UBSAN: signed-integer-overflow in ip_idents_reserve ================================================================================ UBSAN: signed-integer-overflow in ./arch/x86/include/asm/atomic.h:165:11 1175525299 + 1358810344 cannot be represented in type 'int' CPU: 0 PID: 6370 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 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+0x466/0x7b0 net/ipv4/ip_tunnel_core.c:80 udp_tunnel_xmit_skb+0x1ba/0x290 net/ipv4/udp_tunnel_core.c:190 geneve_xmit_skb drivers/net/geneve.c:1004 [inline] geneve_xmit+0x1d05/0x2140 drivers/net/geneve.c:1117 __netdev_start_xmit include/linux/netdevice.h:4824 [inline] netdev_start_xmit include/linux/netdevice.h:4838 [inline] xmit_one net/core/dev.c:3601 [inline] dev_hard_start_xmit+0x294/0x780 net/core/dev.c:3617 __dev_queue_xmit+0x1678/0x28b0 net/core/dev.c:4203 neigh_output include/net/neighbour.h:509 [inline] ip6_finish_output2+0x1020/0x1490 net/ipv6/ip6_output.c:130 NF_HOOK+0x45/0x2c0 include/linux/netfilter.h:297 mld_sendpack+0x5f9/0xa70 net/ipv6/mcast.c:1676 mld_send_cr net/ipv6/mcast.c:1972 [inline] mld_ifc_timer_expire+0x7e1/0x990 net/ipv6/mcast.c:2471 call_timer_fn+0x105/0x440 kernel/time/timer.c:1444 expire_timers kernel/time/timer.c:1489 [inline] __run_timers+0x5d8/0x7a0 kernel/time/timer.c:1783 run_timer_softirq+0x19/0x30 kernel/time/timer.c:1796 __do_softirq+0x23c/0x8ae kernel/softirq.c:298 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x6d/0xb0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu+0x1e1/0x1f0 kernel/softirq.c:423 irq_exit_rcu+0x5/0x20 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x9d/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:memset_erms+0xb/0x20 arch/x86/lib/memset_64.S:65 Code: 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 e9 bd e1 3a 05 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 f9 40 88 f0 48 89 d1 f3 aa <4c> 89 c8 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 RSP: 0018:ffffc90001a4f468 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffff8880376f2648 RCX: 0000000000000000 RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffff8880376f2658 RBP: 0000000000040cd0 R08: dffffc0000000000 R09: ffff8880376f2648 R10: ffffed1006ede4cb R11: 1ffff11006ede4c9 R12: 0000000000000007 R13: 0000000000000002 R14: ffff8880376f2760 R15: dffffc0000000000 __address_space_init_once fs/inode.c:375 [inline] inode_init_once fs/inode.c:398 [inline] init_once+0x237/0x260 fs/inode.c:407 setup_object+0x40/0x130 mm/slub.c:1609 allocate_slab mm/slub.c:1803 [inline] new_slab+0x1b0/0x4a0 mm/slub.c:1829 new_slab_objects mm/slub.c:2587 [inline] ___slab_alloc+0x3d1/0x580 mm/slub.c:2751 __slab_alloc mm/slub.c:2791 [inline] slab_alloc_node mm/slub.c:2866 [inline] slab_alloc mm/slub.c:2909 [inline] kmem_cache_alloc+0x131/0x2e0 mm/slub.c:2914 alloc_inode fs/inode.c:235 [inline] new_inode_pseudo+0x7d/0x220 fs/inode.c:968 new_inode+0x25/0x1c0 fs/inode.c:997 debugfs_get_inode fs/debugfs/inode.c:68 [inline] __debugfs_create_file+0x148/0x520 fs/debugfs/inode.c:405 add_sta_files net/mac80211/debugfs_netdev.c:677 [inline] add_files net/mac80211/debugfs_netdev.c:797 [inline] ieee80211_debugfs_add_netdev+0xd6a/0xe50 net/mac80211/debugfs_netdev.c:825 ieee80211_if_add+0x717/0x16a0 net/mac80211/iface.c:2009 ieee80211_register_hw+0x2be1/0x3bf0 net/mac80211/main.c:1309 mac80211_hwsim_new_radio+0x2c63/0x4300 drivers/net/wireless/mac80211_hwsim.c:3300 hwsim_new_radio_nl+0xb4f/0xd50 drivers/net/wireless/mac80211_hwsim.c:3881 genl_family_rcv_msg_doit net/netlink/genetlink.c:739 [inline] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0xb22/0xdd0 net/netlink/genetlink.c:800 netlink_rcv_skb+0x187/0x390 net/netlink/af_netlink.c:2503 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] netlink_unicast+0x7b7/0x9b0 net/netlink/af_netlink.c:1340 netlink_sendmsg+0x968/0xb50 net/netlink/af_netlink.c:1914 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg+0x15c/0x170 net/socket.c:663 __sys_sendto+0x323/0x430 net/socket.c:2005 __do_sys_sendto net/socket.c:2017 [inline] __se_sys_sendto net/socket.c:2013 [inline] __x64_sys_sendto+0xda/0xf0 net/socket.c:2013 do_syscall_64+0x34/0x50 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f378254ea3c Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b RSP: 002b:00007ffde7bb18f0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f37832c2620 RCX: 00007f378254ea3c RDX: 0000000000000024 RSI: 00007f37832c2670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffde7bb1944 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f37832c2670 R15: 0000000000000000 ================================================================================ ---------------- Code disassembly (best guess): 0: 0f af c6 imul %esi,%eax 3: f3 48 ab rep stos %rax,%es:(%rdi) 6: 89 d1 mov %edx,%ecx 8: f3 aa rep stos %al,%es:(%rdi) a: 4c 89 c8 mov %r9,%rax d: e9 bd e1 3a 05 jmp 0x53ae1cf 12: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 19: 00 00 00 00 1d: 66 90 xchg %ax,%ax 1f: 49 89 f9 mov %rdi,%r9 22: 40 88 f0 mov %sil,%al 25: 48 89 d1 mov %rdx,%rcx 28: f3 aa rep stos %al,%es:(%rdi) * 2a: 4c 89 c8 mov %r9,%rax <-- trapping instruction 2d: c3 ret 2e: cc int3 2f: cc int3 30: cc int3 31: cc int3 32: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 39: 00 00 00 00 3d: 66 90 xchg %ax,%ax 3f: 49 rex.WB Warning: Permanently added '10.128.1.245' (ED25519) to the list of known hosts. 2025/10/29 10:46:47 parsed 1 programs [ 50.616860][ T5966] cgroup: Unknown subsys name 'net' [ 50.718510][ T5966] cgroup: Unknown subsys name 'rlimit' [ 52.365920][ T5966] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 53.195032][ T5975] IPVS: ftp: loaded support on port[0] = 21 [ 53.477067][ T5995] IPVS: ftp: loaded support on port[0] = 21 [ 53.678750][ T6016] IPVS: ftp: loaded support on port[0] = 21 [ 53.865228][ T6034] IPVS: ftp: loaded support on port[0] = 21 [ 53.912871][ T6034] chnl_net:caif_netlink_parms(): no params data found [ 53.938843][ T6034] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.946059][ T6034] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.953746][ T6034] device bridge_slave_0 entered promiscuous mode [ 53.961569][ T6034] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.968666][ T6034] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.976284][ T6034] device bridge_slave_1 entered promiscuous mode [ 53.993508][ T6034] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.005405][ T6034] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.021767][ T6034] team0: Port device team_slave_0 added [ 54.028821][ T6034] team0: Port device team_slave_1 added [ 54.044400][ T6034] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.051363][ T6034] 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. [ 54.077731][ T6034] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.089548][ T6034] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.096772][ T6034] 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. [ 54.122667][ T6034] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.143365][ T6034] device hsr_slave_0 entered promiscuous mode [ 54.150110][ T6034] device hsr_slave_1 entered promiscuous mode [ 54.201821][ T6034] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 54.210159][ T6034] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 54.218425][ T6034] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 54.227135][ T6034] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 54.241858][ T6034] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.248943][ T6034] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.256375][ T6034] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.263531][ T6034] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.291052][ T6034] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.301657][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.311726][ T1121] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.319734][ T1121] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.327984][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 54.341102][ T6034] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.350969][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.359419][ T1121] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.366490][ T1121] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.376631][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.384961][ T1121] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.391984][ T1121] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.408445][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 54.417512][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 54.427419][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 54.442549][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 54.453248][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 54.462735][ T6034] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 54.509532][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 54.516978][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 54.527662][ T6034] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.543066][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.558350][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.566562][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.574179][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.583444][ T6034] device veth0_vlan entered promiscuous mode [ 54.594746][ T6034] device veth1_vlan entered promiscuous mode [ 54.608717][ T1247] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.616562][ T1247] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.624682][ T1247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.636964][ T6034] device veth0_macvtap entered promiscuous mode [ 54.645793][ T6034] device veth1_macvtap entered promiscuous mode [ 54.658081][ T6034] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.665811][ T1247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.675236][ T1247] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.687434][ T6034] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.695135][ T1247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.705678][ T6034] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.714482][ T6034] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.723150][ T6034] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.731860][ T6034] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.908322][ T516] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.922344][ T6034] syz-executor (6034) used greatest stack depth: 23592 bytes left [ 54.976669][ T516] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.980247][ T6068] IPVS: ftp: loaded support on port[0] = 21 [ 55.047133][ T516] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.097713][ T516] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.225635][ T6088] IPVS: ftp: loaded support on port[0] = 21 [ 55.323875][ T6098] IPVS: ftp: loaded support on port[0] = 21 [ 55.600370][ T6137] IPVS: ftp: loaded support on port[0] = 21 [ 55.797238][ T516] device hsr_slave_0 left promiscuous mode [ 55.804666][ T516] device hsr_slave_1 left promiscuous mode [ 55.824383][ T516] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 55.831878][ T516] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 55.841695][ T516] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 55.849430][ T516] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 55.857562][ T516] device bridge_slave_1 left promiscuous mode [ 55.864034][ T516] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.873330][ T516] device bridge_slave_0 left promiscuous mode [ 55.879561][ T516] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.899678][ T516] device veth1_macvtap left promiscuous mode [ 55.905954][ T516] device veth0_macvtap left promiscuous mode [ 55.912225][ T516] device veth1_vlan left promiscuous mode [ 55.918023][ T516] device veth0_vlan left promiscuous mode [ 55.986007][ T6173] IPVS: ftp: loaded support on port[0] = 21 [ 56.008666][ T516] team0 (unregistering): Port device team_slave_1 removed [ 56.017914][ T516] team0 (unregistering): Port device team_slave_0 removed [ 56.027372][ T516] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 56.038243][ T516] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 56.065402][ T516] bond0 (unregistering): Released all slaves [ 56.396565][ T6208] IPVS: ftp: loaded support on port[0] = 21 [ 56.674597][ T6251] IPVS: ftp: loaded support on port[0] = 21 [ 56.747289][ T6261] IPVS: ftp: loaded support on port[0] = 21 [ 57.050649][ T6299] IPVS: ftp: loaded support on port[0] = 21 [ 57.326679][ T6344] IPVS: ftp: loaded support on port[0] = 21 [ 57.367086][ T529] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.375159][ T529] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.382561][ T1247] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 57.401311][ T1247] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.409275][ T1247] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.417695][ T1019] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 57.581468][ T6365] IPVS: ftp: loaded support on port[0] = 21 2025/10/29 10:46:55 executed programs: 0 [ 57.762990][ T6370] IPVS: ftp: loaded support on port[0] = 21 [ 57.815334][ T6370] chnl_net:caif_netlink_parms(): no params data found [ 57.847868][ T6370] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.855531][ T6370] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.863462][ T6370] device bridge_slave_0 entered promiscuous mode [ 57.875566][ T6370] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.882695][ T6370] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.890549][ T6370] device bridge_slave_1 entered promiscuous mode [ 57.903624][ T6370] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.913893][ T6370] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.934378][ T6370] team0: Port device team_slave_0 added [ 57.941003][ T6370] team0: Port device team_slave_1 added [ 57.952888][ T6370] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 57.960047][ T6370] 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. [ 57.986206][ T6370] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 57.997814][ T6370] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.004899][ T6370] 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. [ 58.030888][ T6370] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.056360][ T6370] device hsr_slave_0 entered promiscuous mode [ 58.062906][ T6370] device hsr_slave_1 entered promiscuous mode [ 58.097003][ T6370] lapbether: lapb_disconnect_request err: 4 [ 58.176802][ T6370] lapbether: lapb_disconnect_request err: 4 [ 58.256287][ T6370] lapbether: lapb_disconnect_request err: 4 [ 58.345821][ T6370] lapbether: lapb_disconnect_request err: 4 [ 58.451043][ T6370] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.460487][ T6370] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.473428][ T6370] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.482202][ T6370] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.528901][ T6370] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.543096][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.551009][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.560932][ T6370] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.574902][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.583521][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.592079][ T1121] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.599357][ T1121] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.607544][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.616801][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.625412][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.633865][ T1121] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.640980][ T1121] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.651088][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.664726][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.673520][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.682004][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.691851][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.709849][ T6370] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 58.720718][ T6370] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 58.732430][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.741259][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.749768][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.758360][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.767759][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 58.776002][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.791994][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.855109][ T529] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.862651][ T529] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.878862][ T6370] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.898112][ T529] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 58.906656][ T529] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.922714][ T1019] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 58.931048][ T1019] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 58.940578][ T1019] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 58.948418][ T1019] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 58.956145][ T6370] device veth0_vlan entered promiscuous mode [ 58.970007][ T6370] device veth1_vlan entered promiscuous mode [ 58.988166][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 58.996279][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.004239][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 59.012641][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.022364][ T6370] device veth0_macvtap entered promiscuous mode [ 59.033758][ T6370] device veth1_macvtap entered promiscuous mode [ 59.047533][ T6370] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.057709][ T6370] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.065252][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.073242][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 59.081462][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.090049][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.098646][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.107144][ T1121] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.117076][ T6370] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.126016][ T6370] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.134732][ T6370] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.143399][ T6370] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.174329][ C0] ================================================================================ [ 59.183666][ C0] UBSAN: signed-integer-overflow in ./arch/x86/include/asm/atomic.h:165:11 [ 59.192488][ C0] 1175525299 + 1358810344 cannot be represented in type 'int' [ 59.200063][ C0] CPU: 0 PID: 6370 Comm: syz-executor Not tainted syzkaller #0 [ 59.207691][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 59.217852][ C0] Call Trace: [ 59.221135][ C0] [ 59.223999][ C0] dump_stack+0xfd/0x16e [ 59.228248][ C0] ubsan_epilogue+0xa/0x30 [ 59.232700][ C0] handle_overflow+0x192/0x1b0 [ 59.237472][ C0] ? __sys_sendto+0x323/0x430 [ 59.242160][ C0] ? prandom_u32+0x1d/0x1f0 [ 59.246674][ C0] ip_idents_reserve+0x14a/0x170 [ 59.251640][ C0] __ip_select_ident+0xe4/0x1c0 [ 59.256503][ C0] iptunnel_xmit+0x466/0x7b0 [ 59.261103][ C0] udp_tunnel_xmit_skb+0x1ba/0x290 [ 59.266427][ C0] geneve_xmit+0x1d05/0x2140 [ 59.271032][ C0] dev_hard_start_xmit+0x294/0x780 [ 59.276150][ C0] __dev_queue_xmit+0x1678/0x28b0 [ 59.281177][ C0] ip6_finish_output2+0x1020/0x1490 [ 59.286390][ C0] NF_HOOK+0x45/0x2c0 [ 59.290567][ C0] ? NF_HOOK+0x2c0/0x2c0 [ 59.294813][ C0] mld_sendpack+0x5f9/0xa70 [ 59.299323][ C0] mld_ifc_timer_expire+0x7e1/0x990 [ 59.304526][ C0] ? lock_acquire+0x78/0x310 [ 59.309234][ C0] ? lock_release+0x69/0x610 [ 59.313846][ C0] ? debug_object_deactivate+0x9b/0x250 [ 59.319401][ C0] ? mld_gq_timer_expire+0xe0/0xe0 [ 59.324524][ C0] call_timer_fn+0x105/0x440 [ 59.329120][ C0] ? mld_gq_timer_expire+0xe0/0xe0 [ 59.334331][ C0] __run_timers+0x5d8/0x7a0 [ 59.338941][ C0] ? __do_softirq+0x164/0x8ae [ 59.343624][ C0] run_timer_softirq+0x19/0x30 [ 59.348392][ C0] __do_softirq+0x23c/0x8ae [ 59.352911][ C0] ? asm_call_irq_on_stack+0xf/0x20 [ 59.358118][ C0] asm_call_irq_on_stack+0xf/0x20 [ 59.363137][ C0] [ 59.366089][ C0] do_softirq_own_stack+0x6d/0xb0 [ 59.371295][ C0] __irq_exit_rcu+0x1e1/0x1f0 [ 59.375980][ C0] irq_exit_rcu+0x5/0x20 [ 59.380251][ C0] sysvec_apic_timer_interrupt+0x9d/0xb0 [ 59.385992][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 59.392003][ C0] RIP: 0010:memset_erms+0xb/0x20 [ 59.396940][ C0] Code: 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 e9 bd e1 3a 05 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 f9 40 88 f0 48 89 d1 f3 aa <4c> 89 c8 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 [ 59.416545][ C0] RSP: 0018:ffffc90001a4f468 EFLAGS: 00000202 [ 59.422707][ C0] RAX: 0000000000000000 RBX: ffff8880376f2648 RCX: 0000000000000000 [ 59.430762][ C0] RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffff8880376f2658 [ 59.438798][ C0] RBP: 0000000000040cd0 R08: dffffc0000000000 R09: ffff8880376f2648 [ 59.446750][ C0] R10: ffffed1006ede4cb R11: 1ffff11006ede4c9 R12: 0000000000000007 [ 59.454709][ C0] R13: 0000000000000002 R14: ffff8880376f2760 R15: dffffc0000000000 [ 59.462719][ C0] init_once+0x237/0x260 [ 59.466946][ C0] setup_object+0x40/0x130 [ 59.471344][ C0] new_slab+0x1b0/0x4a0 [ 59.475471][ C0] ? mempolicy_slab_node+0x124/0x2f0 [ 59.480818][ C0] ___slab_alloc+0x3d1/0x580 [ 59.485389][ C0] ? new_inode_pseudo+0x7d/0x220 [ 59.490301][ C0] ? new_inode_pseudo+0x7d/0x220 [ 59.495230][ C0] kmem_cache_alloc+0x131/0x2e0 [ 59.500058][ C0] new_inode_pseudo+0x7d/0x220 [ 59.504986][ C0] new_inode+0x25/0x1c0 [ 59.509118][ C0] ? start_creating+0x1fc/0x310 [ 59.513937][ C0] __debugfs_create_file+0x148/0x520 [ 59.519204][ C0] ieee80211_debugfs_add_netdev+0xd6a/0xe50 [ 59.525082][ C0] ieee80211_if_add+0x717/0x16a0 [ 59.529995][ C0] ieee80211_register_hw+0x2be1/0x3bf0 [ 59.535437][ C0] mac80211_hwsim_new_radio+0x2c63/0x4300 [ 59.541143][ C0] hwsim_new_radio_nl+0xb4f/0xd50 [ 59.546143][ C0] genl_rcv_msg+0xb22/0xdd0 [ 59.550632][ C0] ? hwsim_tx_info_frame_received_nl+0xef0/0xef0 [ 59.556941][ C0] netlink_rcv_skb+0x187/0x390 [ 59.561683][ C0] ? genl_bind+0x2c0/0x2c0 [ 59.566088][ C0] genl_rcv+0x24/0x40 [ 59.570249][ C0] netlink_unicast+0x7b7/0x9b0 [ 59.575081][ C0] netlink_sendmsg+0x968/0xb50 [ 59.579913][ C0] ? netlink_getsockopt+0x4f0/0x4f0 [ 59.585124][ C0] __sock_sendmsg+0x15c/0x170 [ 59.589822][ C0] __sys_sendto+0x323/0x430 [ 59.594319][ C0] __x64_sys_sendto+0xda/0xf0 [ 59.599079][ C0] do_syscall_64+0x34/0x50 [ 59.603471][ C0] entry_SYSCALL_64_after_hwframe+0x67/0xd1 [ 59.609433][ C0] RIP: 0033:0x7f378254ea3c [ 59.614162][ C0] Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b [ 59.633920][ C0] RSP: 002b:00007ffde7bb18f0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 59.642418][ C0] RAX: ffffffffffffffda RBX: 00007f37832c2620 RCX: 00007f378254ea3c [ 59.650377][ C0] RDX: 0000000000000024 RSI: 00007f37832c2670 RDI: 0000000000000003 [ 59.658358][ C0] RBP: 0000000000000000 R08: 00007ffde7bb1944 R09: 000000000000000c [ 59.666342][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 59.674343][ C0] R13: 0000000000000000 R14: 00007f37832c2670 R15: 0000000000000000 [ 59.682356][ C0] ================================================================================ [ 59.691756][ C0] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 59.698933][ C0] CPU: 0 PID: 6370 Comm: syz-executor Not tainted syzkaller #0 [ 59.706521][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 59.716551][ C0] Call Trace: [ 59.719834][ C0] [ 59.722667][ C0] dump_stack+0xfd/0x16e [ 59.726892][ C0] panic+0x2f0/0x9c0 [ 59.730778][ C0] check_panic_on_warn+0x95/0xe0 [ 59.735693][ C0] handle_overflow+0x192/0x1b0 [ 59.740430][ C0] ? __sys_sendto+0x323/0x430 [ 59.745387][ C0] ? prandom_u32+0x1d/0x1f0 [ 59.749884][ C0] ip_idents_reserve+0x14a/0x170 [ 59.754830][ C0] __ip_select_ident+0xe4/0x1c0 [ 59.759747][ C0] iptunnel_xmit+0x466/0x7b0 [ 59.764421][ C0] udp_tunnel_xmit_skb+0x1ba/0x290 [ 59.769531][ C0] geneve_xmit+0x1d05/0x2140 [ 59.774139][ C0] dev_hard_start_xmit+0x294/0x780 [ 59.779336][ C0] __dev_queue_xmit+0x1678/0x28b0 [ 59.784338][ C0] ip6_finish_output2+0x1020/0x1490 [ 59.789515][ C0] NF_HOOK+0x45/0x2c0 [ 59.793575][ C0] ? NF_HOOK+0x2c0/0x2c0 [ 59.797891][ C0] mld_sendpack+0x5f9/0xa70 [ 59.802474][ C0] mld_ifc_timer_expire+0x7e1/0x990 [ 59.804690][ T6333] Bluetooth: hci0: command 0x0409 tx timeout [ 59.808108][ C0] ? lock_acquire+0x78/0x310 [ 59.818844][ C0] ? lock_release+0x69/0x610 [ 59.823619][ C0] ? debug_object_deactivate+0x9b/0x250 [ 59.829328][ C0] ? mld_gq_timer_expire+0xe0/0xe0 [ 59.834428][ C0] call_timer_fn+0x105/0x440 [ 59.839004][ C0] ? mld_gq_timer_expire+0xe0/0xe0 [ 59.844183][ C0] __run_timers+0x5d8/0x7a0 [ 59.848682][ C0] ? __do_softirq+0x164/0x8ae [ 59.853362][ C0] run_timer_softirq+0x19/0x30 [ 59.858110][ C0] __do_softirq+0x23c/0x8ae [ 59.863190][ C0] ? asm_call_irq_on_stack+0xf/0x20 [ 59.868486][ C0] asm_call_irq_on_stack+0xf/0x20 [ 59.873488][ C0] [ 59.876458][ C0] do_softirq_own_stack+0x6d/0xb0 [ 59.881487][ C0] __irq_exit_rcu+0x1e1/0x1f0 [ 59.886306][ C0] irq_exit_rcu+0x5/0x20 [ 59.890662][ C0] sysvec_apic_timer_interrupt+0x9d/0xb0 [ 59.896277][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 59.902237][ C0] RIP: 0010:memset_erms+0xb/0x20 [ 59.907244][ C0] Code: 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 e9 bd e1 3a 05 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 f9 40 88 f0 48 89 d1 f3 aa <4c> 89 c8 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 [ 59.927609][ C0] RSP: 0018:ffffc90001a4f468 EFLAGS: 00000202 [ 59.933668][ C0] RAX: 0000000000000000 RBX: ffff8880376f2648 RCX: 0000000000000000 [ 59.941718][ C0] RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffff8880376f2658 [ 59.949681][ C0] RBP: 0000000000040cd0 R08: dffffc0000000000 R09: ffff8880376f2648 [ 59.957856][ C0] R10: ffffed1006ede4cb R11: 1ffff11006ede4c9 R12: 0000000000000007 [ 59.965825][ C0] R13: 0000000000000002 R14: ffff8880376f2760 R15: dffffc0000000000 [ 59.973791][ C0] init_once+0x237/0x260 [ 59.978011][ C0] setup_object+0x40/0x130 [ 59.982784][ C0] new_slab+0x1b0/0x4a0 [ 59.986926][ C0] ? mempolicy_slab_node+0x124/0x2f0 [ 59.992196][ C0] ___slab_alloc+0x3d1/0x580 [ 59.996877][ C0] ? new_inode_pseudo+0x7d/0x220 [ 60.001809][ C0] ? new_inode_pseudo+0x7d/0x220 [ 60.006736][ C0] kmem_cache_alloc+0x131/0x2e0 [ 60.011696][ C0] new_inode_pseudo+0x7d/0x220 [ 60.016537][ C0] new_inode+0x25/0x1c0 [ 60.020675][ C0] ? start_creating+0x1fc/0x310 [ 60.025875][ C0] __debugfs_create_file+0x148/0x520 [ 60.031153][ C0] ieee80211_debugfs_add_netdev+0xd6a/0xe50 [ 60.037336][ C0] ieee80211_if_add+0x717/0x16a0 [ 60.042289][ C0] ieee80211_register_hw+0x2be1/0x3bf0 [ 60.047757][ C0] mac80211_hwsim_new_radio+0x2c63/0x4300 [ 60.053624][ C0] hwsim_new_radio_nl+0xb4f/0xd50 [ 60.058638][ C0] genl_rcv_msg+0xb22/0xdd0 [ 60.063514][ C0] ? hwsim_tx_info_frame_received_nl+0xef0/0xef0 [ 60.069828][ C0] netlink_rcv_skb+0x187/0x390 [ 60.074571][ C0] ? genl_bind+0x2c0/0x2c0 [ 60.078969][ C0] genl_rcv+0x24/0x40 [ 60.082939][ C0] netlink_unicast+0x7b7/0x9b0 [ 60.087778][ C0] netlink_sendmsg+0x968/0xb50 [ 60.092704][ C0] ? netlink_getsockopt+0x4f0/0x4f0 [ 60.098109][ C0] __sock_sendmsg+0x15c/0x170 [ 60.102765][ C0] __sys_sendto+0x323/0x430 [ 60.107339][ C0] __x64_sys_sendto+0xda/0xf0 [ 60.111995][ C0] do_syscall_64+0x34/0x50 [ 60.116391][ C0] entry_SYSCALL_64_after_hwframe+0x67/0xd1 [ 60.122269][ C0] RIP: 0033:0x7f378254ea3c [ 60.126659][ C0] Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b [ 60.146280][ C0] RSP: 002b:00007ffde7bb18f0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 60.154692][ C0] RAX: ffffffffffffffda RBX: 00007f37832c2620 RCX: 00007f378254ea3c [ 60.162662][ C0] RDX: 0000000000000024 RSI: 00007f37832c2670 RDI: 0000000000000003 [ 60.170623][ C0] RBP: 0000000000000000 R08: 00007ffde7bb1944 R09: 000000000000000c [ 60.178672][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 60.186632][ C0] R13: 0000000000000000 R14: 00007f37832c2670 R15: 0000000000000000 [ 60.194884][ C0] Kernel Offset: disabled [ 60.199222][ C0] Rebooting in 86400 seconds.. 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-build2528876832=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs-2/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 e2beed91937 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=e2beed91937c0ace342f19a2e9afb67adb3a828a -X github.com/google/syzkaller/prog.gitRevisionDate=20250911-084951" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=e2beed91937c0ace342f19a2e9afb67adb3a828a -X github.com/google/syzkaller/prog.gitRevisionDate=20250911-084951" ./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=e2beed91937c0ace342f19a2e9afb67adb3a828a -X github.com/google/syzkaller/prog.gitRevisionDate=20250911-084951" -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=\"e2beed91937c0ace342f19a2e9afb67adb3a828a\" /usr/bin/ld: /tmp/ccKwcYCP.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