UBSAN: signed-integer-overflow in ip_idents_reserve ================================================================================ UBSAN: signed-integer-overflow in ./arch/x86/include/asm/atomic.h:165:11 1496745227 + 1827093953 cannot be represented in type 'int' CPU: 0 PID: 3020 Comm: kworker/u2:4 Not tainted syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 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 [inline] wg_packet_handshake_send_worker+0x16b/0x280 drivers/net/wireguard/send.c:51 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 panic - not syncing: UBSAN: panic_on_warn set ... CPU: 0 PID: 3020 Comm: kworker/u2:4 Not tainted syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 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 [inline] wg_packet_handshake_send_worker+0x16b/0x280 drivers/net/wireguard/send.c:51 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 '[localhost]:23597' (ED25519) to the list of known hosts. 2025/10/24 07:21:34 parsed 1 programs [ 62.533244][ T5537] cgroup: Unknown subsys name 'net' [ 62.594897][ T5537] cgroup: Unknown subsys name 'rlimit' [ 64.496797][ T5537] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 65.454844][ T5545] IPVS: ftp: loaded support on port[0] = 21 [ 65.802599][ T5564] IPVS: ftp: loaded support on port[0] = 21 [ 66.046275][ T5582] IPVS: ftp: loaded support on port[0] = 21 [ 66.268667][ T5601] IPVS: ftp: loaded support on port[0] = 21 [ 66.326417][ T5606] IPVS: ftp: loaded support on port[0] = 21 [ 66.601380][ T5606] syz-executor (5606) used greatest stack depth: 23968 bytes left [ 66.630759][ T5626] IPVS: ftp: loaded support on port[0] = 21 [ 67.039812][ T5650] IPVS: ftp: loaded support on port[0] = 21 [ 67.266108][ T5669] IPVS: ftp: loaded support on port[0] = 21 [ 67.518852][ T5687] IPVS: ftp: loaded support on port[0] = 21 [ 67.578402][ T5691] IPVS: ftp: loaded support on port[0] = 21 [ 67.799104][ T5709] IPVS: ftp: loaded support on port[0] = 21 [ 67.854768][ T5709] chnl_net:caif_netlink_parms(): no params data found [ 67.885656][ T5709] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.891779][ T5709] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.898333][ T5709] device bridge_slave_0 entered promiscuous mode [ 67.907337][ T5709] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.913422][ T5709] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.920280][ T5709] device bridge_slave_1 entered promiscuous mode [ 67.943595][ T5709] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.959482][ T5709] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.977005][ T5709] team0: Port device team_slave_0 added [ 67.983097][ T5709] team0: Port device team_slave_1 added [ 67.994745][ T5709] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.000558][ T5709] 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 1560 would solve the problem. [ 68.023644][ T5709] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.034824][ T5709] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.040589][ T5709] 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 1560 would solve the problem. [ 68.064510][ T5709] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.089315][ T5709] device hsr_slave_0 entered promiscuous mode [ 68.095559][ T5709] device hsr_slave_1 entered promiscuous mode [ 68.151623][ T5709] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.159445][ T5709] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.168458][ T5709] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.176266][ T5709] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.191534][ T5709] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.197266][ T5709] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.203351][ T5709] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.209097][ T5709] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.240298][ T5709] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.252314][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.259280][ T3052] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.266321][ T3052] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.273111][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.283113][ T5709] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.292693][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.299864][ T3052] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.306738][ T3052] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.323464][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.330362][ T3052] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.336215][ T3052] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.345510][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.360723][ T5709] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 68.370569][ T5709] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.383585][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.390265][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.397595][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.404843][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.419136][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.475464][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.482714][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.492279][ T5709] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.504284][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.518322][ T5709] device veth0_vlan entered promiscuous mode [ 68.524533][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.532452][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.538937][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.548991][ T5709] device veth1_vlan entered promiscuous mode [ 68.561923][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.577076][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.584768][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.593467][ T5709] device veth0_macvtap entered promiscuous mode [ 68.600185][ T5709] device veth1_macvtap entered promiscuous mode [ 68.612225][ T5709] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.618206][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.627196][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.636160][ T5709] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.642694][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.650882][ T5709] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.658395][ T5709] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.666616][ T5709] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.674870][ T5709] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.687772][ T3020] ================================================================================ [ 68.695596][ T3020] UBSAN: signed-integer-overflow in ./arch/x86/include/asm/atomic.h:165:11 [ 68.703028][ T3020] 1496745227 + 1827093953 cannot be represented in type 'int' [ 68.710244][ T3020] CPU: 0 PID: 3020 Comm: kworker/u2:4 Not tainted syzkaller #0 [ 68.716579][ T3020] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 68.725798][ T3020] Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker [ 68.731523][ T3020] Call Trace: [ 68.734230][ T3020] dump_stack+0xfd/0x16e [ 68.737665][ T3020] ubsan_epilogue+0xa/0x30 [ 68.741273][ T3020] handle_overflow+0x192/0x1b0 [ 68.745235][ T3020] ? prandom_u32+0x217/0x260 [ 68.748968][ T3020] ip_idents_reserve+0x14a/0x170 [ 68.753042][ T3020] __ip_select_ident+0xe4/0x1c0 [ 68.757100][ T3020] iptunnel_xmit+0x468/0x850 [ 68.760939][ T3020] udp_tunnel_xmit_skb+0x1ba/0x290 [ 68.765181][ T3020] send4+0x5d4/0xaf0 [ 68.768350][ T3020] wg_socket_send_skb_to_peer+0xcd/0x1c0 [ 68.772983][ T3020] wg_packet_handshake_send_worker+0x16b/0x280 [ 68.778059][ T3020] process_one_work+0x85e/0xff0 [ 68.782159][ T3020] worker_thread+0xa9b/0x1430 [ 68.786018][ T3020] ? rcu_lock_release+0x20/0x20 [ 68.790096][ T3020] kthread+0x386/0x410 [ 68.793572][ T3020] ? rcu_lock_release+0x20/0x20 [ 68.797547][ T3020] ? kthread_blkcg+0xd0/0xd0 [ 68.801233][ T3020] ret_from_fork+0x1f/0x30 [ 68.805017][ T3020] ================================================================================ [ 68.812880][ T3020] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 68.818697][ T3020] CPU: 0 PID: 3020 Comm: kworker/u2:4 Not tainted syzkaller #0 [ 68.824803][ T3020] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 68.833531][ T3020] Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker [ 68.839263][ T3020] Call Trace: [ 68.841987][ T3020] dump_stack+0xfd/0x16e [ 68.845483][ T3020] panic+0x2f0/0x9c0 [ 68.848723][ T3020] check_panic_on_warn+0x95/0xe0 [ 68.852928][ T3020] handle_overflow+0x192/0x1b0 [ 68.856879][ T3020] ? prandom_u32+0x217/0x260 [ 68.860645][ T3020] ip_idents_reserve+0x14a/0x170 [ 68.864734][ T3020] __ip_select_ident+0xe4/0x1c0 [ 68.868721][ T3020] iptunnel_xmit+0x468/0x850 [ 68.872545][ T3020] udp_tunnel_xmit_skb+0x1ba/0x290 [ 68.876778][ T3020] send4+0x5d4/0xaf0 [ 68.879994][ T3020] wg_socket_send_skb_to_peer+0xcd/0x1c0 [ 68.884597][ T3020] wg_packet_handshake_send_worker+0x16b/0x280 [ 68.889687][ T3020] process_one_work+0x85e/0xff0 [ 68.893658][ T3020] worker_thread+0xa9b/0x1430 [ 68.897487][ T3020] ? rcu_lock_release+0x20/0x20 [ 68.901443][ T3020] kthread+0x386/0x410 [ 68.904823][ T3020] ? rcu_lock_release+0x20/0x20 [ 68.908761][ T3020] ? kthread_blkcg+0xd0/0xd0 [ 68.912531][ T3020] ret_from_fork+0x1f/0x30 [ 68.916474][ T3020] Kernel Offset: disabled [ 68.920027][ T3020] Rebooting in 86400 seconds.. VM DIAGNOSIS: 07:21:42 Registers: info registers vcpu 0 CPU#0 RAX=1ffffffff2c2d760 RBX=00000000000003fd RCX=0000000000000000 RDX=00000000000003fd RSI=0000000000000000 RDI=0000000000000020 RBP=0000000000000020 RSP=ffffc900018d7488 R8 =dffffc0000000000 R9 =fffff5200031ae9e R10=fffff5200031ae9e R11=ffffffff83f6a420 R12=dffffc0000000000 R13=1ffffffff2ad0463 R14=ffffffff9616bde0 R15=0000000000000000 RIP=ffffffff83f6a493 RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff888020600000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f70fa315e9c CR3=00000000552ec000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 Opmask00=0000000004222200 Opmask01=0000000000000fff Opmask02=00000000ffffffef Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 cdbdb4c6f9b3cfa9 ccfdd53f3940cda9 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 61f8e5020c5491fa 26bc4e1f9a76504d ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 d36be18d52e74008 92e0425df8168802 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 646f3db649b453b8 e19fc6320e65a175 ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00000000ffffffff 00000000000000b4 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000034 ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 b7184e26892817da 642e11a230cac1df ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 027c24cb4c152817 0000000000000000 ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 64b81aac9d6a7288 bca2e73a631a5a4e ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 8e994ecd00000000 f2462c1638d210f8 ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 b60ba1988284cefc 87c3fed8a05ffd9a ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 eae31e2d506dbe72 ca832c4f00373649 ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 a54ff53a3c6ef372 bb67ae856a09e667 ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 5be0cd191f83d9ab 9b05688c510e527f ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2525252525252525 2525252525252525 2525252525252525 2525252525252525 ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 6c6c255b20642523 00202c0028732520 3e2d205d736d756c 6c255b2064252300 ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4949005b05410006 000509000d560005 1b08055d56485049 49005b0541000600 ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 syzkaller build log: go env (err=) 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-build1635881792=/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='go1.24.4' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at 001c90610fb 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=001c90610fb2f2ac7cbbc9cd6af3f547b821a8ad -X github.com/google/syzkaller/prog.gitRevisionDate=20250926-171341" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=001c90610fb2f2ac7cbbc9cd6af3f547b821a8ad -X github.com/google/syzkaller/prog.gitRevisionDate=20250926-171341" ./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=001c90610fb2f2ac7cbbc9cd6af3f547b821a8ad -X github.com/google/syzkaller/prog.gitRevisionDate=20250926-171341" -o ./bin/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 -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_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"001c90610fb2f2ac7cbbc9cd6af3f547b821a8ad\" /usr/bin/ld: /tmp/ccZqxKJx.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): 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