possible deadlock in register_netdevice ============================================ WARNING: possible recursive locking detected 6.14.0-rc5-syzkaller-g865eddcf0afb #0 Not tainted -------------------------------------------- dhcpcd/5506 is trying to acquire lock: ffff88807f04cd28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2765 [inline] ffff88807f04cd28 (&dev->lock){+.+.}-{4:4}, at: register_netdevice+0x12d8/0x1b70 net/core/dev.c:11008 but task is already holding lock: ffff88807b41cd28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2765 [inline] ffff88807b41cd28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock_ops include/linux/netdevice.h:2804 [inline] ffff88807b41cd28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 net/core/dev_api.c:65 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&dev->lock); lock(&dev->lock); *** DEADLOCK *** May be due to missing lock nesting notation 2 locks held by dhcpcd/5506: #0: ffffffff8fed6848 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #0: ffffffff8fed6848 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x34c/0x1d80 net/ipv4/devinet.c:1121 #1: ffff88807b41cd28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2765 [inline] #1: ffff88807b41cd28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock_ops include/linux/netdevice.h:2804 [inline] #1: ffff88807b41cd28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 net/core/dev_api.c:65 stack backtrace: CPU: 1 UID: 0 PID: 5506 Comm: dhcpcd Not tainted 6.14.0-rc5-syzkaller-g865eddcf0afb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_deadlock_bug+0x483/0x620 kernel/locking/lockdep.c:3039 check_deadlock kernel/locking/lockdep.c:3091 [inline] validate_chain+0x15e2/0x5920 kernel/locking/lockdep.c:3893 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 __mutex_lock_common kernel/locking/mutex.c:585 [inline] __mutex_lock+0x19c/0x1010 kernel/locking/mutex.c:730 netdev_lock include/linux/netdevice.h:2765 [inline] register_netdevice+0x12d8/0x1b70 net/core/dev.c:11008 bpq_new_device drivers/net/hamradio/bpqether.c:499 [inline] bpq_device_event+0x4b1/0x8d0 drivers/net/hamradio/bpqether.c:542 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85 __dev_notify_flags+0x207/0x400 netif_change_flags+0xf0/0x1a0 net/core/dev.c:9442 dev_change_flags+0x146/0x270 net/core/dev_api.c:66 devinet_ioctl+0xea2/0x1d80 net/ipv4/devinet.c:1200 inet_ioctl+0x3d7/0x4f0 net/ipv4/af_inet.c:1001 sock_do_ioctl+0x158/0x460 net/socket.c:1190 sock_ioctl+0x626/0x8e0 net/socket.c:1309 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f03e3a09d49 Code: 5c c3 48 8d 44 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 b8 10 00 00 00 c7 44 24 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 76 10 48 8b 15 ae 60 0d 00 f7 d8 41 83 c8 RSP: 002b:00007ffd6a534568 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f03e393b6c0 RCX: 00007f03e3a09d49 RDX: 00007ffd6a544758 RSI: 0000000000008914 RDI: 000000000000000e RBP: 00007ffd6a554918 R08: 00007ffd6a544718 R09: 00007ffd6a5446c8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd6a544758 R14: 0000000000000028 R15: 0000000000008914 Warning: Permanently added '10.128.0.31' (ED25519) to the list of known hosts. 2025/03/07 14:47:05 ignoring optional flag "sandboxArg"="0" 2025/03/07 14:47:06 parsed 1 programs [ 65.260218][ T5835] cgroup: Unknown subsys name 'net' [ 65.386283][ T5835] cgroup: Unknown subsys name 'cpuset' [ 65.394708][ T5835] cgroup: Unknown subsys name 'rlimit' [ 66.697530][ T5835] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 69.218022][ T5844] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 69.927666][ T5871] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 69.936130][ T5871] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 69.944254][ T5871] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 69.953239][ T5871] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 69.962216][ T5871] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 69.970547][ T5871] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 70.303012][ T54] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.310923][ T54] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.338534][ T54] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.346871][ T54] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.852492][ T5891] chnl_net:caif_netlink_parms(): no params data found [ 70.929447][ T5891] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.937820][ T5891] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.946147][ T5891] bridge_slave_0: entered allmulticast mode [ 70.953354][ T5891] bridge_slave_0: entered promiscuous mode [ 70.968486][ T5891] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.976024][ T5891] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.983480][ T5891] bridge_slave_1: entered allmulticast mode [ 70.990027][ T5891] bridge_slave_1: entered promiscuous mode [ 71.014464][ T5891] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.025609][ T5891] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.048355][ T5891] team0: Port device team_slave_0 added [ 71.057461][ T5891] team0: Port device team_slave_1 added [ 71.078513][ T5891] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.086122][ T5891] 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. [ 71.112979][ T5891] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.126613][ T5891] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.133947][ T5891] 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. [ 71.160428][ T5891] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.192847][ T5891] hsr_slave_0: entered promiscuous mode [ 71.199020][ T5891] hsr_slave_1: entered promiscuous mode [ 71.321934][ T5891] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.340151][ T5891] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.355173][ T5891] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.367961][ T5891] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.428661][ T5891] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.450758][ T5891] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.466218][ T54] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.473766][ T54] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.500234][ T54] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.507501][ T54] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.627241][ T5891] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.660384][ T5891] veth0_vlan: entered promiscuous mode [ 71.674101][ T5891] veth1_vlan: entered promiscuous mode [ 71.696370][ T5891] veth0_macvtap: entered promiscuous mode [ 71.705927][ T5891] veth1_macvtap: entered promiscuous mode [ 71.721217][ T5891] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.737901][ T5891] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.749972][ T5891] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.759570][ T1297] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.766452][ T1297] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.773432][ T5891] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.782177][ T5891] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.791454][ T5891] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.920630][ T54] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.977881][ T54] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.037450][ T54] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.113135][ T54] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2025/03/07 14:47:16 executed programs: 0 [ 72.913315][ T5871] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 72.924348][ T5871] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 72.933148][ T5871] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 72.941288][ T5871] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 72.949994][ T5871] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 72.963349][ T5871] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 73.078837][ T5941] chnl_net:caif_netlink_parms(): no params data found [ 73.130670][ T5941] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.138116][ T5941] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.145573][ T5941] bridge_slave_0: entered allmulticast mode [ 73.152169][ T5941] bridge_slave_0: entered promiscuous mode [ 73.160531][ T5941] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.167814][ T5941] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.175615][ T5941] bridge_slave_1: entered allmulticast mode [ 73.182172][ T5941] bridge_slave_1: entered promiscuous mode [ 73.206694][ T5941] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.218720][ T5941] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.246987][ T5941] team0: Port device team_slave_0 added [ 73.256312][ T5941] team0: Port device team_slave_1 added [ 73.278181][ T5941] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.286592][ T5941] 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. [ 73.313297][ T5941] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.327541][ T5941] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.334885][ T5941] 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. [ 73.361381][ T5941] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.400770][ T5941] hsr_slave_0: entered promiscuous mode [ 73.407344][ T5941] hsr_slave_1: entered promiscuous mode [ 73.413608][ T5941] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 73.421393][ T5941] Cannot create hsr debugfs directory [ 75.033815][ T5151] Bluetooth: hci0: command tx timeout [ 75.388167][ T54] bridge_slave_1: left allmulticast mode [ 75.396049][ T54] bridge_slave_1: left promiscuous mode [ 75.402976][ T54] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.417773][ T54] bridge_slave_0: left allmulticast mode [ 75.423857][ T54] bridge_slave_0: left promiscuous mode [ 75.430021][ T54] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.777079][ T54] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 75.788471][ T54] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 75.798843][ T54] bond0 (unregistering): Released all slaves [ 75.826202][ T5506] [ 75.828576][ T5506] ============================================ [ 75.834727][ T5506] WARNING: possible recursive locking detected [ 75.840921][ T5506] 6.14.0-rc5-syzkaller-g865eddcf0afb #0 Not tainted [ 75.847483][ T5506] -------------------------------------------- [ 75.853621][ T5506] dhcpcd/5506 is trying to acquire lock: [ 75.859227][ T5506] ffff88807f04cd28 (&dev->lock){+.+.}-{4:4}, at: register_netdevice+0x12d8/0x1b70 [ 75.868441][ T5506] [ 75.868441][ T5506] but task is already holding lock: [ 75.875878][ T5506] ffff88807b41cd28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 [ 75.884820][ T5506] [ 75.884820][ T5506] other info that might help us debug this: [ 75.892881][ T5506] Possible unsafe locking scenario: [ 75.892881][ T5506] [ 75.900308][ T5506] CPU0 [ 75.903741][ T5506] ---- [ 75.906997][ T5506] lock(&dev->lock); [ 75.910959][ T5506] lock(&dev->lock); [ 75.914923][ T5506] [ 75.914923][ T5506] *** DEADLOCK *** [ 75.914923][ T5506] [ 75.923046][ T5506] May be due to missing lock nesting notation [ 75.923046][ T5506] [ 75.931428][ T5506] 2 locks held by dhcpcd/5506: [ 75.936170][ T5506] #0: ffffffff8fed6848 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x34c/0x1d80 [ 75.945380][ T5506] #1: ffff88807b41cd28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 [ 75.954673][ T5506] [ 75.954673][ T5506] stack backtrace: [ 75.960575][ T5506] CPU: 1 UID: 0 PID: 5506 Comm: dhcpcd Not tainted 6.14.0-rc5-syzkaller-g865eddcf0afb #0 [ 75.960594][ T5506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 75.960603][ T5506] Call Trace: [ 75.960608][ T5506] [ 75.960613][ T5506] dump_stack_lvl+0x241/0x360 [ 75.960628][ T5506] ? __pfx_dump_stack_lvl+0x10/0x10 [ 75.960637][ T5506] ? __pfx__printk+0x10/0x10 [ 75.960645][ T5506] ? lockdep_unlock+0x16a/0x300 [ 75.960661][ T5506] print_deadlock_bug+0x483/0x620 [ 75.960670][ T5506] ? lockdep_unlock+0x16a/0x300 [ 75.960683][ T5506] validate_chain+0x15e2/0x5920 [ 75.960696][ T5506] ? __pfx_validate_chain+0x10/0x10 [ 75.960707][ T5506] ? __pfx_validate_chain+0x10/0x10 [ 75.960718][ T5506] ? look_up_lock_class+0x77/0x170 [ 75.960729][ T5506] ? register_lock_class+0x102/0x980 [ 75.960743][ T5506] ? __pfx_register_lock_class+0x10/0x10 [ 75.960757][ T5506] ? mark_lock+0x9a/0x360 [ 75.960765][ T5506] __lock_acquire+0x1397/0x2100 [ 75.960782][ T5506] lock_acquire+0x1ed/0x550 [ 75.960795][ T5506] ? register_netdevice+0x12d8/0x1b70 [ 75.960807][ T5506] ? __pfx_lock_acquire+0x10/0x10 [ 75.960820][ T5506] ? __pfx___might_resched+0x10/0x10 [ 75.960832][ T5506] ? __pfx_lock_release+0x10/0x10 [ 75.960847][ T5506] __mutex_lock+0x19c/0x1010 [ 75.960858][ T5506] ? register_netdevice+0x12d8/0x1b70 [ 75.960867][ T5506] ? __mutex_unlock_slowpath+0x227/0x800 [ 75.960878][ T5506] ? _raw_spin_lock_irq+0xdf/0x120 [ 75.960887][ T5506] ? register_netdevice+0x12d8/0x1b70 [ 75.960896][ T5506] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 75.960907][ T5506] ? __pfx___mutex_lock+0x10/0x10 [ 75.960916][ T5506] ? _raw_spin_unlock_irq+0x23/0x50 [ 75.960927][ T5506] ? netdev_register_kobject+0x2b0/0x2f0 [ 75.960937][ T5506] register_netdevice+0x12d8/0x1b70 [ 75.960950][ T5506] ? __pfx_register_netdevice+0x10/0x10 [ 75.960962][ T5506] bpq_device_event+0x4b1/0x8d0 [ 75.960976][ T5506] ? lockdep_rtnl_is_held+0x26/0x40 [ 75.960987][ T5506] notifier_call_chain+0x1a5/0x3f0 [ 75.961001][ T5506] __dev_notify_flags+0x207/0x400 [ 75.961009][ T5506] ? dev_set_rx_mode+0xb8/0x2e0 [ 75.961024][ T5506] ? __pfx___dev_notify_flags+0x10/0x10 [ 75.961038][ T5506] ? __dev_change_flags+0x515/0x6f0 [ 75.961047][ T5506] ? __pfx___mutex_lock+0x10/0x10 [ 75.961057][ T5506] ? __pfx___dev_change_flags+0x10/0x10 [ 75.961066][ T5506] ? __pfx___mutex_lock+0x10/0x10 [ 75.961076][ T5506] netif_change_flags+0xf0/0x1a0 [ 75.961086][ T5506] dev_change_flags+0x146/0x270 [ 75.961100][ T5506] devinet_ioctl+0xea2/0x1d80 [ 75.961116][ T5506] ? __pfx_devinet_ioctl+0x10/0x10 [ 75.961129][ T5506] ? get_user_ifreq+0x1bb/0x200 [ 75.961140][ T5506] inet_ioctl+0x3d7/0x4f0 [ 75.961149][ T5506] ? __pfx_inet_ioctl+0x10/0x10 [ 75.961159][ T5506] ? tomoyo_path_number_perm+0x5dd/0x770 [ 75.961176][ T5506] sock_do_ioctl+0x158/0x460 [ 75.961189][ T5506] ? __pfx_sock_do_ioctl+0x10/0x10 [ 75.961201][ T5506] ? __pfx_lock_release+0x10/0x10 [ 75.961216][ T5506] sock_ioctl+0x626/0x8e0 [ 75.961227][ T5506] ? __pfx_sock_ioctl+0x10/0x10 [ 75.961238][ T5506] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 75.961252][ T5506] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 75.961266][ T5506] ? __pfx_sock_ioctl+0x10/0x10 [ 75.961276][ T5506] __se_sys_ioctl+0xf5/0x170 [ 75.961287][ T5506] do_syscall_64+0xf3/0x230 [ 75.961298][ T5506] ? clear_bhb_loop+0x35/0x90 [ 75.961312][ T5506] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.961328][ T5506] RIP: 0033:0x7f03e3a09d49 [ 75.961339][ T5506] Code: 5c c3 48 8d 44 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 b8 10 00 00 00 c7 44 24 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 76 10 48 8b 15 ae 60 0d 00 f7 d8 41 83 c8 [ 75.961347][ T5506] RSP: 002b:00007ffd6a534568 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 75.961357][ T5506] RAX: ffffffffffffffda RBX: 00007f03e393b6c0 RCX: 00007f03e3a09d49 [ 75.961364][ T5506] RDX: 00007ffd6a544758 RSI: 0000000000008914 RDI: 000000000000000e [ 75.961370][ T5506] RBP: 00007ffd6a554918 R08: 00007ffd6a544718 R09: 00007ffd6a5446c8 [ 75.961376][ T5506] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.961381][ T5506] R13: 00007ffd6a544758 R14: 0000000000000028 R15: 0000000000008914 [ 75.961390][ T5506] [ 76.406391][ T54] hsr_slave_0: left promiscuous mode [ 76.413681][ T54] hsr_slave_1: left promiscuous mode [ 76.419660][ T54] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 76.428134][ T54] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 76.436042][ T54] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 76.445167][ T54] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 76.454822][ T54] veth1_macvtap: left promiscuous mode [ 76.460356][ T54] veth0_macvtap: left promiscuous mode [ 76.466058][ T54] veth1_vlan: left promiscuous mode [ 76.471632][ T54] veth0_vlan: left promiscuous mode [ 76.627958][ T54] team0 (unregistering): Port device team_slave_1 removed [ 76.646824][ T54] team0 (unregistering): Port device team_slave_0 removed [ 77.023260][ T5941] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.056534][ T5941] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.075331][ T5941] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.102744][ T5941] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.112887][ T5151] Bluetooth: hci0: command tx timeout [ 77.168334][ T5941] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.181838][ T5941] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.305313][ T3531] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.312447][ T3531] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.325724][ T3531] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.332877][ T3531] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.495559][ T5941] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.545005][ T5941] veth0_vlan: entered promiscuous mode [ 77.555048][ T5941] veth1_vlan: entered promiscuous mode [ 77.579074][ T5941] veth0_macvtap: entered promiscuous mode [ 77.588401][ T5941] veth1_macvtap: entered promiscuous mode [ 77.605913][ T5941] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.618456][ T5941] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.631117][ T5941] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.640150][ T5941] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.651004][ T5941] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.660475][ T5941] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.694452][ T5941] ieee80211 phy5: Selected rate control algorithm 'minstrel_ht' [ 77.716134][ T54] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.725709][ T5941] ieee80211 phy6: Selected rate control algorithm 'minstrel_ht' [ 77.734825][ T54] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.756383][ T3558] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.764695][ T3558] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 syzkaller build log: go env (err=) GO111MODULE='auto' GOARCH='amd64' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFLAGS='' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' 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' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.22.7' GCCGO='gccgo' GOAMD64='v1' AR='ar' CC='gcc' CXX='g++' CGO_ENABLED='1' GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod' GOWORK='' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' PKG_CONFIG='pkg-config' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1139692949=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at f00eed24f2 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}}' ./sys/syz-sysgen | grep -q false || go install ./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 go fmt ./sys/... >/dev/null touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=f00eed24f2a1332b07fef1a353a439133978d97b -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241101-132521'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -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 -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"f00eed24f2a1332b07fef1a353a439133978d97b\" /usr/bin/ld: /tmp/cc8ChOvO.o: in function `test_cover_filter()': executor.cc:(.text+0x1426b): warning: the use of `tempnam' is dangerous, better use `mkstemp' /usr/bin/ld: /tmp/cc8ChOvO.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