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 8A7BD1AA1F4 for ; Tue, 15 Sep 2026 02:55:03 +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=1789440905; cv=none; b=oihSiHVjbZjwBN8PUenRoM18vVgq1Uw70703Sh1OSvYpaOS9WsXzRaWmME9Ao+zjqPbfjbcdJMPc8p7Ve1/r/HtkqMV0fbPgSo/hd7R6th2zk3SYDBbnKs6vmte20UlE1/QMhmZrT7NtnYfWDEVNjTRuvgFw8xAEXx3DjuXai3Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789440905; c=relaxed/simple; bh=XUPNUB6tayFHFgyDg/e7Yshf08dIVjJu0YjPkM4oDtU=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=UPYmzeJTrBnhWlE9u1WZmphouessvkKmoIesGutW0D2b1A8vKXmNTQ6T+9rJsv9Tv3G1PXnyjRmLApSI8ch48ZOJiDMTMyxZcHaY9VgS2BWi3vCm7AE5OXUo+g4EcCHkOe45PzQFgUyzOq/GqrdlVKdEJZMMdexOKuLXX2aCmK8= 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 006d021491bc7-6a17dafd042so5103990eaf.2 for ; Mon, 14 Sep 2026 19:55:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1789440902; x=1790045702; 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=40EQ2i/Xd+FyKjpdpa65OPJyM4ejmHIi76SNLxlvIms=; b=n4ipUm5yHxTzmnraOeuTMNZArlxitG1V+SHdgMVEeCqF549JKEMbyJSp+GCjtKMIFM P0rIuBWijueYfzuDxWRCJMYnvi94Pau0igWX1glNd4CW1l1yOn7TsnwC0tFn/JJ/Ltab 3MBhsN2XmJSino8pmccF+6+g2Ux1Rc1kIWNhj0Awvq28Qj3QUP0R2nvDKKdfFPEWAbRk l8cdy/vio7UR9snpxrHzXZ4rCMzEZp+QV9SOs0pQjTgr9uP64QevtDdZZ2yNYQH5zdsb jWWoDUhbJHqm8XjupOp12ZsAQyfFK78EBjmJfl2dltSCPMhJARE13zZ0wnDtN6M63aNf wVag== X-Forwarded-Encrypted: i=1; AKwUvBwDCGm8mODFku7V0SZn7cCxyjxI+4SUEQx/TdpnEQW0jTO4zhAqkPb1dEXfj2UY0Yzdnjr9K5XGNpA3Fxg=@vger.kernel.org X-Gm-Message-State: AFuF++lCJvZaErQ8o+dQBalQdgTEG/wwODGmX8ErAOmcixCyqRxbWgW/ DCV1boBMoWBWqGMXCVGG8w2kWRmIe3rEBof9GKdWKOe3yrSJ4rCbtr2UX603CKS9oTDp0V5//3t 4feJPSSdKVuyyaAbeDO62fTbd8dS+yfipwTuq89SF4FWi/FVkij5nQNe+CTM= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1609:b0:6c1:1734:2ec9 with SMTP id 006d021491bc7-6c541a46da1mr4636750eaf.28.1789440902425; Mon, 14 Sep 2026 19:55:02 -0700 (PDT) Date: Mon, 14 Sep 2026 19:55:02 -0700 In-Reply-To: <6aa8a1b2.bfa0a463.33fe0e.0882SMTPIN_ADDED_BROKEN@gmr-mx.google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6aa8b386.4c28b7d0.c1bba.002c.GAE@google.com> Subject: Re: [syzbot] [mmc?] WARNING: ODEBUG bug in vub300_disconnect From: syzbot To: jchuang26@m.fudan.edu.cn, 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: SYZFAIL: failed to recv rpc SYZFAIL: failed to recv rpc fd=3D3 want=3D4 recv=3D0 n=3D0 (errno 9: Bad file descriptor) execution of simple program fails: NOTFAIL: arptable checkpoint: getsockopt= (ARPT_SO_GET_ENTRIES) failed. table=3Dfilter (errno 22: Invalid argument). Warning: Permanently added '[localhost]:50937' (ED25519) to the list of kno= wn hosts. 2026/09/15 02:54:08 parsed 1 programs 2026/09/15 02:54:08 serving rpc on tcp://40509 [ 51.018830][ T5747] cgroup: Unknown subsys name 'net' [ 51.127646][ T5747] cgroup: Unknown subsys name 'cpuset' [ 51.131500][ T5747] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size =3D 127995904 bytes [ 52.520450][ T5747] Adding 124996k swap on ./swap-file. Priority:0 exte= nts:1 across:124996k=20 [ 55.451428][ T5757] 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. [ 55.490979][ T46] wlan0: Created IBSS using preconfigured BSSID 50:50:= 50:50:50:50 [ 55.490999][ T46] wlan0: Creating new IBSS network, BSSID 50:50:50:50:= 50:50 [ 55.492341][ T5757] ebtables: xtables 32bit compat interface no longer s= upported in namespaces and will be removed soon. [ 55.510392][ T5757] arp_tables: xtables 32bit compat interface no longer= supported in namespaces and will be removed soon. [ 55.641838][ T46] wlan1: Created IBSS using preconfigured BSSID 50:50:= 50:50:50:50 [ 55.641860][ T46] wlan1: Creating new IBSS network, BSSID 50:50:50:50:= 50:50 [ 56.829529][ T66] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > = 1 [ 56.830575][ T66] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > = 9 [ 56.831401][ T66] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > = 9 [ 56.832139][ T66] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > = 4 [ 56.832528][ T66] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > = 2 [ 56.932617][ T5802] ip_tables: xtables 32bit compat interface no longer = supported in namespaces and will be removed soon. [ 56.932896][ T5802] ip6_tables: xtables 32bit compat interface no longer= supported in namespaces and will be removed soon. [ 57.032911][ T5769] bridge0: port 1(bridge_slave_0) entered blocking sta= te [ 57.033003][ T5769] bridge0: port 1(bridge_slave_0) entered disabled sta= te [ 57.033119][ T5769] bridge_slave_0: entered allmulticast mode [ 57.034729][ T5769] bridge_slave_0: entered promiscuous mode [ 57.039314][ T5769] bridge0: port 2(bridge_slave_1) entered blocking sta= te [ 57.039361][ T5769] bridge0: port 2(bridge_slave_1) entered disabled sta= te [ 57.039450][ T5769] bridge_slave_1: entered allmulticast mode [ 57.040442][ T5769] bridge_slave_1: entered promiscuous mode [ 57.119251][ T5769] bond0: (slave bond_slave_0): Enslaving as an active = interface with an up link [ 57.137264][ T5769] bond0: (slave bond_slave_1): Enslaving as an active = interface with an up link [ 57.350160][ T5769] team0: Port device team_slave_0 added [ 57.362939][ T5769] team0: Port device team_slave_1 added [ 57.417359][ T5769] batman_adv: batadv0: Adding interface: batadv_slave_= 0 [ 57.417377][ T5769] 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. [ 57.417396][ T5769] batman_adv: batadv0: Not using interface batadv_slav= e_0 (retrying later): interface not active [ 57.430308][ T5769] batman_adv: batadv0: Adding interface: batadv_slave_= 1 [ 57.430327][ T5769] 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. [ 57.430354][ T5769] batman_adv: batadv0: Not using interface batadv_slav= e_1 (retrying later): interface not active [ 57.605499][ T5769] hsr_slave_0: entered promiscuous mode [ 57.606694][ T5769] hsr_slave_1: entered promiscuous mode [ 57.976208][ T5769] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 57.987128][ T5769] 8021q: adding VLAN 0 to HW filter on device netdevsi= m0 [ 57.988702][ T5769] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 57.992159][ T5769] 8021q: adding VLAN 0 to HW filter on device netdevsi= m1 [ 57.993845][ T5769] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 58.000578][ T5769] 8021q: adding VLAN 0 to HW filter on device netdevsi= m2 [ 58.004100][ T5769] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 58.012316][ T5769] 8021q: adding VLAN 0 to HW filter on device netdevsi= m3 [ 58.103684][ T5769] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.119294][ T5769] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.128805][ T37] bridge0: port 1(bridge_slave_0) entered blocking sta= te [ 58.128939][ T37] bridge0: port 1(bridge_slave_0) entered forwarding s= tate [ 58.131296][ T37] bridge0: port 2(bridge_slave_1) entered blocking sta= te [ 58.131377][ T37] bridge0: port 2(bridge_slave_1) entered forwarding s= tate [ 58.510343][ T5769] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.677549][ T5769] veth0_vlan: entered promiscuous mode [ 58.685197][ T5769] veth1_vlan: entered promiscuous mode [ 58.711173][ T5769] veth0_macvtap: entered promiscuous mode [ 58.715695][ T5769] veth1_macvtap: entered promiscuous mode [ 58.730261][ T5769] batman_adv: batadv0: Interface activated: batadv_sla= ve_0 [ 58.738604][ T5769] batman_adv: batadv0: Interface activated: batadv_sla= ve_1 [ 58.775395][ T13] netdevsim netdevsim5 netdevsim3: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 58.776413][ T13] netdevsim netdevsim5 netdevsim2: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 58.776445][ T13] netdevsim netdevsim5 netdevsim1: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 58.776473][ T13] netdevsim netdevsim5 netdevsim0: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 58.837077][ T5784] netdevsim netdevsim5 netdevsim3 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 SYZFAIL: failed to recv rpc fd=3D3 want=3D4 recv=3D0 n=3D0 (errno 9: Bad file descriptor) execution of simple program fails: NOTFAIL: arptable checkpoint: getsockopt= (ARPT_SO_GET_ENTRIES) failed. table=3Dfilter (errno 22: Invalid argument). [ 59.005630][ T5784] netdevsim netdevsim5 netdevsim2 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 59.117565][ T5784] netdevsim netdevsim5 netdevsim1 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 59.176795][ T5784] netdevsim netdevsim5 netdevsim0 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 60.017438][ T5784] bridge_slave_1: left allmulticast mode [ 60.017469][ T5784] bridge_slave_1: left promiscuous mode [ 60.018373][ T5784] bridge0: port 2(bridge_slave_1) entered disabled sta= te [ 60.023532][ T5784] bridge_slave_0: left allmulticast mode [ 60.023546][ T5784] bridge_slave_0: left promiscuous mode [ 60.023645][ T5784] bridge0: port 1(bridge_slave_0) entered disabled sta= te [ 60.151598][ T5784] bond0 (unregistering): (slave bond_slave_0): Releasi= ng backup interface [ 60.156955][ T5784] bond0 (unregistering): (slave bond_slave_1): Releasi= ng backup interface [ 60.158031][ T5784] bond0 (unregistering): Released all slaves [ 60.230072][ T5784] hsr_slave_0: left promiscuous mode [ 60.230565][ T5784] hsr_slave_1: left promiscuous mode [ 60.230997][ T5784] batman_adv: batadv0: Interface deactivated: batadv_s= lave_0 [ 60.231012][ T5784] batman_adv: batadv0: Removing interface: batadv_slav= e_0 [ 60.231870][ T5784] batman_adv: batadv0: Interface deactivated: batadv_s= lave_1 [ 60.231879][ T5784] batman_adv: batadv0: Removing interface: batadv_slav= e_1 [ 60.237922][ T5784] veth1_macvtap: left promiscuous mode [ 60.238016][ T5784] veth0_macvtap: left promiscuous mode [ 60.238146][ T5784] veth1_vlan: left promiscuous mode [ 60.238231][ T5784] veth0_vlan: left promiscuous mode [ 60.377488][ T5784] team0 (unregistering): Port device team_slave_1 remo= ved [ 60.388544][ T5784] team0 (unregistering): Port device team_slave_0 remo= ved [ 60.447040][ T5451] 8021q: adding VLAN 0 to HW filter on device eth2 [ 60.654287][ T5451] 8021q: adding VLAN 0 to HW filter on device eth4 [ 60.861929][ T5451] 8021q: adding VLAN 0 to HW filter on device eth3 [ 61.026589][ T5451] 8021q: adding VLAN 0 to HW filter on device eth5 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-build1170068323=3D/tmp/go-build -gno-record-gc= c-switches' GOHOSTARCH=3D'amd64' GOHOSTOS=3D'linux' GOINSECURE=3D'' GOMOD=3D'/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mo= d' GOMODCACHE=3D'/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY=3D'' GONOSUMDB=3D'' GOOS=3D'linux' GOPATH=3D'/syzkaller/jobs/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 1fe56c0af80 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=3D1fe56c0af80df10ab9f07819d9fa709dc9971ae1 -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20260910-094642" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3D1fe56c0af80df10ab9f07819d9fa709dc9971ae1 -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20260910-094642" ./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=3D1fe56c0af80df10ab9f07819d9fa709dc9971ae1 -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20260910-094642" -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\"1fe56c0af80df10ab9f07819d9fa709dc9= 971ae1\" /usr/bin/ld: /tmp/ccbm6IKO.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: 58785836 Merge tag 'nfsd-7.3-1' of git://git.kernel.or.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3D85bc5cc2fc7394d= 9 dashboard link: https://syzkaller.appspot.com/bug?extid=3Df4a0159ce6802a0a4= 774 compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Deb= ian) 2.44 userspace arch: i386 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D14978df95800= 00