Warning: Permanently added '10.128.1.26' (ED25519) to the list of known hosts. 2025/09/06 11:56:37 parsed 1 programs [ 70.000819][ T3502] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 73.000520][ T3570] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 73.009393][ T3570] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 73.017581][ T3570] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 73.025404][ T3570] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 78.252029][ T63] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.260109][ T63] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.275308][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.283173][ T12] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2025/09/06 11:56:47 executed programs: 0 [ 80.260612][ T4441] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 80.269590][ T4441] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 80.277519][ T4441] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 80.285706][ T4441] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 83.884978][ T36] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.893001][ T36] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.903719][ T64] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.911565][ T64] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2025/09/06 11:56:52 executed programs: 2 [ 83.994383][ T5086] netlink: 8 bytes leftover after parsing attributes in process `syz.2.17'. [ 84.043915][ T5086] netdevsim netdevsim2 netdevsim0: entered promiscuous mode [ 84.051334][ T5086] macsec0: entered allmulticast mode [ 84.056784][ T5086] netdevsim netdevsim2 netdevsim0: entered allmulticast mode [ 84.065363][ T5093] [ 84.067677][ T5093] ============================================ [ 84.073804][ T5093] WARNING: possible recursive locking detected [ 84.079934][ T5093] syzkaller #0 Not tainted [ 84.084333][ T5093] -------------------------------------------- [ 84.090454][ T5093] syz.2.17/5093 is trying to acquire lock: [ 84.096229][ T5093] ffff8881213fcce8 (&dev_instance_lock_key#8){+.+.}-{4:4}, at: __netdev_update_features+0x811/0x10b0 [ 84.107104][ T5093] [ 84.107104][ T5093] but task is already holding lock: [ 84.114539][ T5093] ffff8881213fcce8 (&dev_instance_lock_key#8){+.+.}-{4:4}, at: dev_ethtool+0x4f9/0x1310 [ 84.124256][ T5093] and the lock comparison function returns 0: [ 84.130291][ T5093] [ 84.130291][ T5093] other info that might help us debug this: [ 84.138323][ T5093] Possible unsafe locking scenario: [ 84.138323][ T5093] [ 84.145748][ T5093] CPU0 [ 84.149002][ T5093] ---- [ 84.152264][ T5093] lock(&dev_instance_lock_key#8); [ 84.157548][ T5093] lock(&dev_instance_lock_key#8); [ 84.162838][ T5093] [ 84.162838][ T5093] *** DEADLOCK *** [ 84.162838][ T5093] [ 84.170964][ T5093] May be due to missing lock nesting notation [ 84.170964][ T5093] [ 84.179269][ T5093] 2 locks held by syz.2.17/5093: [ 84.184272][ T5093] #0: ffffffff84179bc0 (rtnl_mutex){+.+.}-{4:4}, at: dev_ethtool+0xf0/0x1310 [ 84.193136][ T5093] #1: ffff8881213fcce8 (&dev_instance_lock_key#8){+.+.}-{4:4}, at: dev_ethtool+0x4f9/0x1310 [ 84.203279][ T5093] [ 84.203279][ T5093] stack backtrace: [ 84.209448][ T5093] CPU: 0 UID: 0 PID: 5093 Comm: syz.2.17 Not tainted syzkaller #0 PREEMPT(undef) [ 84.209457][ T5093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 84.209465][ T5093] Call Trace: [ 84.209469][ T5093] [ 84.209473][ T5093] dump_stack_lvl+0x128/0x1c0 [ 84.209482][ T5093] print_deadlock_bug+0x210/0x220 [ 84.209490][ T5093] __lock_acquire+0x1084/0x20e0 [ 84.209520][ T5093] ? debug_check_no_obj_freed+0xfd/0x260 [ 84.209530][ T5093] ? __wake_up+0x22/0xc0 [ 84.209537][ T5093] ? __netdev_update_features+0x811/0x10b0 [ 84.209548][ T5093] lock_acquire+0xe9/0x270 [ 84.209558][ T5093] ? __netdev_update_features+0x811/0x10b0 [ 84.209568][ T5093] ? cfg80211_netdev_notifier_call+0xd6/0x730 [ 84.209576][ T5093] ? _raw_spin_unlock_irqrestore+0x69/0xb0 [ 84.209587][ T5093] ? __netdev_update_features+0x811/0x10b0 [ 84.209596][ T5093] __mutex_lock+0xab/0xb20 [ 84.209607][ T5093] ? __netdev_update_features+0x811/0x10b0 [ 84.209618][ T5093] __netdev_update_features+0x811/0x10b0 [ 84.209628][ T5093] ? __pfx_macsec_notify+0x10/0x10 [ 84.209637][ T5093] netdev_update_features+0x29/0xd0 [ 84.209644][ T5093] ? __pfx_macsec_notify+0x10/0x10 [ 84.209653][ T5093] macsec_notify+0x17c/0x2d0 [ 84.209661][ T5093] ? __pfx_macsec_notify+0x10/0x10 [ 84.209669][ T5093] notifier_call_chain+0xce/0x200 [ 84.209677][ T5093] netdev_features_change+0x86/0xb0 [ 84.209684][ T5093] dev_ethtool+0x1069/0x1310 [ 84.209696][ T5093] ? dev_load+0x21/0x1f0 [ 84.209707][ T5093] dev_ioctl+0x2c6/0x970 [ 84.209717][ T5093] sock_do_ioctl+0x1ae/0x230 [ 84.209724][ T5093] sock_ioctl+0x474/0x5f0 [ 84.209731][ T5093] ? __pfx_sock_ioctl+0x10/0x10 [ 84.209737][ T5093] __se_sys_ioctl+0xb9/0x130 [ 84.209747][ T5093] do_syscall_64+0xa4/0x180 [ 84.209755][ T5093] ? clear_bhb_loop+0x60/0xb0 [ 84.209763][ T5093] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.209770][ T5093] RIP: 0033:0x7fd51e21ebe9 [ 84.209781][ T5093] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 84.209787][ T5093] RSP: 002b:00007fd51e066038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 84.209794][ T5093] RAX: ffffffffffffffda RBX: 00007fd51e456090 RCX: 00007fd51e21ebe9 [ 84.209799][ T5093] RDX: 0000200000000080 RSI: 0000000000008946 RDI: 0000000000000006 [ 84.209803][ T5093] RBP: 00007fd51e2a1e19 R08: 0000000000000000 R09: 0000000000000000 [ 84.209807][ T5093] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 84.209812][ T5093] R13: 00007fd51e456128 R14: 00007fd51e456090 R15: 00007ffce6094e58 [ 84.209817][ T5093]