possible deadlock in lapbeth_device_event ============================================ WARNING: possible recursive locking detected 6.14.0-rc7-syzkaller-01431-gbfc17c165835 #0 Not tainted -------------------------------------------- dhcpcd/5501 is trying to acquire lock: ffff888028508d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2731 [inline] ffff888028508d28 (&dev->lock){+.+.}-{4:4}, at: netif_napi_add_weight include/linux/netdevice.h:2763 [inline] ffff888028508d28 (&dev->lock){+.+.}-{4:4}, at: lapbeth_new_device drivers/net/wan/lapbether.c:415 [inline] ffff888028508d28 (&dev->lock){+.+.}-{4:4}, at: lapbeth_device_event+0x766/0xa20 drivers/net/wan/lapbether.c:460 but task is already holding lock: ffff888064720d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2731 [inline] ffff888064720d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:40 [inline] ffff888064720d28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 net/core/dev_api.c:67 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/5501: #0: ffffffff8fed7108 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #0: ffffffff8fed7108 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x34c/0x1d80 net/ipv4/devinet.c:1121 #1: ffff888064720d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2731 [inline] #1: ffff888064720d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:40 [inline] #1: ffff888064720d28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 net/core/dev_api.c:67 stack backtrace: CPU: 0 UID: 0 PID: 5501 Comm: dhcpcd Not tainted 6.14.0-rc7-syzkaller-01431-gbfc17c165835 #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:2731 [inline] netif_napi_add_weight include/linux/netdevice.h:2763 [inline] lapbeth_new_device drivers/net/wan/lapbether.c:415 [inline] lapbeth_device_event+0x766/0xa20 drivers/net/wan/lapbether.c:460 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85 __dev_notify_flags+0x207/0x400 netif_change_flags+0xf0/0x1a0 net/core/dev.c:9406 dev_change_flags+0x146/0x270 net/core/dev_api.c:68 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: 0033:0x7fc044ce0d49 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:00007ffcefdc9318 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fc044c126c0 RCX: 00007fc044ce0d49 RDX: 00007ffcefdd9508 RSI: 0000000000008914 RDI: 000000000000000f RBP: 00007ffcefde96c8 R08: 00007ffcefdd94c8 R09: 00007ffcefdd9478 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcefdd9508 R14: 0000000000000028 R15: 0000000000008914 Warning: Permanently added '10.128.0.53' (ED25519) to the list of known hosts. 2025/03/24 03:28:34 ignoring optional flag "sandboxArg"="0" 2025/03/24 03:28:36 parsed 1 programs [ 64.685820][ T5834] cgroup: Unknown subsys name 'net' [ 64.790991][ T5834] cgroup: Unknown subsys name 'cpuset' [ 64.798858][ T5834] cgroup: Unknown subsys name 'rlimit' [ 66.167089][ T5834] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 68.765620][ T5840] 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. [ 70.043359][ T55] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 70.052487][ T55] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 70.060808][ T55] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 70.071641][ T55] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 70.079643][ T55] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 70.086858][ T55] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 70.504260][ T5892] chnl_net:caif_netlink_parms(): no params data found [ 70.578176][ T5892] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.585330][ T5892] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.593743][ T5892] bridge_slave_0: entered allmulticast mode [ 70.600886][ T5892] bridge_slave_0: entered promiscuous mode [ 70.610204][ T5892] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.617352][ T5892] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.624951][ T5892] bridge_slave_1: entered allmulticast mode [ 70.631716][ T5892] bridge_slave_1: entered promiscuous mode [ 70.660827][ T5892] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.671688][ T5892] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.694666][ T5892] team0: Port device team_slave_0 added [ 70.703683][ T5892] team0: Port device team_slave_1 added [ 70.721616][ T5892] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.728863][ T5892] 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. [ 70.755424][ T5892] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.768733][ T5892] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.775717][ T5892] 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. [ 70.802276][ T5892] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.831475][ T5892] hsr_slave_0: entered promiscuous mode [ 70.838603][ T5892] hsr_slave_1: entered promiscuous mode [ 70.928402][ T5892] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.942119][ T5892] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.951807][ T5892] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.961958][ T5892] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.986316][ T5892] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.993531][ T5892] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.001851][ T5892] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.009028][ T5892] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.055379][ T5892] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.074508][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.084555][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.099750][ T5892] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.112023][ T1339] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.119353][ T1339] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.132694][ T3000] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.139839][ T3000] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.255058][ T5892] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.289117][ T5892] veth0_vlan: entered promiscuous mode [ 71.301490][ T5892] veth1_vlan: entered promiscuous mode [ 71.324403][ T5892] veth0_macvtap: entered promiscuous mode [ 71.333775][ T5892] veth1_macvtap: entered promiscuous mode [ 71.349959][ T5892] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.366113][ T5892] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.378078][ T5892] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.386888][ T5892] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.396223][ T5892] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.405405][ T5892] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.547080][ T3000] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.623680][ T3000] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.700697][ T3000] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.752082][ T1296] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.759087][ T1296] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.783493][ T3000] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.809245][ T69] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.818810][ T69] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.846424][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.854590][ T36] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2025/03/24 03:28:46 executed programs: 0 [ 72.793303][ T55] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 72.802192][ T55] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 72.812371][ T55] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 72.821970][ T55] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 72.831430][ T55] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 72.839033][ T55] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 72.951016][ T5938] chnl_net:caif_netlink_parms(): no params data found [ 73.013498][ T5938] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.021011][ T5938] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.029204][ T5938] bridge_slave_0: entered allmulticast mode [ 73.035771][ T5938] bridge_slave_0: entered promiscuous mode [ 73.044533][ T5938] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.052003][ T5938] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.059587][ T5938] bridge_slave_1: entered allmulticast mode [ 73.066275][ T5938] bridge_slave_1: entered promiscuous mode [ 73.092709][ T5938] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.103742][ T5938] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.134337][ T5938] team0: Port device team_slave_0 added [ 73.144787][ T5938] team0: Port device team_slave_1 added [ 73.166036][ T5938] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.173421][ T5938] 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. [ 73.200521][ T5938] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.213214][ T5938] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.220575][ T5938] 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. [ 73.246934][ T5938] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.281422][ T5938] hsr_slave_0: entered promiscuous mode [ 73.288692][ T5938] hsr_slave_1: entered promiscuous mode [ 73.294640][ T5938] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 73.302870][ T5938] Cannot create hsr debugfs directory [ 74.342226][ T3000] bridge_slave_1: left allmulticast mode [ 74.349867][ T3000] bridge_slave_1: left promiscuous mode [ 74.356542][ T3000] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.374079][ T3000] bridge_slave_0: left allmulticast mode [ 74.381041][ T3000] bridge_slave_0: left promiscuous mode [ 74.387122][ T3000] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.723134][ T3000] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 74.734026][ T3000] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 74.744646][ T3000] bond0 (unregistering): Released all slaves [ 74.773181][ T5501] [ 74.775538][ T5501] ============================================ [ 74.781679][ T5501] WARNING: possible recursive locking detected [ 74.787840][ T5501] 6.14.0-rc7-syzkaller-01431-gbfc17c165835 #0 Not tainted [ 74.794935][ T5501] -------------------------------------------- [ 74.801086][ T5501] dhcpcd/5501 is trying to acquire lock: [ 74.806720][ T5501] ffff888028508d28 (&dev->lock){+.+.}-{4:4}, at: lapbeth_device_event+0x766/0xa20 [ 74.815946][ T5501] [ 74.815946][ T5501] but task is already holding lock: [ 74.823292][ T5501] ffff888064720d28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 [ 74.832153][ T5501] [ 74.832153][ T5501] other info that might help us debug this: [ 74.840206][ T5501] Possible unsafe locking scenario: [ 74.840206][ T5501] [ 74.847703][ T5501] CPU0 [ 74.850976][ T5501] ---- [ 74.854261][ T5501] lock(&dev->lock); [ 74.858244][ T5501] lock(&dev->lock); [ 74.862322][ T5501] [ 74.862322][ T5501] *** DEADLOCK *** [ 74.862322][ T5501] [ 74.870483][ T5501] May be due to missing lock nesting notation [ 74.870483][ T5501] [ 74.878889][ T5501] 2 locks held by dhcpcd/5501: [ 74.883634][ T5501] #0: ffffffff8fed7108 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x34c/0x1d80 [ 74.892848][ T5501] #1: ffff888064720d28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 [ 74.902171][ T5501] [ 74.902171][ T5501] stack backtrace: [ 74.908057][ T5501] CPU: 0 UID: 0 PID: 5501 Comm: dhcpcd Not tainted 6.14.0-rc7-syzkaller-01431-gbfc17c165835 #0 [ 74.908072][ T5501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 74.908083][ T5501] Call Trace: [ 74.908089][ T5501] [ 74.908095][ T5501] dump_stack_lvl+0x241/0x360 [ 74.908112][ T5501] ? __pfx_dump_stack_lvl+0x10/0x10 [ 74.908124][ T5501] ? __pfx__printk+0x10/0x10 [ 74.908135][ T5501] ? lockdep_unlock+0x16a/0x300 [ 74.908155][ T5501] print_deadlock_bug+0x483/0x620 [ 74.908170][ T5501] validate_chain+0x15e2/0x5920 [ 74.908186][ T5501] ? is_bpf_text_address+0x26/0x2a0 [ 74.908199][ T5501] ? unwind_next_frame+0x18e6/0x22d0 [ 74.908217][ T5501] ? __pfx_validate_chain+0x10/0x10 [ 74.908230][ T5501] ? preempt_count_add+0x93/0x190 [ 74.908247][ T5501] ? is_bpf_text_address+0x285/0x2a0 [ 74.908257][ T5501] ? is_bpf_text_address+0x26/0x2a0 [ 74.908268][ T5501] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 74.908284][ T5501] ? kernel_text_address+0xa7/0xe0 [ 74.908297][ T5501] ? look_up_lock_class+0x77/0x170 [ 74.908314][ T5501] ? register_lock_class+0x102/0x980 [ 74.908332][ T5501] ? __pfx_register_lock_class+0x10/0x10 [ 74.908350][ T5501] ? mark_lock+0x9a/0x360 [ 74.908363][ T5501] __lock_acquire+0x1397/0x2100 [ 74.908384][ T5501] lock_acquire+0x1ed/0x550 [ 74.908400][ T5501] ? lapbeth_device_event+0x766/0xa20 [ 74.908416][ T5501] ? __pfx_lock_acquire+0x10/0x10 [ 74.908433][ T5501] ? __pfx___might_resched+0x10/0x10 [ 74.908452][ T5501] __mutex_lock+0x19c/0x1010 [ 74.908482][ T5501] ? lapbeth_device_event+0x766/0xa20 [ 74.908496][ T5501] ? __asan_memset+0x23/0x50 [ 74.908509][ T5501] ? lapbeth_device_event+0x766/0xa20 [ 74.908521][ T5501] ? __pfx___mutex_lock+0x10/0x10 [ 74.908541][ T5501] ? __raw_spin_lock_init+0x45/0x100 [ 74.908556][ T5501] lapbeth_device_event+0x766/0xa20 [ 74.908569][ T5501] notifier_call_chain+0x1a5/0x3f0 [ 74.908587][ T5501] __dev_notify_flags+0x207/0x400 [ 74.908601][ T5501] ? dev_set_rx_mode+0xb8/0x2e0 [ 74.908615][ T5501] ? __pfx___dev_notify_flags+0x10/0x10 [ 74.908628][ T5501] ? __dev_change_flags+0x515/0x6f0 [ 74.908641][ T5501] ? __pfx___mutex_lock+0x10/0x10 [ 74.908657][ T5501] ? __pfx___dev_change_flags+0x10/0x10 [ 74.908671][ T5501] ? __pfx___mutex_lock+0x10/0x10 [ 74.908687][ T5501] netif_change_flags+0xf0/0x1a0 [ 74.908702][ T5501] dev_change_flags+0x146/0x270 [ 74.908715][ T5501] devinet_ioctl+0xea2/0x1d80 [ 74.908731][ T5501] ? __pfx_devinet_ioctl+0x10/0x10 [ 74.908743][ T5501] ? get_user_ifreq+0x1bb/0x200 [ 74.908759][ T5501] inet_ioctl+0x3d7/0x4f0 [ 74.908774][ T5501] ? __pfx_inet_ioctl+0x10/0x10 [ 74.908789][ T5501] ? tomoyo_path_number_perm+0x5dd/0x770 [ 74.908813][ T5501] sock_do_ioctl+0x158/0x460 [ 74.908831][ T5501] ? __pfx_sock_do_ioctl+0x10/0x10 [ 74.908848][ T5501] ? __pfx_lock_release+0x10/0x10 [ 74.908873][ T5501] sock_ioctl+0x626/0x8e0 [ 74.908889][ T5501] ? __pfx_sock_ioctl+0x10/0x10 [ 74.908905][ T5501] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 74.908923][ T5501] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 74.908940][ T5501] ? __pfx_sock_ioctl+0x10/0x10 [ 74.908956][ T5501] __se_sys_ioctl+0xf5/0x170 [ 74.908970][ T5501] do_syscall_64+0xf3/0x230 [ 74.908987][ T5501] ? clear_bhb_loop+0x35/0x90 [ 74.909005][ T5501] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.909027][ T5501] RIP: 0033:0x7fc044ce0d49 [ 74.909043][ T5501] 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 [ 74.909053][ T5501] RSP: 002b:00007ffcefdc9318 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 74.909066][ T5501] RAX: ffffffffffffffda RBX: 00007fc044c126c0 RCX: 00007fc044ce0d49 [ 74.909075][ T5501] RDX: 00007ffcefdd9508 RSI: 0000000000008914 RDI: 000000000000000f [ 74.909083][ T5501] RBP: 00007ffcefde96c8 R08: 00007ffcefdd94c8 R09: 00007ffcefdd9478 [ 74.909091][ T5501] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.909098][ T5501] R13: 00007ffcefdd9508 R14: 0000000000000028 R15: 0000000000008914 [ 74.909110][ T5501] [ 75.305760][ T5145] Bluetooth: hci0: command tx timeout [ 75.357966][ T3000] hsr_slave_0: left promiscuous mode [ 75.363755][ T3000] hsr_slave_1: left promiscuous mode [ 75.372677][ T3000] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 75.380891][ T3000] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 75.389526][ T3000] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 75.397030][ T3000] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 75.410275][ T3000] veth1_macvtap: left promiscuous mode [ 75.416000][ T3000] veth0_macvtap: left promiscuous mode [ 75.422514][ T3000] veth1_vlan: left promiscuous mode [ 75.429086][ T3000] veth0_vlan: left promiscuous mode [ 75.582436][ T3000] team0 (unregistering): Port device team_slave_1 removed [ 75.601964][ T3000] team0 (unregistering): Port device team_slave_0 removed [ 75.953733][ T5938] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.982779][ T5938] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.004702][ T5938] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.017796][ T5938] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.073698][ T5938] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.091045][ T5938] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.101769][ T36] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.108920][ T36] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.132610][ T36] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.139757][ T36] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.160892][ T5938] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 76.172267][ T5938] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.278311][ T5938] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.314889][ T5938] veth0_vlan: entered promiscuous mode [ 76.325040][ T5938] veth1_vlan: entered promiscuous mode [ 76.345218][ T5938] veth0_macvtap: entered promiscuous mode [ 76.355291][ T5938] veth1_macvtap: entered promiscuous mode [ 76.372135][ T5938] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.385610][ T5938] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.396466][ T5938] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.405973][ T5938] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.415640][ T5938] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.424663][ T5938] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.458220][ T5938] ieee80211 phy5: Selected rate control algorithm 'minstrel_ht' [ 76.483922][ T13] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.488882][ T5938] ieee80211 phy6: Selected rate control algorithm 'minstrel_ht' [ 76.502116][ T13] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.522724][ T1339] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.530984][ T1339] 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='/syzkaller/jobs-2/linux/gopath/pkg/mod/golang.org/toolchain@v0.0.1-go1.23.6.linux-amd64' GOSUMDB='sum.golang.org' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/syzkaller/jobs-2/linux/gopath/pkg/mod/golang.org/toolchain@v0.0.1-go1.23.6.linux-amd64/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.23.6' GODEBUG='' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' 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-build4113874882=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at 831e362911 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 touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=831e3629115be4f5e68e6e0df3a5b07eed26daa4 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250305-205027'" -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=\"831e3629115be4f5e68e6e0df3a5b07eed26daa4\" /usr/bin/ld: /tmp/cc5kZsOO.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