From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f72.google.com (mail-ot1-f72.google.com [209.85.210.72]) (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 D5F77332EC5 for ; Mon, 31 Aug 2026 10:45:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788173105; cv=none; b=YoKkNIVk4VCtLtPauS5ZMQYHuFW0zX0oBVJJRG+dUoef/chMJxbdSL3qn6RmYykW+4YaxBPIFnv1v8UW7gmKaXE11MooJNeb8p15BpdKiSsiwTJOB3cBaJecl7mSSt0X5KSgBEDLMoUjcdad3mCzM65tM/9RHXpIVNNio56SYd4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788173105; c=relaxed/simple; bh=h/ofQOuFzLFh3LkZtuK+ZEkBFD8xKCSo8qI26CRkPVo=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=ARYnrrpJRjpPYZprbZHm4L5LYZdKot4s1FB8k9tF9g93yR/JQgqom9KaPvJVvBkqUc2SLnSATnhOmd41od0jrr3PayoDVlVPfDhPHotLoYIQC7ZsWLQCb6i53NK/YsBrutWVFN9jFHJYfxCgufO2dXM8vjBxltjw4kz6dAj+Pl4= 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=209.85.210.72 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-ot1-f72.google.com with SMTP id 46e09a7af769-7ee1e335245so2478149a34.1 for ; Mon, 31 Aug 2026 03:45:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788173101; x=1788777901; h=content-transfer-encoding:content-type:to:from:subject:message-id :in-reply-to:date:mime-version:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to:content-type; bh=qhkEAgoqO6ep+MkPIh2UOwEwqFOPQY1XaLq+naxQCEc=; b=SRQfaczvJvn2vzhOKaDoHS+Nb93R8cTX1XynSoGfaLX2FuMmrMRibWI7XJIwD8KYQR idCYKrm8V+PbuKHQB7YwPCBMTgEOYx+LIBZ5fiZxC6L6B9JQdTq1mv8eOb3h2TQxkC7d ZaNZ4zTHCCl94bB5VJLQwgtf9YxwzLpNY/0NunCymn5OvnFLf3RXpYIMJpb3hf/gK+0H MFxL3IRZdgXB47CQ5uhg1wb1t0Frs96bGoo9kjD6KQ/+zFfEaslRVhJh1eufPwZ46OXr 9i+RYQ03n2lGJBhxz+EFs7NV48mjqnyFevHCPXn0Ec9cp1efseDi/ocm0TwMGHhB4Cab Vs9Q== X-Forwarded-Encrypted: i=1; AHgh+RrUMkp9oUxv3w9LGrfNfXKAWXoDn677Zig+ty6rtGfZA1StNJLEXtlrak8sP/OBwwuYHk9fjz/IcMaBlxg=@vger.kernel.org X-Gm-Message-State: AFuF++n+l3oJ0Fq4QSnehxjKZyhPA5LuaV0RHVryXZNBPIllcy2kiWFp PoX/DEWmKfByOgZZ666kNC/G8lGQowrXmYIVE0quO6tiDbDwqpToypfjQJXI2VAClhCVMNYaYNI eG4mNM5SzQuo7lQNSIFsBc/9baLkx+6sg0dggZZ9/D/OO12zIPuREUa3JSEo= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:178e:b0:4b2:b653:87ff with SMTP id 5614622812f47-4b39803b2ffmr29583819b6e.7.1788173101570; Mon, 31 Aug 2026 03:45:01 -0700 (PDT) Date: Mon, 31 Aug 2026 03:45:01 -0700 In-Reply-To: <20260831084112.410440-1-junjie.cao@intel.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a955b2d.4d659fcc.734b4.004c.GAE@google.com> Subject: Re: [syzbot] [mm?] INFO: rcu detected stall in sys_munmap (2) From: syzbot To: akpm@linux-foundation.org, bigeasy@linutronix.de, davem@davemloft.net, david@kernel.org, edumazet@google.com, harry.yoo@oracle.com, horms@kernel.org, jannh@google.com, jhs@mojatatu.com, jiri@resnulli.us, jpoimboe@kernel.org, junjie.cao@intel.com, kuba@kernel.org, liam.howlett@oracle.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, pabeni@redhat.com, peterz@infradead.org, pfalcato@suse.de, riel@surriel.com, syzkaller-bugs@googlegroups.com, vbabka@suse.cz, vinicius.gomes@intel.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: 3.236788][ T1] Mandatory Access Control activated. [ 3.238423][ T1] pnp: PnP ACPI init [ 3.269664][ T1] pnp: PnP ACPI: found 6 devices [ 3.342961][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xf= fffff, max_idle_ns: 2085701024 ns [ 3.352346][ T1] NET: Registered PF_INET protocol family [ 3.355095][ T1] IP idents hash table entries: 131072 (order: 8, 1048= 576 bytes, vmalloc) [ 3.367877][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (o= rder: 7, 294912 bytes, vmalloc) [ 3.370711][ T1] Table-perturb hash table entries: 65536 (order: 6, 2= 62144 bytes, vmalloc) [ 3.373291][ T1] TCP established hash table entries: 65536 (order: 7,= 524288 bytes, vmalloc) [ 3.385547][ T1] TCP bind hash table entries: 65536 (order: 12, 94371= 84 bytes, vmalloc hugepage) [ 3.393661][ T1] TCP: Hash tables configured (established 65536 bind = 65536) [ 3.397399][ T1] MPTCP token hash table entries: 8192 (order: 8, 7208= 96 bytes, vmalloc) [ 3.400924][ T1] UDP hash table entries: 4096 (order: 8, 1048576 byte= s, vmalloc) [ 3.404182][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 3.411572][ T1] RPC: Registered named UNIX socket transport module. [ 3.413199][ T1] RPC: Registered udp transport module. [ 3.414079][ T1] RPC: Registered tcp transport module. [ 3.414926][ T1] RPC: Registered tcp-with-tls transport module. [ 3.415874][ T1] RPC: Registered tcp NFSv4.1 backchannel transport mo= dule. [ 3.424329][ T1] NET: Registered PF_XDP protocol family [ 3.425489][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 windo= w] [ 3.426780][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff windo= w] [ 3.427855][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bff= ff window] [ 3.429423][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfef= ff window] [ 3.432220][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 3.433681][ T1] PCI: CLS 0 bytes, default 64 [ 3.434929][ T1] PCI-DMA: Using software bounce buffering for IO (SWI= OTLB) [ 3.437630][ T1] software IO TLB: mapped [mem 0x00000000b4400000-0x00= 000000b8400000] (64MB) [ 3.440304][ T1] ACPI: bus type thunderbolt registered [ 3.457158][ T60] kworker/u8:3 (60) used greatest stack depth: 27880 b= ytes left [ 3.460006][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters= , 10737418240 ms ovfl timer [ 3.483867][ T1] kvm_amd: CPU 1 isn't AMD or Hygon [ 3.484542][ T62] kworker/u8:2 (62) used greatest stack depth: 27160 b= ytes left [ 3.486256][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycle= s: 0x285ce32725a, max_idle_ns: 440795269150 ns [ 3.488472][ T1] clocksource: Switched to clocksource tsc [ 3.523013][ T1] Initialise system trusted keyrings [ 3.526797][ T1] workingset: timestamp_bits=3D40 (anon: 35) max_order= =3D21 bucket_order=3D0 (anon: 0) [ 3.535793][ T1] DLM installed [ 3.541986][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 3.550171][ T1] NFS: Registering the id_resolver key type [ 3.551232][ T1] Key type id_resolver registered [ 3.552038][ T1] Key type id_legacy registered [ 3.553117][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Regist= ering... [ 3.554408][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Drive= r Registering... [ 3.560217][ T1] smbdirect: subsystem loading... [ 3.568727][ T1] smbdirect: subsystem loaded [ 3.585999][ T1] Key type cifs.spnego registered [ 3.587259][ T1] Key type cifs.idmap registered [ 3.593788][ T1] ntfs3: Enabled Linux POSIX ACLs support [ 3.594840][ T1] ntfs3: Read-only LZX/Xpress compression included [ 3.596200][ T1] jffs2: version 2.2. (NAND) (SUMMARY) =C2=A9 2001-20= 06 Red Hat, Inc. [ 3.599424][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 3.601080][ T1] QNX4 filesystem 0.2.3 registered. [ 3.602026][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 3.604181][ T1] fuse: init (API version 7.46) [ 3.609768][ T1] orangefs_debugfs_init: called with debug mask: :none= : :0: [ 3.612294][ T1] orangefs_init: module version upstream loaded [ 3.614231][ T1] JFS: nTxBlock =3D 8192, nTxLock =3D 65536 [ 3.629821][ T1] SGI XFS with ACLs, security attributes, realtime, sc= rub, repair, quota, no debug enabled [ 3.638637][ T1] 9p: Installing v9fs 9p2000 file system support [ 3.641019][ T1] NILFS version 2 loaded [ 3.641796][ T1] befs: version: 0.9.3 [ 3.643277][ T1] ocfs2: Registered cluster interface o2cb [ 3.645240][ T1] ocfs2: Registered cluster interface user [ 3.646934][ T1] OCFS2 User DLM kernel interface loaded [ 3.669685][ T1] gfs2: GFS2 installed [ 3.684713][ T1] ceph: loaded (mds proto 32) [ 3.699225][ T1] NET: Registered PF_ALG protocol family [ 3.701213][ T1] async_tx: api initialized (async) [ 3.702013][ T1] Key type asymmetric registered [ 3.702812][ T1] Asymmetric key parser 'x509' registered [ 3.703725][ T1] Asymmetric key parser 'pkcs8' registered [ 3.704729][ T1] Key type pkcs7_test registered [ 3.706869][ T1] Block layer SCSI generic (bsg) driver version 0.4 lo= aded (major 239) [ 3.709629][ T1] io scheduler mq-deadline registered [ 3.710514][ T1] io scheduler kyber registered [ 3.711663][ T1] io scheduler bfq registered [ 3.713717][ T1] raid6: skipped pq benchmark and selected avx512x4 [ 3.734548][ T1] input: Power Button as /devices/platform/LNXPWRBN:00= /input/input0 [ 3.738269][ T1] ACPI: button: Power Button [PWRF] [ 3.742091][ T1] input: Sleep Button as /devices/platform/LNXSLPBN:00= /input/input1 [ 3.744908][ T1] ACPI: button: Sleep Button [SLPF] [ 3.747251][ T164] kworker/u8:3 (164) used greatest stack depth: 26904 = bytes left [ 3.764689][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 3.797287][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 3.798540][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for leg= acy driver [ 3.834047][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 3.835198][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for leg= acy driver [ 3.870818][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 3.871873][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for leg= acy driver [ 4.463531][ T1] N_HDLC line discipline registered with maxframe=3D40= 96 [ 4.466143][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enab= led [ 4.477632][ T1] 00:02: ttyS0 I/O:0x3f8 (irq =3D 4, base_baud =3D 115= 200) is a 16550A [ 4.494957][ T1] 00:03: ttyS1 I/O:0x2f8 (irq =3D 3, base_baud =3D 115= 200) is a 16550A [ 4.512363][ T1] 00:04: ttyS2 I/O:0x3e8 (irq =3D 6, base_baud =3D 115= 200) is a 16550A [ 4.527464][ T1] 00:05: ttyS3 I/O:0x2e8 (irq =3D 7, base_baud =3D 115= 200) is a 16550A [ 4.558586][ T1] Non-volatile memory driver v1.3 [ 4.578432][ T1] usbcore: registered new interface driver xillyusb [ 4.584967][ T1] ACPI: bus type drm_connector registered [ 4.593877][ T1] [drm] Initialized vgem 1.0.0 for vgem on minor 0 [ 4.601531][ T1] ------------[ cut here ]------------ [ 4.601561][ T1] [PLANE:35:plane-0] pixel format with alpha exposed b= ut blend mode not setup [ 4.601579][ T1] WARNING: drivers/gpu/drm/drm_mode_config.c:872 at dr= m_mode_config_validate+0xfb4/0x1be0, CPU#1: swapper/0/1 [ 4.605357][ T1] Modules linked in: [ 4.605941][ T1] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted syz= kaller #0 PREEMPT(full)=20 [ 4.607286][ T1] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 08/05/2026 [ 4.608865][ T1] RIP: 0010:drm_mode_config_validate+0xfbb/0x1be0 [ 4.610255][ T1] Code: 00 49 8b 57 18 48 89 f8 48 c1 e8 03 0f b6 04 2= 8 84 c0 74 08 3c 03 0f 8e 00 0b 00 00 48 8d 3d 5c 1f 7e 0b 41 8b b7 c8 00 0= 0 00 <67> 48 0f b9 3a e9 fa fd ff ff 48 8b 5c 24 20 e8 d1 aa 39 fc 48 8d [ 4.613458][ T1] RSP: 0000:ffffc90000067c18 EFLAGS: 00010246 [ 4.614327][ T1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000= 0000000000000 [ 4.615493][ T1] RDX: ffff888027a14860 RSI: 0000000000000023 RDI: fff= fffff91504ba0 [ 4.616662][ T1] RBP: dffffc0000000000 R08: 0000000000000001 R09: 000= 0000000000000 [ 4.617843][ T1] R10: 0000000000000001 R11: 0000000000000000 R12: fff= fed1004f77623 [ 4.619247][ T1] R13: ffffed1004f77624 R14: 0000000000000001 R15: fff= f888027bbb028 [ 4.620935][ T1] FS: 0000000000000000(0000) GS:ffff888123c65000(0000= ) knlGS:0000000000000000 [ 4.622254][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.623267][ T1] CR2: 0000000000000000 CR3: 000000000eb96000 CR4: 000= 00000003526f0 [ 4.624414][ T1] Call Trace: [ 4.624912][ T1] [ 4.625427][ T1] drm_dev_register+0x56e/0x7b0 [ 4.626244][ T1] vkms_create+0x491/0x5b0 [ 4.627147][ T1] ? __pfx_vkms_init+0x10/0x10 [ 4.627983][ T1] vkms_init+0x98/0xe0 [ 4.628641][ T1] do_one_initcall+0x11c/0x6f0 [ 4.629391][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 4.630294][ T1] ? kernel_init_freeable+0x4ca/0x7b0 [ 4.631363][ T1] kernel_init_freeable+0x6ea/0x7b0 [ 4.632148][ T1] ? __pfx_kernel_init+0x10/0x10 [ 4.632889][ T1] kernel_init+0x21/0x1e0 [ 4.633551][ T1] ? __pfx_kernel_init+0x10/0x10 [ 4.634383][ T1] ret_from_fork+0x730/0xd60 [ 4.635179][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 4.635928][ T1] ? __switch_to+0x800/0x10f0 [ 4.636696][ T1] ? __pfx_kernel_init+0x10/0x10 [ 4.637489][ T1] ret_from_fork_asm+0x1a/0x30 [ 4.638367][ T1] [ 4.638850][ T1] Kernel panic - not syncing: kernel: panic_on_warn se= t ... [ 4.640061][ T1] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted syz= kaller #0 PREEMPT(full)=20 [ 4.640168][ T1] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 08/05/2026 [ 4.640168][ T1] Call Trace: [ 4.640168][ T1] [ 4.640168][ T1] dump_stack_lvl+0x100/0x190 [ 4.640168][ T1] vpanic+0x553/0x970 [ 4.640168][ T1] ? __pfx_vpanic+0x10/0x10 [ 4.640168][ T1] panic+0xd1/0xe0 [ 4.640168][ T1] ? __pfx_panic+0x10/0x10 [ 4.640168][ T1] check_panic_on_warn.cold+0x19/0x34 [ 4.640168][ T1] ? drm_mode_config_validate+0xfb4/0x1be0 [ 4.640168][ T1] __warn.cold+0x191/0x318 [ 4.640168][ T1] __report_bug+0x30f/0x440 [ 4.640168][ T1] ? drm_mode_config_validate+0xfb4/0x1be0 [ 4.640168][ T1] ? __pfx___report_bug+0x10/0x10 [ 4.640168][ T1] ? reacquire_held_locks+0xdd/0x1f0 [ 4.640168][ T1] report_bug_entry+0xe2/0x290 [ 4.640168][ T1] ? drm_mode_config_validate+0xfbb/0x1be0 [ 4.640168][ T1] handle_bug+0x1cd/0x2a0 [ 4.640168][ T1] exc_invalid_op+0x17/0x50 [ 4.640168][ T1] asm_exc_invalid_op+0x1a/0x20 [ 4.640168][ T1] RIP: 0010:drm_mode_config_validate+0xfbb/0x1be0 [ 4.640168][ T1] Code: 00 49 8b 57 18 48 89 f8 48 c1 e8 03 0f b6 04 2= 8 84 c0 74 08 3c 03 0f 8e 00 0b 00 00 48 8d 3d 5c 1f 7e 0b 41 8b b7 c8 00 0= 0 00 <67> 48 0f b9 3a e9 fa fd ff ff 48 8b 5c 24 20 e8 d1 aa 39 fc 48 8d [ 4.640168][ T1] RSP: 0000:ffffc90000067c18 EFLAGS: 00010246 [ 4.640168][ T1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000= 0000000000000 [ 4.640168][ T1] RDX: ffff888027a14860 RSI: 0000000000000023 RDI: fff= fffff91504ba0 [ 4.640168][ T1] RBP: dffffc0000000000 R08: 0000000000000001 R09: 000= 0000000000000 [ 4.640168][ T1] R10: 0000000000000001 R11: 0000000000000000 R12: fff= fed1004f77623 [ 4.640168][ T1] R13: ffffed1004f77624 R14: 0000000000000001 R15: fff= f888027bbb028 [ 4.640168][ T1] ? drm_mode_config_validate+0xf76/0x1be0 [ 4.640168][ T1] drm_dev_register+0x56e/0x7b0 [ 4.640168][ T1] vkms_create+0x491/0x5b0 [ 4.640168][ T1] ? __pfx_vkms_init+0x10/0x10 [ 4.640168][ T1] vkms_init+0x98/0xe0 [ 4.640168][ T1] do_one_initcall+0x11c/0x6f0 [ 4.640168][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 4.640168][ T1] ? kernel_init_freeable+0x4ca/0x7b0 [ 4.640168][ T1] kernel_init_freeable+0x6ea/0x7b0 [ 4.640168][ T1] ? __pfx_kernel_init+0x10/0x10 [ 4.640168][ T1] kernel_init+0x21/0x1e0 [ 4.640168][ T1] ? __pfx_kernel_init+0x10/0x10 [ 4.640168][ T1] ret_from_fork+0x730/0xd60 [ 4.640168][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 4.640168][ T1] ? __switch_to+0x800/0x10f0 [ 4.640168][ T1] ? __pfx_kernel_init+0x10/0x10 [ 4.640168][ T1] ret_from_fork_asm+0x1a/0x30 [ 4.640168][ T1] [ 4.640168][ T1] Kernel Offset: disabled [ 4.640168][ T1] Rebooting in 86400 seconds.. 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-build2916329939=3D/tmp/go-build -gno-record-gc= c-switches' GOHOSTARCH=3D'amd64' GOHOSTOS=3D'linux' GOINSECURE=3D'' GOMOD=3D'/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.= 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'go1.26.0' GOWORK=3D'' PKG_CONFIG=3D'pkg-config' git status (err=3D) HEAD detached at 4cb2b096987 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}}' -ldflags=3D"-s -w -X github.com/google/syzkaller/pr= og.GitRevision=3D4cb2b096987c8122dc6b37eb51200b1ca7991e0f -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20260727-130118" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3D4cb2b096987c8122dc6b37eb51200b1ca7991e0f -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20260727-130118" ./sys/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 touch .descriptions GOOS=3Dlinux GOARCH=3Damd64 go build -ldflags=3D"-s -w -X github.com/google= /syzkaller/prog.GitRevision=3D4cb2b096987c8122dc6b37eb51200b1ca7991e0f -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20260727-130118" -o ./bi= n/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 -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 -DGOOS_linux=3D1 -DGOARCH= _amd64=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"4cb2b096987c8122dc6b37eb51200b1ca7= 991e0f\" /usr/bin/ld: /tmp/ccr3LZX8.o: in function `Connection::Connect(char const*,= char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applicat= ions requires at runtime the shared libraries from the glibc version used f= or linking ./tools/check-syzos.sh 2>/dev/null Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=3D1421d379580000 Tested on: commit: a8455260 ipvlan: unregister upper devices outside pnod.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.gi= t kernel config: https://syzkaller.appspot.com/x/.config?x=3D9cc692b98d9b4fd= b dashboard link: https://syzkaller.appspot.com/bug?extid=3D8785aaf121cfb2141= e0d compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Deb= ian) 2.44 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D13ffec155800= 00