From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f70.google.com (mail-oo1-f70.google.com [209.85.161.70]) (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 CBB151607A4 for ; Tue, 24 Feb 2026 04:25:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771907138; cv=none; b=hqFjHd+ddMnb9uaDQ4nhJ1Dg/JCohJcTR5NW/Xj1KWXtXU79YqkEslBEGKPsROkb0eM8JLYTkuF+jVDhIhTeEL0LcYVg/upWAaXmsyy3s7QmpBh4hAAqGBhoqahOUYgR37jjpTpbj3tyCWe9SMGKNp3Ryci08qMPalwKChFg6hc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771907138; c=relaxed/simple; bh=LKCVvbfie0oa/9gLnA7dfxUgaVZtV6olNF2DOvwGuCE=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=UWacwLeTCE38KtVQqiBBU40mNZGgS8tZ+uIDtY+t2n2tGzzCUoao99LWxff0K/UuaanRKZdCqFXRTTu6UOqD4taJMJPlo3mb6W5ii0iev7NuJVHZnpi7uuUo4xs+OLtuncbsEGY5Gi003XOZscxsZB6ftL4xwBJAb4Tipas9wmc= 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=209.85.161.70 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-oo1-f70.google.com with SMTP id 006d021491bc7-679c69b46c6so11616444eaf.0 for ; Mon, 23 Feb 2026 20:25:36 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1771907136; x=1772511936; 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=gpD8SsFXa5MMD0EINe3/zfr9LUVVn3iCHYodXvAjsMM=; b=dCVaZp95ZUMZqNvP9iG0a+FTwu+q4v2+r6EBEzNNYFzt//ZnpHkNxvtWshApsUI+sW /NvZ2c3JP7bdGw7Af8zbQoFNqHLe0028hHpEwDNblwTI+RQq007g/pXPuHIL/0URft/8 xexgVz/rB/5d/KVd2/ujgZKpTE2MJIVTK0Mn75y8c2RaHsiuuu3vJOB2KoRiw6JAuIdv FGj+YJxH8rQvsEjXwatN/Mqpf40sXTKISfnZV0Och3lV7Lu1Rqyugi80+Dz1FZtQlOht jCVlcJtWMzHRDwg+PclWkKtamW7KyuvM3q6xDXN4q3eBU3woCsYzvNITs7wNIpJWjxRJ FolQ== X-Gm-Message-State: AOJu0YxwdQKTDCuEvYUL02quqsmvvxGk3CcuaYRdTmN3sS6dEhjwsXY/ f3ZOJwNrgWffXoG9KuamFiCFYFcg5V736H02c2Mb6ko6hM+8Bd3KzORA4gZDHELjoOJ1w7ey1Et 6RCYHjeWvLHIEyXFVY7p1wD/aaGzna36FxNOqwJLonHKg5ZHJW4lhZJk35yU= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:c84:b0:676:e220:3344 with SMTP id 006d021491bc7-679c44cf601mr5733435eaf.43.1771907135825; Mon, 23 Feb 2026 20:25:35 -0800 (PST) Date: Mon, 23 Feb 2026 20:25:35 -0800 In-Reply-To: <69984159.050a0220.21cd75.01bb.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <699d283f.a00a0220.121a60.00f3.GAE@google.com> Subject: Forwarded: Re: [syzbot] [kernel?] INFO: task hung in restrict_one_thread_callback From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com. *** Subject: Re: [syzbot] [kernel?] INFO: task hung in restrict_one_thread_call= back Author: dingyihan@uniontech.com #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.gi= t 635c467cc14e --- a/security/landlock/tsync.c +++ b/security/landlock/tsync.c @@ -447,6 +447,12 @@ int landlock_restrict_sibling_threads(const struct cre= d *old_cred, shared_ctx.new_cred =3D new_cred; shared_ctx.set_no_new_privs =3D task_no_new_privs(current); =20 + /* + * Serialize concurrent TSYNC operations to prevent deadlocks + * when multiple threads call landlock_restrict_self() simultaneously. + */ + down_write(¤t->signal->exec_update_lock); + /* * We schedule a pseudo-signal task_work for each of the calling task's * sibling threads. In the task work, each thread: @@ -527,14 +533,17 @@ int landlock_restrict_sibling_threads(const struct cr= ed *old_cred, -ERESTARTNOINTR); =20 /* - * Cancel task works for tasks that did not start running yet, - * and decrement all_prepared and num_unfinished accordingly. + * Opportunistic improvement: try to cancel task works + * for tasks that did not start running yet. We do not + * have a guarantee that it cancels any of the enqueued + * task works (because task_work_run() might already have + * dequeued them). */ cancel_tsync_works(&works, &shared_ctx); =20 /* - * The remaining task works have started running, so waiting for - * their completion will finish. + * We must wait for the remaining task works to finish to + * prevent a use-after-free of the local shared_ctx. */ wait_for_completion(&shared_ctx.all_prepared); } @@ -557,5 +566,7 @@ int landlock_restrict_sibling_threads(const struct cred= *old_cred, =20 tsync_works_release(&works); =20 + up_write(¤t->signal->exec_update_lock); + return atomic_read(&shared_ctx.preparation_error); } =E5=9C=A8 2026/2/24 12:08, syzbot =E5=86=99=E9=81=93: > Hello, >=20 > syzbot tried to test the proposed patch but the build/boot failed: >=20 > team0: Port device team_slave_1 added > [ 77.956359][ T5910] batman_adv: batadv0: Adding interface: batadv_slav= e_0 > [ 77.963600][ T5910] batman_adv: batadv0: The MTU of interface batadv_s= lave_0 is too small (1500) to handle the transport of batman-adv packets. P= ackets going over this interface will be fragmented on layer2 which could i= mpact the performance. Setting the MTU to 1532 would solve the problem. > [ 77.989888][ T5910] batman_adv: batadv0: Not using interface batadv_sl= ave_0 (retrying later): interface not active > [ 78.004522][ T5910] batman_adv: batadv0: Adding interface: batadv_slav= e_1 > [ 78.011605][ T5910] batman_adv: batadv0: The MTU of interface batadv_s= lave_1 is too small (1500) to handle the transport of batman-adv packets. P= ackets going over this interface will be fragmented on layer2 which could i= mpact the performance. Setting the MTU to 1532 would solve the problem. > [ 78.038002][ T5910] batman_adv: batadv0: Not using interface batadv_sl= ave_1 (retrying later): interface not active > [ 78.080982][ T5910] hsr_slave_0: entered promiscuous mode > [ 78.087753][ T5910] hsr_slave_1: entered promiscuous mode > [ 78.233618][ T5910] netdevsim netdevsim0 netdevsim0: renamed from eth0 > [ 78.246125][ T5910] netdevsim netdevsim0 netdevsim1: renamed from eth1 > [ 78.256883][ T5910] netdevsim netdevsim0 netdevsim2: renamed from eth2 > [ 78.267118][ T5910] netdevsim netdevsim0 netdevsim3: renamed from eth3 > [ 78.297441][ T5910] bridge0: port 2(bridge_slave_1) entered blocking s= tate > [ 78.304646][ T5910] bridge0: port 2(bridge_slave_1) entered forwarding= state > [ 78.312595][ T5910] bridge0: port 1(bridge_slave_0) entered blocking s= tate > [ 78.319734][ T5910] bridge0: port 1(bridge_slave_0) entered forwarding= state > [ 78.384207][ T5910] 8021q: adding VLAN 0 to HW filter on device bond0 > [ 78.404563][ T1004] bridge0: port 1(bridge_slave_0) entered disabled s= tate > [ 78.413314][ T1004] bridge0: port 2(bridge_slave_1) entered disabled s= tate > [ 78.428785][ T5910] 8021q: adding VLAN 0 to HW filter on device team0 > [ 78.443104][ T65] bridge0: port 1(bridge_slave_0) entered blocking s= tate > [ 78.450377][ T65] bridge0: port 1(bridge_slave_0) entered forwarding= state > [ 78.464952][ T12] bridge0: port 2(bridge_slave_1) entered blocking s= tate > [ 78.472313][ T12] bridge0: port 2(bridge_slave_1) entered forwarding= state > [ 78.645479][ T5910] 8021q: adding VLAN 0 to HW filter on device batadv= 0 > [ 78.696816][ T5910] veth0_vlan: entered promiscuous mode > [ 78.709183][ T5910] veth1_vlan: entered promiscuous mode > [ 78.745020][ T5910] veth0_macvtap: entered promiscuous mode > [ 78.756102][ T5910] veth1_macvtap: entered promiscuous mode > [ 78.779292][ T5910] batman_adv: batadv0: Interface activated: batadv_s= lave_0 > [ 78.795080][ T5910] batman_adv: batadv0: Interface activated: batadv_s= lave_1 > [ 78.812914][ T12] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2= family 0 port 6081 - 0 > [ 78.824397][ T12] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2= family 0 port 6081 - 0 > [ 78.840142][ T12] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2= family 0 port 6081 - 0 > [ 78.850096][ T12] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2= family 0 port 6081 - 0 > [ 78.975137][ T13] netdevsim netdevsim0 netdevsim3 (unregistering): u= nset [1, 0] type 2 family 0 port 6081 - 0 > [ 79.080924][ T13] netdevsim netdevsim0 netdevsim2 (unregistering): u= nset [1, 0] type 2 family 0 port 6081 - 0 > [ 79.141701][ T13] netdevsim netdevsim0 netdevsim1 (unregistering): u= nset [1, 0] type 2 family 0 port 6081 - 0 > [ 79.219381][ T13] netdevsim netdevsim0 netdevsim0 (unregistering): u= nset [1, 0] type 2 family 0 port 6081 - 0 > 2026/02/24 04:06:47 executed programs: 0 > [ 79.336447][ T5143] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 = > 1 > [ 79.347436][ T5143] Bluetooth: hci0: unexpected cc 0x1003 length: 249 = > 9 > [ 79.355112][ T5143] Bluetooth: hci0: unexpected cc 0x1001 length: 249 = > 9 > [ 79.363931][ T5143] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 = > 4 > [ 79.372285][ T5143] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 = > 2 > [ 79.509332][ T5936] chnl_net:caif_netlink_parms(): no params data foun= d > [ 79.580835][ T5936] bridge0: port 1(bridge_slave_0) entered blocking s= tate > [ 79.588539][ T5936] bridge0: port 1(bridge_slave_0) entered disabled s= tate > [ 79.596107][ T5936] bridge_slave_0: entered allmulticast mode > [ 79.603587][ T5936] bridge_slave_0: entered promiscuous mode > [ 79.613548][ T5936] bridge0: port 2(bridge_slave_1) entered blocking s= tate > [ 79.620886][ T5936] bridge0: port 2(bridge_slave_1) entered disabled s= tate > [ 79.628076][ T5936] bridge_slave_1: entered allmulticast mode > [ 79.635811][ T5936] bridge_slave_1: entered promiscuous mode > [ 79.673346][ T5936] bond0: (slave bond_slave_0): Enslaving as an activ= e interface with an up link > [ 79.687123][ T5936] bond0: (slave bond_slave_1): Enslaving as an activ= e interface with an up link > [ 79.721491][ T5936] team0: Port device team_slave_0 added > [ 79.729676][ T5936] team0: Port device team_slave_1 added > [ 79.759645][ T5936] batman_adv: batadv0: Adding interface: batadv_slav= e_0 > [ 79.766762][ T5936] batman_adv: batadv0: The MTU of interface batadv_s= lave_0 is too small (1500) to handle the transport of batman-adv packets. P= ackets going over this interface will be fragmented on layer2 which could i= mpact the performance. Setting the MTU to 1532 would solve the problem. > [ 79.793316][ T5936] batman_adv: batadv0: Not using interface batadv_sl= ave_0 (retrying later): interface not active > [ 79.806250][ T5936] batman_adv: batadv0: Adding interface: batadv_slav= e_1 > [ 79.816021][ T5936] batman_adv: batadv0: The MTU of interface batadv_s= lave_1 is too small (1500) to handle the transport of batman-adv packets. P= ackets going over this interface will be fragmented on layer2 which could i= mpact the performance. Setting the MTU to 1532 would solve the problem. > [ 79.842146][ T5936] batman_adv: batadv0: Not using interface batadv_sl= ave_1 (retrying later): interface not active > [ 79.891341][ T5936] hsr_slave_0: entered promiscuous mode > [ 79.898314][ T5936] hsr_slave_1: entered promiscuous mode > [ 79.906509][ T5936] debugfs: 'hsr0' already exists in 'hsr' > [ 79.913302][ T5936] Cannot create hsr debugfs directory > [ 81.411273][ T51] Bluetooth: hci0: command tx timeout > [ 81.652909][ T42] cfg80211: failed to load regulatory.db > [ 81.863344][ T13] bridge_slave_1: left allmulticast mode > [ 81.869093][ T13] bridge_slave_1: left promiscuous mode > [ 81.875947][ T13] bridge0: port 2(bridge_slave_1) entered disabled s= tate > [ 81.886804][ T13] bridge_slave_0: left allmulticast mode > [ 81.895320][ T13] bridge_slave_0: left promiscuous mode > [ 81.902418][ T13] bridge0: port 1(bridge_slave_0) entered disabled s= tate > [ 82.056915][ T13] bond0 (unregistering): (slave bond_slave_0): Relea= sing backup interface > [ 82.067689][ T13] bond0 (unregistering): (slave bond_slave_1): Relea= sing backup interface > [ 82.077661][ T13] bond0 (unregistering): Released all slaves > [ 82.165586][ T13] hsr_slave_0: left promiscuous mode > [ 82.171808][ T13] hsr_slave_1: left promiscuous mode > [ 82.177965][ T13] batman_adv: batadv0: Interface deactivated: batadv= _slave_0 > [ 82.188972][ T13] batman_adv: batadv0: Removing interface: batadv_sl= ave_0 > [ 82.201305][ T13] batman_adv: batadv0: Interface deactivated: batadv= _slave_1 > [ 82.208712][ T13] batman_adv: batadv0: Removing interface: batadv_sl= ave_1 > [ 82.224168][ T13] veth1_macvtap: left promiscuous mode > [ 82.229800][ T13] veth0_macvtap: left promiscuous mode > [ 82.235949][ T13] veth1_vlan: left promiscuous mode > [ 82.243307][ T13] veth0_vlan: left promiscuous mode > [ 82.524939][ T13] team0 (unregistering): Port device team_slave_1 re= moved > [ 82.542673][ T13] team0 (unregistering): Port device team_slave_0 re= moved > [ 82.750272][ C1] list_del corruption, ffff88802a450890->next is NUL= L > [ 82.757771][ C1] ------------[ cut here ]------------ > [ 82.763241][ C1] kernel BUG at lib/list_debug.c:53! > [ 82.768569][ C1] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI > [ 82.774843][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted s= yzkaller #0 PREEMPT(full)=20 > [ 82.783771][ C1] Hardware name: Google Google Compute Engine/Google= Compute Engine, BIOS Google 02/12/2026 > [ 82.793910][ C1] RIP: 0010:__list_del_entry_valid_or_report+0xdf/0x= 190 > [ 82.800835][ C1] Code: 49 39 1f 0f 85 9e 00 00 00 b0 01 5b 41 5c 41= 5d 41 5e 41 5f c3 cc cc cc cc cc 48 c7 c7 40 c1 29 8c 48 89 de e8 42 29 65= fc 90 <0f> 0b 48 c7 c7 a0 c1 29 8c 48 89 de e8 30 29 65 fc 90 0f 0b 4c 89 > [ 82.820420][ C1] RSP: 0018:ffffc90000a08d58 EFLAGS: 00010046 > [ 82.826480][ C1] RAX: 0000000000000033 RBX: ffff88802a450890 RCX: e= 58e7f17a2332a00 > [ 82.834525][ C1] RDX: 0000000000000100 RSI: 0000000000000102 RDI: 0= 000000000000000 > [ 82.842485][ C1] RBP: 0000000000000203 R08: ffffc90000a08ae7 R09: 1= ffff9200014115c > [ 82.850447][ C1] R10: dffffc0000000000 R11: fffff5200014115d R12: 1= ffff1100548a112 > [ 82.858428][ C1] R13: dffffc0000000000 R14: 0000000000000000 R15: 0= 000000000000000 > [ 82.866388][ C1] FS: 0000000000000000(0000) GS:ffff888125109000(00= 00) knlGS:0000000000000000 > [ 82.875311][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 82.881921][ C1] CR2: 00007f396a9de368 CR3: 000000000e74c000 CR4: 0= 0000000003526f0 > [ 82.889883][ C1] Call Trace: > [ 82.893147][ C1] > [ 82.896012][ C1] dst_destroy+0x202/0x5a0 > [ 82.900422][ C1] ? _raw_spin_unlock_irqrestore+0x30/0x80 > [ 82.906213][ C1] ? rcu_core+0x751/0x1070 > [ 82.910617][ C1] ? __pfx_dst_destroy_rcu+0x10/0x10 > [ 82.915891][ C1] rcu_core+0x7cd/0x1070 > [ 82.920126][ C1] ? __pfx_rcu_core+0x10/0x10 > [ 82.924791][ C1] ? sched_balance_domains+0x13a/0x950 > [ 82.930242][ C1] handle_softirqs+0x22a/0x870 > [ 82.935088][ C1] ? __irq_exit_rcu+0x5f/0x150 > [ 82.939842][ C1] __irq_exit_rcu+0x5f/0x150 > [ 82.944421][ C1] irq_exit_rcu+0x9/0x30 > [ 82.948653][ C1] sysvec_apic_timer_interrupt+0xa6/0xc0 > [ 82.954279][ C1] > [ 82.957194][ C1] > [ 82.960106][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 > [ 82.966079][ C1] RIP: 0010:pv_native_safe_halt+0xf/0x20 > [ 82.971695][ C1] Code: ee 73 02 c3 cc cc cc cc cc cc cc 90 90 90 90= 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 43 5d 10 00= fb f4 7c ea 02 00 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 > [ 82.991282][ C1] RSP: 0018:ffffc90000197e20 EFLAGS: 00000242 > [ 82.997334][ C1] RAX: 0000000000045cc1 RBX: ffffffff819ad30d RCX: 0= 000000080000001 > [ 83.005293][ C1] RDX: 0000000000000001 RSI: ffffffff8e013334 RDI: f= fffffff8c29be00 > [ 83.013439][ C1] RBP: ffffc90000197f10 R08: ffff8880b853395b R09: 1= ffff110170a672b > [ 83.021511][ C1] R10: dffffc0000000000 R11: ffffed10170a672c R12: f= fffffff9033b6b0 > [ 83.029470][ C1] R13: 1ffff11003b5e000 R14: 0000000000000001 R15: 0= 000000000000001 > [ 83.037433][ C1] ? do_idle+0x1bd/0x500 > [ 83.041683][ C1] default_idle+0x9/0x20 > [ 83.045914][ C1] default_idle_call+0x72/0xb0 > [ 83.050753][ C1] do_idle+0x1bd/0x500 > [ 83.054807][ C1] ? _raw_spin_unlock_irqrestore+0x4c/0x80 > [ 83.060598][ C1] ? __pfx_do_idle+0x10/0x10 > [ 83.065174][ C1] ? _raw_spin_unlock_irqrestore+0x30/0x80 > [ 83.071057][ C1] cpu_startup_entry+0x43/0x60 > [ 83.075812][ C1] start_secondary+0x101/0x110 > [ 83.080648][ C1] common_startup_64+0x13e/0x147 > [ 83.085576][ C1] > [ 83.088575][ C1] Modules linked in: > [ 83.092472][ C1] ---[ end trace 0000000000000000 ]--- > [ 83.097909][ C1] RIP: 0010:__list_del_entry_valid_or_report+0xdf/0x= 190 > [ 83.104866][ C1] Code: 49 39 1f 0f 85 9e 00 00 00 b0 01 5b 41 5c 41= 5d 41 5e 41 5f c3 cc cc cc cc cc 48 c7 c7 40 c1 29 8c 48 89 de e8 42 29 65= fc 90 <0f> 0b 48 c7 c7 a0 c1 29 8c 48 89 de e8 30 29 65 fc 90 0f 0b 4c 89 > [ 83.124458][ C1] RSP: 0018:ffffc90000a08d58 EFLAGS: 00010046 > [ 83.130525][ C1] RAX: 0000000000000033 RBX: ffff88802a450890 RCX: e= 58e7f17a2332a00 > [ 83.138482][ C1] RDX: 0000000000000100 RSI: 0000000000000102 RDI: 0= 000000000000000 > [ 83.146435][ C1] RBP: 0000000000000203 R08: ffffc90000a08ae7 R09: 1= ffff9200014115c > [ 83.154477][ C1] R10: dffffc0000000000 R11: fffff5200014115d R12: 1= ffff1100548a112 > [ 83.162435][ C1] R13: dffffc0000000000 R14: 0000000000000000 R15: 0= 000000000000000 > [ 83.170390][ C1] FS: 0000000000000000(0000) GS:ffff888125109000(00= 00) knlGS:0000000000000000 > [ 83.179304][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 83.185872][ C1] CR2: 00007f396a9de368 CR3: 000000000e74c000 CR4: 0= 0000000003526f0 > [ 83.193840][ C1] Kernel panic - not syncing: Fatal exception in int= errupt > [ 83.201135][ C1] Kernel Offset: disabled > [ 83.205437][ C1] Rebooting in 86400 seconds.. >=20 >=20 > syzkaller build log: > go env (err=3D) > AR=3D'ar' > CC=3D'gcc' > CGO_CFLAGS=3D'-O2 -g' > CGO_CPPFLAGS=3D'' > CGO_CXXFLAGS=3D'-O2 -g' > CGO_ENABLED=3D'1' > CGO_FFLAGS=3D'-O2 -g' > CGO_LDFLAGS=3D'-O2 -g' > CXX=3D'g++' > GCCGO=3D'gccgo' > GO111MODULE=3D'auto' > GOAMD64=3D'v1' > GOARCH=3D'amd64' > GOAUTH=3D'netrc' > GOBIN=3D'' > GOCACHE=3D'/syzkaller/.cache/go-build' > GOCACHEPROG=3D'' > GODEBUG=3D'' > GOENV=3D'/syzkaller/.config/go/env' > GOEXE=3D'' > GOEXPERIMENT=3D'' > GOFIPS140=3D'off' > GOFLAGS=3D'' > GOGCCFLAGS=3D'-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length= =3D0 -ffile-prefix-map=3D/tmp/go-build3187194119=3D/tmp/go-build -gno-recor= d-gcc-switches' > GOHOSTARCH=3D'amd64' > GOHOSTOS=3D'linux' > GOINSECURE=3D'' > GOMOD=3D'/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/g= o.mod' > 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' > GOTELEMETRY=3D'local' > GOTELEMETRYDIR=3D'/syzkaller/.config/go/telemetry' > GOTMPDIR=3D'' > GOTOOLCHAIN=3D'auto' > GOTOOLDIR=3D'/usr/local/go/pkg/tool/linux_amd64' > GOVCS=3D'' > GOVERSION=3D'go1.24.4' > GOWORK=3D'' > PKG_CONFIG=3D'pkg-config' >=20 > git status (err=3D) > HEAD detached at 1e62d19825 > nothing to commit, working tree clean >=20 >=20 > 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/contrib= uting.md#using-syz-env > go list -f '{{.Stale}}' -ldflags=3D"-s -w -X github.com/google/syzkaller/= prog.GitRevision=3D1e62d1982527c3b4e18df04d61f2560fa1f434cc -X github.com/g= oogle/syzkaller/prog.gitRevisionDate=3D20260213-152336" ./sys/syz-sysgen |= grep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkall= er/prog.GitRevision=3D1e62d1982527c3b4e18df04d61f2560fa1f434cc -X github.co= m/google/syzkaller/prog.gitRevisionDate=3D20260213-152336" ./sys/syz-sysge= n > 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/contrib= uting.md#using-syz-env > bin/syz-sysgen > touch .descriptions > GOOS=3Dlinux GOARCH=3Damd64 go build -ldflags=3D"-s -w -X github.com/goog= le/syzkaller/prog.GitRevision=3D1e62d1982527c3b4e18df04d61f2560fa1f434cc -X= github.com/google/syzkaller/prog.gitRevisionDate=3D20260213-152336" -o ./= bin/linux_amd64/syz-execprog 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 -W= frame-larger-than=3D16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-for= mat-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument= -static-pie -std=3Dc++17 -I. -Iexecutor/_include -DGOOS_linux=3D1 -DGOAR= CH_amd64=3D1 \ > -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"1e62d1982527c3b4e18df04d61f2560f= a1f434cc\" > /usr/bin/ld: /tmp/ccAQ1hzd.o: in function `Connection::Connect(char const= *, char const*)': > executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7Connect= EPKcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applic= ations requires at runtime the shared libraries from the glibc version used= for linking > ./tools/check-syzos.sh 2>/dev/null >=20 >=20 > Error text is too large and was truncated, full error text is at: > https://syzkaller.appspot.com/x/error.txt?x=3D11c2155a580000 >=20 >=20 > Tested on: >=20 > commit: 779cae95 Add linux-next specific files for 20260223 > git tree: linux-next > kernel config: https://syzkaller.appspot.com/x/.config?x=3Dee920513e4dec= a5f > dashboard link: https://syzkaller.appspot.com/bug?extid=3D7ea2f5e9dfd4682= 01817 > compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25= a-1~exp1~20251221153213.50), Debian LLD 21.1.8 > patch: https://syzkaller.appspot.com/x/patch.diff?x=3D1782455a58= 0000 >=20 >=20