rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2631 jiffies s: 300837 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 22696 Comm: syz.1.6114 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:36 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline] RIP: 0010:lock_release+0x58f/0x920 kernel/locking/lockdep.c:5685 Code: 83 f8 01 75 7f 43 c6 44 2f 04 00 48 c7 84 24 80 00 00 00 00 00 00 00 9c 8f 84 24 80 00 00 00 f7 84 24 80 00 00 00 00 02 00 00 <43> c6 44 2f 04 f8 75 70 f7 44 24 50 00 02 00 00 74 01 fb 48 c7 44 RSP: 0018:ffffc900001dffa0 EFLAGS: 00000046 RAX: 0000000000000001 RBX: c05882cde8126320 RCX: 9829c57ce8788600 RDX: 0000000000000003 RSI: ffffffff8a8c23a0 RDI: ffffffff8adf0f60 RBP: ffffc900001e00b0 R08: ffffffff8e1fd76f R09: 1ffffffff1c3faed R10: dffffc0000000000 R11: fffffbfff1c3faee R12: ffff88805a68a918 R13: dffffc0000000000 R14: ffff88805a68a890 R15: 1ffff9200003c000 FS: 00007fb2531826c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c31c835 CR3: 0000000029718000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline] _raw_spin_unlock_irqrestore+0x6d/0x120 kernel/locking/spinlock.c:194 debug_object_activate+0x2f8/0x4f0 lib/debugobjects.c:716 debug_hrtimer_activate kernel/time/hrtimer.c:448 [inline] debug_activate kernel/time/hrtimer.c:503 [inline] enqueue_hrtimer+0x30/0x3f0 kernel/time/hrtimer.c:1105 __run_hrtimer kernel/time/hrtimer.c:1764 [inline] __hrtimer_run_queues+0x685/0xd50 kernel/time/hrtimer.c:1811 hrtimer_interrupt+0x3c5/0x9c0 kernel/time/hrtimer.c:1873 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline] __sysvec_apic_timer_interrupt+0x153/0x5a0 arch/x86/kernel/apic/apic.c:1124 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:ieee80211_rx_h_decrypt net/mac80211/rx.c:2043 [inline] RIP: 0010:ieee80211_rx_handlers+0x2d42/0x7560 net/mac80211/rx.c:4054 Code: c6 00 ba fa 8d e8 1e 94 d6 f7 8d 83 ff 53 f0 ff 83 f8 0c 0f 87 2c 04 00 00 ff 24 c5 60 c2 a6 8b e8 a3 8f d6 f7 e9 8d 03 00 00 99 8f d6 f7 e9 5e ec ff ff e8 8f 8f d6 f7 4c 8b 74 24 18 48 8b RSP: 0018:ffffc900001e0580 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88805a689dc0 RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900001e07b0 R08: ffff88805a689dc0 R09: 0000000000000003 R10: 00000000000000d0 R11: 0000000000000100 R12: dffffc0000000000 R13: ffffc900001e0ae8 R14: 0000000000000080 R15: 00000000ffffffff ieee80211_invoke_rx_handlers net/mac80211/rx.c:4102 [inline] ieee80211_prepare_and_rx_handle+0x227f/0x6260 net/mac80211/rx.c:4927 __ieee80211_rx_handle_packet net/mac80211/rx.c:5185 [inline] ieee80211_rx_list+0x25fe/0x2e60 net/mac80211/rx.c:5315 ieee80211_rx_napi+0x1ae/0x3d0 net/mac80211/rx.c:5338 ieee80211_rx include/net/mac80211.h:4849 [inline] ieee80211_handle_queued_frames+0x105/0x1b0 net/mac80211/main.c:317 tasklet_action_common+0x2fe/0x4d0 kernel/softirq.c:827 handle_softirqs+0x2a1/0x930 kernel/softirq.c:596 __do_softirq kernel/softirq.c:630 [inline] invoke_softirq kernel/softirq.c:470 [inline] __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:preempt_schedule_irq+0xb6/0x160 kernel/sched/core.c:6874 Code: 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 7f bf 01 00 00 00 e8 f5 42 23 f7 e8 b0 35 53 f7 fb bf 01 00 00 00 75 b9 ff ff 43 c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f RSP: 0018:ffffc900034b7ae0 EFLAGS: 00000282 RAX: 9829c57ce8788600 RBX: 0000000000000000 RCX: 9829c57ce8788600 RDX: dffffc0000000000 RSI: ffffffff8a8c1220 RDI: 0000000000000001 RBP: ffffc900034b7b80 R08: ffffffff8fa0b048 R09: ffffffff8fa0b058 R10: ffffffff8fa0b050 R11: ffffffff8fa0b043 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000696f5c irqentry_exit+0x63/0x70 kernel/entry/common.c:439 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:obj_cgroup_charge+0x32a/0x620 mm/memcontrol.c:3358 Code: 84 24 80 00 00 00 f7 84 24 80 00 00 00 00 02 00 00 41 c6 44 1f 08 f8 0f 85 21 01 00 00 41 f7 c4 00 02 00 00 74 01 fb 45 31 e4 <80> 7c 24 14 00 0f 85 a0 00 00 00 48 8b 44 24 18 49 89 c6 49 c1 ee RSP: 0018:ffffc900034b7c40 EFLAGS: 00000246 RAX: 9829c57ce8788600 RBX: dffffc0000000000 RCX: 9829c57ce8788600 RDX: dffffc0000000000 RSI: ffffffff8a8c1220 RDI: ffffffff8adf0f60 RBP: ffffc900034b7d40 R08: ffffffff8e1fd76f R09: 1ffffffff1c3faed R10: dffffc0000000000 R11: fffffbfff1c3faee R12: 0000000000000000 R13: ffff8880b8f36950 R14: ffff8880b8f36978 R15: 1ffff92000696f90 memcg_slab_pre_alloc_hook mm/slab.h:501 [inline] slab_pre_alloc_hook+0x2e7/0x310 mm/slab.h:715 slab_alloc_node mm/slub.c:3279 [inline] slab_alloc mm/slub.c:3367 [inline] __kmem_cache_alloc_lru mm/slub.c:3374 [inline] kmem_cache_alloc_lru+0x49/0x2e0 mm/slub.c:3390 alloc_inode_sb include/linux/fs.h:3245 [inline] sock_alloc_inode+0x24/0xc0 net/socket.c:306 alloc_inode fs/inode.c:261 [inline] new_inode_pseudo+0x5f/0x1c0 fs/inode.c:1063 sock_alloc net/socket.c:631 [inline] __sock_create+0x129/0x940 net/socket.c:1513 sock_create net/socket.c:1605 [inline] __sys_socket_create net/socket.c:1642 [inline] __sys_socket+0xc4/0x190 net/socket.c:1670 __do_sys_socket net/socket.c:1683 [inline] __se_sys_socket net/socket.c:1681 [inline] __x64_sys_socket+0x76/0x80 net/socket.c:1681 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fb25239c799 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb253182028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007fb252615fa0 RCX: 00007fb25239c799 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 000000000000000a RBP: 00007fb252432c99 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fb252616038 R14: 00007fb252615fa0 R15: 00007ffc4608b0f8