watchdog: BUG: soft lockup - CPU#1 stuck for 113s! [syz.2.101:6296] Modules linked in: irq event stamp: 15497275 hardirqs last enabled at (15497274): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:310 hardirqs last disabled at (15497275): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050 softirqs last enabled at (15485082): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (15485082): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (15485082): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 softirqs last disabled at (15485085): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (15485085): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (15485085): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 CPU: 1 UID: 0 PID: 6296 Comm: syz.2.101 Not tainted 6.16.0-rc2-syzkaller-gd4adf1c9ee77 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__read_once_word_nocheck+0x3/0x10 include/asm-generic/rwonce.h:67 Code: b1 00 48 ba 00 00 00 00 00 fc ff df e9 88 fc ff ff 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 07 08 4f f6 09 cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90000a083d0 EFLAGS: 00000202 RAX: ffffffff81ae70dc RBX: ffffc90000a08c98 RCX: 1ffff92000141001 RDX: ffffffff908ca636 RSI: 0000000000000002 RDI: ffffc90000a08c98 RBP: 1ffff92000141096 R08: 0000000000000009 R09: ffffffff81729af5 R10: ffffc90000a08140 R11: ffffffffa0201a08 R12: ffffc90000a09000 R13: 1ffff92000141097 R14: ffffc90000a084a8 R15: ffffc90000a01000 FS: 00007fbe71cc26c0(0000) GS:ffff888125d51000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbe71ca0f98 CR3: 000000007acbe000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: deref_stack_reg arch/x86/kernel/unwind_orc.c:406 [inline] unwind_next_frame+0xc3c/0x2390 arch/x86/kernel/unwind_orc.c:585 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4148 [inline] slab_alloc_node mm/slub.c:4197 [inline] kmem_cache_alloc_node_noprof+0x1bb/0x3c0 mm/slub.c:4249 kmalloc_reserve+0xbd/0x290 net/core/skbuff.c:579 __alloc_skb+0x142/0x2d0 net/core/skbuff.c:670 __netdev_alloc_skb+0x108/0x970 net/core/skbuff.c:734 netdev_alloc_skb include/linux/skbuff.h:3414 [inline] dev_alloc_skb include/linux/skbuff.h:3427 [inline] __ieee80211_beacon_get+0xe32/0x1630 net/mac80211/tx.c:5458 ieee80211_beacon_get_tim+0xb4/0x2b0 net/mac80211/tx.c:5580 ieee80211_beacon_get include/net/mac80211.h:5638 [inline] mac80211_hwsim_beacon_tx+0x3ce/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2319 __iterate_interfaces+0x2a8/0x590 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+0x286/0x870 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_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:kasan_check_range+0xb/0x2c0 mm/kasan/generic.c:188 Code: ff 90 0f 0b cc cc cc cc cc cc cc cc cc cc cc 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 b0 01 48 85 f6 0f 84 ba 01 00 00 4c 8d 04 37 49 39 f8 0f RSP: 0018:ffffc9000ff1f3f8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8b6715e2 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fa10df0 RBP: ffffc9000ff1f630 R08: ffffc9000ff1f5bf R09: 0000000000000000 R10: ffffc9000ff1f5b0 R11: fffff52001fe3eb8 R12: 0000000000000000 R13: dffffc0000000000 R14: dffffc0000000000 R15: 1ffff92001fe3ec8 instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] cpumask_test_cpu include/linux/cpumask.h:638 [inline] cpu_online include/linux/cpumask.h:1197 [inline] trace_sched_entry_tp include/trace/events/sched.h:884 [inline] __schedule+0xf2/0x4d00 kernel/sched/core.c:6676 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7108 irqentry_exit+0x6f/0x90 kernel/entry/common.c:307 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_pc+0x58/0x70 kernel/kcov.c:233 Code: 00 74 2c 8b 91 18 16 00 00 83 fa 02 75 21 48 8b 91 20 16 00 00 48 8b 32 48 8d 7e 01 8b 89 1c 16 00 00 48 39 cf 73 08 48 89 3a <48> 89 44 f2 08 e9 7e bc a8 09 cc 66 66 66 66 2e 0f 1f 84 00 00 00 RSP: 0018:ffffc9000ff1f7a8 EFLAGS: 00000287 RAX: ffffffff81745e1b RBX: ffff888057278000 RCX: 0000000000080000 RDX: ffffc90004d93000 RSI: 00000000000025dc RDI: 00000000000025dd RBP: ffff888057278000 R08: ffffffff8fa10df7 R09: 1ffffffff1f421be R10: dffffc0000000000 R11: fffffbfff1f421bf R12: ffffea0000000000 R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 __phys_addr+0x1b/0x180 arch/x86/mm/physaddr.c:16 virt_to_folio include/linux/mm.h:1178 [inline] virt_to_slab mm/slab.h:211 [inline] qlink_to_cache mm/kasan/quarantine.c:131 [inline] qlist_free_all+0x39/0x140 mm/kasan/quarantine.c:176 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:4148 [inline] slab_alloc_node mm/slub.c:4197 [inline] __do_kmalloc_node mm/slub.c:4327 [inline] __kmalloc_node_noprof+0x21b/0x4e0 mm/slub.c:4334 kmalloc_node_noprof include/linux/slab.h:932 [inline] __vmalloc_area_node mm/vmalloc.c:3690 [inline] __vmalloc_node_range_noprof+0x5a9/0x12f0 mm/vmalloc.c:3885 __vmalloc_node_noprof mm/vmalloc.c:3948 [inline] __vmalloc_noprof+0xb1/0xf0 mm/vmalloc.c:3962 bpf_prog_alloc_no_stats+0x4a/0x4e0 kernel/bpf/core.c:104 bpf_prog_alloc+0x3c/0x1a0 kernel/bpf/core.c:146 bpf_prog_load+0x735/0x1930 kernel/bpf/syscall.c:2882 __sys_bpf+0x5f1/0x860 kernel/bpf/syscall.c:5836 __do_sys_bpf kernel/bpf/syscall.c:5943 [inline] __se_sys_bpf kernel/bpf/syscall.c:5941 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5941 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbe70d8e929 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:00007fbe71cc2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fbe70fb5fa0 RCX: 00007fbe70d8e929 RDX: 0000000000000048 RSI: 00002000000017c0 RDI: 0000000000000005 RBP: 00007fbe70e10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fbe70fb5fa0 R15: 00007ffca05fb478 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 6294 Comm: syz.0.102 Not tainted 6.16.0-rc2-syzkaller-gd4adf1c9ee77 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:perf_trace_run_bpf_submit+0x12f/0x170 kernel/events/core.c:10873 Code: 08 f0 9c 92 0f b6 cb 48 8d 1c 08 48 81 c3 2c 14 00 00 48 89 d8 48 c1 e8 03 0f b6 04 28 84 c0 75 30 fe 0b 48 83 c4 10 5b 41 5c <41> 5d 41 5e 41 5f 5d e9 55 c7 78 09 cc 44 89 e9 80 e1 07 80 c1 03 RSP: 0018:ffffc90000006c88 EFLAGS: 00000086 RAX: 0000000000000000 RBX: ffffe8ffffc9e010 RCX: 0000000000000002 RDX: 0000000000010100 RSI: 0000000000000001 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffc90000006bef R09: 0000000000000000 R10: ffffc90000006be0 R11: ffffffffa0201a08 R12: ffffe8ffffc9e028 R13: ffffffff8e00dde0 R14: ffff8880b8632ab0 R15: ffffe8ffffc34d70 FS: 0000000000000000(0000) GS:ffff888125c51000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fef31f91e9c CR3: 000000007ad4c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: 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:5834 seqcount_lockdep_reader_access+0xc9/0x1c0 include/linux/seqlock.h:72 ktime_get_update_offsets_now+0x60/0x3d0 kernel/time/timekeeping.c:2427 hrtimer_update_base kernel/time/hrtimer.c:640 [inline] hrtimer_interrupt+0x132/0xaa0 kernel/time/hrtimer.c:1869 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline] __sysvec_apic_timer_interrupt+0x10b/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:kasan_mem_to_shadow include/linux/kasan.h:64 [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+0x57/0x2c0 mm/kasan/generic.c:189 Code: 80 ff ff eb 11 cc cc cc f3 0f 1e fa 49 b9 00 00 00 00 00 00 00 ff f3 0f 1e fa 4c 39 cf 0f 82 58 02 00 00 49 89 ff 49 c1 ef 03 <49> ba 00 00 00 00 00 fc ff df 4f 8d 1c 17 49 ff c8 4d 89 c1 49 c1 RSP: 0018:ffffc900000071c0 EFLAGS: 00000a06 RAX: 0000000000000001 RBX: 000000000000000d RCX: ffffffff819d82b7 RDX: 0000000000000001 RSI: 000000000000000d RDI: ffffe8ffffc9c018 RBP: ffffc90000007318 R08: ffffe8ffffc9c025 R09: ffff800000000000 R10: dffffc0000000000 R11: fffffbfff1717ab1 R12: ffffffff819d82b7 R13: 000000000000000e R14: ffffffff8b8bd580 R15: 1ffffd1ffff93803 __asan_memcpy+0x40/0x70 mm/kasan/shadow.c:106 do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x2c7/0x410 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:5834 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 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4148 [inline] slab_alloc_node mm/slub.c:4197 [inline] kmem_cache_alloc_node_noprof+0x1bb/0x3c0 mm/slub.c:4249 __alloc_skb+0x112/0x2d0 net/core/skbuff.c:660 skb_copy+0x188/0x800 net/core/skbuff.c:2125 mac80211_hwsim_tx_frame_no_nl+0xcd3/0x11c0 drivers/net/wireless/virtual/mac80211_hwsim.c:1871 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+0x2a8/0x590 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+0x286/0x870 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:do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] RIP: 0010:perf_trace_lock_acquire+0x339/0x410 include/trace/events/lock.h:24 Code: 10 8b 94 24 80 00 00 00 4c 8b 4c 24 60 41 b8 01 00 00 00 44 89 f6 48 8b 4c 24 38 6a 00 ff 74 24 10 e8 6b cd 52 00 48 83 c4 10 <4c> 8b 64 24 20 48 c7 44 24 40 0e 36 e0 45 4b c7 04 3c 00 00 00 00 RSP: 0018:ffffc9000feff1a0 EFLAGS: 00000286 RAX: 0000000000000000 RBX: ffffe8ffffc9a010 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000feff290 R08: ffffc9000feff0cf R09: 0000000000000000 R10: ffffc9000feff0c0 R11: ffffffffa0201a08 R12: ffffe8ffffc9a025 R13: 000000000000000e R14: 000000000000002c R15: dffffc0000000000 __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:5834 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] page_table_check_clear+0x1a4/0x700 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:1505 [inline] zap_present_ptes mm/memory.c:1590 [inline] do_zap_pte_range mm/memory.c:1691 [inline] zap_pte_range mm/memory.c:1735 [inline] zap_pmd_range mm/memory.c:1827 [inline] zap_pud_range mm/memory.c:1856 [inline] zap_p4d_range mm/memory.c:1877 [inline] unmap_page_range+0x3249/0x41c0 mm/memory.c:1898 unmap_single_vma mm/memory.c:1941 [inline] unmap_vmas+0x399/0x580 mm/memory.c:1985 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: 0033:0x7f5865d8e929 Code: Unable to access opcode bytes at 0x7f5865d8e8ff. RSP: 002b:00007f5866bad038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: fffffffffffffff5 RBX: 00007f5865fb5fa0 RCX: 00007f5865d8e929 RDX: 0000000000000048 RSI: 0000200000000200 RDI: 0000000000000005 RBP: 00007f5865e10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f5865fb5fa0 R15: 00007ffc07a51678