watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.0.8:5934] Modules linked in: irq event stamp: 12003559 hardirqs last enabled at (12003558): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:310 hardirqs last disabled at (12003559): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050 softirqs last enabled at (11624882): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (11624882): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (11624882): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 softirqs last disabled at (11624885): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (11624885): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (11624885): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 CPU: 1 UID: 0 PID: 5934 Comm: syz.0.8 Not tainted 6.15.0-syzkaller-gbb1556ec9464 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:check_preemption_disabled+0x40/0x120 lib/smp_processor_id.c:55 Code: 08 65 8b 05 06 6e 37 07 65 8b 0d fb 6d 37 07 f7 c1 ff ff ff 7f 74 23 65 48 8b 0d db 6d 37 07 48 3b 4c 24 08 0f 85 cc 00 00 00 <48> 83 c4 10 5b 41 5e 41 5f 5d e9 01 b8 02 00 cc 48 c7 04 24 00 00 RSP: 0018:ffffc90000a087a0 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 0000000000000000 RCX: b15ba5b2371ab900 RDX: ffff88802b3bbc00 RSI: ffffffff8be26f20 RDI: ffffffff8be26ee0 RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000a08900 R10: dffffc0000000000 R11: ffffffff86f2c020 R12: 0000000000000038 R13: ffff88805a906da0 R14: ffff88805a9069d0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125d5f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3021fffc CR3: 00000000772d0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: rcu_lockdep_current_cpu_online+0x37/0x120 kernel/rcu/tree.c:3994 rcu_read_lock_held_common kernel/rcu/update.c:113 [inline] rcu_read_lock_held+0x1e/0x50 kernel/rcu/update.c:349 mac80211_hwsim_addr_iter+0x8a/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:1362 __iterate_interfaces+0x2ab/0x590 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:797 mac80211_hwsim_addr_match+0x118/0x180 drivers/net/wireless/virtual/mac80211_hwsim.c:1385 mac80211_hwsim_tx_frame_no_nl+0xcf3/0x11c0 drivers/net/wireless/virtual/mac80211_hwsim.c:1876 mac80211_hwsim_tx_frame+0x1b5/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2222 mac80211_hwsim_beacon_tx+0x3f0/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2323 __iterate_interfaces+0x2ab/0x590 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:797 mac80211_hwsim_beacon+0xbb/0x1c0 drivers/net/wireless/virtual/mac80211_hwsim.c:2353 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x52c/0xc60 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842 handle_softirqs+0x283/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:_compound_head include/linux/page-flags.h:282 [inline] RIP: 0010:PageSlab include/linux/page-flags.h:1085 [inline] RIP: 0010:page_table_check_clear+0x96/0x700 mm/page_table_check.c:74 Code: 20 49 83 c7 08 4c 89 fb 48 c1 eb 03 48 b8 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 ff e8 b0 f0 f4 ff 4d 01 e5 4d 8b 27 <4c> 89 e6 48 83 e6 01 31 ff e8 bc 6b 91 ff 4c 89 e0 48 83 e0 01 4c RSP: 0018:ffffc90004f8f350 EFLAGS: 00000286 RAX: dffffc0000000000 RBX: 1ffffd40002abb19 RCX: dffffc0000000000 RDX: ffff88802b3bbc00 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff822eedea R10: ffffc90004f8ef08 R11: fffff520009f1de3 R12: 0000000000000000 R13: ffffea000155d8c0 R14: 0000000000000001 R15: ffffea000155d8c8 ptep_get_and_clear_full arch/x86/include/asm/jump_label.h:-1 [inline] get_and_clear_full_ptes include/linux/pgtable.h:714 [inline] zap_present_folio_ptes mm/memory.c:1503 [inline] zap_present_ptes mm/memory.c:1588 [inline] do_zap_pte_range mm/memory.c:1689 [inline] zap_pte_range mm/memory.c:1733 [inline] zap_pmd_range mm/memory.c:1825 [inline] zap_pud_range mm/memory.c:1854 [inline] zap_p4d_range mm/memory.c:1875 [inline] unmap_page_range+0x32fa/0x4580 mm/memory.c:1896 unmap_single_vma mm/memory.c:1939 [inline] unmap_vmas+0x399/0x580 mm/memory.c:1983 exit_mmap+0x248/0xb50 mm/mmap.c:1284 __mmput+0x118/0x420 kernel/fork.c:1121 exit_mm+0x1da/0x2c0 kernel/exit.c:581 do_exit+0x640/0x22e0 kernel/exit.c:943 do_group_exit+0x21c/0x2d0 kernel/exit.c:1104 get_signal+0x1286/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:111 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1d7ab8e969 Code: Unable to access opcode bytes at 0x7f1d7ab8e93f. RSP: 002b:00007f1d7ba6a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: fffffffffffffff5 RBX: 00007f1d7adb5fa0 RCX: 00007f1d7ab8e969 RDX: 0000000000000080 RSI: 0000200000000140 RDI: 0000000000000005 RBP: 00007f1d7ac10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f1d7adb5fa0 R15: 00007ffce9359408 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5975 Comm: syz.2.18 Not tainted 6.15.0-syzkaller-gbb1556ec9464 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:put_recursion_context kernel/events/internal.h:229 [inline] RIP: 0010:perf_swevent_put_recursion_context kernel/events/core.c:10558 [inline] RIP: 0010:perf_tp_event+0x1281/0x1380 kernel/events/core.c:10970 Code: ff e8 c3 6d b7 ff 65 48 8b 04 25 08 10 9c 92 41 0f b6 ce 48 8d 1c 08 48 81 c3 2c 14 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 38 <84> c0 0f 85 d7 00 00 00 fe 0b 48 c7 44 24 40 0e 36 e0 45 48 8b 44 RSP: 0018:ffffc90000007000 EFLAGS: 00000807 RAX: 0000000000000000 RBX: ffff888030ee502e RCX: 0000000000000002 RDX: 0000000000010100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000007268 R08: ffffc90000007097 R09: 0000000000000000 R10: ffffc90000007088 R11: fffff52000000e13 R12: 0000000000000000 R13: ffffc90000007088 R14: 0000000000000002 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888125c5f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f16c64ae020 CR3: 0000000077270000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: perf_trace_run_bpf_submit+0xee/0x170 kernel/events/core.c:10871 do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0x2f8/0x3b0 include/trace/events/lock.h:50 __do_trace_lock_release include/trace/events/lock.h:69 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0x3b2/0x3e0 kernel/locking/lockdep.c:5882 seqcount_lockdep_reader_access+0xdc/0x1c0 include/linux/seqlock.h:73 ktime_get+0x3e/0x1f0 kernel/time/timekeeping.c:776 clockevents_program_event+0xea/0x360 kernel/time/clockevents.c:326 hrtimer_interrupt+0x620/0xaa0 kernel/time/hrtimer.c:1900 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline] __sysvec_apic_timer_interrupt+0x108/0x410 arch/x86/kernel/apic/apic.c:1056 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:trylock_clear_pending kernel/locking/qspinlock_paravirt.h:124 [inline] RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:431 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x6bf/0xb60 kernel/locking/qspinlock.c:325 Code: 84 c0 0f 85 60 01 00 00 c6 01 01 41 be 00 80 ff ff 66 c7 84 24 90 00 00 00 00 01 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 20 <0f> b6 04 01 84 c0 75 46 80 3b 00 74 09 f3 90 41 ff c6 75 d3 eb 4b RSP: 0018:ffffc90000007780 EFLAGS: 00000286 RAX: dffffc0000000000 RBX: ffffffff8ed6e220 RCX: 1ffffffff1dadc44 RDX: 0000000000000100 RSI: ffffffff8d9705ba RDI: ffff8880b863c894 RBP: ffffc90000007898 R08: ffffffff8fa0bcf7 R09: 1ffffffff1f4179e R10: dffffc0000000000 R11: fffffbfff1f4179f R12: 1ffffffff1bf4f18 R13: 0000000000000000 R14: 00000000ffff8c53 R15: 1ffffffff1dadc44 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:557 [inline] queued_spin_lock_slowpath+0x43/0x50 arch/x86/include/asm/qspinlock.h:51 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock+0x21f/0x290 kernel/locking/spinlock_debug.c:116 spin_lock include/linux/spinlock.h:351 [inline] mac80211_hwsim_tx_frame_no_nl+0x718/0x11c0 drivers/net/wireless/virtual/mac80211_hwsim.c:1822 mac80211_hwsim_tx_frame+0x1b5/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2222 mac80211_hwsim_beacon_tx+0x3f0/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2323 __iterate_interfaces+0x2ab/0x590 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:797 mac80211_hwsim_beacon+0xbb/0x1c0 drivers/net/wireless/virtual/mac80211_hwsim.c:2353 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x52c/0xc60 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842 handle_softirqs+0x283/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:folio_remove_rmap_ptes+0x0/0xaf0 mm/rmap.c:1803 Code: ff e8 74 91 ae ff e9 8b f9 ff ff 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 55 41 57 41 56 41 55 41 54 53 48 83 ec 58 49 89 cd 89 RSP: 0018:ffffc90005137398 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 1ffff92000a26f0f RCX: ffff88807e9bfb40 RDX: 0000000000000001 RSI: ffffea0000486300 RDI: ffffea0000486300 RBP: ffffc90005137650 R08: ffff88807710f228 R09: 0000000000000000 R10: ffffc90005136f88 R11: fffff52000a26df3 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff888030ee3c00 R15: 0000000000000000 zap_present_folio_ptes mm/memory.c:1527 [inline] zap_present_ptes mm/memory.c:1588 [inline] do_zap_pte_range mm/memory.c:1689 [inline] zap_pte_range mm/memory.c:1733 [inline] zap_pmd_range mm/memory.c:1825 [inline] zap_pud_range mm/memory.c:1854 [inline] zap_p4d_range mm/memory.c:1875 [inline] unmap_page_range+0x1a79/0x4580 mm/memory.c:1896 unmap_single_vma mm/memory.c:1939 [inline] unmap_vmas+0x399/0x580 mm/memory.c:1983 exit_mmap+0x248/0xb50 mm/mmap.c:1284 __mmput+0x118/0x420 kernel/fork.c:1121 exit_mm+0x1da/0x2c0 kernel/exit.c:581 do_exit+0x640/0x22e0 kernel/exit.c:943 do_group_exit+0x21c/0x2d0 kernel/exit.c:1104 get_signal+0x1286/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:111 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3d70b8e969 Code: Unable to access opcode bytes at 0x7f3d70b8e93f. RSP: 002b:00007f3d719b2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 0000000000000008 RBX: 00007f3d70db5fa0 RCX: 00007f3d70b8e969 RDX: 0000000000000010 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 00007f3d70c10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3d70db5fa0 R15: 00007fffb2ad95f8