watchdog: BUG: soft lockup - CPU#1 stuck for 144s! [syz.1.38:6053] Modules linked in: irq event stamp: 12574105 hardirqs last enabled at (12574104): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (12574105): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (12410818): [] __do_softirq kernel/softirq.c:595 [inline] softirqs last enabled at (12410818): [] invoke_softirq kernel/softirq.c:435 [inline] softirqs last enabled at (12410818): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 softirqs last disabled at (12410821): [] __do_softirq kernel/softirq.c:595 [inline] softirqs last disabled at (12410821): [] invoke_softirq kernel/softirq.c:435 [inline] softirqs last disabled at (12410821): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 CPU: 1 UID: 0 PID: 6053 Comm: syz.1.38 Not tainted 6.13.0-rc3-syzkaller-gc5d2bac978c5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:rate_control_get_rate+0x154/0x5e0 net/mac80211/rate.c:935 Code: 84 c0 0f 85 c7 03 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 cf 03 00 00 66 41 c7 47 34 00 00 49 8d 7f 36 48 89 f8 <48> c1 e8 03 42 0f b6 04 28 84 c0 0f 85 cf 03 00 00 41 c6 47 36 ff RSP: 0018:ffffc90000a18828 EFLAGS: 00000246 RAX: ffff88807cbd87b6 RBX: ffff88807cbd87b5 RCX: ffff88807cbd87b0 RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff88807cbd87b6 RBP: 0000000000000000 R08: ffffffff8b440ec8 R09: 0000000000000000 R10: ffffc90000a18920 R11: fffff52000143128 R12: ffff88805a3c4d80 R13: dffffc0000000000 R14: ffff88805a3c5720 R15: ffff88807cbd8780 FS: 00007f618dbd96c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3011fffc CR3: 000000005cc6a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_finish+0x49e/0x870 net/mac80211/tx.c:5255 __ieee80211_beacon_get+0xf7e/0x15c0 ieee80211_beacon_get_tim+0xb4/0x320 net/mac80211/tx.c:5596 ieee80211_beacon_get include/net/mac80211.h:5635 [inline] mac80211_hwsim_beacon_tx+0x39d/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2311 __iterate_interfaces+0x297/0x570 net/mac80211/util.c:758 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:794 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2345 __run_hrtimer kernel/time/hrtimer.c:1739 [inline] __hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1803 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1820 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:kvm_kick_cpu+0x77/0xb0 arch/x86/kernel/kvm.c:1042 Code: 1f dd ba 00 48 c7 c3 68 11 02 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 16 8b 0b b8 05 00 00 00 31 db 0f 01 c1 <5b> 41 5e 41 5f c3 cc cc cc cc 89 d9 80 e1 07 80 c1 03 38 c1 7c de RSP: 0018:ffffc900045ff438 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffffc90004ec1000 RSI: 0000000000010881 RDI: 0000000000010882 RBP: 0000000000000000 R08: ffffffff814afa0c R09: 1ffffffff1d57b94 R10: dffffc0000000000 R11: fffffbfff1d57b95 R12: ffff88823ffe1bc0 R13: ffffffff8eabdcb0 R14: ffffffff8e2e4b50 R15: dffffc0000000000 pv_kick kernel/locking/qspinlock_paravirt.h:539 [inline] __pv_queued_spin_unlock_slowpath+0x1d3/0x2f0 kernel/locking/qspinlock_paravirt.h:539 __raw_callee_save___pv_queued_spin_unlock_slowpath+0x15/0x30 .slowpath+0x9/0x18 pv_queued_spin_unlock arch/x86/include/asm/paravirt.h:589 [inline] queued_spin_unlock arch/x86/include/asm/qspinlock.h:57 [inline] do_raw_spin_unlock+0x13c/0x8b0 kernel/locking/spinlock_debug.c:142 __raw_spin_unlock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_unlock+0x1e/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] __kernfs_new_node+0x1f8/0x870 fs/kernfs/dir.c:635 kernfs_new_node+0x137/0x240 fs/kernfs/dir.c:700 __kernfs_create_file+0x49/0x2e0 fs/kernfs/file.c:1034 sysfs_add_file_mode_ns+0x24a/0x310 fs/sysfs/file.c:313 create_files fs/sysfs/group.c:76 [inline] internal_create_group+0x782/0x12d0 fs/sysfs/group.c:183 internal_create_groups fs/sysfs/group.c:223 [inline] sysfs_create_groups+0x56/0x120 fs/sysfs/group.c:249 create_dir lib/kobject.c:78 [inline] kobject_add_internal+0x472/0x8d0 lib/kobject.c:240 kobject_add_varg lib/kobject.c:374 [inline] kobject_init_and_add+0x124/0x190 lib/kobject.c:457 netdev_queue_add_kobject net/core/net-sysfs.c:1789 [inline] netdev_queue_update_kobjects+0x1f5/0x550 net/core/net-sysfs.c:1841 register_queue_kobjects net/core/net-sysfs.c:1903 [inline] netdev_register_kobject+0x234/0x2e0 net/core/net-sysfs.c:2143 register_netdevice+0x12c5/0x1b00 net/core/dev.c:10599 ppp_unit_register drivers/net/ppp/ppp_generic.c:1219 [inline] ppp_dev_configure+0x883/0xb10 drivers/net/ppp/ppp_generic.c:1275 ppp_create_interface drivers/net/ppp/ppp_generic.c:3348 [inline] ppp_unattached_ioctl drivers/net/ppp/ppp_generic.c:1060 [inline] ppp_ioctl+0x797/0x1cd0 drivers/net/ppp/ppp_generic.c:733 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f618cd85d29 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:00007f618dbd9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f618cf75fa0 RCX: 00007f618cd85d29 RDX: 0000000020001400 RSI: 00000000c004743e RDI: 000000000000000d RBP: 00007f618ce01b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f618cf75fa0 R15: 00007ffe36aed218 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 6068 Comm: syz.4.42 Not tainted 6.13.0-rc3-syzkaller-gc5d2bac978c5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:perf_trace_run_bpf_submit+0x5/0x180 kernel/events/core.c:10463 Code: 0f 8c 6b ff ff ff 4c 89 f7 e8 a7 0f 35 00 e9 5e ff ff ff 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <41> 57 41 56 41 55 41 54 53 48 83 ec 18 4d 89 cd 4c 89 44 24 10 48 RSP: 0018:ffffc90000006f60 EFLAGS: 00000046 RAX: 1ffff92000000e00 RBX: 0000000000000002 RCX: ffffffff8e802980 RDX: 0000000000000002 RSI: 000000000000002c RDI: ffffe8ffffc7f418 RBP: ffffc900000070a0 R08: 0000000000000001 R09: ffff8880b8637830 R10: 3e2d735f5f5f5f26 R11: 746e756f63716573 R12: dffffc0000000000 R13: ffffe8ffffc3db18 R14: 000000000000002c R15: ffffffff8e802980 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5a37f76038 CR3: 000000006545a000 CR4: 00000000003526f0 Call Trace: do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x3c3/0x4f0 include/trace/events/lock.h:24 trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x51b/0x550 kernel/locking/lockdep.c:5820 seqcount_lockdep_reader_access+0xfc/0x220 include/linux/seqlock.h:72 ktime_get+0x3e/0x1f0 kernel/time/timekeeping.c:811 clockevents_program_event+0xe6/0x350 kernel/time/clockevents.c:326 hrtimer_interrupt+0x5b7/0xa40 kernel/time/hrtimer.c:1878 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x110/0x420 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:preempt_count_add+0x6/0x190 kernel/sched/core.c:5838 Code: 48 8b 3c 24 e8 8b 56 98 00 eb 8c e9 ee fe ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 <41> 56 53 89 fb 48 c7 c0 c0 89 3a 9a 48 c1 e8 03 49 bf 00 00 00 00 RSP: 0018:ffffc90000007560 EFLAGS: 00000202 RAX: 0000000000000002 RBX: 1ffff92000000ec8 RCX: ffffc90000007ba0 RDX: dffffc0000000000 RSI: ffffffff8b4531d7 RDI: 0000000000000001 RBP: ffffc90000007678 R08: 0000000000000007 R09: ffffc90000007730 R10: ffffc90000007690 R11: ffffffff818b39e0 R12: dffffc0000000000 R13: ffffc90000007640 R14: ffffffff8b4531d7 R15: 0000000000000000 unwind_next_frame+0xb0/0x22d0 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:582 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2353 [inline] slab_free mm/slub.c:4613 [inline] kmem_cache_free+0x195/0x410 mm/slub.c:4715 skb_kfree_head net/core/skbuff.c:1084 [inline] skb_free_head net/core/skbuff.c:1098 [inline] skb_release_data+0x677/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] consume_skb+0x9f/0xf0 net/core/skbuff.c:1436 mac80211_hwsim_beacon_tx+0x3bf/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2315 __iterate_interfaces+0x297/0x570 net/mac80211/util.c:758 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:794 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2345 __run_hrtimer kernel/time/hrtimer.c:1739 [inline] __hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1803 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1820 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_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:unlink_anon_vmas+0x334/0x5f0 mm/rmap.c:424 Code: 48 8b 1b 48 85 db 74 41 e8 69 0e ad ff 48 81 c3 b0 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 bc 71 13 00 <48> ff 0b 42 80 7c 2d 00 00 4c 89 f3 74 08 48 89 df e8 96 72 13 00 RSP: 0018:ffffc9000553f600 EFLAGS: 00000246 RAX: 1ffff1100c8b2ce2 RBX: ffff888064596710 RCX: ffff88802dd6da00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 1ffff110049bf66a R08: ffffffff81e8930e R09: 1ffff1100c8b2cce R10: dffffc0000000000 R11: ffffed100c8b2ccf R12: 0000000000000000 R13: dffffc0000000000 R14: ffff888024dfb350 R15: ffff888024dfb340 free_pgtables+0x567/0x840 mm/memory.c:407 exit_mmap+0x48e/0xc20 mm/mmap.c:1679 __mmput+0x115/0x3c0 kernel/fork.c:1353 exit_mm+0x220/0x310 kernel/exit.c:570 do_exit+0x9b2/0x28e0 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: 0033:0x7f56e2f85d29 Code: Unable to access opcode bytes at 0x7f56e2f85cff. RSP: 002b:00007f56e3e600e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007f56e3175fa8 RCX: 00007f56e2f85d29 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f56e3175fac RBP: 00007f56e3175fa0 R08: 7fffffffffffffff R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f56e3175fac R13: 0000000000000000 R14: 00007ffd5505b180 R15: 00007ffd5505b268