From: syzbot <syzbot+a079f084653164a652d1@syzkaller.appspotmail.com>
To: kartikey406@gmail.com, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [batman?] WARNING in batadv_iv_ogm_process_per_outif
Date: Sat, 12 Sep 2026 21:11:01 -0700 [thread overview]
Message-ID: <6aa62255.f670cee1.72fc4.000d.GAE@google.com> (raw)
In-Reply-To: <20260913032055.14922-1-kartikey406@gmail.com>
Hello,
syzbot tried to test the proposed patch but the build/boot failed:
SYZFAIL: failed to recv rpc
SYZFAIL: failed to recv rpc
fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor)
execution of simple program fails: NOTFAIL: arptable checkpoint: getsockopt(ARPT_SO_GET_ENTRIES) failed. table=filter (errno 22: Invalid argument).
Warning: Permanently added '10.128.0.185' (ED25519) to the list of known hosts.
2026/09/13 04:09:14 parsed 1 programs
2026/09/13 04:09:14 serving rpc on tcp://42357
[ 91.749254][ T5628] cgroup: Unknown subsys name 'net'
[ 91.869767][ T5628] cgroup: Unknown subsys name 'cpuset'
[ 91.873399][ T5628] cgroup: Unknown subsys name 'rlimit'
Setting up swapspace version 1, size = 127995904 bytes
[ 92.178249][ T191] cfg80211: failed to load regulatory.db
[ 93.607422][ T5628] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 96.947156][ T5645] bridge0: port 1(bridge_slave_0) entered blocking state
[ 96.948216][ T5645] bridge0: port 1(bridge_slave_0) entered disabled state
[ 96.948595][ T5645] bridge_slave_0: entered allmulticast mode
[ 96.950185][ T5645] bridge_slave_0: entered promiscuous mode
[ 96.968422][ T5645] bridge0: port 2(bridge_slave_1) entered blocking state
[ 96.968718][ T5645] bridge0: port 2(bridge_slave_1) entered disabled state
[ 96.969269][ T5645] bridge_slave_1: entered allmulticast mode
[ 96.975443][ T5645] bridge_slave_1: entered promiscuous mode
[ 97.026823][ T5645] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 97.029726][ T5645] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 97.067622][ T5645] team0: Port device team_slave_0 added
[ 97.069828][ T5645] team0: Port device team_slave_1 added
[ 97.102251][ T5645] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 97.102266][ T5645] 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.
[ 97.102285][ T5645] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 97.104507][ T5645] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 97.104523][ T5645] 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.
[ 97.104555][ T5645] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 97.215470][ T5645] hsr_slave_0: entered promiscuous mode
[ 97.216673][ T5645] hsr_slave_1: entered promiscuous mode
[ 97.398344][ T5645] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 97.412041][ T5645] 8021q: adding VLAN 0 to HW filter on device netdevsim0
[ 97.414367][ T5645] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 97.432631][ T5645] 8021q: adding VLAN 0 to HW filter on device netdevsim1
[ 97.433618][ T5645] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 97.450817][ T5645] 8021q: adding VLAN 0 to HW filter on device netdevsim2
[ 97.451832][ T5645] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 97.463020][ T5645] 8021q: adding VLAN 0 to HW filter on device netdevsim3
[ 97.509246][ T5645] bridge0: port 2(bridge_slave_1) entered blocking state
[ 97.509351][ T5645] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 97.510344][ T5645] bridge0: port 1(bridge_slave_0) entered blocking state
[ 97.510441][ T5645] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 97.601541][ T5645] 8021q: adding VLAN 0 to HW filter on device bond0
[ 97.622801][ T13] bridge0: port 1(bridge_slave_0) entered disabled state
[ 97.624447][ T13] bridge0: port 2(bridge_slave_1) entered disabled state
[ 97.650519][ T5645] 8021q: adding VLAN 0 to HW filter on device team0
[ 97.665658][ T178] bridge0: port 1(bridge_slave_0) entered blocking state
[ 97.666209][ T178] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 97.672175][ T13] bridge0: port 2(bridge_slave_1) entered blocking state
[ 97.672269][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 97.779043][ T5645] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 97.837288][ T5645] veth0_vlan: entered promiscuous mode
[ 97.852320][ T5645] veth1_vlan: entered promiscuous mode
[ 97.887743][ T5645] veth0_macvtap: entered promiscuous mode
[ 97.892494][ T5645] veth1_macvtap: entered promiscuous mode
[ 97.924641][ T5645] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 97.947413][ T5645] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 97.966227][ T178] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 97.966277][ T178] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 97.966313][ T178] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 97.966349][ T178] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 98.071576][ T5645] 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.
[ 98.090891][ T5645] ebtables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon.
[ 98.092461][ T5645] arp_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon.
[ 98.093655][ T5645] ip_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon.
[ 98.100047][ T5645] ip6_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon.
[ 98.289039][ T13] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 98.359069][ T13] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 98.438317][ T13] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 98.520399][ T13] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 100.678728][ T13] bridge_slave_1: left allmulticast mode
[ 100.678774][ T13] bridge_slave_1: left promiscuous mode
[ 100.679609][ T13] bridge0: port 2(bridge_slave_1) entered disabled state
[ 100.709850][ T13] bridge_slave_0: left allmulticast mode
[ 100.709884][ T13] bridge_slave_0: left promiscuous mode
[ 100.711333][ T13] bridge0: port 1(bridge_slave_0) entered disabled state
[ 100.933400][ T13] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 100.945521][ T13] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 100.947693][ T13] bond0 (unregistering): Released all slaves
[ 101.087990][ T13] hsr_slave_0: left promiscuous mode
[ 101.088880][ T13] hsr_slave_1: left promiscuous mode
[ 101.089964][ T13] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 101.089999][ T13] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 101.092194][ T13] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 101.092217][ T13] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 101.144588][ T13] veth1_macvtap: left promiscuous mode
[ 101.144658][ T13] veth0_macvtap: left promiscuous mode
[ 101.157659][ T13] veth1_vlan: left promiscuous mode
[ 101.157855][ T13] veth0_vlan: left promiscuous mode
[ 101.519019][ T13] team0 (unregistering): Port device team_slave_1 removed
[ 101.543965][ T13] team0 (unregistering): Port device team_slave_0 removed
[ 101.732210][ T5281] 8021q: adding VLAN 0 to HW filter on device eth1
[ 101.927935][ T5733] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 101.929869][ T5733] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 101.930662][ T5733] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 101.933694][ T5733] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 101.938741][ T5733] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 103.054501][ T5281] 8021q: adding VLAN 0 to HW filter on device eth2
[ 103.182145][ T50] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 103.182168][ T50] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 103.334883][ T50] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 103.334908][ T50] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 104.157903][ T5281] 8021q: adding VLAN 0 to HW filter on device eth3
[ 104.824327][ T5281] 8021q: adding VLAN 0 to HW filter on device eth4
SYZFAIL: failed to recv rpc
fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor)
execution of simple program fails: NOTFAIL: arptable checkpoint: getsockopt(ARPT_SO_GET_ENTRIES) failed. table=filter (errno 22: Invalid argument).
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-build3774646112=/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/ccFcuwRo.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: 2f0c1cf7 Merge tag 's390-7.3-3' of git://git.kernel.or..
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=175d55f9580000
next parent reply other threads:[~2026-09-13 4:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20260913032055.14922-1-kartikey406@gmail.com>
2026-09-13 4:11 ` syzbot [this message]
[not found] <20260913032113.14940-1-kartikey406@gmail.com>
2026-09-13 4:24 ` syzbot
2026-09-13 2:47 syzbot
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