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AJvYcCXBix8UMT141ssge/TX8pxYaAS9r8bm/rUfVRHQZJOr0rGIkbmARqnZOSYWUPUcHyT/vPo3Yd2k16pXxpo=@vger.kernel.org X-Gm-Message-State: AOJu0YwgsvmU+7eQk1iuKgf0GNXBALFgQc3dU5p9q4FzqY2m4zs5ObKl t1H0JP3+qFCD7GHXUuTjbnwfsimfC3tyXBu9gx8CW2IRRIHlZnn1xS7OLO2ua3FABDnzAC3Fv4X cAd6XeX2S/0yYpsfURAKJE8OGf5/ZYPyyJHR5PVAcLFh0VFn3TUaTqTvfcmM= X-Google-Smtp-Source: AGHT+IE7CMR/3LsTbX+j2iyxZeP8K6zT9g3ZdEWMD0F+sYGFr1bLdA+q6Tk3O5CGXY+LbXwzZPuYi7MtMdnPK3nPsZWw0Ky65wfO Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3287:b0:430:a3b0:8458 with SMTP id e9e14a558f8ab-431dc139f2cmr89582705ab.3.1761294663602; Fri, 24 Oct 2025 01:31:03 -0700 (PDT) Date: Fri, 24 Oct 2025 01:31:03 -0700 In-Reply-To: <20251024071153.WcJfz%dmantipov@yandex.ru> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68fb3947.a70a0220.3bf6c6.015f.GAE@google.com> Subject: Re: [syzbot] [ocfs2?] UBSAN: array-index-out-of-bounds in ocfs2_block_group_fill From: syzbot To: dmantipov@yandex.ru, 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: UBSAN: signed-integer-overflow in ip_idents_reserve =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D UBSAN: signed-integer-overflow in ./arch/x86/include/asm/atomic.h:165:11 -1399202697 + -1961381633 cannot be represented in type 'int' CPU: 1 PID: 27 Comm: kworker/u4:2 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Goo= gle 10/02/2025 Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker Call Trace: dump_stack+0xfd/0x16e lib/dump_stack.c:118 ubsan_epilogue+0xa/0x30 lib/ubsan.c:148 handle_overflow+0x192/0x1b0 lib/ubsan.c:180 arch_atomic_add_return arch/x86/include/asm/atomic.h:165 [inline] atomic_add_return include/asm-generic/atomic-instrumented.h:73 [inline] ip_idents_reserve+0x14a/0x170 net/ipv4/route.c:521 __ip_select_ident+0xe4/0x1c0 net/ipv4/route.c:538 iptunnel_xmit+0x468/0x850 net/ipv4/ip_tunnel_core.c:80 udp_tunnel_xmit_skb+0x1ba/0x290 net/ipv4/udp_tunnel_core.c:190 send4+0x5d4/0xaf0 drivers/net/wireguard/socket.c:85 wg_socket_send_skb_to_peer+0xcd/0x1c0 drivers/net/wireguard/socket.c:175 wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:40 [inlin= e] wg_packet_handshake_send_worker+0x16b/0x280 drivers/net/wireguard/send.c:5= 1 process_one_work+0x85e/0xff0 kernel/workqueue.c:2282 worker_thread+0xa9b/0x1430 kernel/workqueue.c:2428 kthread+0x386/0x410 kernel/kthread.c:328 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D Kernel panic - not syncing: UBSAN: panic_on_warn set ... CPU: 1 PID: 27 Comm: kworker/u4:2 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Goo= gle 10/02/2025 Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker Call Trace: dump_stack+0xfd/0x16e lib/dump_stack.c:118 panic+0x2f0/0x9c0 kernel/panic.c:308 check_panic_on_warn+0x95/0xe0 kernel/panic.c:228 handle_overflow+0x192/0x1b0 lib/ubsan.c:180 arch_atomic_add_return arch/x86/include/asm/atomic.h:165 [inline] atomic_add_return include/asm-generic/atomic-instrumented.h:73 [inline] ip_idents_reserve+0x14a/0x170 net/ipv4/route.c:521 __ip_select_ident+0xe4/0x1c0 net/ipv4/route.c:538 iptunnel_xmit+0x468/0x850 net/ipv4/ip_tunnel_core.c:80 udp_tunnel_xmit_skb+0x1ba/0x290 net/ipv4/udp_tunnel_core.c:190 send4+0x5d4/0xaf0 drivers/net/wireguard/socket.c:85 wg_socket_send_skb_to_peer+0xcd/0x1c0 drivers/net/wireguard/socket.c:175 wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:40 [inlin= e] wg_packet_handshake_send_worker+0x16b/0x280 drivers/net/wireguard/send.c:5= 1 process_one_work+0x85e/0xff0 kernel/workqueue.c:2282 worker_thread+0xa9b/0x1430 kernel/workqueue.c:2428 kthread+0x386/0x410 kernel/kthread.c:328 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Kernel Offset: disabled Rebooting in 86400 seconds.. Warning: Permanently added '10.128.1.176' (ED25519) to the list of known ho= sts. 2025/10/24 08:30:04 parsed 1 programs [ 48.013663][ T6013] cgroup: Unknown subsys name 'net' [ 48.170944][ T6013] cgroup: Unknown subsys name 'rlimit' [ 49.896812][ T6013] Adding 124996k swap on ./swap-file. Priority:0 exte= nts:1 across:124996k=20 [ 50.802412][ T6020] IPVS: ftp: loaded support on port[0] =3D 21 [ 50.981218][ T6026] IPVS: ftp: loaded support on port[0] =3D 21 [ 51.070963][ T6031] IPVS: ftp: loaded support on port[0] =3D 21 [ 51.212304][ T6037] IPVS: ftp: loaded support on port[0] =3D 21 [ 51.298209][ T6042] IPVS: ftp: loaded support on port[0] =3D 21 [ 51.396045][ T6047] IPVS: ftp: loaded support on port[0] =3D 21 [ 51.445463][ T6047] chnl_net:caif_netlink_parms(): no params data found [ 51.483834][ T6047] bridge0: port 1(bridge_slave_0) entered blocking sta= te [ 51.491355][ T6047] bridge0: port 1(bridge_slave_0) entered disabled sta= te [ 51.499426][ T6047] device bridge_slave_0 entered promiscuous mode [ 51.507218][ T6047] bridge0: port 2(bridge_slave_1) entered blocking sta= te [ 51.514361][ T6047] bridge0: port 2(bridge_slave_1) entered disabled sta= te [ 51.521916][ T6047] device bridge_slave_1 entered promiscuous mode [ 51.540701][ T6047] bond0: (slave bond_slave_0): Enslaving as an active = interface with an up link [ 51.551842][ T6047] bond0: (slave bond_slave_1): Enslaving as an active = interface with an up link [ 51.567750][ T6047] team0: Port device team_slave_0 added [ 51.574571][ T6047] team0: Port device team_slave_1 added [ 51.586442][ T6047] batman_adv: batadv0: Adding interface: batadv_slave_= 0 [ 51.593515][ T6047] 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. [ 51.619504][ T6047] batman_adv: batadv0: Not using interface batadv_slav= e_0 (retrying later): interface not active [ 51.631289][ T6047] batman_adv: batadv0: Adding interface: batadv_slave_= 1 [ 51.638275][ T6047] 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. [ 51.664460][ T6047] batman_adv: batadv0: Not using interface batadv_slav= e_1 (retrying later): interface not active [ 51.688501][ T6047] device hsr_slave_0 entered promiscuous mode [ 51.695170][ T6047] device hsr_slave_1 entered promiscuous mode [ 51.745737][ T6047] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 51.754100][ T6047] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 51.762823][ T6047] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 51.771249][ T6047] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 51.786410][ T6047] bridge0: port 2(bridge_slave_1) entered blocking sta= te [ 51.793485][ T6047] bridge0: port 2(bridge_slave_1) entered forwarding s= tate [ 51.800980][ T6047] bridge0: port 1(bridge_slave_0) entered blocking sta= te [ 51.808073][ T6047] bridge0: port 1(bridge_slave_0) entered forwarding s= tate [ 51.835190][ T6047] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.846473][ T178] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes r= eady [ 51.855767][ T178] bridge0: port 1(bridge_slave_0) entered disabled sta= te [ 51.863380][ T178] bridge0: port 2(bridge_slave_1) entered disabled sta= te [ 51.871161][ T178] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes r= eady [ 51.886989][ T6047] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.896287][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link = becomes ready [ 51.904678][ T27] bridge0: port 1(bridge_slave_0) entered blocking sta= te [ 51.911755][ T27] bridge0: port 1(bridge_slave_0) entered forwarding s= tate [ 51.928140][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link = becomes ready [ 51.936459][ T27] bridge0: port 2(bridge_slave_1) entered blocking sta= te [ 51.943545][ T27] bridge0: port 2(bridge_slave_1) entered forwarding s= tate [ 51.951785][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link be= comes ready [ 51.968045][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes r= eady [ 51.976221][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link be= comes ready [ 51.986689][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link bec= omes ready [ 51.997233][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link bec= omes ready [ 52.007405][ T6047] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes re= ady [ 52.064410][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes = ready [ 52.072318][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes = ready [ 52.083417][ T6047] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.097534][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link= becomes ready [ 52.116942][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link beco= mes ready [ 52.125424][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes r= eady [ 52.133639][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes r= eady [ 52.144186][ T6047] device veth0_vlan entered promiscuous mode [ 52.158944][ T6047] device veth1_vlan entered promiscuous mode [ 52.173076][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link become= s ready [ 52.181468][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link become= s ready [ 52.189866][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link b= ecomes ready [ 52.205170][ T6047] device veth0_macvtap entered promiscuous mode [ 52.213384][ T6047] device veth1_macvtap entered promiscuous mode [ 52.226086][ T6047] batman_adv: batadv0: Interface activated: batadv_sla= ve_0 [ 52.233924][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link= becomes ready [ 52.242748][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link become= s ready [ 52.257429][ T6047] batman_adv: batadv0: Interface activated: batadv_sla= ve_1 [ 52.264976][ T178] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link= becomes ready [ 52.275526][ T6047] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 52.284833][ T6047] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 52.293537][ T6047] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 52.302445][ T6047] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 52.318876][ T27] =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D [ 52.328195][ T27] UBSAN: signed-integer-overflow in ./arch/x86/include= /asm/atomic.h:165:11 [ 52.336760][ T27] -1399202697 + -1961381633 cannot be represented in t= ype 'int' [ 52.344421][ T27] CPU: 1 PID: 27 Comm: kworker/u4:2 Not tainted syzkal= ler #0 [ 52.351780][ T27] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 10/02/2025 [ 52.361832][ T27] Workqueue: wg-kex-wg0 wg_packet_handshake_send_worke= r [ 52.368761][ T27] Call Trace: [ 52.372032][ T27] dump_stack+0xfd/0x16e [ 52.376247][ T27] ubsan_epilogue+0xa/0x30 [ 52.380663][ T27] handle_overflow+0x192/0x1b0 [ 52.385400][ T27] ? prandom_u32+0x217/0x260 [ 52.390240][ T27] ip_idents_reserve+0x14a/0x170 [ 52.395164][ T27] __ip_select_ident+0xe4/0x1c0 [ 52.400000][ T27] iptunnel_xmit+0x468/0x850 [ 52.404585][ T27] udp_tunnel_xmit_skb+0x1ba/0x290 [ 52.409691][ T27] send4+0x5d4/0xaf0 [ 52.413573][ T27] wg_socket_send_skb_to_peer+0xcd/0x1c0 [ 52.419181][ T27] wg_packet_handshake_send_worker+0x16b/0x280 [ 52.425312][ T27] process_one_work+0x85e/0xff0 [ 52.430173][ T27] worker_thread+0xa9b/0x1430 [ 52.434940][ T27] ? rcu_lock_release+0x20/0x20 [ 52.439765][ T27] kthread+0x386/0x410 [ 52.443809][ T27] ? rcu_lock_release+0x20/0x20 [ 52.448664][ T27] ? kthread_blkcg+0xd0/0xd0 [ 52.453322][ T27] ret_from_fork+0x1f/0x30 [ 52.457765][ T27] =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D [ 52.467065][ T27] Kernel panic - not syncing: UBSAN: panic_on_warn set= ... [ 52.474261][ T27] CPU: 1 PID: 27 Comm: kworker/u4:2 Not tainted syzkal= ler #0 [ 52.481603][ T27] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 10/02/2025 [ 52.491670][ T27] Workqueue: wg-kex-wg0 wg_packet_handshake_send_worke= r [ 52.498580][ T27] Call Trace: [ 52.501854][ T27] dump_stack+0xfd/0x16e [ 52.506080][ T27] panic+0x2f0/0x9c0 [ 52.509954][ T27] check_panic_on_warn+0x95/0xe0 [ 52.514870][ T27] handle_overflow+0x192/0x1b0 [ 52.519633][ T27] ? prandom_u32+0x217/0x260 [ 52.524228][ T27] ip_idents_reserve+0x14a/0x170 [ 52.529235][ T27] __ip_select_ident+0xe4/0x1c0 [ 52.534066][ T27] iptunnel_xmit+0x468/0x850 [ 52.538633][ T27] udp_tunnel_xmit_skb+0x1ba/0x290 [ 52.543721][ T27] send4+0x5d4/0xaf0 [ 52.547604][ T27] wg_socket_send_skb_to_peer+0xcd/0x1c0 [ 52.553417][ T27] wg_packet_handshake_send_worker+0x16b/0x280 [ 52.559562][ T27] process_one_work+0x85e/0xff0 [ 52.564387][ T27] worker_thread+0xa9b/0x1430 [ 52.569136][ T27] ? rcu_lock_release+0x20/0x20 [ 52.574052][ T27] kthread+0x386/0x410 [ 52.578096][ T27] ? rcu_lock_release+0x20/0x20 [ 52.582913][ T27] ? kthread_blkcg+0xd0/0xd0 [ 52.587475][ T27] ret_from_fork+0x1f/0x30 [ 52.592191][ T27] Kernel Offset: disabled [ 52.596510][ T27] Rebooting in 86400 seconds.. 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-build1315598195=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'go1.24.4' GOWORK=3D'' PKG_CONFIG=3D'pkg-config' git status (err=3D) HEAD detached at b6605ba8b96 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=3Db6605ba8b96835063c5eb766c38d27fac98b84d4 -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20251013-102005" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3Db6605ba8b96835063c5eb766c38d27fac98b84d4 -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20251013-102005" ./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=3Db6605ba8b96835063c5eb766c38d27fac98b84d4 -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20251013-102005" -o ./bi= n/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -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= _amd64=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"b6605ba8b96835063c5eb766c38d27fac9= 8b84d4\" /usr/bin/ld: /tmp/cccF2O1E.o: in function `Connection::Connect(char const*,= char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x104): 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 Tested on: commit: d3d0b4e2 Linux 5.10.245 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linu= x.git linux-5.10.y kernel config: https://syzkaller.appspot.com/x/.config?x=3D6e4052b2d7feb09= 2 dashboard link: https://syzkaller.appspot.com/bug?extid=3D77026564530dbc29b= 854 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-= 1~exp1~20250708183702.136), Debian LLD 20.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D16982d2f9800= 00