax,%ecx 33: 48 8b 34 24 mov (%rsp),%rsi 37: 81 e1 00 01 00 00 and $0x100,%ecx 3d: 65 gs 3e: 48 rex.W 3f: 8b .byte 0x8b --- This report is generated by a bot. 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