watchdog: BUG: soft lockup - CPU#1 stuck for 122s! [syz.2.310:7417] Modules linked in: irq event stamp: 11163233 hardirqs last enabled at (11163232): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:357 hardirqs last disabled at (11163233): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (11151382): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (11151382): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (11151382): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 softirqs last disabled at (11151385): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (11151385): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (11151385): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 CPU: 1 UID: 0 PID: 7417 Comm: syz.2.310 Not tainted 6.15.0-rc4-syzkaller-gb4432656b36e #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:86 [inline] RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline] RIP: 0010:kasan_check_range+0x97/0x2b0 mm/kasan/generic.c:189 Code: 49 83 fc 10 7f 29 4d 85 e4 0f 84 41 01 00 00 4c 89 cb 48 f7 d3 4c 01 fb 41 80 3b 00 0f 85 de 01 00 00 49 ff c3 48 ff c3 75 ee 21 01 00 00 44 89 dd 83 e5 07 0f 84 b5 00 00 00 41 80 3b 00 4d RSP: 0018:ffffc90000a088c8 EFLAGS: 00000256 RAX: 00000000ffffff01 RBX: 0000000000000000 RCX: ffffffff819eb102 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8880111a8150 RBP: ffffc90000a089b8 R08: ffff8880111a8153 R09: 1ffff1100223502a R10: dffffc0000000000 R11: ffffed100223502b R12: 0000000000000001 R13: ffff8880111a8158 R14: ffffed100223502b R15: 1ffff1100223502a FS: 00007f62241b66c0(0000) GS:ffff8881261cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff42cf82338 CR3: 0000000028146000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1300 [inline] queued_spin_lock include/asm-generic/qspinlock.h:111 [inline] do_raw_spin_lock+0x112/0x290 kernel/locking/spinlock_debug.c:116 spin_lock_bh include/linux/spinlock.h:356 [inline] cfg80211_put_bss+0x40/0x230 net/wireless/scan.c:3344 __ieee80211_rx_handle_packet net/mac80211/rx.c:5179 [inline] ieee80211_rx_list+0x22fc/0x2d80 net/mac80211/rx.c:5416 ieee80211_rx_napi+0x1a8/0x3d0 net/mac80211/rx.c:5439 ieee80211_rx include/net/mac80211.h:5179 [inline] ieee80211_handle_queued_frames+0xe8/0x1f0 net/mac80211/main.c:441 tasklet_action_common+0x369/0x580 kernel/softirq.c:829 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:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:call_rcu+0x719/0x990 kernel/rcu/tree.c:3203 Code: 00 00 f6 84 24 81 00 00 00 02 75 5f f7 44 24 38 00 02 00 00 49 bc 00 00 00 00 00 fc ff df 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 66 43 c7 44 25 09 00 00 43 c6 44 25 0b RSP: 0018:ffffc900040d67a0 EFLAGS: 00000206 RAX: a3f05a97c7970900 RBX: ffff88802fe9d390 RCX: a3f05a97c7970900 RDX: 0000000000000007 RSI: ffffffff8d749f78 RDI: ffffffff8bc1cde0 RBP: ffffc900040d68b0 R08: ffffffff8f7ed377 R09: 1ffffffff1efda6e R10: dffffc0000000000 R11: fffffbfff1efda6f R12: dffffc0000000000 R13: 1ffff9200081ad00 R14: 1ffff1101712757d R15: 0000000000000476 context_switch kernel/sched/core.c:5385 [inline] __schedule+0x16ea/0x4cd0 kernel/sched/core.c:6767 preempt_schedule_notrace+0xd1/0x110 kernel/sched/core.c:7040 preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13 class_preempt_notrace_destructor include/linux/preempt.h:482 [inline] __do_trace_lock_acquire include/trace/events/lock.h:24 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x347/0x360 kernel/locking/lockdep.c:5829 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] class_rcu_constructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 save_stack+0xf7/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:308 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1262 [inline] __free_frozen_pages+0xb0e/0xcd0 mm/page_alloc.c:2725 __slab_free+0x326/0x400 mm/slub.c:4567 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4161 [inline] slab_alloc_node mm/slub.c:4210 [inline] __do_kmalloc_node mm/slub.c:4340 [inline] __kvmalloc_node_noprof+0x2b7/0x5e0 mm/slub.c:5026 kvmalloc_array_node_noprof include/linux/slab.h:1065 [inline] check_cfg+0x152/0x1b00 kernel/bpf/verifier.c:17581 bpf_check+0x5818/0x19a70 kernel/bpf/verifier.c:24017 bpf_prog_load+0x1318/0x1930 kernel/bpf/syscall.c:2971 __sys_bpf+0x5f1/0x860 kernel/bpf/syscall.c:5834 __do_sys_bpf kernel/bpf/syscall.c:5941 [inline] __se_sys_bpf kernel/bpf/syscall.c:5939 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5939 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f622338e969 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:00007f62241b6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f62235b5fa0 RCX: 00007f622338e969 RDX: 0000000000000094 RSI: 0000200000000180 RDI: 0000000000000005 RBP: 00007f6223410ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f62235b5fa0 R15: 00007ffe51624d18 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 7424 Comm: syz.4.311 Not tainted 6.15.0-rc4-syzkaller-gb4432656b36e #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:common_misc_flags arch/x86/events/core.c:3017 [inline] RIP: 0010:perf_arch_misc_flags+0x2e/0xa0 arch/x86/events/core.c:3056 Code: 41 57 41 56 53 49 89 fe 49 bf 00 00 00 00 00 fc ff df e8 85 81 8b 00 49 8d be 90 00 00 00 48 89 f8 48 c1 e8 03 42 80 3c 38 00 <74> 05 e8 6b 76 ed 00 41 8b 9e 90 00 00 00 83 e3 08 c1 e3 0b 49 81 RSP: 0018:ffffc90000006ee0 EFLAGS: 00000046 RAX: 1ffff92000000edd RBX: 1ffff92000000de4 RCX: ffff88802eb58000 RDX: 0000000000010100 RSI: 0000000000000000 RDI: ffffc900000076e8 RBP: ffffc90000007010 R08: 0000000000000000 R09: 0000000000080000 R10: 0000000000000000 R11: ffffffff81eebeef R12: 0000000000000000 R13: 0000000000000000 R14: ffffc90000007658 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881260cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fadb32fd378 CR3: 000000005a82a000 CR4: 00000000003526f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: perf_misc_flags kernel/events/core.c:7286 [inline] perf_prepare_header kernel/events/core.c:8280 [inline] __perf_event_output kernel/events/core.c:8353 [inline] perf_event_output_forward+0x256/0x430 kernel/events/core.c:8373 __perf_event_overflow+0x7cc/0xe10 kernel/events/core.c:10249 perf_swevent_hrtimer+0x3c2/0x540 kernel/events/core.c:11613 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x4dd/0xc60 kernel/time/hrtimer.c:1825 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1887 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x108/0x410 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:perf_tp_filter_match kernel/events/core.c:10758 [inline] RIP: 0010:perf_tp_event_match kernel/events/core.c:10775 [inline] RIP: 0010:perf_tp_event+0x238/0x1380 kernel/events/core.c:10858 Code: 00 74 05 e8 9a 53 32 00 49 8b 9c 24 f0 02 00 00 48 85 db 49 0f 44 dc 48 81 c3 70 05 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 <74> 08 48 89 df e8 6e 53 32 00 48 8b 3b 48 85 ff 0f 85 ea 02 00 00 RSP: 0018:ffffc90000007700 EFLAGS: 00000246 RAX: 1ffff1100b852236 RBX: ffff88805c2911b0 RCX: ffff88802eb58000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff88805c290f30 RBP: ffffc90000007968 R08: ffffc900000078cf R09: 0000000000000000 R10: ffffc900000078c0 R11: fffff52000000f1a R12: ffff88805c290c40 R13: ffffc90000007788 R14: ffff8880b8832690 R15: dffffc0000000000 perf_trace_run_bpf_submit+0xee/0x170 kernel/events/core.c:10793 do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x335/0x410 include/trace/events/lock.h:24 __do_trace_lock_acquire include/trace/events/lock.h:24 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x311/0x360 kernel/locking/lockdep.c:5829 call_timer_fn+0xdb/0x5f0 kernel/time/timer.c:1786 expire_timers kernel/time/timer.c:1840 [inline] __run_timers kernel/time/timer.c:2414 [inline] __run_timer_base+0x61a/0x860 kernel/time/timer.c:2426 run_timer_base kernel/time/timer.c:2435 [inline] run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2445 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:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:memset_orig+0x25/0xb0 arch/x86/lib/memset_64.S:63 Code: 90 90 90 90 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01 01 01 48 0f af c1 41 89 f9 41 83 e1 07 75 74 48 89 d1 48 c1 e9 06 <74> 39 66 0f 1f 84 00 00 00 00 00 48 ff c9 48 89 07 48 89 47 08 48 RSP: 0018:ffffc90003e8ef38 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffffe8ffffc24048 RCX: 0000000000000004 RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffffc90003e8efc0 RBP: ffffc90003e8f1a8 R08: ffffc90003e8f0bf R09: 0000000000000000 R10: ffffc90003e8efc0 R11: fffff520007d1e18 R12: 000000000000002c R13: ffffe8ffffcc9000 R14: ffffc90003e8efc0 R15: dffffc0000000000 perf_tp_event+0xb7/0x1380 kernel/events/core.c:10845 perf_trace_run_bpf_submit+0xee/0x170 kernel/events/core.c:10793 do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x335/0x410 include/trace/events/lock.h:24 __do_trace_lock_acquire include/trace/events/lock.h:24 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x311/0x360 kernel/locking/lockdep.c:5829 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] page_table_check_clear+0x182/0x6e0 mm/page_table_check.c:77 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:1501 [inline] zap_present_ptes mm/memory.c:1586 [inline] do_zap_pte_range mm/memory.c:1687 [inline] zap_pte_range mm/memory.c:1731 [inline] zap_pmd_range mm/memory.c:1823 [inline] zap_pud_range mm/memory.c:1852 [inline] zap_p4d_range mm/memory.c:1873 [inline] unmap_page_range+0x30be/0x4210 mm/memory.c:1894 unmap_vmas+0x25d/0x3c0 mm/memory.c:1984 exit_mmap+0x245/0xba0 mm/mmap.c:1284 __mmput+0x118/0x420 kernel/fork.c:1379 exit_mm+0x1da/0x2c0 kernel/exit.c:589 do_exit+0x859/0x2550 kernel/exit.c:940 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102 get_signal+0x125e/0x1310 kernel/signal.c:3034 arch_do_signal_or_restart+0x95/0x780 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+0x8b/0x120 kernel/entry/common.c:218 do_syscall_64+0x103/0x210 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe496b8e969 Code: Unable to access opcode bytes at 0x7fe496b8e93f. RSP: 002b:00007fe49791b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 000000000000000c RBX: 00007fe496db5fa0 RCX: 00007fe496b8e969 RDX: 0000000000000000 RSI: 0000000400000002 RDI: 0000000000000010 RBP: 00007fe496c10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe496db5fa0 R15: 00007ffc6d6c7898