watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.5.466:8071] Modules linked in: irq event stamp: 10936471 hardirqs last enabled at (10936470): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:310 hardirqs last disabled at (10936471): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050 softirqs last enabled at (10888320): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (10888320): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (10888320): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 softirqs last disabled at (10888323): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (10888323): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (10888323): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 CPU: 1 UID: 0 PID: 8071 Comm: syz.5.466 Not tainted 6.16.0-rc3-syzkaller-gbacdf5a0e69d #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:10583 [inline] RIP: 0010:perf_trace_run_bpf_submit+0x122/0x170 kernel/events/core.c:10892 Code: ff eb 05 e8 20 8e cf ff 65 48 8b 04 25 08 30 9d 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 95 RSP: 0000:ffffc90000a08208 EFLAGS: 00000a03 RAX: 0000000000000000 RBX: ffff888025b4142d RCX: 0000000000000001 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffc90000a0818f R09: 0000000000000000 R10: ffffc90000a08180 R11: ffffffffa020164c R12: ffffe8ffffdd3000 R13: ffffffff8e00dfe0 R14: ffff8880b8732a08 R15: 0000000000000000 FS: 00007f59679c26c0(0000) GS:ffff888125d4d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c32a398 CR3: 0000000030a2a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000f0602 Call Trace: 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 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x19a9/0x2390 arch/x86/kernel/unwind_orc.c:680 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+0xeeb/0x17b0 net/mac80211/tx.c:5471 ieee80211_beacon_get_tim+0xb4/0x2b0 net/mac80211/tx.c:5593 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+0x529/0xc60 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:schedule_debug kernel/sched/core.c:5962 [inline] RIP: 0010:__schedule+0x196/0x4d00 kernel/sched/core.c:6682 Code: 24 49 8d 5e 20 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 f9 43 bc f6 48 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 e0 43 bc f6 48 81 3b 9d 6e ac 57 0f 85 26 18 00 RSP: 0000:ffffc900057bfba0 EFLAGS: 00000246 RAX: 1ffff92000af7000 RBX: ffffc900057b8000 RCX: 62ce063fe60cfc00 RDX: 0000000000000000 RSI: ffffffff8be291a0 RDI: ffffffff8be29160 RBP: ffffc900057bfdb0 R08: ffffffff8fa112f7 R09: 1ffffffff1f4225e R10: dffffc0000000000 R11: fffffbfff1f4225f R12: ffff8880b873aa88 R13: dffffc0000000000 R14: ffff888025b40000 R15: ffff888125d4d000 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:its_return_thunk+0x0/0x10 arch/x86/lib/retpoline.S:412 Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 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 e9 cb 2b c9 f5 cc RSP: 0000:ffffc900057bff30 EFLAGS: 00000286 RAX: 62ce063fe60cfc00 RBX: ffffc900057bff58 RCX: 62ce063fe60cfc00 RDX: 0000000000000000 RSI: ffffffff8d982c4e RDI: ffffffff8be291c0 RBP: 0000000000000000 R08: ffffffff8fa112f7 R09: 1ffffffff1f4225e R10: dffffc0000000000 R11: fffffbfff1f4225f R12: 0000000000000000 R13: 0000000000000000 R14: ffff888025b40000 R15: 000000000000000a exit_to_user_mode_loop kernel/entry/common.c:99 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] irqentry_exit_to_user_mode+0x51/0x120 kernel/entry/common.c:184 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0033:0x7f5966a5eab9 Code: 25 c0 fe ff ff eb 23 66 2e 0f 1f 84 00 00 00 00 00 45 31 c0 31 c9 ba 80 00 00 00 48 89 de bf ca 00 00 00 31 c0 e8 57 fe 12 00 <8b> 03 85 c0 74 e1 c7 45 08 00 00 00 00 45 84 ed 74 2d 80 3d 12 6c RSP: 002b:00007f59679c20f0 EFLAGS: 00000217 RAX: 0000000000000000 RBX: 00007f5966db6088 RCX: 00007f5966b8e929 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5966db6088 RBP: 00007f5966db6080 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5966db608c R13: 0000000000000000 R14: 00007ffed7801c30 R15: 00007ffed7801d18 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 8070 Comm: syz.5.466 Not tainted 6.16.0-rc3-syzkaller-gbacdf5a0e69d #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:lock_acquire+0x114/0x360 kernel/locking/lockdep.c:5871 Code: e2 4d ff 10 45 31 c9 4c 89 7c 24 08 41 f7 c7 00 02 00 00 41 0f 94 c1 4c 89 ef 89 de 8b 54 24 04 44 89 e1 45 89 f0 6a 00 6a 00 <6a> 00 55 ff 74 24 30 e8 e0 02 00 00 48 83 c4 28 48 c7 c7 39 fb b6 RSP: 0018:ffffc90000006790 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff99acb388 RBP: ffffffff81aeb04e R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000003 R11: 0000000000010100 R12: 0000000000000002 R13: ffffffff99acb388 R14: 0000000000000001 R15: 0000000000000046 FS: 00007f59679e36c0(0000) GS:ffff888125c4d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd3440c0040 CR3: 0000000030a2a000 CR4: 00000000003526f0 Call Trace: seqcount_lockdep_reader_access+0xc9/0x1c0 include/linux/seqlock.h:72 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+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:lock_release+0x2b5/0x3e0 kernel/locking/lockdep.c:5896 Code: 51 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 75 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 cb fa fe 10 <48> 3b 44 24 28 0f 85 8b 00 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc90000006b90 EFLAGS: 00000206 RAX: 9770f340a6ffa700 RBX: 0000000000000202 RCX: 9770f340a6ffa700 RDX: 0000000000000002 RSI: ffffffff8db6fb39 RDI: ffffffff8be291c0 RBP: ffff888076892940 R08: ffffc900000069af R09: 0000000000000000 R10: ffffc900000069a0 R11: ffffffffa020164c R12: 0000000000000002 R13: 0000000000000002 R14: ffffffff8e13ee60 R15: ffff888076891e00 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x19a9/0x2390 arch/x86/kernel/unwind_orc.c:680 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 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2381 [inline] slab_free mm/slub.c:4643 [inline] kfree+0x18e/0x440 mm/slub.c:4842 ieee80211_inform_bss+0xbd9/0x10a0 net/mac80211/scan.c:160 rdev_inform_bss net/wireless/rdev-ops.h:418 [inline] cfg80211_inform_single_bss_data+0xd05/0x1ac0 net/wireless/scan.c:2367 cfg80211_inform_bss_data+0x1fb/0x3b20 net/wireless/scan.c:3222 cfg80211_inform_bss_frame_data+0x3d7/0x730 net/wireless/scan.c:3313 ieee80211_bss_info_update+0x746/0x9e0 net/mac80211/scan.c:226 ieee80211_scan_rx+0x593/0xa20 net/mac80211/scan.c:355 __ieee80211_rx_handle_packet net/mac80211/rx.c:5183 [inline] ieee80211_rx_list+0x22fc/0x2d80 net/mac80211/rx.c:5420 ieee80211_rx_napi+0x1a8/0x3d0 net/mac80211/rx.c:5443 ieee80211_rx include/net/mac80211.h:5185 [inline] ieee80211_handle_queued_frames+0xe8/0x1f0 net/mac80211/main.c:441 tasklet_action_common+0x36c/0x580 kernel/softirq.c:829 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:__vmap_pages_range_noflush+0x35/0xe10 mm/vmalloc.c:644 Code: 41 54 53 48 81 ec e0 00 00 00 44 89 c3 48 89 8c 24 88 00 00 00 49 89 d7 48 89 74 24 10 49 89 fc e8 e0 e4 ac ff bf 0c 00 00 00 <89> de e8 14 e9 ac ff 83 fb 0b 4c 89 7c 24 40 0f 86 3c 0d 00 00 bf RSP: 0018:ffffc9000585f7a8 EFLAGS: 00000293 RAX: ffffffff82136f10 RBX: 000000000000000c RCX: ffff888076891e00 RDX: 0000000000000000 RSI: ffffc90004c2c000 RDI: 000000000000000c RBP: ffffc9000585fa80 R08: 000000000000000c R09: 1ffffffff1f4225e R10: dffffc0000000000 R11: fffffbfff1f4225f R12: ffffc90004c2b000 R13: 0000000000001000 R14: ffffc90004c2b000 R15: 8000000000000063 vmap_pages_range_noflush mm/vmalloc.c:673 [inline] vmap_pages_range mm/vmalloc.c:693 [inline] __vmalloc_area_node mm/vmalloc.c:3754 [inline] __vmalloc_node_range_noprof+0xeb5/0x12f0 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:5978 __do_sys_bpf kernel/bpf/syscall.c:6085 [inline] __se_sys_bpf kernel/bpf/syscall.c:6083 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6083 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: 0033:0x7f5966b8e929 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:00007f59679e3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f5966db5fa0 RCX: 00007f5966b8e929 RDX: 0000000000000080 RSI: 0000200000000600 RDI: 0000000000000005 RBP: 00007f5966c10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f5966db5fa0 R15: 00007ffed7801d18