Warning: Permanently added '10.128.0.249' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 86.704220][ T128] cfg80211: failed to load regulatory.db [ 97.582096][ T22] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2658 jiffies s: 713 root: 0x1/. [ 97.594559][ T22] rcu: blocking rcu_node structures (internal RCU debug): [ 97.601710][ T22] Sending NMI from CPU 1 to CPUs 0: [ 97.607021][ C0] NMI backtrace for cpu 0 [ 97.607043][ C0] CPU: 0 PID: 4320 Comm: syz-executor330 Not tainted syzkaller #0 [ 97.607058][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 97.607070][ C0] RIP: 0010:mark_lock+0x1/0x320 [ 97.607110][ C0] Code: c1 7c 90 48 c7 c7 68 9f 1f 8e e8 da 54 6d 00 4c 89 f7 41 89 d9 e9 79 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 <41> 57 41 56 41 55 41 54 53 50 89 d5 49 89 f6 48 89 fb 49 bd 00 00 [ 97.607126][ C0] RSP: 0018:ffffc90003d575d0 EFLAGS: 00000002 [ 97.607139][ C0] RAX: 0000000000000000 RBX: ffff88802f8bc658 RCX: b608b232e527f700 [ 97.607151][ C0] RDX: 0000000000000002 RSI: ffff88802f8bc660 RDI: ffff88802f8bbb80 [ 97.607162][ C0] RBP: ffffc90003d576a0 R08: dffffc0000000000 R09: ffffed10171c6afa [ 97.607174][ C0] R10: ffffed10171c6afa R11: 1ffff110171c6af9 R12: ffff88802f8bc680 [ 97.607185][ C0] R13: 0000000000000000 R14: 1ffff11005f178cb R15: ffff88802f8bc660 [ 97.607196][ C0] FS: 000055558cf80380(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 [ 97.607210][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.607220][ C0] CR2: 00007f775966e110 CR3: 0000000073542000 CR4: 00000000003506f0 [ 97.607234][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 97.607243][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 97.607252][ C0] Call Trace: [ 97.607257][ C0] [ 97.607263][ C0] lockdep_hardirqs_on_prepare+0x23c/0x760 [ 97.607287][ C0] ? lock_chain_count+0x20/0x20 [ 97.607308][ C0] ? asm_sysvec_irq_work+0x16/0x20 [ 97.607329][ C0] ? asm_sysvec_irq_work+0x16/0x20 [ 97.607345][ C0] ? trace_irq_enable_rcuidle+0xe6/0x140 [ 97.607367][ C0] trace_hardirqs_on+0x34/0x40 [ 97.607386][ C0] asm_sysvec_irq_work+0x16/0x20 [ 97.607402][ C0] RIP: 0010:rcu_read_unlock_special+0x84/0x500 [ 97.607417][ C0] Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 ed 90 96 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b [ 97.607429][ C0] RSP: 0018:ffffc90003d57760 EFLAGS: 00000206 [ 97.607441][ C0] RAX: b608b232e527f700 RBX: 1ffff920007aaef4 RCX: b608b232e527f700 [ 97.607453][ C0] RDX: dffffc0000000000 RSI: ffffffff8a8c0580 RDI: ffffffff8adef760 [ 97.607464][ C0] RBP: ffffc90003d57848 R08: dffffc0000000000 R09: fffffbfff215c449 [ 97.607475][ C0] R10: fffffbfff215c449 R11: 1ffffffff215c448 R12: 0000000000000246 [ 97.607486][ C0] R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001 [ 97.607503][ C0] ? __schedule+0x10f4/0x40b0 [ 97.607521][ C0] ? schedule+0xb9/0x180 [ 97.607537][ C0] ? schedule+0x140/0x180 [ 97.607553][ C0] ? pcpu_alloc+0x285/0x1a30 [ 97.607571][ C0] ? packet_create+0x192/0x760 [ 97.607592][ C0] ? __sock_create+0x4a2/0x940 [ 97.607611][ C0] ? __rcu_read_unlock+0xd0/0xd0 [ 97.607624][ C0] ? page_ext_get+0x1e/0x2a0 [ 97.607645][ C0] ? page_ext_get+0x1de/0x2a0 [ 97.607666][ C0] __rcu_read_unlock+0x78/0xd0 [ 97.607680][ C0] page_ext_put+0x91/0xb0 [ 97.607699][ C0] free_unref_page_prepare+0x8b4/0x9a0 [ 97.607722][ C0] free_unref_page+0x2e/0x3f0 [ 97.607744][ C0] __mmdrop+0xb0/0x480 [ 97.607759][ C0] finish_task_switch+0x3e4/0x8f0 [ 97.607782][ C0] __schedule+0x10f4/0x40b0 [ 97.607808][ C0] ? __sched_text_start+0x8/0x8 [ 97.607824][ C0] ? __mutex_trylock_common+0x80/0x250 [ 97.607863][ C0] ? trace_raw_output_contention_end+0xd0/0xd0 [ 97.607885][ C0] schedule+0xb9/0x180 [ 97.607913][ C0] schedule_preempt_disabled+0xf/0x20 [ 97.607932][ C0] __mutex_lock+0x555/0xaf0 [ 97.607953][ C0] ? __mutex_lock+0x3a5/0xaf0 [ 97.607974][ C0] ? pcpu_alloc+0x285/0x1a30 [ 97.607993][ C0] ? mutex_lock_nested+0x10/0x10 [ 97.608014][ C0] ? sock_update_netprioidx+0x4e/0x390 [ 97.608031][ C0] ? __lock_acquire+0x7c50/0x7c50 [ 97.608054][ C0] pcpu_alloc+0x285/0x1a30 [ 97.608073][ C0] ? sock_update_netprioidx+0x4e/0x390 [ 97.608090][ C0] ? sock_update_netprioidx+0x2b5/0x390 [ 97.608106][ C0] ? sk_alloc+0x242/0x340 [ 97.608122][ C0] packet_create+0x192/0x760 [ 97.608146][ C0] __sock_create+0x4a2/0x940 [ 97.608169][ C0] __sys_socket+0xc4/0x190 [ 97.608189][ C0] __x64_sys_socket+0x76/0x80 [ 97.608209][ C0] do_syscall_64+0x4c/0xa0 [ 97.608227][ C0] ? clear_bhb_loop+0x60/0xb0 [ 97.608244][ C0] ? clear_bhb_loop+0x60/0xb0 [ 97.608262][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 97.608279][ C0] RIP: 0033:0x7f77595f4be9 [ 97.608296][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 97.608308][ C0] RSP: 002b:00007ffd32e4c8e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 [ 97.608323][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f77595f4be9 [ 97.608334][ C0] RDX: 0000000000000300 RSI: 0200000000000002 RDI: 0000000000000011 [ 97.608344][ C0] RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0 [ 97.608354][ C0] R10: 00000000000000a0 R11: 0000000000000246 R12: 00000000000114e4 [ 97.608363][ C0] R13: 00007ffd32e4c8fc R14: 00007ffd32e4c910 R15: 00007ffd32e4c900 [ 97.608380][ C0] [ 97.608386][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.369 msecs