From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f200.google.com (mail-oi1-f200.google.com [209.85.167.200]) (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 7E1BD3DDB03 for ; Wed, 23 Sep 2026 22:01:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790200865; cv=none; b=fNtLtER8IY+PGDeInFSLfZlDdsRwhkhK1VJ1RT5ISV4tsW2DRrabCJJe7IbRi7QrrVwFmf/STX465lcrFbU6ihOsAYPPiOR2fAE7savdfLLKSxpUgXplnz+J+XA3Brd4zp9lIhdcJaV2aF2MvpJrkqD4bo7rOt4NVhwIRNATp6A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790200865; c=relaxed/simple; bh=nALnp8J0kmSBRXGTa5UATe1pe0a31PCyBJxcf4U9b9I=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=LQ7nwBgA0Z+gVDAjoJlz6NmKT2ZzDWry9mVTwbcLQpVVrIRE0bA8WgEbLlMfLFPc4NaMzEEIuQ5AU6o+Nr1IBnzYyvtgcDEtHB624Y5GWMLl03uxeYSbqTu6Sq9HLvdJ885Q219sjRQ/1KxxAMAMockL2bjVw5kbCcGnkLnZKw8= 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=209.85.167.200 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-oi1-f200.google.com with SMTP id 5614622812f47-4c467e19391so2767995b6e.3 for ; Wed, 23 Sep 2026 15:01:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790200862; x=1790805662; 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=znmcBXeLRP+rJX05Zo8WD6IDGUgUq827202TM0kus88=; b=DpRYnu/8k97JoLkM28ZbBeB8OXFqjiT1A+rpeu1ezJC6LCvLnjNumPjZw3ZmNaQXIX cTv5wBOXgKD0Q6BjkJjnnvDa2EOmshTWhNL1qGUI6pDvoNcv/Qvbzkzo7Znq68SZnhS2 NvrAG+wYW+ujjp1Jd+ulYL1kMCpRu3hNq64wfkTQwVyvl+soYRtappl3LsY4TBJXO+cK A3j6U29TU1ki6PDkKHs7//Ukrs7NhoIDLoqTM5rPSveHLebZYHxHJZ3bytuRIwYJHdFS 0L+dplYTo+BHcf/CIHe4HAbUMOJK0UQBmVhMvBuzd6qyN/wY7klTS2+d1hUglxzmTulE pyGg== X-Gm-Message-State: AFuF++kn9A2k2OKMFptSShsVlvuGyZfFQaXK8VEzGKEfwO5b6BxA8hpf /5uQDL4/Vn/HdJWDgj8lOEOuxubcuNcIj6eAnNmN6Bqen7gHo50RAzhAL57PIDol3hCxid0hRNc Jr8LJJv798eQOPpydvpFiVMQXPhAQvq//l7Atv9+XsC9mGXkSCdB9zrccysk= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:1303:b0:4cc:3535:1998 with SMTP id 5614622812f47-4d72c13d9camr603128b6e.10.1790200862387; Wed, 23 Sep 2026 15:01:02 -0700 (PDT) Date: Wed, 23 Sep 2026 15:01:02 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6ab44c1e.fb6b21f1.1b3075.0002.GAE@google.com> Subject: Re: [syzbot] [usb?] INFO: task hung in usbatm_usb_disconnect (2) From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, valigurasm@gmail.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: lost connection to test machine Warning: Permanently added '10.128.1.106' (ED25519) to the list of known ho= sts. 2026/09/23 21:58:53 parsed 1 programs 2026/09/23 21:58:53 serving rpc on tcp://36741 [ 108.303160][ T923] cfg80211: failed to load regulatory.db [ 112.594660][ T5628] cgroup: Unknown subsys name 'net' [ 112.732732][ T5628] cgroup: Unknown subsys name 'cpuset' [ 112.746517][ T5628] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size =3D 127995904 bytes [ 114.653895][ T5628] Adding 124996k swap on ./swap-file. Priority:0 exte= nts:1 across:124996k=20 [ 118.241459][ T5649] soft_limit_in_bytes is deprecated and will be remove= d. Writing any value to this file has no effect. Please report your usecase= to linux-mm@kvack.org if you depend on this functionality. [ 118.312791][ T5649] ebtables: xtables 32bit compat interface no longer s= upported in namespaces and will be removed soon. [ 118.342551][ T5649] arp_tables: xtables 32bit compat interface no longer= supported in namespaces and will be removed soon. [ 118.935095][ T1161] wlan0: Created IBSS using preconfigured BSSID 50:50:= 50:50:50:50 [ 118.935132][ T1161] wlan0: Creating new IBSS network, BSSID 50:50:50:50:= 50:50 [ 119.314186][ T60] wlan1: Created IBSS using preconfigured BSSID 50:50:= 50:50:50:50 [ 119.314208][ T60] wlan1: Creating new IBSS network, BSSID 50:50:50:50:= 50:50 [ 119.514008][ T5659] ip_tables: xtables 32bit compat interface no longer = supported in namespaces and will be removed soon. [ 119.514671][ T5659] ip6_tables: xtables 32bit compat interface no longer= supported in namespaces and will be removed soon. [ 120.499036][ T5685] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > = 1 [ 120.504897][ T5685] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > = 9 [ 120.505931][ T5685] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > = 9 [ 120.507278][ T5685] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > = 4 [ 120.541791][ T5685] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > = 2 [ 122.840866][ T5680] bridge0: port 1(bridge_slave_0) entered blocking sta= te [ 122.841743][ T5680] bridge0: port 1(bridge_slave_0) entered disabled sta= te [ 122.842082][ T5680] bridge_slave_0: entered allmulticast mode [ 122.862531][ T5680] bridge_slave_0: entered promiscuous mode [ 122.889547][ T5680] bridge0: port 2(bridge_slave_1) entered blocking sta= te [ 122.889656][ T5680] bridge0: port 2(bridge_slave_1) entered disabled sta= te [ 122.889794][ T5680] bridge_slave_1: entered allmulticast mode [ 122.891937][ T5680] bridge_slave_1: entered promiscuous mode [ 122.984739][ T5680] bond0: (slave bond_slave_0): Enslaving as an active = interface with an up link [ 123.001661][ T5680] bond0: (slave bond_slave_1): Enslaving as an active = interface with an up link [ 123.051936][ T5680] team0: Port device team_slave_0 added [ 123.055615][ T5680] team0: Port device team_slave_1 added [ 123.112267][ T5680] batman_adv: batadv0: Adding interface: batadv_slave_= 0 [ 123.112288][ T5680] batman_adv: batadv0: The MTU of interface batadv_sla= ve_0 is too small (1500) to handle the transport of batman-adv packets. Pac= kets going over this interface will be fragmented on layer2 which could imp= act the performance. Setting the MTU to 1532 would solve the problem. [ 123.112327][ T5680] batman_adv: batadv0: Not using interface batadv_slav= e_0 (retrying later): interface not active [ 123.116516][ T5680] batman_adv: batadv0: Adding interface: batadv_slave_= 1 [ 123.116534][ T5680] batman_adv: batadv0: The MTU of interface batadv_sla= ve_1 is too small (1500) to handle the transport of batman-adv packets. Pac= kets going over this interface will be fragmented on layer2 which could imp= act the performance. Setting the MTU to 1532 would solve the problem. [ 123.116558][ T5680] batman_adv: batadv0: Not using interface batadv_slav= e_1 (retrying later): interface not active [ 123.261249][ T5680] hsr_slave_0: entered promiscuous mode [ 123.262263][ T5680] hsr_slave_1: entered promiscuous mode [ 123.471857][ T5680] netdevsim netdevsim8 netdevsim0: renamed from eth0 [ 123.487856][ T5680] 8021q: adding VLAN 0 to HW filter on device netdevsi= m0 [ 123.489120][ T5680] netdevsim netdevsim8 netdevsim1: renamed from eth1 [ 123.493156][ T5680] 8021q: adding VLAN 0 to HW filter on device netdevsi= m1 [ 123.494176][ T5680] netdevsim netdevsim8 netdevsim2: renamed from eth2 [ 123.504829][ T5680] 8021q: adding VLAN 0 to HW filter on device netdevsi= m2 [ 123.507973][ T5680] netdevsim netdevsim8 netdevsim3: renamed from eth3 [ 123.548418][ T5680] 8021q: adding VLAN 0 to HW filter on device netdevsi= m3 [ 123.652099][ T5680] 8021q: adding VLAN 0 to HW filter on device bond0 [ 123.685093][ T5680] 8021q: adding VLAN 0 to HW filter on device team0 [ 123.702139][ T60] bridge0: port 1(bridge_slave_0) entered blocking sta= te [ 123.702279][ T60] bridge0: port 1(bridge_slave_0) entered forwarding s= tate [ 123.730774][ T78] bridge0: port 2(bridge_slave_1) entered blocking sta= te [ 123.730885][ T78] bridge0: port 2(bridge_slave_1) entered forwarding s= tate [ 124.170694][ T5680] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 124.430316][ T5680] veth0_vlan: entered promiscuous mode [ 124.447342][ T5680] veth1_vlan: entered promiscuous mode [ 124.488229][ T5680] veth0_macvtap: entered promiscuous mode [ 124.492929][ T5680] veth1_macvtap: entered promiscuous mode [ 124.527631][ T5680] batman_adv: batadv0: Interface activated: batadv_sla= ve_0 [ 124.540115][ T5680] batman_adv: batadv0: Interface activated: batadv_sla= ve_1 execution of simple program fails: NOTFAIL: arptable checkpoint: getsockopt= (ARPT_SO_GET_ENTRIES) failed. table=3Dfilter (errno 22: Invalid argument). [ 124.647568][ T1161] netdevsim netdevsim8 netdevsim0: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 124.647619][ T1161] netdevsim netdevsim8 netdevsim1: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 124.647655][ T1161] netdevsim netdevsim8 netdevsim2: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 124.647690][ T1161] netdevsim netdevsim8 netdevsim3: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 124.806492][ T1161] netdevsim netdevsim8 netdevsim3 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 124.903314][ T1161] netdevsim netdevsim8 netdevsim2 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 124.980877][ T1161] netdevsim netdevsim8 netdevsim1 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 125.116872][ T1161] netdevsim netdevsim8 netdevsim0 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 125.883310][ T1161] bridge_slave_1: left allmulticast mode [ 125.883361][ T1161] bridge_slave_1: left promiscuous mode [ 125.884401][ T1161] bridge0: port 2(bridge_slave_1) entered disabled sta= te [ 125.920237][ T1161] bridge_slave_0: left allmulticast mode [ 125.920268][ T1161] bridge_slave_0: left promiscuous mode [ 125.920607][ T1161] bridge0: port 1(bridge_slave_0) entered disabled sta= te [ 126.095488][ T1161] bond0 (unregistering): (slave bond_slave_0): Releasi= ng backup interface [ 126.110922][ T1161] bond0 (unregistering): (slave bond_slave_1): Releasi= ng backup interface [ 126.112236][ T1161] bond0 (unregistering): Released all slaves [ 126.223248][ T1161] hsr_slave_0: left promiscuous mode [ 126.226835][ T1161] hsr_slave_1: left promiscuous mode [ 126.233387][ T1161] batman_adv: batadv0: Interface deactivated: batadv_s= lave_0 [ 126.233431][ T1161] batman_adv: batadv0: Removing interface: batadv_slav= e_0 [ 126.241512][ T1161] batman_adv: batadv0: Interface deactivated: batadv_s= lave_1 [ 126.241585][ T1161] batman_adv: batadv0: Removing interface: batadv_slav= e_1 [ 126.286396][ T1161] veth1_macvtap: left promiscuous mode [ 126.286461][ T1161] veth0_macvtap: left promiscuous mode [ 126.286648][ T1161] veth1_vlan: left promiscuous mode [ 126.286760][ T1161] veth0_vlan: left promiscuous mode [ 126.654559][ T1161] team0 (unregistering): Port device team_slave_1 remo= ved [ 126.682089][ T1161] team0 (unregistering): Port device team_slave_0 remo= ved [ 126.875676][ T5279] 8021q: adding VLAN 0 to HW filter on device eth1 [ 127.409335][ T5279] 8021q: adding VLAN 0 to HW filter on device eth2 [ 127.993497][ T5279] 8021q: adding VLAN 0 to HW filter on device eth3 [ 128.438182][ T5279] 8021q: adding VLAN 0 to HW filter on device eth4 [ 139.019729][ T1313] ieee802154 phy0 wpan0: encryption failed: -22 [ 139.019831][ T1313] ieee802154 phy1 wpan1: encryption failed: -22 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-build3081947690=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 853b104bb45 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=3D853b104bb454141a5b0fc0e4218ec78e9f34ffb1 -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20260918-062331" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3D853b104bb454141a5b0fc0e4218ec78e9f34ffb1 -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20260918-062331" ./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=3D853b104bb454141a5b0fc0e4218ec78e9f34ffb1 -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20260918-062331" -o ./bi= n/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_386 x86_64-linux-gnu-g++ -o ./bin/linux_386/syz-executor executor/executor.cc \ -m32 -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= _386=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"853b104bb454141a5b0fc0e4218ec78e9f= 34ffb1\" /usr/bin/ld: /tmp/cctVKtvW.o: in function `Connection::Connect(char const*,= char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x145): 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 [INFO] Unsupported architecture '386', skipping check. Tested on: commit: fe2ec837 Merge tag 'hid-for-linus-2026092202' of git:/.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3D9d4242cb1c54cdf= 7 dashboard link: https://syzkaller.appspot.com/bug?extid=3D9ca2c9f85bd8b5e46= 516 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-= 1~exp1~20260613092250.77), Debian LLD 22.1.8 userspace arch: i386 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D111234055800= 00