From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f198.google.com (mail-oi1-f198.google.com [209.85.167.198]) (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 4B00D3A3E72 for ; Wed, 23 Sep 2026 23:25:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790205958; cv=none; b=CwMjWwbGKGOu4fTmNtpdSn62BEduHojNW+BsWecWlL5h1up2KFINLcqBvxzlLA/UvTf0QDse5+Kg3KSR97zqFe/hBOFJz+KLAF5lSn0/deJOKllOmlvG5mI+wG1p1XN4TMQEdRX/PSmLOMpagtHzSdwMaFJFQh5dvc430js/rQg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790205958; c=relaxed/simple; bh=UDMYcoFOtKBAIydWZlFUmiGQh998nMACarhzwVJvnPQ=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=dBxcHhIIqbwYJI9Wxm1v+JKubkIZD3WehY/L/mZAw4pnPlh+Y8bWj54lI5kuLPvPa4Fo2p0acg5Ul5+oysHAepjIojgNzDLIxcSB27Pxnc85C6tE3WJF5Zg/+V61k+nE/3Swj32qgrA9FbXMZkUh9y8sKWZ4ZxDKH5f8CCiFA9w= 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=209.85.167.198 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-f198.google.com with SMTP id 5614622812f47-4cb254da90eso2664258b6e.0 for ; Wed, 23 Sep 2026 16:25:56 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790205955; x=1790810755; h=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=dkazD8KibbfYcEsOUr3qllPGXLP/mYEbB5Yc3z7dgGw=; b=NsWmTrQw27gGbp7FFL3zNCjs6mDoA0zNjAd7rt0DIklMbULrY+47ITUwUyP4W+gbmt kQNG5vKes0EyMM4dFfoySq/UH/vCO+xCFuFlenQ/AiuGDnEvMIVCRIbonszg3+42QU8U 472PA1vGdfWU3EP7e8BpPjaZh5M69vh2DnhN2bFjJTBg/89QQTgOsQ2modB+e/WG/x1t PbY0ZKXJmmzaA5QaJsEvi9VkwSfenGq1S8wX6UzEoq8iEdITf42YD4dctDMvFPNHOIpf Bir0n/r7N3t/k0XthzfXnYYhJ0jMaqNsp+FuWDJ1AesL4701xq83jNvJ2PNLoy1h9VlK q1Sg== X-Gm-Message-State: AFuF++lcx7Oti7BoHK0sm2RUtler7jYF6Ke7rx4NGMWGHWO6m+wsdvd1 g3dnrVSg1NaEKFweI+t3cqgss8boReBFwun/bwxuAi4/WvyKpOpolvY2VdInDiX1rAk+Mce5+fR xrcwPOEfV7foJdjb0ml90v7EhmRQwTKPRAeppWqJ2LluDJTNslmzSrla6kMs= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:4f69:b0:4c5:7d0d:7a5f with SMTP id 5614622812f47-4d72c1440bbmr860561b6e.6.1790205955216; Wed, 23 Sep 2026 16:25:55 -0700 (PDT) Date: Wed, 23 Sep 2026 16:25:55 -0700 In-Reply-To: <6ab152fc.71f81b7d.15fa6d.002f.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6ab46003.80e1c6cc.1e8e5f.0005.GAE@google.com> Subject: Forwarded: Re: [syzbot] [usb?] INFO: task hung in usbatm_usb_disconnect (2) From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com. *** Subject: Re: [syzbot] [usb?] INFO: task hung in usbatm_usb_disconnect (2) Author: valigurasm@gmail.com #syz test: upstream master On Thu, 24 Sept 2026, 01:01 syzbot, < syzbot+9ca2c9f85bd8b5e46516@syzkaller.appspotmail.com> wrote: > 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 > hosts. > 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 = 127995904 bytes > [ 114.653895][ T5628] Adding 124996k swap on ./swap-file. Priority:0 > extents:1 across:124996k > [ 118.241459][ T5649] soft_limit_in_bytes is deprecated and will be > removed. 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 > supported 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 > state > [ 122.841743][ T5680] bridge0: port 1(bridge_slave_0) entered disabled > state > [ 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 > state > [ 122.889656][ T5680] bridge0: port 2(bridge_slave_1) entered disabled > state > [ 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_slave_0 is too small (1500) to handle the transport of batman-adv > packets. Packets going over this interface will be fragmented on layer2 > which could impact the performance. Setting the MTU to 1532 would solve the > problem. > [ 123.112327][ T5680] batman_adv: batadv0: Not using interface > batadv_slave_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_slave_1 is too small (1500) to handle the transport of batman-adv > packets. Packets going over this interface will be fragmented on layer2 > which could impact the performance. Setting the MTU to 1532 would solve the > problem. > [ 123.116558][ T5680] batman_adv: batadv0: Not using interface > batadv_slave_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 > netdevsim0 > [ 123.489120][ T5680] netdevsim netdevsim8 netdevsim1: renamed from eth1 > [ 123.493156][ T5680] 8021q: adding VLAN 0 to HW filter on device > netdevsim1 > [ 123.494176][ T5680] netdevsim netdevsim8 netdevsim2: renamed from eth2 > [ 123.504829][ T5680] 8021q: adding VLAN 0 to HW filter on device > netdevsim2 > [ 123.507973][ T5680] netdevsim netdevsim8 netdevsim3: renamed from eth3 > [ 123.548418][ T5680] 8021q: adding VLAN 0 to HW filter on device > netdevsim3 > [ 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 > state > [ 123.702279][ T60] bridge0: port 1(bridge_slave_0) entered forwarding > state > [ 123.730774][ T78] bridge0: port 2(bridge_slave_1) entered blocking > state > [ 123.730885][ T78] bridge0: port 2(bridge_slave_1) entered forwarding > state > [ 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_slave_0 > [ 124.540115][ T5680] batman_adv: batadv0: Interface activated: > batadv_slave_1 > execution of simple program fails: NOTFAIL: arptable checkpoint: > getsockopt(ARPT_SO_GET_ENTRIES) failed. table=filter (errno 22: Invalid > argument). > [ 124.647568][ T1161] netdevsim netdevsim8 netdevsim0: set [1, 0] type 2 > family 0 port 6081 - 0 > [ 124.647619][ T1161] netdevsim netdevsim8 netdevsim1: set [1, 0] type 2 > family 0 port 6081 - 0 > [ 124.647655][ T1161] netdevsim netdevsim8 netdevsim2: set [1, 0] type 2 > family 0 port 6081 - 0 > [ 124.647690][ T1161] netdevsim netdevsim8 netdevsim3: set [1, 0] type 2 > family 0 port 6081 - 0 > [ 124.806492][ T1161] netdevsim netdevsim8 netdevsim3 (unregistering): > unset [1, 0] type 2 family 0 port 6081 - 0 > [ 124.903314][ T1161] netdevsim netdevsim8 netdevsim2 (unregistering): > unset [1, 0] type 2 family 0 port 6081 - 0 > [ 124.980877][ T1161] netdevsim netdevsim8 netdevsim1 (unregistering): > unset [1, 0] type 2 family 0 port 6081 - 0 > [ 125.116872][ T1161] netdevsim netdevsim8 netdevsim0 (unregistering): > unset [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 > state > [ 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 > state > [ 126.095488][ T1161] bond0 (unregistering): (slave bond_slave_0): > Releasing backup interface > [ 126.110922][ T1161] bond0 (unregistering): (slave bond_slave_1): > Releasing 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_slave_0 > [ 126.233431][ T1161] batman_adv: batadv0: Removing interface: > batadv_slave_0 > [ 126.241512][ T1161] batman_adv: batadv0: Interface deactivated: > batadv_slave_1 > [ 126.241585][ T1161] batman_adv: batadv0: Removing interface: > batadv_slave_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 > removed > [ 126.682089][ T1161] team0 (unregistering): Port device team_slave_0 > removed > [ 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=) > AR='ar' > CC='gcc' > CGO_CFLAGS='-O2 -g' > CGO_CPPFLAGS='' > CGO_CXXFLAGS='-O2 -g' > CGO_ENABLED='1' > CGO_FFLAGS='-O2 -g' > CGO_LDFLAGS='-O2 -g' > CXX='g++' > GCCGO='gccgo' > GO111MODULE='auto' > GOAMD64='v1' > GOARCH='amd64' > GOAUTH='netrc' > GOBIN='' > GOCACHE='/syzkaller/.cache/go-build' > GOCACHEPROG='' > GODEBUG='' > GOENV='/syzkaller/.config/go/env' > GOEXE='' > GOEXPERIMENT='' > GOFIPS140='off' > GOFLAGS='' > GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 > -ffile-prefix-map=/tmp/go-build3081947690=/tmp/go-build > -gno-record-gcc-switches' > GOHOSTARCH='amd64' > GOHOSTOS='linux' > GOINSECURE='' > GOMOD='/syzkaller/jobs-2/linux/gopath/src/ > github.com/google/syzkaller/go.mod' > GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod' > GONOPROXY='' > GONOSUMDB='' > GOOS='linux' > GOPATH='/syzkaller/jobs-2/linux/gopath' > GOPRIVATE='' > GOPROXY='https://proxy.golang.org,direct' > GOROOT='/usr/local/go' > GOSUMDB='sum.golang.org' > GOTELEMETRY='local' > GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' > GOTMPDIR='' > GOTOOLCHAIN='auto' > GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' > GOVCS='' > GOVERSION='go1.26.0' > GOWORK='' > PKG_CONFIG='pkg-config' > > git status (err=) > 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/contributing.md#using-syz-env > go list -f '{{.Stale}}' -ldflags="-s -w -X > github.com/google/syzkaller/prog.GitRevision=853b104bb454141a5b0fc0e4218ec78e9f34ffb1 > -X github.com/google/syzkaller/prog.gitRevisionDate=20260918-062331" > ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X > github.com/google/syzkaller/prog.GitRevision=853b104bb454141a5b0fc0e4218ec78e9f34ffb1 > -X github.com/google/syzkaller/prog.gitRevisionDate=20260918-062331" > ./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/contributing.md#using-syz-env > bin/syz-sysgen > > touch .descriptions > GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X > github.com/google/syzkaller/prog.GitRevision=853b104bb454141a5b0fc0e4218ec78e9f34ffb1 > -X github.com/google/syzkaller/prog.gitRevisionDate=20260918-062331" -o > ./bin/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 -Wframe-larger-than=16384 -Wno-stringop-overflow > -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable > -Wno-unused-command-line-argument -static-pie -std=c++17 -I. > -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_386=1 \ > -DHOSTGOOS_linux=1 > -DGIT_REVISION=\"853b104bb454141a5b0fc0e4218ec78e9f34ffb1\" > /usr/bin/ld: /tmp/cctVKtvW.o: in function `Connection::Connect(char > const*, char const*)': > executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x145): > warning: Using 'gethostbyname' in statically linked applications requires > at runtime the shared libraries from the glibc version used for 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=9d4242cb1c54cdf7 > dashboard link: > https://syzkaller.appspot.com/bug?extid=9ca2c9f85bd8b5e46516 > 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=11123405580000 > >