rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=5d1c/1/0x4000000000000000 softirq=64810/64815 fqs=0
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5824/1:b..l
rcu: 	(detected by 1, t=10506 jiffies, g=64693, q=306 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 16691 Comm: modprobe Not tainted 6.13.0-rc3-syzkaller-00289-g48f506ad0b68 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__lock_acquire+0x300/0x2100 kernel/locking/lockdep.c:5159
Code: 48 8d b8 e0 0a 00 00 83 fa 31 48 89 7c 24 08 0f 83 59 1a 00 00 4c 8d 2c 92 4a 8d 5c ef 20 48 89 d8 48 c1 e8 03 48 89 44 24 18 <0f> b6 04 30 84 c0 0f 85 ca 14 00 00 4c 8b a4 24 d0 00 00 00 b8 00
RSP: 0018:ffffc900000078f0 EFLAGS: 00000802
RAX: 1ffff11008ce88e5 RBX: ffff888046744728 RCX: ffffffff9a377903
RDX: 0000000000000001 RSI: dffffc0000000000 RDI: ffff8880467446e0
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: dffffc0000000000 R11: fffffbfff2030a67 R12: ffff888046743c00
R13: 0000000000000005 R14: 0000000000000000 R15: ffffffff9a63a9f8
FS:  00007ffa7562a380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffa756f1321 CR3: 0000000045354000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
 debug_object_activate+0x17f/0x580 lib/debugobjects.c:818
 debug_hrtimer_activate kernel/time/hrtimer.c:428 [inline]
 debug_activate kernel/time/hrtimer.c:469 [inline]
 enqueue_hrtimer+0x30/0x3c0 kernel/time/hrtimer.c:1076
 __run_hrtimer kernel/time/hrtimer.c:1756 [inline]
 __hrtimer_run_queues+0x6cb/0xd30 kernel/time/hrtimer.c:1803
 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
 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+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:210
Code: 89 fb e8 23 00 00 00 48 8b 3d 84 9f 8d 0c 48 89 de 5b e9 13 6c 58 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 80 d4 03 00 65 8b 15 90 60
RSP: 0018:ffffc90005a97df8 EFLAGS: 00000297
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888046743c00 RSI: 0000000000000000 RDI: 0000000000000006
RBP: ffffc90005a97f00 R08: ffffffff854ba42a R09: 0000000000000000
R10: ffffc90005a97e40 R11: fffff52000b52fcd R12: 0000000000000008
R13: 0000000000000001 R14: dffffc0000000000 R15: 1ffff92000b52fc4
 arch_static_branch_jump arch/x86/include/asm/jump_label.h:46 [inline]
 __do_sys_getrandom drivers/char/random.c:1403 [inline]
 __se_sys_getrandom drivers/char/random.c:1388 [inline]
 __x64_sys_getrandom+0x11f/0x250 drivers/char/random.c:1388
 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: 0033:0x7ffa756f1334
Code: af 46 10 0f b7 4e 0c 48 01 c8 89 02 48 c1 e8 20 66 89 42 04 31 c0 c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 3e 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 6f 48 8b 15 c5 7a 16 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff25a3c198 EFLAGS: 00000246 ORIG_RAX: 000000000000013e
RAX: ffffffffffffffda RBX: 00007ffa756a34f8 RCX: 00007ffa756f1334
RDX: 0000000000000001 RSI: 0000000000000008 RDI: 00007ffa758602f8
RBP: 00007ffa756a34f0 R08: 0000000000000000 R09: 000000000000000d
R10: 00007fff25a3bf80 R11: 0000000000000246 R12: 00007ffa7569b707
R13: 00000000000001d8 R14: 0000000000000001 R15: 0000000000000000
 </TASK>
task:syz-executor    state:R  running task     stack:20400 pid:5824  tgid:5824  ppid:5819   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6935
 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6959
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 copy_pte_range mm/memory.c:1200 [inline]
 copy_pmd_range+0x6dc8/0x77a0 mm/memory.c:1261
 copy_pud_range mm/memory.c:1298 [inline]
 copy_p4d_range mm/memory.c:1322 [inline]
 copy_page_range+0x99f/0xe90 mm/memory.c:1420
 dup_mmap kernel/fork.c:748 [inline]
 dup_mm kernel/fork.c:1691 [inline]
 copy_mm+0x1126/0x1fd0 kernel/fork.c:1743
 copy_process+0x1845/0x3d50 kernel/fork.c:2394
 kernel_clone+0x223/0x870 kernel/fork.c:2806
 __do_sys_clone kernel/fork.c:2949 [inline]
 __se_sys_clone kernel/fork.c:2933 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2933
 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: 0033:0x7fd6aa97c593
RSP: 002b:00007ffcc5fb9fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd6aa97c593
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: 00005555943e07d0 R11: 0000000000000246 R12: 0000000000000000
R13: 00000000001885cb R14: 00007ffcc5fba130 R15: 0000000000000279
 </TASK>
rcu: rcu_preempt kthread starved for 10506 jiffies! g64693 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:25976 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 16689 Comm: syz.5.2916 Not tainted 6.13.0-rc3-syzkaller-00289-g48f506ad0b68 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__sanitizer_cov_trace_switch+0xe/0x120 kernel/kcov.c:331
Code: 0f 1f 84 00 00 00 00 00 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 41 54 53 4c 8b 16 <48> 8b 46 08 48 83 c0 f8 48 c1 c0 3d 48 83 f8 02 7f 1f 48 85 c0 74
RSP: 0018:ffffc90000a188f8 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000080 RCX: ffff8880267abc00
RDX: 0000000000000100 RSI: ffffffff8f513080 RDI: 0000000000000080
RBP: ffffc90000a18ae8 R08: ffffffff87080eb9 R09: 0000000000000000
R10: 0000000000000002 R11: fffff5200014314a R12: 1ffff11010eade5d
R13: ffff88808756f280 R14: 0000000000000080 R15: dffffc0000000000
FS:  00007fbad0de06c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020003c80 CR3: 000000006827a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 mac80211_hwsim_tx_frame_no_nl+0x8cd/0x18d0 drivers/net/wireless/virtual/mac80211_hwsim.c:1808
 mac80211_hwsim_tx_frame+0x1cc/0x220 drivers/net/wireless/virtual/mac80211_hwsim.c:2215
 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:216
Code: 8b 3d 84 9f 8d 0c 48 89 de 5b e9 13 6c 58 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 80 d4 03 00 65 8b 15 90 60 64 7e 81 e2 00 01 ff 00
RSP: 0018:ffffc9000bd4fa38 EFLAGS: 00000202
RAX: ffffffff81938efb RBX: 1ffff110170c8c65 RCX: 0000000000080000
RDX: ffffc90004fc2000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000bd4fc30 R08: ffffffff81938eca R09: 1ffffffff2030a66
R10: dffffc0000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff8880b8646328 R14: ffff8880b873f940 R15: 0000000000000000
 csd_lock_wait kernel/smp.c:340 [inline]
 smp_call_function_many_cond+0x1a0b/0x2c60 kernel/smp.c:884
 clock_was_set+0x75c/0x810 kernel/time/hrtimer.c:963
 do_settimeofday64+0x343/0x5e0 kernel/time/timekeeping.c:1442
 __do_sys_clock_settime kernel/time/posix-timers.c:1135 [inline]
 __se_sys_clock_settime kernel/time/posix-timers.c:1119 [inline]
 __x64_sys_clock_settime+0x23a/0x280 kernel/time/posix-timers.c:1119
 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: 0033:0x7fbacff85d29
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:00007fbad0de0038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007fbad0175fa0 RCX: 00007fbacff85d29
RDX: 0000000000000000 RSI: 0000000020003c80 RDI: 0000000000000000
RBP: 00007fbad0001aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fbad0175fa0 R15: 00007ffe9247d588
 </TASK>