possible deadlock in ieee80211_remove_interfaces ====================================================== WARNING: possible circular locking dependency detected 6.13.0-rc7-syzkaller-g7d2eba0f83a5-dirty #0 Not tainted ------------------------------------------------------ kworker/u8:1/12 is trying to acquire lock: ffffffff8fcb4bc8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_acquire_if_cleanup_net net/core/dev.c:10268 [inline] ffffffff8fcb4bc8 (rtnl_mutex){+.+.}-{4:4}, at: unregister_netdevice_many_notify+0xac2/0x2030 net/core/dev.c:11770 but task is already holding lock: ffff88807c700768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6034 [inline] ffff88807c700768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0x129/0x700 net/mac80211/iface.c:2276 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&rdev->wiphy.mtx){+.+.}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 __mutex_lock_common kernel/locking/mutex.c:585 [inline] __mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735 wiphy_lock include/net/cfg80211.h:6019 [inline] wiphy_register+0x1a49/0x27b0 net/wireless/core.c:1006 ieee80211_register_hw+0x30fb/0x3e10 net/mac80211/main.c:1582 mac80211_hwsim_new_radio+0x2a9f/0x4a90 drivers/net/wireless/virtual/mac80211_hwsim.c:5558 init_mac80211_hwsim+0x87a/0xb00 drivers/net/wireless/virtual/mac80211_hwsim.c:6910 do_one_initcall+0x248/0x870 init/main.c:1266 do_initcall_level+0x157/0x210 init/main.c:1328 do_initcalls+0x3f/0x80 init/main.c:1344 kernel_init_freeable+0x435/0x5d0 init/main.c:1577 kernel_init+0x1d/0x2b0 init/main.c:1466 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 -> #0 (rtnl_mutex){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 __mutex_lock_common kernel/locking/mutex.c:585 [inline] __mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735 rtnl_acquire_if_cleanup_net net/core/dev.c:10268 [inline] unregister_netdevice_many_notify+0xac2/0x2030 net/core/dev.c:11770 unregister_netdevice_many net/core/dev.c:11853 [inline] unregister_netdevice_queue+0x303/0x370 net/core/dev.c:11719 unregister_netdevice include/linux/netdevice.h:3320 [inline] _cfg80211_unregister_wdev+0x163/0x590 net/wireless/core.c:1251 ieee80211_remove_interfaces+0x4ef/0x700 net/mac80211/iface.c:2301 ieee80211_unregister_hw+0x5d/0x2c0 net/mac80211/main.c:1676 mac80211_hwsim_del_radio+0x2c4/0x4c0 drivers/net/wireless/virtual/mac80211_hwsim.c:5664 hwsim_exit_net+0x5c1/0x670 drivers/net/wireless/virtual/mac80211_hwsim.c:6544 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x812/0xd60 net/core/net_namespace.c:652 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317 worker_thread+0x870/0xd30 kernel/workqueue.c:3398 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&rdev->wiphy.mtx); lock(rtnl_mutex); lock(&rdev->wiphy.mtx); lock(rtnl_mutex); *** DEADLOCK *** 4 locks held by kworker/u8:1/12: #0: ffff88801baf5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3211 [inline] #0: ffff88801baf5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3317 #1: ffffc90000117d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3212 [inline] #1: ffffc90000117d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3317 #2: ffffffff8fca8610 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x17a/0xd60 net/core/net_namespace.c:606 #3: ffff88807c700768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6034 [inline] #3: ffff88807c700768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0x129/0x700 net/mac80211/iface.c:2276 stack backtrace: CPU: 1 UID: 0 PID: 12 Comm: kworker/u8:1 Not tainted 6.13.0-rc7-syzkaller-g7d2eba0f83a5-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2074 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2206 check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 __mutex_lock_common kernel/locking/mutex.c:585 [inline] __mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735 rtnl_acquire_if_cleanup_net net/core/dev.c:10268 [inline] unregister_netdevice_many_notify+0xac2/0x2030 net/core/dev.c:11770 unregister_netdevice_many net/core/dev.c:11853 [inline] unregister_netdevice_queue+0x303/0x370 net/core/dev.c:11719 unregister_netdevice include/linux/netdevice.h:3320 [inline] _cfg80211_unregister_wdev+0x163/0x590 net/wireless/core.c:1251 ieee80211_remove_interfaces+0x4ef/0x700 net/mac80211/iface.c:2301 ieee80211_unregister_hw+0x5d/0x2c0 net/mac80211/main.c:1676 mac80211_hwsim_del_radio+0x2c4/0x4c0 drivers/net/wireless/virtual/mac80211_hwsim.c:5664 hwsim_exit_net+0x5c1/0x670 drivers/net/wireless/virtual/mac80211_hwsim.c:6544 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x812/0xd60 net/core/net_namespace.c:652 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317 worker_thread+0x870/0xd30 kernel/workqueue.c:3398 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 bridge0: port 1(bridge_slave_0) entered disabled state bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 bridge_slave_1: left allmulticast mode bridge_slave_1: left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge_slave_0: left allmulticast mode bridge_slave_0: left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): Released all slaves hsr_slave_0: left promiscuous mode hsr_slave_1: left promiscuous mode batman_adv: batadv0: Interface deactivated: batadv_slave_0 batman_adv: batadv0: Removing interface: batadv_slave_0 batman_adv: batadv0: Interface deactivated: batadv_slave_1 batman_adv: batadv0: Removing interface: batadv_slave_1 veth1_macvtap: left promiscuous mode veth0_macvtap: left promiscuous mode veth1_vlan: left promiscuous mode veth0_vlan: left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed Warning: Permanently added '10.128.10.25' (ED25519) to the list of known hosts. 2025/01/17 22:39:11 ignoring optional flag "sandboxArg"="0" 2025/01/17 22:39:12 parsed 1 programs [ 75.884735][ T5829] cgroup: Unknown subsys name 'net' [ 76.021033][ T5829] cgroup: Unknown subsys name 'cpuset' [ 76.030686][ T5829] cgroup: Unknown subsys name 'rlimit' [ 77.427924][ T5829] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 80.010979][ T5839] 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. [ 80.923641][ T54] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 80.938367][ T54] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 80.947213][ T54] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 80.956013][ T54] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 80.963965][ T54] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 80.971581][ T54] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 81.233462][ T1118] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.242524][ T1118] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.272854][ T1118] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.281099][ T1118] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.641884][ T12] [ 81.644328][ T12] ====================================================== [ 81.651458][ T12] WARNING: possible circular locking dependency detected [ 81.658775][ T12] 6.13.0-rc7-syzkaller-g7d2eba0f83a5-dirty #0 Not tainted [ 81.665915][ T12] ------------------------------------------------------ [ 81.672958][ T12] kworker/u8:1/12 is trying to acquire lock: [ 81.678952][ T12] ffffffff8fcb4bc8 (rtnl_mutex){+.+.}-{4:4}, at: unregister_netdevice_many_notify+0xac2/0x2030 [ 81.689730][ T12] [ 81.689730][ T12] but task is already holding lock: [ 81.697283][ T12] ffff88807c700768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0x129/0x700 [ 81.707832][ T12] [ 81.707832][ T12] which lock already depends on the new lock. [ 81.707832][ T12] [ 81.718838][ T12] [ 81.718838][ T12] the existing dependency chain (in reverse order) is: [ 81.727987][ T12] [ 81.727987][ T12] -> #1 (&rdev->wiphy.mtx){+.+.}-{4:4}: [ 81.735742][ T12] lock_acquire+0x1ed/0x550 [ 81.740780][ T12] __mutex_lock+0x1ac/0xee0 [ 81.745800][ T12] wiphy_register+0x1a49/0x27b0 [ 81.751177][ T12] ieee80211_register_hw+0x30fb/0x3e10 [ 81.757519][ T12] mac80211_hwsim_new_radio+0x2a9f/0x4a90 [ 81.764047][ T12] init_mac80211_hwsim+0x87a/0xb00 [ 81.770305][ T12] do_one_initcall+0x248/0x870 [ 81.775881][ T12] do_initcall_level+0x157/0x210 [ 81.781338][ T12] do_initcalls+0x3f/0x80 [ 81.786353][ T12] kernel_init_freeable+0x435/0x5d0 [ 81.792335][ T12] kernel_init+0x1d/0x2b0 [ 81.797196][ T12] ret_from_fork+0x4b/0x80 [ 81.802309][ T12] ret_from_fork_asm+0x1a/0x30 [ 81.807590][ T12] [ 81.807590][ T12] -> #0 (rtnl_mutex){+.+.}-{4:4}: [ 81.814816][ T12] validate_chain+0x18ef/0x5920 [ 81.820304][ T12] __lock_acquire+0x1397/0x2100 [ 81.825758][ T12] lock_acquire+0x1ed/0x550 [ 81.830943][ T12] __mutex_lock+0x1ac/0xee0 [ 81.835957][ T12] unregister_netdevice_many_notify+0xac2/0x2030 [ 81.842806][ T12] unregister_netdevice_queue+0x303/0x370 [ 81.849078][ T12] _cfg80211_unregister_wdev+0x163/0x590 [ 81.855239][ T12] ieee80211_remove_interfaces+0x4ef/0x700 [ 81.861563][ T12] ieee80211_unregister_hw+0x5d/0x2c0 [ 81.867545][ T12] mac80211_hwsim_del_radio+0x2c4/0x4c0 [ 81.873901][ T12] hwsim_exit_net+0x5c1/0x670 [ 81.879122][ T12] cleanup_net+0x812/0xd60 [ 81.884250][ T12] process_scheduled_works+0xa66/0x1840 [ 81.890462][ T12] worker_thread+0x870/0xd30 [ 81.895745][ T12] kthread+0x2f0/0x390 [ 81.900334][ T12] ret_from_fork+0x4b/0x80 [ 81.905466][ T12] ret_from_fork_asm+0x1a/0x30 [ 81.910932][ T12] [ 81.910932][ T12] other info that might help us debug this: [ 81.910932][ T12] [ 81.921234][ T12] Possible unsafe locking scenario: [ 81.921234][ T12] [ 81.928769][ T12] CPU0 CPU1 [ 81.934380][ T12] ---- ---- [ 81.939834][ T12] lock(&rdev->wiphy.mtx); [ 81.944340][ T12] lock(rtnl_mutex); [ 81.951016][ T12] lock(&rdev->wiphy.mtx); [ 81.958128][ T12] lock(rtnl_mutex); [ 81.962194][ T12] [ 81.962194][ T12] *** DEADLOCK *** [ 81.962194][ T12] [ 81.970426][ T12] 4 locks held by kworker/u8:1/12: [ 81.975637][ T12] #0: ffff88801baf5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 [ 81.987022][ T12] #1: ffffc90000117d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 [ 81.997903][ T12] #2: ffffffff8fca8610 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x17a/0xd60 [ 82.007451][ T12] #3: ffff88807c700768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0x129/0x700 [ 82.018264][ T12] [ 82.018264][ T12] stack backtrace: [ 82.024405][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u8:1 Not tainted 6.13.0-rc7-syzkaller-g7d2eba0f83a5-dirty #0 [ 82.035632][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 82.046062][ T12] Workqueue: netns cleanup_net [ 82.050934][ T12] Call Trace: [ 82.054306][ T12] [ 82.057233][ T12] dump_stack_lvl+0x241/0x360 [ 82.061909][ T12] ? __pfx_dump_stack_lvl+0x10/0x10 [ 82.067119][ T12] ? __pfx__printk+0x10/0x10 [ 82.071806][ T12] print_circular_bug+0x13a/0x1b0 [ 82.076856][ T12] check_noncircular+0x36a/0x4a0 [ 82.081804][ T12] ? __pfx_check_noncircular+0x10/0x10 [ 82.087375][ T12] ? lockdep_lock+0x123/0x2b0 [ 82.092181][ T12] validate_chain+0x18ef/0x5920 [ 82.097150][ T12] ? __lock_acquire+0x1397/0x2100 [ 82.102523][ T12] ? __pfx_validate_chain+0x10/0x10 [ 82.107864][ T12] ? mark_lock+0x9a/0x360 [ 82.112290][ T12] ? mark_lock+0x9a/0x360 [ 82.116720][ T12] ? __lock_acquire+0x1397/0x2100 [ 82.122039][ T12] ? mark_lock+0x9a/0x360 [ 82.126492][ T12] __lock_acquire+0x1397/0x2100 [ 82.131556][ T12] lock_acquire+0x1ed/0x550 [ 82.136528][ T12] ? unregister_netdevice_many_notify+0xac2/0x2030 [ 82.143383][ T12] ? __pfx_lock_acquire+0x10/0x10 [ 82.148606][ T12] ? __pfx___might_resched+0x10/0x10 [ 82.153895][ T12] ? finish_wait+0xd4/0x1e0 [ 82.158497][ T12] __mutex_lock+0x1ac/0xee0 [ 82.163094][ T12] ? unregister_netdevice_many_notify+0xac2/0x2030 [ 82.169881][ T12] ? unregister_netdevice_many_notify+0xac2/0x2030 [ 82.177576][ T12] ? __pfx___mutex_lock+0x10/0x10 [ 82.182810][ T12] ? __pfx___might_resched+0x10/0x10 [ 82.188653][ T12] ? unregister_netdevice_many_notify+0x9fa/0x2030 [ 82.196053][ T12] ? unregister_netdevice_many_notify+0x9fa/0x2030 [ 82.204430][ T12] unregister_netdevice_many_notify+0xac2/0x2030 [ 82.211783][ T12] ? mark_lock+0x9a/0x360 [ 82.218123][ T12] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 82.225410][ T12] ? kernfs_remove_by_name_ns+0x11b/0x160 [ 82.232084][ T12] ? __pfx_lock_release+0x10/0x10 [ 82.237982][ T12] unregister_netdevice_queue+0x303/0x370 [ 82.244005][ T12] ? __pfx_up_write+0x10/0x10 [ 82.249337][ T12] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 82.256758][ T12] ? kernfs_remove_by_name_ns+0x11b/0x160 [ 82.262950][ T12] _cfg80211_unregister_wdev+0x163/0x590 [ 82.268619][ T12] ieee80211_remove_interfaces+0x4ef/0x700 [ 82.274421][ T12] ? __pfx_ieee80211_remove_interfaces+0x10/0x10 [ 82.280764][ T12] ? rcu_is_watching+0x15/0xb0 [ 82.285736][ T12] ieee80211_unregister_hw+0x5d/0x2c0 [ 82.291113][ T12] mac80211_hwsim_del_radio+0x2c4/0x4c0 [ 82.296841][ T12] ? __pfx_mac80211_hwsim_del_radio+0x10/0x10 [ 82.302996][ T12] hwsim_exit_net+0x5c1/0x670 [ 82.307857][ T12] ? __pfx_hwsim_exit_net+0x10/0x10 [ 82.313052][ T12] ? __ip_vs_dev_cleanup_batch+0x239/0x260 [ 82.318853][ T12] cleanup_net+0x812/0xd60 [ 82.323348][ T12] ? __pfx_cleanup_net+0x10/0x10 [ 82.328459][ T12] ? process_scheduled_works+0x976/0x1840 [ 82.334186][ T12] process_scheduled_works+0xa66/0x1840 [ 82.340033][ T12] ? __pfx_process_scheduled_works+0x10/0x10 [ 82.346032][ T12] ? assign_work+0x364/0x3d0 [ 82.350780][ T12] worker_thread+0x870/0xd30 [ 82.355485][ T12] ? __kthread_parkme+0x169/0x1d0 [ 82.360702][ T12] ? __pfx_worker_thread+0x10/0x10 [ 82.365905][ T12] kthread+0x2f0/0x390 [ 82.370021][ T12] ? __pfx_worker_thread+0x10/0x10 [ 82.375557][ T12] ? __pfx_kthread+0x10/0x10 [ 82.380247][ T12] ret_from_fork+0x4b/0x80 [ 82.385063][ T12] ? __pfx_kthread+0x10/0x10 [ 82.390750][ T12] ret_from_fork_asm+0x1a/0x30 [ 82.395828][ T12] [ 82.542936][ T5885] chnl_net:caif_netlink_parms(): no params data found [ 82.595427][ T5885] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.602952][ T5885] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.610856][ T5885] bridge_slave_0: entered allmulticast mode [ 82.617351][ T5885] bridge_slave_0: entered promiscuous mode [ 82.626622][ T5885] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.647855][ T5885] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.655166][ T5885] bridge_slave_1: entered allmulticast mode [ 82.662522][ T5885] bridge_slave_1: entered promiscuous mode [ 82.702814][ T5885] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 82.720451][ T5885] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 82.756598][ T5885] team0: Port device team_slave_0 added [ 82.763734][ T5885] team0: Port device team_slave_1 added [ 82.779449][ T5885] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 82.786454][ T5885] 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. [ 82.812995][ T5885] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 82.825692][ T5885] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 82.833093][ T5885] 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. [ 82.859797][ T5885] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 82.885866][ T5885] hsr_slave_0: entered promiscuous mode [ 82.892035][ T5885] hsr_slave_1: entered promiscuous mode [ 82.959123][ T5885] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.968186][ T5885] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.977035][ T5885] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.986564][ T5885] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 83.002793][ T5885] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.010002][ T5885] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.017368][ T5885] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.024677][ T5885] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.054973][ T5885] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.068671][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.076191][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.088383][ T5885] 8021q: adding VLAN 0 to HW filter on device team0 [ 83.098860][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.106401][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.118381][ T1118] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.125634][ T1118] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.206642][ T5885] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.230876][ T5885] veth0_vlan: entered promiscuous mode [ 83.240856][ T5885] veth1_vlan: entered promiscuous mode [ 83.258075][ T5885] veth0_macvtap: entered promiscuous mode [ 83.266011][ T5885] veth1_macvtap: entered promiscuous mode [ 83.278369][ T5885] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.289877][ T5885] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 83.300258][ T5885] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.309175][ T5885] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.318991][ T5885] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.328324][ T5885] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.404936][ T12] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.471202][ T12] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.531374][ T12] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.620897][ T12] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2025/01/17 22:39:23 executed programs: 0 [ 84.375280][ T5144] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 84.383272][ T5144] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 84.392293][ T5144] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 84.402094][ T5144] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 84.410332][ T5144] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 84.419969][ T5144] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 84.507693][ T5925] chnl_net:caif_netlink_parms(): no params data found [ 84.545209][ T5925] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.552607][ T5925] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.560492][ T5925] bridge_slave_0: entered allmulticast mode [ 84.567301][ T5925] bridge_slave_0: entered promiscuous mode [ 84.578540][ T5925] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.585717][ T5925] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.593503][ T5925] bridge_slave_1: entered allmulticast mode [ 84.601344][ T5925] bridge_slave_1: entered promiscuous mode [ 84.618613][ T5925] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 84.630366][ T5925] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 84.652873][ T5925] team0: Port device team_slave_0 added [ 84.660309][ T5925] team0: Port device team_slave_1 added [ 84.678153][ T5925] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 84.685558][ T5925] 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. [ 84.712522][ T5925] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 84.724766][ T5925] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 84.732171][ T5925] 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. [ 84.758726][ T5925] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 84.790147][ T5925] hsr_slave_0: entered promiscuous mode [ 84.797046][ T5925] hsr_slave_1: entered promiscuous mode [ 84.804403][ T5925] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 84.813097][ T5925] Cannot create hsr debugfs directory [ 86.467761][ T5144] Bluetooth: hci0: command tx timeout [ 86.721515][ T12] bridge_slave_1: left allmulticast mode [ 86.727224][ T12] bridge_slave_1: left promiscuous mode [ 86.733695][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 86.745772][ T12] bridge_slave_0: left allmulticast mode [ 86.752357][ T12] bridge_slave_0: left promiscuous mode [ 86.758248][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 86.881915][ T12] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 86.892712][ T12] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 86.902445][ T12] bond0 (unregistering): Released all slaves [ 87.038744][ T12] hsr_slave_0: left promiscuous mode [ 87.045682][ T12] hsr_slave_1: left promiscuous mode [ 87.052796][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 87.063357][ T12] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 87.072424][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 87.080060][ T12] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 87.090325][ T12] veth1_macvtap: left promiscuous mode [ 87.096448][ T12] veth0_macvtap: left promiscuous mode [ 87.102288][ T12] veth1_vlan: left promiscuous mode [ 87.108430][ T12] veth0_vlan: left promiscuous mode [ 87.190619][ T12] team0 (unregistering): Port device team_slave_1 removed [ 87.207881][ T12] team0 (unregistering): Port device team_slave_0 removed [ 87.301161][ T5925] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 87.311124][ T5925] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 87.330197][ T5925] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 87.340056][ T5925] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 87.397421][ T5925] 8021q: adding VLAN 0 to HW filter on device bond0 [ 87.415057][ T5925] 8021q: adding VLAN 0 to HW filter on device team0 [ 87.429261][ T1118] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.436676][ T1118] bridge0: port 1(bridge_slave_0) entered forwarding state [ 87.454089][ T1118] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.461367][ T1118] bridge0: port 2(bridge_slave_1) entered forwarding state [ 87.644346][ T5925] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 87.679230][ T5925] veth0_vlan: entered promiscuous mode [ 87.691565][ T5925] veth1_vlan: entered promiscuous mode [ 87.720588][ T5925] veth0_macvtap: entered promiscuous mode [ 87.728577][ T5925] veth1_macvtap: entered promiscuous mode [ 87.740006][ T5925] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 87.747896][ T8] cfg80211: failed to load regulatory.db [ 87.759641][ T5925] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 87.770385][ T5925] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.781510][ T5925] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.791608][ T5925] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.800982][ T5925] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.838114][ T5925] ieee80211 phy5: Selected rate control algorithm 'minstrel_ht' [ 87.859643][ T5925] ieee80211 phy6: Selected rate control algorithm 'minstrel_ht' [ 87.860545][ T1109] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.877925][ T1109] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 87.896004][ T1118] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.908477][ T1118] 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-build1458789711=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at 953d1c45a1 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=953d1c45a16b7284725e337b47369a8ab111bab4 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250117-101744'" "-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 -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"953d1c45a16b7284725e337b47369a8ab111bab4\" /usr/bin/ld: /tmp/ccGJRSxw.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