From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6A56C155A53 for ; Tue, 22 Oct 2024 08:31:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729585866; cv=none; b=n6D9171Gfd+JNiMRZMJt60i4gEWo/6jEkvzjaPWYw81vzASauVq+8oUxvOxFBlGbmtpnQ40b1FzI5qaxVpOsWiP9FG34FmUUVeGoKoyDZAqdmLMG3rJvQfd9K1Km2jIl1dpcMyU1CJk6eKbvEx+ktxMG48+NliS/PAPRZqDzOVg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729585866; c=relaxed/simple; bh=EDWeIKVYFaW9TplsDVFCg8+g25Y/iilxGubn4Czl5U0=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=f5KZTJo0B546tgQd2JEBwBsRMPsR+PhO7U61vgyfLoWQbfebQynxDjGzhbQE6VnTEpFxkxw6RUk22UhCovXYxLmvlpWfBnl0F/fXVK9EIlQFf7FCnB5vueOeFJBpxYk14fETShiiKgqKHkeJ43R8cvNHa+2DLSLPyZvirvVFmuE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-83abf723da3so313340739f.3 for ; Tue, 22 Oct 2024 01:31:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729585863; x=1730190663; h=content-transfer-encoding:to:from:subject:message-id:in-reply-to :date:mime-version:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=QjElZkHSLxsVhvl+fMVEl5HlfY3NP0pMwsSMioPk900=; b=NFSiH/0HleRq95Rob5HQbSraBVxEPZiCmYYTf46CIzzzjZ+wi6VTkB7jPWWVGCMvZa lz5gSOYtxf2WLuHx4UoC8o9v2I9XQyPjzKVz3Bggt7elK1gYIZ75ZeT/tlP5D8zU9+XZ e5fKRebz+3rBR6PIryCehQ8Oj0hfruffz3qd0Z7bTl6gjW5Yp8Y5OxYlzRqYTpolML1g 7k7BOlG2nRI79IX+mGJ4pzWs5KHBlOtMVXvmkzbheyrtCWL0foq9M8esAanwjsD92/st E4OgOA763v2CorZ7771DJ2z41uf1o2hjTpSvyl4/hMehRarwhvZ09xBr3QLtRt38mOvG mwPQ== X-Forwarded-Encrypted: i=1; AJvYcCXsA/Ujn5rY7KwV93JZv/SthNu8IxBGX+kVtnMvUeIf8iMFQ5rdXtyHwljtuDNoVQn9c0U0TbNa4faNF20=@vger.kernel.org X-Gm-Message-State: AOJu0YxPa6WJHEaSf3MBI9cpMFWg2yoeuTz+DZC8Otk1VOUC9E6miBIa Yp/2wjLQmW1KA+X/zNyTcqSImtruXyb6F4CloWsGK6v2nmoEIPBPikk///ihkkbTrn6d2xQr66w M1LLuFlmtqE3GF81Pb/MoAOxv2HoYkteIXrqPEKVw9PyKhqWez9HdTeM= X-Google-Smtp-Source: AGHT+IH9st9jnQkgbFatDRqFg8/kXESnU687fFuIPuK2EHPygOO2G9/WH4GJZOPLL2RKZWud6T2NsdGhtmwm/rPd3oZAOuTwHICZ Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:150b:b0:83a:b7e8:a684 with SMTP id ca18e2360f4ac-83aba645ebdmr1153769339f.11.1729585863497; Tue, 22 Oct 2024 01:31:03 -0700 (PDT) Date: Tue, 22 Oct 2024 01:31:03 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <671762c7.050a0220.10f4f4.0114.GAE@google.com> Subject: Re: [syzbot] [serial?] BUG: soft lockup in debug_check_no_obj_freed From: syzbot To: eadavis@qq.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot tried to test the proposed patch but the build/boot failed: 653] 1 lock held by syz-execprog/2653: [ 61.434232][ T2653] #0: ffff888112418958 (&sighand->siglock){....}-{2:2= }, at: get_signal+0x25a/0x2770 [ 61.443766][ T2653] irq event stamp: 48556 [ 61.448017][ T2653] hardirqs last enabled at (48555): [] irqentry_exit_to_user_mode+0x113/0x240 [ 61.458527][ T2653] hardirqs last disabled at (48556): [] _raw_spin_lock_irq+0x45/0x50 [ 61.468174][ T2653] softirqs last enabled at (48542): [] handle_softirqs+0x5a3/0x8d0 [ 61.477893][ T2653] softirqs last disabled at (48537): [] irq_exit_rcu+0xac/0x110 [ 61.487192][ T2653] Preemption disabled at: [ 61.487201][ T2653] [<0000000000000000>] 0x0 [ 61.496255][ T2653] CPU: 1 UID: 0 PID: 2653 Comm: syz-execprog Tainted: = G W 6.12.0-rc4-syzkaller-gc6d9e43954bf-dirty #0 [ 61.508883][ T2653] Tainted: [W]=3DWARN [ 61.512710][ T2653] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 09/13/2024 [ 61.522769][ T2653] Call Trace: [ 61.526056][ T2653] [ 61.528996][ T2653] dump_stack_lvl+0x116/0x1f0 [ 61.533718][ T2653] __might_resched+0x3c0/0x5e0 [ 61.538585][ T2653] ? mark_lock+0xb5/0xc60 [ 61.542930][ T2653] ? __pfx___might_resched+0x10/0x10 [ 61.548267][ T2653] ? __pfx_mark_lock+0x10/0x10 [ 61.553043][ T2653] debug_check_no_obj_freed+0x1d9/0x620 [ 61.558627][ T2653] ? __pfx_debug_check_no_obj_freed+0x10/0x10 [ 61.564815][ T2653] ? put_ucounts+0x1e4/0x290 [ 61.569459][ T2653] kmem_cache_free+0x27d/0x480 [ 61.574418][ T2653] ? collect_signal+0x315/0x630 [ 61.579304][ T2653] collect_signal+0x315/0x630 [ 61.584620][ T2653] dequeue_signal+0x27e/0x720 [ 61.589657][ T2653] ? do_raw_spin_lock+0x12d/0x2c0 [ 61.594772][ T2653] ? __pfx_dequeue_signal+0x10/0x10 [ 61.600066][ T2653] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 61.605530][ T2653] ? lock_acquire+0x2f/0xb0 [ 61.610044][ T2653] ? get_signal+0x25a/0x2770 [ 61.614641][ T2653] get_signal+0x5fb/0x2770 [ 61.619071][ T2653] ? __pfx_get_signal+0x10/0x10 [ 61.624016][ T2653] ? ktime_get+0xfb/0x1a0 [ 61.628439][ T2653] arch_do_signal_or_restart+0x90/0x7e0 [ 61.634093][ T2653] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 61.640364][ T2653] irqentry_exit_to_user_mode+0x136/0x240 [ 61.646182][ T2653] asm_sysvec_reschedule_ipi+0x1a/0x20 [ 61.651680][ T2653] RIP: 0033:0x41a8cb [ 61.655579][ T2653] Code: 8b 50 20 48 c1 e2 0d 48 89 d6 48 c1 ea 06 48 8= b 78 68 48 c1 ef 03 4c 8b 40 18 4c 01 c6 48 29 d6 4c 29 c3 48 89 d9 48 c1 e= b 09 <48> c1 e9 03 48 89 ca 83 e2 3f 4c 8d 04 3a 4c 8d 0c de 90 90 48 8d [ 61.675288][ T2653] RSP: 002b:000000c001e35e58 EFLAGS: 00000207 [ 61.681359][ T2653] RAX: 00007ffa93044e58 RBX: 0000000000000009 RCX: 000= 00000000013e0 [ 61.689336][ T2653] RDX: 0000000000000080 RSI: 000000c002547f80 RDI: 000= 0000000000006 [ 61.697310][ T2653] RBP: 000000c001e35e70 R08: 000000c002546000 R09: 000= 000c000066508 [ 61.705378][ T2653] R10: 000000c001ca5800 R11: 0000000000000024 R12: 000= 000c001e35f00 [ 61.713369][ T2653] R13: 0000000000000001 R14: 000000c001c77c00 R15: 000= 000c0020bd0e8 [ 61.721354][ T2653] [ 61.893622][ T29] kauditd_printk_skb: 9 callbacks suppressed [ 61.893645][ T29] audit: type=3D1400 audit(1729585852.299:102): avc: = denied { execmem } for pid=3D2660 comm=3D"syz-executor" scontext=3Droot:s= ysadm_r:sysadm_t tcontext=3Droot:sysadm_r:sysadm_t tclass=3Dprocess permiss= ive=3D1 [ 61.969213][ T29] audit: type=3D1400 audit(1729585852.359:103): avc: = denied { read } for pid=3D2665 comm=3D"syz-executor" dev=3D"nsfs" ino=3D4= 026531840 scontext=3Droot:sysadm_r:sysadm_t tcontext=3Dsystem_u:object_r:ns= fs_t tclass=3Dfile permissive=3D1 [ 62.017211][ T29] audit: type=3D1400 audit(1729585852.359:104): avc: = denied { open } for pid=3D2665 comm=3D"syz-executor" path=3D"net:[4026531= 840]" dev=3D"nsfs" ino=3D4026531840 scontext=3Droot:sysadm_r:sysadm_t tcont= ext=3Dsystem_u:object_r:nsfs_t tclass=3Dfile permissive=3D1 [ 62.097311][ T29] audit: type=3D1400 audit(1729585852.359:105): avc: = denied { mounton } for pid=3D2665 comm=3D"syz-executor" path=3D"/" dev=3D= "sda1" ino=3D2 scontext=3Droot:sysadm_r:sysadm_t tcontext=3Dsystem_u:object= _r:root_t tclass=3Ddir permissive=3D1 [ 62.169505][ T29] audit: type=3D1400 audit(1729585852.379:106): avc: = denied { create } for pid=3D2664 comm=3D"syz-executor" scontext=3Droot:sy= sadm_r:sysadm_t tcontext=3Droot:sysadm_r:sysadm_t tclass=3Duser_namespace p= ermissive=3D1 [ 62.196383][ T2665] soft_limit_in_bytes is deprecated and will be remove= d. Please report your usecase to linux-mm@kvack.org if you depend on this f= unctionality. [ 62.237242][ T29] audit: type=3D1400 audit(1729585852.399:107): avc: = denied { sys_admin } for pid=3D2664 comm=3D"syz-executor" capability=3D21= scontext=3Droot:sysadm_r:sysadm_t tcontext=3Droot:sysadm_r:sysadm_t tclas= s=3Dcap_userns permissive=3D1 [ 62.298760][ T29] audit: type=3D1400 audit(1729585852.419:108): avc: = denied { mounton } for pid=3D2665 comm=3D"syz-executor" path=3D"/root/syz= kaller.CmWlf6/syz-tmp" dev=3D"sda1" ino=3D1945 scontext=3Droot:sysadm_r:sys= adm_t tcontext=3Droot:object_r:user_home_t tclass=3Ddir permissive=3D1 [ 62.363987][ T29] audit: type=3D1400 audit(1729585852.419:109): avc: = denied { mount } for pid=3D2665 comm=3D"syz-executor" name=3D"/" dev=3D"t= mpfs" ino=3D1 scontext=3Droot:sysadm_r:sysadm_t tcontext=3Dsystem_u:object_= r:tmpfs_t tclass=3Dfilesystem permissive=3D1 [ 62.408172][ T29] audit: type=3D1400 audit(1729585852.419:110): avc: = denied { mounton } for pid=3D2665 comm=3D"syz-executor" path=3D"/root/syz= kaller.CmWlf6/syz-tmp/newroot/dev" dev=3D"tmpfs" ino=3D3 scontext=3Droot:sy= sadm_r:sysadm_t tcontext=3Droot:object_r:user_tmpfs_t tclass=3Ddir permissi= ve=3D1 [ 62.416550][ T1356] BUG: sleeping function called from invalid context a= t lib/debugobjects.c:978 [ 62.442502][ T1356] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pi= d: 1356, name: kworker/u8:7 [ 62.451716][ T1356] preempt_count: 1, expected: 0 [ 62.456779][ T1356] RCU nest depth: 0, expected: 0 [ 62.461726][ T1356] 3 locks held by kworker/u8:7/1356: [ 62.467108][ T1356] #0: ffff888100089148 ((wq_completion)events_unbound= ){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 [ 62.478473][ T1356] #1: ffffc900026afd80 ((work_completion)(&sub_info->= work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 [ 62.490007][ T1356] #2: ffffffff88c0a098 (tasklist_lock){.+.+}-{2:2}, a= t: release_task+0x20c/0x1b00 [ 62.499451][ T1356] irq event stamp: 15692 [ 62.503787][ T1356] hardirqs last enabled at (15691): [] _raw_spin_unlock_irq+0x23/0x50 [ 62.513611][ T1356] hardirqs last disabled at (15692): [] _raw_write_lock_irq+0x45/0x50 [ 62.523347][ T1356] softirqs last enabled at (7630): [] handle_softirqs+0x5a3/0x8d0 [ 62.532827][ T1356] softirqs last disabled at (7533): [] irq_exit_rcu+0xac/0x110 [ 62.541954][ T1356] Preemption disabled at: [ 62.541965][ T1356] [<0000000000000000>] 0x0 [ 62.550730][ T1356] CPU: 1 UID: 0 PID: 1356 Comm: kworker/u8:7 Tainted: = G W 6.12.0-rc4-syzkaller-gc6d9e43954bf-dirty #0 [ 62.563074][ T1356] Tainted: [W]=3DWARN [ 62.566885][ T1356] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 09/13/2024 [ 62.576956][ T1356] Workqueue: events_unbound call_usermodehelper_exec_w= ork [ 62.584103][ T1356] Call Trace: [ 62.587392][ T1356] [ 62.590335][ T1356] dump_stack_lvl+0x116/0x1f0 [ 62.595041][ T1356] __might_resched+0x3c0/0x5e0 [ 62.599838][ T1356] ? __pfx___might_resched+0x10/0x10 [ 62.605599][ T1356] debug_check_no_obj_freed+0x1d9/0x620 [ 62.611180][ T1356] ? __pfx_debug_check_no_obj_freed+0x10/0x10 [ 62.617279][ T1356] ? find_held_lock+0x2d/0x110 [ 62.622068][ T1356] ? release_task+0xd24/0x1b00 [ 62.626860][ T1356] kmem_cache_free+0x27d/0x480 [ 62.631646][ T1356] ? __cleanup_sighand+0x73/0xa0 [ 62.636613][ T1356] __cleanup_sighand+0x73/0xa0 [ 62.641397][ T1356] release_task+0xd2c/0x1b00 [ 62.646017][ T1356] ? __pfx_release_task+0x10/0x10 [ 62.651067][ T1356] ? mark_held_locks+0x9f/0xe0 [ 62.655952][ T1356] wait_consider_task+0x1812/0x4100 [ 62.661187][ T1356] ? rcu_is_watching+0x12/0xc0 [ 62.665972][ T1356] ? __pfx_wait_consider_task+0x10/0x10 [ 62.671565][ T1356] ? do_wait+0x1e9/0x570 [ 62.675838][ T1356] __do_wait+0x744/0x890 [ 62.680131][ T1356] ? do_wait+0x1e9/0x570 [ 62.684493][ T1356] do_wait+0x219/0x570 [ 62.688588][ T1356] kernel_wait+0xa0/0x160 [ 62.693208][ T1356] ? __pfx_kernel_wait+0x10/0x10 [ 62.698178][ T1356] ? __pfx_child_wait_callback+0x10/0x10 [ 62.703948][ T1356] ? lock_acquire+0x2f/0xb0 [ 62.708481][ T1356] call_usermodehelper_exec_work+0xf1/0x170 [ 62.714439][ T1356] process_one_work+0x9c5/0x1ba0 [ 62.719521][ T1356] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 62.725190][ T1356] ? __pfx_process_one_work+0x10/0x10 [ 62.730949][ T1356] ? assign_work+0x1a0/0x250 [ 62.735658][ T1356] worker_thread+0x6c8/0xf00 [ 62.740297][ T1356] ? __kthread_parkme+0x148/0x220 [ 62.745435][ T1356] ? __pfx_worker_thread+0x10/0x10 [ 62.750664][ T1356] kthread+0x2c1/0x3a0 [ 62.754751][ T1356] ? _raw_spin_unlock_irq+0x23/0x50 [ 62.759972][ T1356] ? __pfx_kthread+0x10/0x10 [ 62.764597][ T1356] ret_from_fork+0x45/0x80 [ 62.769132][ T1356] ? __pfx_kthread+0x10/0x10 [ 62.773833][ T1356] ret_from_fork_asm+0x1a/0x30 [ 62.779002][ T1356] [ 62.782387][ T29] audit: type=3D1400 audit(1729585852.429:111): avc: = denied { mount } for pid=3D2665 comm=3D"syz-executor" name=3D"/" dev=3D"p= roc" ino=3D1 scontext=3Droot:sysadm_r:sysadm_t tcontext=3Dsystem_u:object_r= :proc_t tclass=3Dfilesystem permissive=3D1 [ 63.412330][ T2647] BUG: sleeping function called from invalid context a= t lib/debugobjects.c:978 [ 63.421682][ T2647] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pi= d: 2647, name: syz-execprog [ 63.430982][ T2647] preempt_count: 1, expected: 0 [ 63.435870][ T2647] RCU nest depth: 0, expected: 0 [ 63.440891][ T2647] no locks held by syz-execprog/2647. [ 63.446309][ T2647] Preemption disabled at: [ 63.446326][ T2647] [] schedule+0xe0/0x350 [ 63.456663][ T2647] CPU: 0 UID: 0 PID: 2647 Comm: syz-execprog Tainted: = G W 6.12.0-rc4-syzkaller-gc6d9e43954bf-dirty #0 [ 63.469062][ T2647] Tainted: [W]=3DWARN [ 63.472905][ T2647] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 09/13/2024 [ 63.483092][ T2647] Call Trace: [ 63.486409][ T2647] [ 63.489380][ T2647] dump_stack_lvl+0x16c/0x1f0 [ 63.494153][ T2647] __might_resched+0x3c0/0x5e0 [ 63.498995][ T2647] ? __pfx___might_resched+0x10/0x10 [ 63.504347][ T2647] debug_check_no_obj_freed+0x1d9/0x620 [ 63.509957][ T2647] ? page_ext_put+0x3e/0xd0 [ 63.514521][ T2647] ? __pfx_debug_check_no_obj_freed+0x10/0x10 [ 63.520741][ T2647] ? page_ext_put+0x48/0xd0 [ 63.525322][ T2647] free_unref_page+0x1cc/0xb50 [ 63.530155][ T2647] __mmdrop+0xd5/0x460 [ 63.534294][ T2647] finish_task_switch.isra.0+0x584/0xa40 [ 63.539995][ T2647] ? __switch_to+0x749/0x1180 [ 63.544828][ T2647] __schedule+0x1067/0x34b0 [ 63.549406][ T2647] ? __pfx___schedule+0x10/0x10 [ 63.554322][ T2647] ? schedule+0x298/0x350 [ 63.558719][ T2647] ? __pfx_lock_release+0x10/0x10 [ 63.563806][ T2647] ? trace_lock_acquire+0x14a/0x1d0 [ 63.569156][ T2647] ? lock_acquire+0x2f/0xb0 [ 63.573822][ T2647] ? schedule+0x1fd/0x350 [ 63.578214][ T2647] ? do_nanosleep+0x18a/0x510 [ 63.583000][ T2647] schedule+0xe7/0x350 [ 63.587126][ T2647] do_nanosleep+0x216/0x510 [ 63.591767][ T2647] ? __pfx___debug_object_init+0x10/0x10 [ 63.597475][ T2647] ? __pfx_do_nanosleep+0x10/0x10 [ 63.602559][ T2647] ? __asan_memset+0x23/0x50 [ 63.607303][ T2647] ? __hrtimer_init+0x106/0x2c0 [ 63.612237][ T2647] hrtimer_nanosleep+0x146/0x370 [ 63.617262][ T2647] ? __pfx_hrtimer_nanosleep+0x10/0x10 [ 63.622788][ T2647] ? __pfx_hrtimer_wakeup+0x10/0x10 [ 63.628143][ T2647] ? __pfx_get_timespec64+0x10/0x10 [ 63.633406][ T2647] ? __x64_sys_futex+0x1e1/0x4c0 [ 63.638398][ T2647] ? __x64_sys_futex+0x1ea/0x4c0 [ 63.643396][ T2647] __x64_sys_nanosleep+0x21d/0x2b0 [ 63.648582][ T2647] ? __pfx___x64_sys_nanosleep+0x10/0x10 [ 63.654297][ T2647] do_syscall_64+0xcd/0x250 [ 63.658881][ T2647] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 63.664844][ T2647] RIP: 0033:0x475d57 [ 63.668792][ T2647] Code: 8b 44 24 20 b9 40 42 0f 00 f7 f1 48 89 04 24 b= 8 e8 03 00 00 f7 e2 48 89 44 24 08 48 89 e7 be 00 00 00 00 b8 23 00 00 00 0= f 05 <48> 83 c4 10 5d c3 cc cc cc b8 ba 00 00 00 0f 05 89 44 24 08 c3 cc [ 63.688549][ T2647] RSP: 002b:000000c00005ff18 EFLAGS: 00000202 ORIG_RAX= : 0000000000000023 [ 63.697029][ T2647] RAX: ffffffffffffffda RBX: 0000000000002710 RCX: 000= 0000000475d57 [ 63.705056][ T2647] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000= 000c00005ff18 [ 63.713088][ T2647] RBP: 000000c00005ff28 R08: 0000000000001c52 R09: 000= 07ffad9faf080 [ 63.721114][ T2647] R10: 0000000000000001 R11: 0000000000000202 R12: 000= 000c00005ff18 [ 63.729176][ T2647] R13: 000000c00007c008 R14: 000000c000006540 R15: 0ff= fffffffffffff [ 63.737225][ T2647] syzkaller build log: go env (err=3D) GO111MODULE=3D'auto' GOARCH=3D'amd64' GOBIN=3D'' GOCACHE=3D'/syzkaller/.cache/go-build' GOENV=3D'/syzkaller/.config/go/env' GOEXE=3D'' GOEXPERIMENT=3D'' GOFLAGS=3D'' GOHOSTARCH=3D'amd64' GOHOSTOS=3D'linux' GOINSECURE=3D'' GOMODCACHE=3D'/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY=3D'' GONOSUMDB=3D'' GOOS=3D'linux' GOPATH=3D'/syzkaller/jobs-2/linux/gopath' GOPRIVATE=3D'' GOPROXY=3D'https://proxy.golang.org,direct' GOROOT=3D'/usr/local/go' GOSUMDB=3D'sum.golang.org' GOTMPDIR=3D'' GOTOOLCHAIN=3D'auto' GOTOOLDIR=3D'/usr/local/go/pkg/tool/linux_amd64' GOVCS=3D'' GOVERSION=3D'go1.22.7' GCCGO=3D'gccgo' GOAMD64=3D'v1' AR=3D'ar' CC=3D'gcc' CXX=3D'g++' CGO_ENABLED=3D'1' GOMOD=3D'/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.= mod' GOWORK=3D'' CGO_CFLAGS=3D'-O2 -g' CGO_CPPFLAGS=3D'' CGO_CXXFLAGS=3D'-O2 -g' CGO_FFLAGS=3D'-O2 -g' CGO_LDFLAGS=3D'-O2 -g' PKG_CONFIG=3D'pkg-config' GOGCCFLAGS=3D'-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=3D0= -ffile-prefix-map=3D/tmp/go-build1854706326=3D/tmp/go-build -gno-record-gc= c-switches' git status (err=3D) HEAD detached at cd6fc0a301 nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sy= s/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env bin/syz-sysgen go fmt ./sys/... >/dev/null touch .descriptions GOOS=3Dlinux GOARCH=3Damd64 go build "-ldflags=3D-s -w -X github.com/google= /syzkaller/prog.GitRevision=3Dcd6fc0a3018e5d793bdcca6530622493f5e88307 -X '= github.com/google/syzkaller/prog.gitRevisionDate=3D20241018-123137'" "-tags= =3Dsyz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execpr= og github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wfr= ame-larger-than=3D16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-forma= t-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -= static-pie -std=3Dc++17 -I. -Iexecutor/_include -fpermissive -w -DGOOS_linu= x=3D1 -DGOARCH_amd64=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"cd6fc0a3018e5d793bdcca6530622493f5= e88307\" /usr/bin/ld: /tmp/ccRbnj4N.o: in function `test_cover_filter()': executor.cc:(.text+0x1424b): warning: the use of `tempnam' is dangerous, be= tter use `mkstemp' /usr/bin/ld: /tmp/ccRbnj4N.o: in function `Connection::Connect(char const*,= char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applicat= ions requires at runtime the shared libraries from the glibc version used f= or linking Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=3D17f28a5f980000 Tested on: commit: c6d9e439 Merge 6.12-rc4 into usb-next git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.= git usb-testing kernel config: https://syzkaller.appspot.com/x/.config?x=3D4a2bb21f91d75c6= 5 dashboard link: https://syzkaller.appspot.com/bug?extid=3Da234c2d63e0c171ca= 10e compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Deb= ian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D13a390a79800= 00