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charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot tried to test the proposed patch but the build/boot failed: NGE): bond0: link becomes ready [ 67.659882][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes r= eady [ 67.668876][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes r= eady [ 67.678299][ T5618] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.696904][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link= becomes ready [ 67.706412][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link = becomes ready [ 67.713355][ T3025] bridge0: port 1(bridge_slave_0) entered blocking sta= te [ 67.719917][ T3025] bridge0: port 1(bridge_slave_0) entered forwarding s= tate [ 67.737997][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes= ready [ 67.746170][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link= becomes ready [ 67.753255][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link = becomes ready [ 67.761424][ T3025] bridge0: port 2(bridge_slave_1) entered blocking sta= te [ 67.767981][ T3025] bridge0: port 2(bridge_slave_1) entered forwarding s= tate [ 67.776501][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link be= comes ready [ 67.789834][ T5618] hsr0: Slave A (hsr_slave_0) is not up; please bring = it up to get a fully working HSR network [ 67.801676][ T5618] hsr0: Slave B (hsr_slave_1) is not up; please bring = it up to get a fully working HSR network [ 67.811910][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes r= eady [ 67.819404][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link be= comes ready [ 67.826626][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link bec= omes ready [ 67.833692][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link bec= omes ready [ 67.844888][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes re= ady [ 67.896486][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes = ready [ 67.902785][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes = ready [ 67.913137][ T5618] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.926115][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link= becomes ready [ 67.939812][ T5618] device veth0_vlan entered promiscuous mode [ 67.946170][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link beco= mes ready [ 67.953459][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes r= eady [ 67.960715][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes r= eady [ 67.970061][ T5618] device veth1_vlan entered promiscuous mode [ 67.976977][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link become= s ready [ 67.992070][ T5618] device veth0_macvtap entered promiscuous mode [ 67.998994][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link become= s ready [ 68.006989][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link b= ecomes ready [ 68.014090][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link become= s ready [ 68.022742][ T5618] device veth1_macvtap entered promiscuous mode [ 68.035409][ T5618] batman_adv: batadv0: Interface activated: batadv_sla= ve_0 [ 68.042220][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link= becomes ready [ 68.052325][ T5618] batman_adv: batadv0: Interface activated: batadv_sla= ve_1 [ 68.060379][ T3027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link= becomes ready [ 68.069464][ T5618] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 68.077570][ T5618] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 68.087228][ T5618] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 68.094986][ T5618] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 68.108021][ T3027] =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 [ 68.115942][ T3027] UBSAN: signed-integer-overflow in ./arch/x86/include= /asm/atomic.h:165:11 [ 68.123034][ T3027] 1282323313 + 2084770655 cannot be represented in typ= e 'int' [ 68.130978][ T3027] CPU: 0 PID: 3027 Comm: kworker/u2:5 Not tainted syzk= aller #0 [ 68.137549][ T3027] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), = BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 68.146666][ T3027] Workqueue: wg-kex-wg0 wg_packet_handshake_send_worke= r [ 68.152603][ T3027] Call Trace: [ 68.155328][ T3027] dump_stack+0xfd/0x16e [ 68.158916][ T3027] ubsan_epilogue+0xa/0x30 [ 68.162641][ T3027] handle_overflow+0x192/0x1b0 [ 68.166622][ T3027] ? prandom_u32+0x217/0x260 [ 68.170495][ T3027] ip_idents_reserve+0x14a/0x170 [ 68.174600][ T3027] __ip_select_ident+0xe4/0x1c0 [ 68.178693][ T3027] iptunnel_xmit+0x468/0x850 [ 68.182482][ T3027] udp_tunnel_xmit_skb+0x1ba/0x290 [ 68.186731][ T3027] send4+0x5d4/0xaf0 [ 68.189985][ T3027] wg_socket_send_skb_to_peer+0xcd/0x1c0 [ 68.194732][ T3027] wg_packet_handshake_send_worker+0x16b/0x280 [ 68.200781][ T3027] process_one_work+0x85e/0xff0 [ 68.204929][ T3027] worker_thread+0xa9b/0x1430 [ 68.208868][ T3027] ? rcu_lock_release+0x20/0x20 [ 68.212846][ T3027] kthread+0x386/0x410 [ 68.216206][ T3027] ? rcu_lock_release+0x20/0x20 [ 68.220336][ T3027] ? kthread_blkcg+0xd0/0xd0 [ 68.224057][ T3027] ret_from_fork+0x1f/0x30 [ 68.227707][ T3027] =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 [ 68.235718][ T3027] Kernel panic - not syncing: UBSAN: panic_on_warn set= ... [ 68.242148][ T3027] CPU: 0 PID: 3027 Comm: kworker/u2:5 Not tainted syzk= aller #0 [ 68.248871][ T3027] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), = BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 68.258217][ T3027] Workqueue: wg-kex-wg0 wg_packet_handshake_send_worke= r [ 68.264036][ T3027] Call Trace: [ 68.266727][ T3027] dump_stack+0xfd/0x16e [ 68.270510][ T3027] panic+0x2f0/0x9c0 [ 68.273874][ T3027] check_panic_on_warn+0x95/0xe0 [ 68.277943][ T3027] handle_overflow+0x192/0x1b0 [ 68.281940][ T3027] ? prandom_u32+0x217/0x260 [ 68.285754][ T3027] ip_idents_reserve+0x14a/0x170 [ 68.289821][ T3027] __ip_select_ident+0xe4/0x1c0 [ 68.293511][ T3027] iptunnel_xmit+0x468/0x850 [ 68.297020][ T3027] udp_tunnel_xmit_skb+0x1ba/0x290 [ 68.301331][ T3027] send4+0x5d4/0xaf0 [ 68.304697][ T3027] wg_socket_send_skb_to_peer+0xcd/0x1c0 [ 68.309587][ T3027] wg_packet_handshake_send_worker+0x16b/0x280 [ 68.314737][ T3027] process_one_work+0x85e/0xff0 [ 68.318718][ T3027] worker_thread+0xa9b/0x1430 [ 68.322372][ T3027] ? rcu_lock_release+0x20/0x20 [ 68.326207][ T3027] kthread+0x386/0x410 [ 68.329499][ T3027] ? rcu_lock_release+0x20/0x20 [ 68.333489][ T3027] ? kthread_blkcg+0xd0/0xd0 [ 68.337061][ T3027] ret_from_fork+0x1f/0x30 [ 68.340939][ T3027] Kernel Offset: disabled [ 68.344406][ T3027] Rebooting in 86400 seconds.. VM DIAGNOSIS: 07:07:22 Registers: info registers vcpu 0 CPU#0 RAX=3D1ffffffff2c32060 RBX=3D00000000000003fd RCX=3D0000000000000000 RDX=3D= 00000000000003fd RSI=3D0000000000000000 RDI=3D0000000000000020 RBP=3D0000000000000020 RSP=3D= ffffc90000a1f488 R8 =3Ddffffc0000000000 R9 =3Dfffff52000143e9e R10=3Dfffff52000143e9e R11=3D= ffffffff83f95e70 R12=3Ddffffc0000000000 R13=3D1ffffffff2ad4c63 R14=3Dffffffff961903c0 R15=3D= 0000000000000000 RIP=3Dffffffff83f95ee3 RFL=3D00000002 [-------] CPL=3D0 II=3D0 A20=3D1 SMM= =3D0 HLT=3D0 ES =3D0000 0000000000000000 ffffffff 00c00000 CS =3D0010 0000000000000000 ffffffff 00a09b00 DPL=3D0 CS64 [-RA] SS =3D0018 0000000000000000 ffffffff 00c09300 DPL=3D0 DS [-WA] DS =3D0000 0000000000000000 ffffffff 00c00000 FS =3D0000 0000000000000000 ffffffff 00c00000 GS =3D0000 ffff888020600000 ffffffff 00c00000 LDT=3D0000 0000000000000000 ffffffff 00c00000 TR =3D0040 fffffe0000003000 00004087 00008b00 DPL=3D0 TSS64-busy GDT=3D fffffe0000001000 0000007f IDT=3D fffffe0000000000 00000fff CR0=3D80050033 CR2=3D00007fc76d01b6b0 CR3=3D000000003bbb8000 CR4=3D00350ef0 DR0=3D0000000000000000 DR1=3D0000000000000000 DR2=3D0000000000000000 DR3=3D= 0000000000000000=20 DR6=3D00000000fffe0ff0 DR7=3D0000000000000400 EFER=3D0000000000000d01 FCW=3D037f FSW=3D0000 [ST=3D0] FTW=3D00 MXCSR=3D00001f80 FPR0=3D0000000000000000 0000 FPR1=3D0000000000000000 0000 FPR2=3D0000000000000000 0000 FPR3=3D0000000000000000 0000 FPR4=3D0000000000000000 0000 FPR5=3D0000000000000000 0000 FPR6=3D0000000000000000 0000 FPR7=3D0000000000000000 0000 Opmask00=3D0000000040410888 Opmask01=3D0000000000000fff Opmask02=3D00000000= ffffffef Opmask03=3D0000000000000000 Opmask04=3D0000000000000000 Opmask05=3D0000000000000000 Opmask06=3D00000000= 00000000 Opmask07=3D0000000000000000 ZMM00=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 4fbe43ac9f8dee1f 13ce8330a1ae1a97 ZMM01=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 72ec250c5763c9fd 529fd701c037efee ZMM02=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 c1f3a78accefb53d 505a38d2fce3eab4 ZMM03=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 5c4df8ddb4770ea3 dbe5344bbf7daa56 ZMM04=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 00000000ffffffff 00000000000000b4 ZMM05=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000034 ZMM06=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 a077df95440950b9 0c00cc7265aa82be ZMM07=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 d81ebb973342967d 0000000000000000 ZMM08=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 8efeaa65cdb9a13e d150fd9eae3be657 ZMM09=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 ddc10fdc00000000 e4660e17edb0aedd ZMM10=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 a0e979bdc8075c8b a5c0b2d4b44f4d4b ZMM11=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 345505ce4c1a3a43 40c8945a3b014bfb ZMM12=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM13=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM14=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 a54ff53a3c6ef372 bb67ae856a09e667 ZMM15=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 5be0cd191f83d9ab 9b05688c510e527f ZMM16=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM17=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 2525252525252525 2525252525252525 2525252525252525 2525252525252525 ZMM18=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 00306e6170737265 0030657267367069 00306c6e74367069 00306974765f3670 ZMM19=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 6900306974765f70 6900306c6e757400 3074697300326777 0031677700306777 ZMM20=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM21=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM22=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM23=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM24=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM25=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM26=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM27=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM28=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM29=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM30=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM31=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 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-build2361257849=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'go1.24.4' GOWORK=3D'' PKG_CONFIG=3D'pkg-config' git status (err=3D) HEAD detached at c0460fcde70 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=3Dc0460fcde7051a8d07612ec2a17718d3c3019bb0 -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20251022-142038" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3Dc0460fcde7051a8d07612ec2a17718d3c3019bb0 -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20251022-142038" ./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=3Dc0460fcde7051a8d07612ec2a17718d3c3019bb0 -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20251022-142038" -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\"c0460fcde7051a8d07612ec2a17718d3c3= 019bb0\" /usr/bin/ld: /tmp/ccCE9RT8.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 Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=3D102fc32f980000 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=3D7686d7adbdbe480 dashboard link: https://syzkaller.appspot.com/bug?extid=3Dfd8af97c7227fe605= d95 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=3D123a99325800= 00