possible deadlock in lapbeth_device_event ============================================ WARNING: possible recursive locking detected 6.14.0-syzkaller-07422-gacb4f33713b9 #0 Not tainted -------------------------------------------- dhcpcd/5494 is trying to acquire lock: ffff88802a9a8d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2751 [inline] ffff88802a9a8d28 (&dev->lock){+.+.}-{4:4}, at: netif_napi_add_weight include/linux/netdevice.h:2783 [inline] ffff88802a9a8d28 (&dev->lock){+.+.}-{4:4}, at: lapbeth_new_device drivers/net/wan/lapbether.c:415 [inline] ffff88802a9a8d28 (&dev->lock){+.+.}-{4:4}, at: lapbeth_device_event+0x766/0xa20 drivers/net/wan/lapbether.c:460 but task is already holding lock: ffff88802a1c0d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2751 [inline] ffff88802a1c0d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:42 [inline] ffff88802a1c0d28 (&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/5494: #0: ffffffff900cf5c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline] #0: ffffffff900cf5c8 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x34e/0x1d80 net/ipv4/devinet.c:1121 #1: ffff88802a1c0d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2751 [inline] #1: ffff88802a1c0d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:42 [inline] #1: ffff88802a1c0d28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 net/core/dev_api.c:67 stack backtrace: CPU: 1 UID: 0 PID: 5494 Comm: dhcpcd Not tainted 6.14.0-syzkaller-07422-gacb4f33713b9 #0 PREEMPT(full) 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+0x2be/0x2d0 kernel/locking/lockdep.c:3042 check_deadlock kernel/locking/lockdep.c:3094 [inline] validate_chain+0x928/0x24e0 kernel/locking/lockdep.c:3896 __lock_acquire+0xad5/0xd80 kernel/locking/lockdep.c:5235 lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866 __mutex_lock_common kernel/locking/mutex.c:587 [inline] __mutex_lock+0x1a5/0x10c0 kernel/locking/mutex.c:732 netdev_lock include/linux/netdevice.h:2751 [inline] netif_napi_add_weight include/linux/netdevice.h:2783 [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+0x209/0x410 net/core/dev.c:-1 netif_change_flags+0xf0/0x1a0 net/core/dev.c:9438 dev_change_flags+0x146/0x270 net/core/dev_api.c:68 devinet_ioctl+0xea4/0x1d80 net/ipv4/devinet.c:1200 inet_ioctl+0x3d9/0x4f0 net/ipv4/af_inet.c:1001 sock_do_ioctl+0x15a/0x490 net/socket.c:1190 sock_ioctl+0x644/0x900 net/socket.c:1311 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f470e69fd49 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:00007ffd32297098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f470e5d16c0 RCX: 00007f470e69fd49 RDX: 00007ffd322a7288 RSI: 0000000000008914 RDI: 0000000000000011 RBP: 00007ffd322b7448 R08: 00007ffd322a7248 R09: 00007ffd322a71f8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd322a7288 R14: 0000000000000028 R15: 0000000000008914 Warning: Permanently added '10.128.10.6' (ED25519) to the list of known hosts. 2025/03/28 04:48:41 ignoring optional flag "sandboxArg"="0" 2025/03/28 04:48:41 ignoring optional flag "type"="gce" 2025/03/28 04:48:41 parsed 1 programs [ 61.015242][ T5825] cgroup: Unknown subsys name 'net' [ 61.251513][ T5825] cgroup: Unknown subsys name 'cpuset' [ 61.260898][ T5825] cgroup: Unknown subsys name 'rlimit' [ 62.140535][ T5829] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 62.230964][ T2987] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.239020][ T2987] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.258384][ T2987] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.266988][ T2987] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.299884][ T5854] 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. [ 62.881494][ T5879] chnl_net:caif_netlink_parms(): no params data found [ 62.956875][ T5879] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.964064][ T5879] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.972506][ T5879] bridge_slave_0: entered allmulticast mode [ 62.979697][ T5879] bridge_slave_0: entered promiscuous mode [ 62.988724][ T5879] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.996015][ T5879] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.003589][ T5879] bridge_slave_1: entered allmulticast mode [ 63.010366][ T5879] bridge_slave_1: entered promiscuous mode [ 63.037165][ T5879] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.049519][ T5879] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.075708][ T5879] team0: Port device team_slave_0 added [ 63.083828][ T5879] team0: Port device team_slave_1 added [ 63.102807][ T5879] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.110058][ T5879] 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. [ 63.136153][ T5879] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.148296][ T5879] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.155281][ T5879] 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. [ 63.181210][ T5879] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 63.209800][ T5879] hsr_slave_0: entered promiscuous mode [ 63.216270][ T5879] hsr_slave_1: entered promiscuous mode [ 63.326639][ T5879] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.337291][ T5879] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.346423][ T5879] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.355757][ T5879] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.422369][ T5879] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.440845][ T5879] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.452234][ T3585] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.459505][ T3585] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.473197][ T3585] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.480296][ T3585] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.583393][ T5879] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.614021][ T5879] veth0_vlan: entered promiscuous mode [ 63.624590][ T5879] veth1_vlan: entered promiscuous mode [ 63.647985][ T5879] veth0_macvtap: entered promiscuous mode [ 63.656708][ T5879] veth1_macvtap: entered promiscuous mode [ 63.670878][ T5879] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.685204][ T5879] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.696543][ T5879] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.705344][ T5879] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.715146][ T5879] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.724546][ T5879] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.807435][ T5879] syz-executor.0 (5879) used greatest stack depth: 19616 bytes left [ 63.831268][ T3585] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.921797][ T3585] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.976195][ T3585] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.991067][ T5902] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 63.999866][ T5902] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 64.007962][ T5902] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 64.018385][ T5902] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 64.027959][ T5902] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 64.043523][ T3585] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2025/03/28 04:48:45 executed programs: 0 [ 64.800381][ T5140] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 64.808824][ T5140] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 64.819478][ T5140] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 64.830095][ T5140] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 64.837727][ T5140] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 64.930358][ T5931] chnl_net:caif_netlink_parms(): no params data found [ 64.969880][ T5931] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.977608][ T5931] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.984845][ T5931] bridge_slave_0: entered allmulticast mode [ 64.992076][ T5931] bridge_slave_0: entered promiscuous mode [ 65.000961][ T5931] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.008237][ T5931] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.015400][ T5931] bridge_slave_1: entered allmulticast mode [ 65.022186][ T5931] bridge_slave_1: entered promiscuous mode [ 65.042165][ T5931] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.053625][ T5931] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.078920][ T5931] team0: Port device team_slave_0 added [ 65.085985][ T5931] team0: Port device team_slave_1 added [ 65.103662][ T5931] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.110938][ T5931] 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. [ 65.137438][ T5931] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.149706][ T5931] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.157148][ T5931] 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. [ 65.183341][ T5931] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.215273][ T5931] hsr_slave_0: entered promiscuous mode [ 65.221610][ T5931] hsr_slave_1: entered promiscuous mode [ 65.227747][ T5931] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.235602][ T5931] Cannot create hsr debugfs directory [ 66.896948][ T5140] Bluetooth: hci0: command tx timeout [ 67.289688][ T3585] bridge_slave_1: left allmulticast mode [ 67.295491][ T3585] bridge_slave_1: left promiscuous mode [ 67.302220][ T3585] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.312367][ T3585] bridge_slave_0: left allmulticast mode [ 67.318133][ T3585] bridge_slave_0: left promiscuous mode [ 67.323795][ T3585] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.503630][ T3585] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 67.514347][ T3585] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 67.524092][ T3585] bond0 (unregistering): Released all slaves [ 67.592996][ T3585] hsr_slave_0: left promiscuous mode [ 67.599357][ T3585] hsr_slave_1: left promiscuous mode [ 67.605310][ T3585] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 67.615932][ T3585] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 67.625179][ T3585] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 67.634223][ T3585] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 67.651396][ T3585] veth1_macvtap: left promiscuous mode [ 67.657497][ T3585] veth0_macvtap: left promiscuous mode [ 67.663126][ T3585] veth1_vlan: left promiscuous mode [ 67.670248][ T3585] veth0_vlan: left promiscuous mode [ 67.960047][ T3585] team0 (unregistering): Port device team_slave_1 removed [ 67.986338][ T3585] team0 (unregistering): Port device team_slave_0 removed [ 68.188273][ T5494] [ 68.190645][ T5494] ============================================ [ 68.196795][ T5494] WARNING: possible recursive locking detected [ 68.202937][ T5494] 6.14.0-syzkaller-07422-gacb4f33713b9 #0 Not tainted [ 68.209680][ T5494] -------------------------------------------- [ 68.215804][ T5494] dhcpcd/5494 is trying to acquire lock: [ 68.221427][ T5494] ffff88802a9a8d28 (&dev->lock){+.+.}-{4:4}, at: lapbeth_device_event+0x766/0xa20 [ 68.230641][ T5494] [ 68.230641][ T5494] but task is already holding lock: [ 68.238010][ T5494] ffff88802a1c0d28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 [ 68.246873][ T5494] [ 68.246873][ T5494] other info that might help us debug this: [ 68.254950][ T5494] Possible unsafe locking scenario: [ 68.254950][ T5494] [ 68.262410][ T5494] CPU0 [ 68.265674][ T5494] ---- [ 68.268937][ T5494] lock(&dev->lock); [ 68.272926][ T5494] lock(&dev->lock); [ 68.276904][ T5494] [ 68.276904][ T5494] *** DEADLOCK *** [ 68.276904][ T5494] [ 68.285037][ T5494] May be due to missing lock nesting notation [ 68.285037][ T5494] [ 68.293345][ T5494] 2 locks held by dhcpcd/5494: [ 68.298092][ T5494] #0: ffffffff900cf5c8 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x34e/0x1d80 [ 68.307312][ T5494] #1: ffff88802a1c0d28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 [ 68.316642][ T5494] [ 68.316642][ T5494] stack backtrace: [ 68.322547][ T5494] CPU: 1 UID: 0 PID: 5494 Comm: dhcpcd Not tainted 6.14.0-syzkaller-07422-gacb4f33713b9 #0 PREEMPT(full) [ 68.322563][ T5494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 68.322574][ T5494] Call Trace: [ 68.322581][ T5494] [ 68.322587][ T5494] dump_stack_lvl+0x241/0x360 [ 68.322605][ T5494] ? __pfx_dump_stack_lvl+0x10/0x10 [ 68.322619][ T5494] ? __pfx__printk+0x10/0x10 [ 68.322633][ T5494] ? print_lock+0x171/0x1a0 [ 68.322645][ T5494] print_deadlock_bug+0x2be/0x2d0 [ 68.322658][ T5494] validate_chain+0x928/0x24e0 [ 68.322670][ T5494] ? stack_depot_save_flags+0x3a/0x970 [ 68.322691][ T5494] ? look_up_lock_class+0x7b/0x170 [ 68.322707][ T5494] ? register_lock_class+0x54/0x330 [ 68.322725][ T5494] __lock_acquire+0xad5/0xd80 [ 68.322743][ T5494] lock_acquire+0x116/0x2f0 [ 68.322759][ T5494] ? lapbeth_device_event+0x766/0xa20 [ 68.322779][ T5494] __mutex_lock+0x1a5/0x10c0 [ 68.322794][ T5494] ? lapbeth_device_event+0x766/0xa20 [ 68.322811][ T5494] ? ref_tracker_alloc+0x316/0x4c0 [ 68.322826][ T5494] ? lapbeth_device_event+0x766/0xa20 [ 68.322841][ T5494] ? rcu_is_watching+0x15/0xb0 [ 68.322853][ T5494] ? __pfx___mutex_lock+0x10/0x10 [ 68.322870][ T5494] ? __raw_spin_lock_init+0x45/0x100 [ 68.322884][ T5494] lapbeth_device_event+0x766/0xa20 [ 68.322902][ T5494] notifier_call_chain+0x1a5/0x3f0 [ 68.322915][ T5494] __dev_notify_flags+0x209/0x410 [ 68.322928][ T5494] ? __pfx___dev_notify_flags+0x10/0x10 [ 68.322939][ T5494] ? __dev_change_flags+0x517/0x700 [ 68.322950][ T5494] ? __pfx___mutex_lock+0x10/0x10 [ 68.322965][ T5494] ? __pfx___dev_change_flags+0x10/0x10 [ 68.322976][ T5494] ? __pfx___mutex_lock+0x10/0x10 [ 68.322992][ T5494] netif_change_flags+0xf0/0x1a0 [ 68.323004][ T5494] dev_change_flags+0x146/0x270 [ 68.323022][ T5494] devinet_ioctl+0xea4/0x1d80 [ 68.323042][ T5494] ? __pfx_devinet_ioctl+0x10/0x10 [ 68.323058][ T5494] ? get_user_ifreq+0x1bb/0x200 [ 68.323073][ T5494] inet_ioctl+0x3d9/0x4f0 [ 68.323085][ T5494] ? __pfx_inet_ioctl+0x10/0x10 [ 68.323097][ T5494] ? lockdep_hardirqs_on+0x9d/0x150 [ 68.323116][ T5494] ? tomoyo_path_number_perm+0x215/0x790 [ 68.323129][ T5494] sock_do_ioctl+0x15a/0x490 [ 68.323145][ T5494] ? __pfx_sock_do_ioctl+0x10/0x10 [ 68.323161][ T5494] ? fd_install+0x9c/0x4c0 [ 68.323173][ T5494] ? __asan_memset+0x23/0x50 [ 68.323188][ T5494] ? smack_file_ioctl+0x2a7/0x3b0 [ 68.323207][ T5494] sock_ioctl+0x644/0x900 [ 68.323221][ T5494] ? __pfx_sock_ioctl+0x10/0x10 [ 68.323235][ T5494] ? __sys_socket+0x209/0x3c0 [ 68.323252][ T5494] ? __pfx_sock_ioctl+0x10/0x10 [ 68.323266][ T5494] __se_sys_ioctl+0xf1/0x160 [ 68.323283][ T5494] do_syscall_64+0xf3/0x230 [ 68.323299][ T5494] ? clear_bhb_loop+0x45/0xa0 [ 68.323312][ T5494] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.323328][ T5494] RIP: 0033:0x7f470e69fd49 [ 68.323344][ T5494] 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 [ 68.323354][ T5494] RSP: 002b:00007ffd32297098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 68.323367][ T5494] RAX: ffffffffffffffda RBX: 00007f470e5d16c0 RCX: 00007f470e69fd49 [ 68.323376][ T5494] RDX: 00007ffd322a7288 RSI: 0000000000008914 RDI: 0000000000000011 [ 68.323384][ T5494] RBP: 00007ffd322b7448 R08: 00007ffd322a7248 R09: 00007ffd322a71f8 [ 68.323393][ T5494] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 68.323400][ T5494] R13: 00007ffd322a7288 R14: 0000000000000028 R15: 0000000000008914 [ 68.323411][ T5494] [ 68.854976][ T5931] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.870103][ T5931] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.884231][ T5931] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.893760][ T5931] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.953006][ T5931] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.970459][ T5931] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.981856][ T2987] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.986820][ T5140] Bluetooth: hci0: command tx timeout [ 68.988989][ T2987] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.008270][ T2987] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.015472][ T2987] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.134687][ T5931] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.164115][ T5931] veth0_vlan: entered promiscuous mode [ 69.175771][ T5931] veth1_vlan: entered promiscuous mode [ 69.199060][ T5931] veth0_macvtap: entered promiscuous mode [ 69.208391][ T5931] veth1_macvtap: entered promiscuous mode [ 69.223893][ T5931] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.235768][ T5931] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.245766][ T5931] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.254992][ T5931] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.266536][ T5931] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.275274][ T5931] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.308883][ T5931] ieee80211 phy5: Selected rate control algorithm 'minstrel_ht' [ 69.331343][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.333062][ T5931] ieee80211 phy6: Selected rate control algorithm 'minstrel_ht' [ 69.348254][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.371853][ T56] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.380824][ T56] 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-build3511342177=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at 8f98448ed3 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=8f98448ed32de3ed37dd5bed05414b81e16e7437 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240523-081324'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=8f98448ed32de3ed37dd5bed05414b81e16e7437 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240523-081324'" "-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++14 -I. -Iexecutor/_include -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"8f98448ed32de3ed37dd5bed05414b81e16e7437\"