rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-....: (1 GPs behind) idle=a79/1/0x4000000000000002 softirq=23932/23933 fqs=5241 (detected by 1, t=10502 jiffies, g=31709, q=1540) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 8684 Comm: syz.4.1691 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:cpu_online+0x1/0x40 include/linux/cpumask.h:894 Code: e1 07 80 c1 03 38 c1 0f 8c b3 fc ff ff 48 c7 c7 b8 62 e9 8d e8 e0 c5 5e 00 e9 a2 fc ff ff e8 b6 ee c8 08 66 0f 1f 44 00 00 53 <89> fb 83 ff 08 73 26 89 d8 c1 e8 06 48 8d 3c c5 a8 60 e9 8d be 08 RSP: 0018:ffffc90000007390 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 1ffff11017207639 RCX: ffffffff816bcf57 RDX: dffffc0000000000 RSI: ffff8880b903b350 RDI: 0000000000000000 RBP: ffffc90000007478 R08: dffffc0000000000 R09: ffffed100fb1db29 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1101720766a R13: ffff8880b903b1c8 R14: ffff8880b903b180 R15: 1ffff92000000e78 FS: 00007fbef73516c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c245b36 CR3: 000000005e947000 CR4: 00000000003506f0 DR0: 0000000020000300 DR1: 0000000020000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 0000000000000400 Call Trace: rcu_read_unlock_special+0x314/0x520 kernel/rcu/tree_plugin.h:659 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:422 rcu_read_unlock include/linux/rcupdate.h:771 [inline] __perf_event_output kernel/events/core.c:7784 [inline] perf_event_output_forward+0x292/0x310 kernel/events/core.c:7793 __perf_event_overflow+0x35d/0x530 kernel/events/core.c:9486 perf_tp_event+0x363/0xc40 kernel/events/core.c:10018 perf_trace_run_bpf_submit+0xf7/0x1d0 kernel/events/core.c:9992 perf_trace_preemptirq_template+0x31d/0x430 include/trace/events/preemptirq.h:14 trace_irq_enable_rcuidle+0x10e/0x190 include/trace/events/preemptirq.h:40 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:664 RIP: 0010:rcu_read_unlock_special+0x84/0x520 kernel/rcu/tree_plugin.h:671 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 9d a2 96 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:ffffc90000007b00 EFLAGS: 00000206 RAX: 7782faf88a6ae900 RBX: 1ffff92000000f68 RCX: ffffffff96868f03 RDX: dffffc0000000000 RSI: ffffffff8a8b2b00 RDI: ffffffff8ad904c0 RBP: ffffc90000007bd0 R08: ffffffff8186dcf8 R09: ffffed101720765a R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8c923c00 R13: ffff88807d8edd98 R14: ffffc90000007b40 R15: 1ffff92000000f64 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:422 rcu_read_unlock include/linux/rcupdate.h:771 [inline] ieee80211_iterate_active_interfaces_atomic+0x12e/0x140 net/mac80211/util.c:831 mac80211_hwsim_beacon+0xa7/0x180 drivers/net/wireless/mac80211_hwsim.c:1865 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1752 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1769 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558 __do_softirq kernel/softirq.c:592 [inline] invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:unwind_next_frame+0x41b/0x1fa0 arch/x86/kernel/unwind_orc.c:461 Code: 0f b6 04 10 84 c0 0f 85 c5 14 00 00 c6 03 01 49 c7 c6 20 96 88 8a 49 8d 6e 04 49 8d 5e 05 49 89 ec 49 c1 ec 03 41 0f b6 04 14 <84> c0 0f 85 33 14 00 00 48 89 d8 48 c1 e8 03 0f b6 04 10 84 c0 0f RSP: 0018:ffffc90002d57808 EFLAGS: 00000a02 RAX: 0000000000000000 RBX: ffffffff8e881f01 RCX: ffffffff8e125608 RDX: dffffc0000000000 RSI: ffffffff8e881efc RDI: ffffffff8e125604 RBP: ffffffff8e881f00 R08: 000000000000000a R09: ffffc90002d579b0 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1d103e0 R13: ffffffff83c3a003 R14: ffffffff8e881efc R15: ffffc90002d578c0 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:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] __kasan_slab_alloc+0x8e/0xc0 mm/kasan/common.c:467 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook+0x53/0x380 mm/slab.h:519 slab_alloc_node mm/slub.c:3220 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0xf3/0x280 mm/slub.c:3233 kmem_cache_zalloc include/linux/slab.h:711 [inline] lsm_inode_alloc security/security.c:595 [inline] security_inode_alloc+0x24/0x110 security/security.c:1033 inode_init_always+0x939/0xc70 fs/inode.c:207 alloc_inode fs/inode.c:243 [inline] new_inode_pseudo+0x8f/0x210 fs/inode.c:972 sock_alloc net/socket.c:626 [inline] __sock_create+0x11f/0x8d0 net/socket.c:1450 sock_create net/socket.c:1537 [inline] __sys_socket+0x132/0x370 net/socket.c:1579 __do_sys_socket net/socket.c:1588 [inline] __se_sys_socket net/socket.c:1586 [inline] __x64_sys_socket+0x76/0x80 net/socket.c:1586 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fbef8ef9ff9 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:00007fbef7351038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007fbef90b2058 RCX: 00007fbef8ef9ff9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000015 RBP: 00007fbef8f6c296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fbef90b2058 R15: 00007fff47abc528