watchdog: BUG: soft lockup - CPU#0 stuck for 121s! [syz.2.61:6100] Modules linked in: irq event stamp: 23521047 hardirqs last enabled at (23521046): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (23521047): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (23513388): [] __do_softirq kernel/softirq.c:595 [inline] softirqs last enabled at (23513388): [] invoke_softirq kernel/softirq.c:435 [inline] softirqs last enabled at (23513388): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 softirqs last disabled at (23513391): [] __do_softirq kernel/softirq.c:595 [inline] softirqs last disabled at (23513391): [] invoke_softirq kernel/softirq.c:435 [inline] softirqs last disabled at (23513391): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 CPU: 0 UID: 0 PID: 6100 Comm: syz.2.61 Not tainted 6.13.0-rc7-syzkaller-00019-gc45323b7560e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:ieee80211_led_rx net/mac80211/led.h:16 [inline] RIP: 0010:ieee80211_rx_h_defragment net/mac80211/rx.c:2407 [inline] RIP: 0010:ieee80211_rx_handlers+0x1b73/0xb830 net/mac80211/rx.c:4198 Code: 49 8d 9e 64 1f 00 00 48 89 df be 04 00 00 00 e8 93 3e c7 f6 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 63 44 00 00 8b 1b <31> ff 89 de e8 04 d6 60 f6 85 db 0f 84 33 03 00 00 e8 b7 d1 60 f6 RSP: 0018:ffffc900000073e0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8b3eb08d RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888011cdada4 RBP: ffffc90000007730 R08: ffff888011cdada7 R09: 1ffff1100239b5b4 R10: dffffc0000000000 R11: ffffed100239b5b5 R12: ffff88804b95c500 R13: dffffc0000000000 R14: ffff888011cd8e40 R15: ffff88807eb44840 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3d90723f30 CR3: 000000000e736000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: ieee80211_invoke_rx_handlers net/mac80211/rx.c:4245 [inline] ieee80211_prepare_and_rx_handle+0x31ab/0x6360 net/mac80211/rx.c:5093 __ieee80211_rx_handle_packet net/mac80211/rx.c:5334 [inline] ieee80211_rx_list+0x2df4/0x3810 net/mac80211/rx.c:5469 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5492 ieee80211_rx include/net/mac80211.h:5166 [inline] ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:441 tasklet_action_common+0x426/0x620 kernel/softirq.c:811 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:__schedule+0x1864/0x4c30 kernel/sched/core.c:6762 Code: f2 0c 3c f6 48 8b 74 24 18 48 89 33 48 8b 7c 24 28 e8 30 15 40 f5 48 89 c7 e8 88 d0 a4 f5 48 c7 84 24 00 01 00 00 0e 36 e0 45 <48> b8 00 00 00 00 00 fc ff df 48 8b 8c 24 f8 00 00 00 48 c7 04 08 RSP: 0018:ffffc9000509ec80 EFLAGS: 00000286 RAX: 57d3785a0574d700 RBX: ffff8880b863e8c0 RCX: ffffffff817b387a RDX: dffffc0000000000 RSI: ffffffff8c0a98e0 RDI: ffffffff8c5fb220 RBP: ffffc9000509ee90 R08: ffffffff942a58b7 R09: 1ffffffff2854b16 R10: dffffc0000000000 R11: fffffbfff2854b17 R12: ffffc9000509ee10 R13: 1ffff110170c7ed9 R14: ffff88802ac93c00 R15: ffff88802ac94370 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6935 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6959 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x130/0x140 kernel/locking/spinlock.c:194 rcu_preempt_deferred_qs_irqrestore+0x87b/0xc70 rcu_read_unlock_special+0x497/0x570 kernel/rcu/tree_plugin.h:692 __rcu_read_unlock+0xa1/0x110 kernel/rcu/tree_plugin.h:437 rcu_read_unlock include/linux/rcupdate.h:882 [inline] pte_unmap include/linux/pgtable.h:136 [inline] zap_pte_range mm/memory.c:1705 [inline] zap_pmd_range mm/memory.c:1753 [inline] zap_pud_range mm/memory.c:1782 [inline] zap_p4d_range mm/memory.c:1803 [inline] unmap_page_range+0x3755/0x4040 mm/memory.c:1824 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1914 exit_mmap+0x275/0xc20 mm/mmap.c:1672 __mmput+0x115/0x3c0 kernel/fork.c:1348 exit_mm+0x220/0x310 kernel/exit.c:570 do_exit+0x9ad/0x28e0 kernel/exit.c:925 do_group_exit+0x207/0x2c0 kernel/exit.c:1087 get_signal+0x16b2/0x1750 kernel/signal.c:3017 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcbdc18cd29 Code: Unable to access opcode bytes at 0x7fcbdc18ccff. RSP: 002b:00007fcbdd020038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 0000000000000009 RBX: 00007fcbdc3a5fa0 RCX: 00007fcbdc18cd29 RDX: 0000000000000011 RSI: 0000922000000003 RDI: 000000000000000a RBP: 00007fcbdc20e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fcbdc3a5fa0 R15: 00007ffc9fc16cc8 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 35 Comm: kworker/u8:2 Not tainted 6.13.0-rc7-syzkaller-00019-gc45323b7560e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline] RIP: 0010:smp_call_function_many_cond+0x19f3/0x2c60 kernel/smp.c:884 Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 c6 e6 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 71 e2 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 55 e2 RSP: 0018:ffffc90000ab76e0 EFLAGS: 00000293 RAX: ffffffff8193a01b RBX: 1ffff110170c8c89 RCX: ffff888020adbc00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000ab78e0 R08: ffffffff81939fea R09: 1ffffffff2854b10 R10: dffffc0000000000 R11: fffffbfff2854b11 R12: dffffc0000000000 R13: ffff8880b8646448 R14: ffff8880b873fac0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe45eae864 CR3: 000000000e736000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2114 [inline] text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2324 text_poke_flush arch/x86/kernel/alternative.c:2515 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2522 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_disable_cpuslocked+0xd2/0x1c0 kernel/jump_label.c:240 static_key_disable+0x1a/0x20 kernel/jump_label.c:248 toggle_allocation_gate+0x1bf/0x260 mm/kfence/core.c:854 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317 worker_thread+0x870/0xd30 kernel/workqueue.c:3398 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244