From: syzbot <syzbot+a079f084653164a652d1@syzkaller.appspotmail.com>
To: jchuang26@m.fudan.edu.cn, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [batman?] WARNING in batadv_iv_ogm_process_per_outif
Date: Mon, 14 Sep 2026 00:39:02 -0700 [thread overview]
Message-ID: <6aa7a496.4c28b7d0.c1bba.0015.GAE@google.com> (raw)
In-Reply-To: <6aa79dcd.717c4d5f.2255e.48efSMTPIN_ADDED_BROKEN@gmr-mx.google.com>
Hello,
syzbot tried to test the proposed patch but the build/boot failed:
lost connection to test machine
[ 104.852219][ T1219] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.93' (ED25519) to the list of known hosts.
2026/09/14 07:37:15 parsed 1 programs
2026/09/14 07:37:15 serving rpc on tcp://34817
[ 113.874515][ T5628] cgroup: Unknown subsys name 'net'
[ 113.950099][ T5628] cgroup: Unknown subsys name 'cpuset'
[ 113.953008][ T5628] cgroup: Unknown subsys name 'rlimit'
Setting up swapspace version 1, size = 127995904 bytes
[ 115.529192][ T5628] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 119.248082][ T5641] 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.
[ 119.264382][ T5641] ebtables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon.
[ 119.266018][ T5641] arp_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon.
[ 119.270470][ T5641] ip_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon.
[ 119.271534][ T5641] ip6_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon.
[ 121.334097][ T5666] bridge0: port 1(bridge_slave_0) entered blocking state
[ 121.338021][ T5666] bridge0: port 1(bridge_slave_0) entered disabled state
[ 121.338232][ T5666] bridge_slave_0: entered allmulticast mode
[ 121.341025][ T5666] bridge_slave_0: entered promiscuous mode
[ 121.353220][ T5666] bridge0: port 2(bridge_slave_1) entered blocking state
[ 121.353501][ T5666] bridge0: port 2(bridge_slave_1) entered disabled state
[ 121.353686][ T5666] bridge_slave_1: entered allmulticast mode
[ 121.355722][ T5666] bridge_slave_1: entered promiscuous mode
[ 121.434681][ T5666] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 121.458570][ T5666] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 121.515626][ T5666] team0: Port device team_slave_0 added
[ 121.531678][ T5666] team0: Port device team_slave_1 added
[ 121.573221][ T5666] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 121.573235][ T5666] 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.
[ 121.573249][ T5666] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 121.581147][ T5666] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 121.581169][ T5666] 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.
[ 121.581195][ T5666] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 121.732585][ T5666] hsr_slave_0: entered promiscuous mode
[ 121.733348][ T5666] hsr_slave_1: entered promiscuous mode
[ 121.937442][ T5666] netdevsim netdevsim1 netdevsim0: renamed from eth0
[ 121.945618][ T5666] 8021q: adding VLAN 0 to HW filter on device netdevsim0
[ 121.948185][ T5666] netdevsim netdevsim1 netdevsim1: renamed from eth1
[ 121.963090][ T5666] 8021q: adding VLAN 0 to HW filter on device netdevsim1
[ 121.990464][ T5666] netdevsim netdevsim1 netdevsim2: renamed from eth2
[ 121.992839][ T5666] 8021q: adding VLAN 0 to HW filter on device netdevsim2
[ 121.995183][ T5666] netdevsim netdevsim1 netdevsim3: renamed from eth3
[ 122.012233][ T5666] 8021q: adding VLAN 0 to HW filter on device netdevsim3
[ 122.065151][ T5666] bridge0: port 2(bridge_slave_1) entered blocking state
[ 122.065402][ T5666] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 122.066001][ T5666] bridge0: port 1(bridge_slave_0) entered blocking state
[ 122.066607][ T5666] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 122.130740][ T37] bridge0: port 1(bridge_slave_0) entered disabled state
[ 122.131846][ T37] bridge0: port 2(bridge_slave_1) entered disabled state
[ 122.169256][ T5666] 8021q: adding VLAN 0 to HW filter on device bond0
[ 122.190400][ T5666] 8021q: adding VLAN 0 to HW filter on device team0
[ 122.214365][ T37] bridge0: port 1(bridge_slave_0) entered blocking state
[ 122.214447][ T37] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 122.233900][ T37] bridge0: port 2(bridge_slave_1) entered blocking state
[ 122.234002][ T37] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 122.329395][ T5666] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 122.380927][ T5666] veth0_vlan: entered promiscuous mode
[ 122.404874][ T5666] veth1_vlan: entered promiscuous mode
[ 122.444443][ T5666] veth0_macvtap: entered promiscuous mode
[ 122.451686][ T5666] veth1_macvtap: entered promiscuous mode
[ 122.475228][ T5666] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 122.496834][ T5666] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 122.540927][ T61] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 122.563724][ T59] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 122.565323][ T37] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 122.567465][ T37] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 122.773657][ T37] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 122.863583][ T37] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 122.928890][ T37] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 124.498043][ T37] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 124.548496][ T59] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 124.548523][ T59] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 124.632676][ T59] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 124.632699][ T59] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 124.765000][ T4931] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 124.780274][ T4931] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 124.782685][ T4931] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 124.783771][ T4931] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 124.784622][ T4931] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
execution of simple program fails: NOTFAIL: arptable checkpoint: getsockopt(ARPT_SO_GET_ENTRIES) failed. table=filter (errno 22: Invalid argument).
[ 126.157372][ T37] bridge_slave_1: left allmulticast mode
[ 126.157419][ T37] bridge_slave_1: left promiscuous mode
[ 126.160359][ T37] bridge0: port 2(bridge_slave_1) entered disabled state
[ 126.185651][ T37] bridge_slave_0: left allmulticast mode
[ 126.185682][ T37] bridge_slave_0: left promiscuous mode
[ 126.186197][ T37] bridge0: port 1(bridge_slave_0) entered disabled state
[ 126.473726][ T37] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 126.490305][ T37] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 126.492294][ T37] bond0 (unregistering): Released all slaves
[ 126.674816][ T37] hsr_slave_0: left promiscuous mode
[ 126.688746][ T37] hsr_slave_1: left promiscuous mode
[ 126.690592][ T37] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 126.690805][ T37] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 126.694661][ T37] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 126.694691][ T37] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 126.771268][ T37] veth1_macvtap: left promiscuous mode
[ 126.771330][ T37] veth0_macvtap: left promiscuous mode
[ 126.771660][ T37] veth1_vlan: left promiscuous mode
[ 126.771755][ T37] veth0_vlan: left promiscuous mode
[ 127.121665][ T37] team0 (unregistering): Port device team_slave_1 removed
[ 127.162343][ T37] team0 (unregistering): Port device team_slave_0 removed
[ 127.304149][ T5277] 8021q: adding VLAN 0 to HW filter on device eth1
[ 127.777376][ T5277] 8021q: adding VLAN 0 to HW filter on device eth2
[ 128.517336][ T5277] 8021q: adding VLAN 0 to HW filter on device eth3
[ 129.332540][ T5277] 8021q: adding VLAN 0 to HW filter on device eth4
[ 140.702987][ T1310] ieee802154 phy0 wpan0: encryption failed: -22
[ 140.703065][ T1310] ieee802154 phy1 wpan1: encryption failed: -22
syzkaller build log:
go env (err=<nil>)
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-build4012198568=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs/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=<nil>)
HEAD detached at b6a5eeb7114
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=b6a5eeb7114b1887514b0d74ca39167dfbfa4603 -X github.com/google/syzkaller/prog.gitRevisionDate=20260911-102446" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=b6a5eeb7114b1887514b0d74ca39167dfbfa4603 -X github.com/google/syzkaller/prog.gitRevisionDate=20260911-102446" ./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=b6a5eeb7114b1887514b0d74ca39167dfbfa4603 -X github.com/google/syzkaller/prog.gitRevisionDate=20260911-102446" -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=\"b6a5eeb7114b1887514b0d74ca39167dfbfa4603\"
/usr/bin/ld: /tmp/cc6qZiym.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: 704340f1 Merge tag 'x86_urgent_for_7.3-rc4' of git://g..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=5e4e3a0e188a497e
dashboard link: https://syzkaller.appspot.com/bug?extid=a079f084653164a652d1
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=15ec9c8e580000
next parent reply other threads:[~2026-09-14 7:39 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <6aa79dcd.717c4d5f.2255e.48efSMTPIN_ADDED_BROKEN@gmr-mx.google.com>
2026-09-14 7:39 ` syzbot [this message]
[not found] <6aa7dcd7.caa6ce30.140852.4da4SMTPIN_ADDED_BROKEN@gmr-mx.google.com>
2026-09-14 16:18 ` syzbot
[not found] <6aa79ab6.0d4cb543.1c67cf.abecSMTPIN_ADDED_BROKEN@gmr-mx.google.com>
2026-09-14 7:30 ` syzbot
[not found] <20260913032113.14940-1-kartikey406@gmail.com>
2026-09-13 4:24 ` syzbot
[not found] <20260913032055.14922-1-kartikey406@gmail.com>
2026-09-13 4:11 ` syzbot
2026-09-13 2:47 syzbot
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