rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2647 jiffies s: 7153 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5594 Comm: syz.3.407 Not tainted 6.1.119-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__lock_acquire+0x1234/0x1f80 kernel/locking/lockdep.c:5046 Code: 0f b6 04 10 84 c0 0f 85 53 0b 00 00 83 3d 53 77 ca 15 00 0f 84 b1 00 00 00 31 db 48 83 c3 40 48 89 d8 48 c1 e8 03 80 3c 10 00 <74> 08 48 89 df e8 e2 6a 77 00 48 83 3b 00 0f 84 9a 03 00 00 4c 89 RSP: 0018:ffffc90000007060 EFLAGS: 00000046 RAX: 1ffffffff217ac4c RBX: ffffffff90bd6260 RCX: ffffffff816ab9c0 RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff9124c260 RBP: c905444b88b38453 R08: dffffc0000000000 R09: fffffbfff224984d R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888026cee418 R13: ffff888026ced940 R14: 0000000000000000 R15: 1ffff11004d9dc92 FS: 00007ff249a2e6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001000 CR3: 0000000053775000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 rcu_lock_acquire include/linux/rcupdate.h:350 [inline] rcu_read_lock include/linux/rcupdate.h:791 [inline] __perf_output_begin kernel/events/ring_buffer.c:163 [inline] perf_output_begin_forward+0xcf/0xaf0 kernel/events/ring_buffer.c:271 __perf_event_output kernel/events/core.c:7708 [inline] perf_event_output_forward+0x1e5/0x330 kernel/events/core.c:7726 __perf_event_overflow+0x45e/0x640 kernel/events/core.c:9472 perf_swevent_overflow kernel/events/core.c:9548 [inline] perf_swevent_event+0x4c5/0x550 kernel/events/core.c:9586 perf_tp_event+0x35a/0xc80 kernel/events/core.c:10005 perf_trace_run_bpf_submit+0xf7/0x1d0 kernel/events/core.c:9978 perf_trace_preemptirq_template+0x2d1/0x3d0 include/trace/events/preemptirq.h:14 trace_irq_enable_rcuidle+0xd5/0x140 include/trace/events/preemptirq.h:40 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728 RIP: 0010:rcu_read_unlock_special+0x84/0x540 kernel/rcu/tree_plugin.h:682 Code: f1 f1 f1 00 f2 f2 f2 49 89 04 17 66 41 c7 44 17 09 f3 f3 41 c6 44 17 0b f3 65 44 8b 25 7d 18 8e 7e 41 f7 c4 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 66 42 c7 44 3a RSP: 0018:ffffc90000007ac0 EFLAGS: 00000206 RAX: 27a043faf14bf400 RBX: 1ffff92000000f60 RCX: ffffffff97353103 RDX: dffffc0000000000 RSI: ffffffff8b0c01c0 RDI: ffffffff8b5e6200 RBP: ffffc90000007b98 R08: ffffffff81b6421c R09: ffffed10171c6ad6 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8d32fe00 R13: ffff888026cedd98 R14: ffffc90000007b00 R15: 1ffff92000000f5c __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:426 rcu_read_unlock include/linux/rcupdate.h:823 [inline] ieee80211_rx_napi+0x205/0x3b0 net/mac80211/rx.c:5310 ieee80211_rx include/net/mac80211.h:4831 [inline] ieee80211_handle_queued_frames+0x103/0x1b0 net/mac80211/main.c:315 tasklet_action_common+0x3cb/0x4a0 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571 __do_softirq kernel/softirq.c:605 [inline] invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666 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:__orc_find arch/x86/kernel/unwind_orc.c:59 [inline] RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:178 [inline] RIP: 0010:unwind_next_frame+0x274/0x2220 arch/x86/kernel/unwind_orc.c:448 Code: 87 e2 18 00 00 45 39 e0 0f 84 c0 02 00 00 4e 8d 34 a5 30 db a6 8e 45 29 e0 4b 8d 6c 86 fc 4d 89 f4 4c 39 f5 0f 83 f7 01 00 00 <4d> 29 f4 48 bf 00 00 00 00 00 fc ff df e9 82 02 00 00 48 c7 c5 40 RSP: 0018:ffffc900048ef4c0 EFLAGS: 00000202 RAX: ffffffff8f0d38c4 RBX: ffffffff8f0d38c8 RCX: ffffffff8f0d38cc RDX: ffffffff8fab20e0 RSI: ffffffff8ab1872b RDI: dffffc0000000000 RBP: ffffffff8f0d38c8 R08: 0000000000000007 R09: ffffc900048ef690 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8f0d38c8 R13: ffffffff8ab1872a R14: ffffffff8f0d38c8 R15: ffffffff8f0d38cc arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] kmem_cache_alloc_node+0x136/0x310 mm/slub.c:3443 alloc_task_struct_node kernel/fork.c:172 [inline] dup_task_struct+0x57/0x6d0 kernel/fork.c:981 copy_process+0x637/0x4060 kernel/fork.c:2096 kernel_clone+0x222/0x920 kernel/fork.c:2681 __do_sys_clone kernel/fork.c:2822 [inline] __se_sys_clone kernel/fork.c:2806 [inline] __x64_sys_clone+0x231/0x280 kernel/fork.c:2806 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7ff248b85d19 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 RSP: 002b:00007ff249a2dfe8 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ff248d75fa0 RCX: 00007ff248b85d19 RDX: 0000000020000040 RSI: 0000000020001680 RDI: 0000000004000080 RBP: 00007ff248c01a20 R08: 0000000020001680 R09: 0000000020001680 R10: 0000000020000080 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ff248d75fa0 R15: 00007ffe5dcdaca8