rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (0 ticks this GP) idle=882c/1/0x4000000000000000 softirq=69906/69906 fqs=0
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P19785/3:b..l P19789/1:b..l
rcu: 	(detected by 0, t=10506 jiffies, g=99885, q=174 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 19787 Comm: syz-executor.3 Not tainted 6.6.0-rc4-syzkaller-00158-gf291209eca5e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:queued_spin_lock include/asm-generic/qspinlock.h:109 [inline]
RIP: 0010:do_raw_spin_lock+0x11a/0x3a0 kernel/locking/spinlock_debug.c:115
Code: 84 c0 0f 85 d6 01 00 00 4c 8d 74 24 60 48 89 5c 24 18 8b 03 65 8b 0d 21 57 95 7e 39 c8 0f 84 1d 01 00 00 4d 89 f5 49 c1 ed 03 <41> 0f b6 44 15 00 84 c0 48 89 d3 0f 85 ca 01 00 00 c7 44 24 60 00
RSP: 0018:ffffc900001f0be0 EFLAGS: 00000806
RAX: 00000000ffffffff RBX: ffff8880b992b848 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: 1ffff9200003e184 RDI: ffff8880b992b840
RBP: ffffc900001f0cb0 R08: dffffc0000000000 R09: 1ffffffff20df871
R10: dffffc0000000000 R11: fffffbfff20df872 R12: ffff8880b992b840
R13: 1ffff9200003e188 R14: ffffc900001f0c40 R15: 1ffff11017325709
FS:  00007f8c539b06c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001000 CR3: 000000002624e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:120 [inline]
 _raw_spin_lock_irq+0xdf/0x120 kernel/locking/spinlock.c:170
 __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
 __hrtimer_run_queues+0x66c/0xd10 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline]
 __sysvec_apic_timer_interrupt+0x104/0x390 arch/x86/kernel/apic/apic.c:1080
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1074
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:console_flush_all+0x9bf/0xec0 kernel/printk/printk.c:2972
Code: 48 21 c3 0f 85 06 02 00 00 e8 cd 36 1d 00 48 8b 5c 24 28 4d 85 f6 75 07 e8 be 36 1d 00 eb 06 e8 b7 36 1d 00 fb 48 8b 44 24 78 <42> 0f b6 04 28 84 c0 0f 85 53 02 00 00 0f b6 1b 31 ff 89 de e8 28
RSP: 0018:ffffc900033bf560 EFLAGS: 00000283
RAX: 1ffff92000677ef8 RBX: ffffc900033bf7c0 RCX: 0000000000040000
RDX: ffffc9000ac34000 RSI: 0000000000002f8e RDI: 0000000000002f8f
RBP: ffffc900033bf710 R08: ffffffff8170d4d0 R09: 1ffffffff20df870
R10: dffffc0000000000 R11: fffffbfff20df871 R12: 0000000000000001
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffffff8da70858
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3035
 vprintk_emit+0x508/0x720 kernel/printk/printk.c:2307
 _printk+0xd5/0x120 kernel/printk/printk.c:2332
 ovl_mount_dir_noesc+0x136/0x190
 ovl_mount_dir fs/overlayfs/params.c:249 [inline]
 ovl_parse_param_upperdir fs/overlayfs/params.c:272 [inline]
 ovl_parse_param+0xa44/0x1c10 fs/overlayfs/params.c:579
 vfs_parse_fs_param+0x1a0/0x410 fs/fs_context.c:146
 vfs_parse_fs_string fs/fs_context.c:188 [inline]
 generic_parse_monolithic+0x2c8/0x3f0 fs/fs_context.c:228
 do_new_mount+0x263/0xae0 fs/namespace.c:3331
 do_mount fs/namespace.c:3675 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8c52c7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8c539b00c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8c52d9bf80 RCX: 00007f8c52c7cae9
RDX: 0000000020000280 RSI: 0000000020000240 RDI: 0000000000000000
RBP: 00007f8c52cc847a R08: 0000000020000080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8c52d9bf80 R15: 00007ffcb6e6b098
 </TASK>
task:syz-executor.2  state:R  running task     stack:27080 pid:19789 ppid:5072   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x196c/0x4af0 kernel/sched/core.c:6695
 preempt_schedule_common+0x83/0xc0 kernel/sched/core.c:6864
 preempt_schedule+0xdd/0xf0 kernel/sched/core.c:6888
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x3a/0x40 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 zap_pte_range mm/memory.c:1525 [inline]
 zap_pmd_range mm/memory.c:1573 [inline]
 zap_pud_range mm/memory.c:1602 [inline]
 zap_p4d_range mm/memory.c:1623 [inline]
 unmap_page_range+0x292c/0x3320 mm/memory.c:1644
 unmap_vmas+0x2b8/0x460 mm/memory.c:1731
 exit_mmap+0x297/0xc50 mm/mmap.c:3210
 __mmput+0x115/0x3c0 kernel/fork.c:1349
 exit_mm+0x21f/0x300 kernel/exit.c:567
 do_exit+0x9af/0x2650 kernel/exit.c:861
 do_group_exit+0x206/0x2c0 kernel/exit.c:1024
 get_signal+0x175d/0x1840 kernel/signal.c:2892
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:309
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7faadb27cae9
RSP: 002b:00007faadbf21178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007faadb39bf88 RCX: 00007faadb27cae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007faadb39bf88
RBP: 00007faadb39bf80 R08: 00007faadbf216c0 R09: 00007faadbf216c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007faadb39bf8c
R13: 000000000000000b R14: 00007fffa995e440 R15: 00007fffa995e528
 </TASK>
task:syz-executor.1  state:R  running task     stack:27176 pid:19785 ppid:5067   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x196c/0x4af0 kernel/sched/core.c:6695
 preempt_schedule_common+0x83/0xc0 kernel/sched/core.c:6864
 preempt_schedule+0xdd/0xf0 kernel/sched/core.c:6888
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x3a/0x40 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 filemap_map_pages+0x120c/0x17f0 mm/filemap.c:3608
 do_fault_around mm/memory.c:4525 [inline]
 do_read_fault mm/memory.c:4558 [inline]
 do_fault mm/memory.c:4705 [inline]
 do_pte_missing mm/memory.c:3669 [inline]
 handle_pte_fault mm/memory.c:4978 [inline]
 __handle_mm_fault mm/memory.c:5119 [inline]
 handle_mm_fault+0x418a/0x62b0 mm/memory.c:5284
 do_user_addr_fault arch/x86/mm/fault.c:1364 [inline]
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x455/0x860 arch/x86/mm/fault.c:1561
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f0f26a35d18
RSP: 002b:00007ffe52defaf0 EFLAGS: 00010287
RAX: 00007ffe52defbf8 RBX: 00007f0f26a00000 RCX: 000000000017ed00
RDX: 00000000000000d1 RSI: 00007ffe52defad0 RDI: 7fffffffffffffff
RBP: 0000000000000001 R08: 0000000000000010 R09: 0000000000000000
R10: 00007ffe52df4080 R11: 000000000004bcca R12: 00007f0f26600000
R13: 00007f0f26a00000 R14: 00007f0f26600000 R15: 0000000000000001
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10505 jiffies! g99885 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=136421
rcu: rcu_preempt kthread starved for 10506 jiffies! g99885 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:25672 pid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x196c/0x4af0 kernel/sched/core.c:6695
 schedule+0xc3/0x180 kernel/sched/core.c:6771
 schedule_timeout+0x1bd/0x300 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x2c6/0x1010 kernel/rcu/tree.c:1613
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1812
 kthread+0x2d3/0x370 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 19787 Comm: syz-executor.3 Not tainted 6.6.0-rc4-syzkaller-00158-gf291209eca5e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:kasan_check_range+0x1b8/0x290 mm/kasan/generic.c:187
Code: 4d 01 fb 48 8d 5d 07 48 85 ed 48 0f 49 dd 48 83 e3 f8 48 29 dd 74 12 41 80 3b 00 0f 85 a2 00 00 00 49 ff c3 48 ff cd 75 ee 5b <41> 5c 41 5e 41 5f 5d c3 40 84 ed 75 5f f7 c5 00 ff 00 00 75 5c f7
RSP: 0018:ffffc900001f0d18 EFLAGS: 00000056
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff817d5d1d
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e9a7f68
RBP: 0000000000000000 R08: ffffffff8e9a7f6f R09: 1ffffffff1d34fed
R10: dffffc0000000000 R11: fffffbfff1d34fee R12: ffff8880b992b840
R13: ffff8880b992ba40 R14: dffffc0000000001 R15: fffffbfff1d34fee
FS:  00007f8c539b06c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001000 CR3: 000000002624e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 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:504 [inline]
 cpu_online include/linux/cpumask.h:1082 [inline]
 trace_hrtimer_cancel include/trace/events/timer.h:297 [inline]
 debug_deactivate+0x5d/0x1f0 kernel/time/hrtimer.c:484
 __run_hrtimer kernel/time/hrtimer.c:1656 [inline]
 __hrtimer_run_queues+0x321/0xd10 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline]
 __sysvec_apic_timer_interrupt+0x104/0x390 arch/x86/kernel/apic/apic.c:1080
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1074
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:console_flush_all+0x9bf/0xec0 kernel/printk/printk.c:2972
Code: 48 21 c3 0f 85 06 02 00 00 e8 cd 36 1d 00 48 8b 5c 24 28 4d 85 f6 75 07 e8 be 36 1d 00 eb 06 e8 b7 36 1d 00 fb 48 8b 44 24 78 <42> 0f b6 04 28 84 c0 0f 85 53 02 00 00 0f b6 1b 31 ff 89 de e8 28
RSP: 0018:ffffc900033bf560 EFLAGS: 00000283
RAX: 1ffff92000677ef8 RBX: ffffc900033bf7c0 RCX: 0000000000040000
RDX: ffffc9000ac34000 RSI: 0000000000002f8e RDI: 0000000000002f8f
RBP: ffffc900033bf710 R08: ffffffff8170d4d0 R09: 1ffffffff20df870
R10: dffffc0000000000 R11: fffffbfff20df871 R12: 0000000000000001
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffffff8da70858
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3035
 vprintk_emit+0x508/0x720 kernel/printk/printk.c:2307
 _printk+0xd5/0x120 kernel/printk/printk.c:2332
 ovl_mount_dir_noesc+0x136/0x190
 ovl_mount_dir fs/overlayfs/params.c:249 [inline]
 ovl_parse_param_upperdir fs/overlayfs/params.c:272 [inline]
 ovl_parse_param+0xa44/0x1c10 fs/overlayfs/params.c:579
 vfs_parse_fs_param+0x1a0/0x410 fs/fs_context.c:146
 vfs_parse_fs_string fs/fs_context.c:188 [inline]
 generic_parse_monolithic+0x2c8/0x3f0 fs/fs_context.c:228
 do_new_mount+0x263/0xae0 fs/namespace.c:3331
 do_mount fs/namespace.c:3675 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8c52c7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8c539b00c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8c52d9bf80 RCX: 00007f8c52c7cae9
RDX: 0000000020000280 RSI: 0000000020000240 RDI: 0000000000000000
RBP: 00007f8c52cc847a R08: 0000000020000080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8c52d9bf80 R15: 00007ffcb6e6b098
 </TASK>
watchdog: BUG: soft lockup - CPU#0 stuck for 226s! [syz-executor.5:19792]
Modules linked in:
irq event stamp: 411594
hardirqs last  enabled at (411593): [<ffffffff8ae0140a>] asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
hardirqs last disabled at (411594): [<ffffffff8ace69fe>] sysvec_apic_timer_interrupt+0xe/0xb0 arch/x86/kernel/apic/apic.c:1074
softirqs last  enabled at (411592): [<ffffffff8155c911>] invoke_softirq kernel/softirq.c:427 [inline]
softirqs last  enabled at (411592): [<ffffffff8155c911>] __irq_exit_rcu+0xf1/0x1b0 kernel/softirq.c:632
softirqs last disabled at (411557): [<ffffffff8155c911>] invoke_softirq kernel/softirq.c:427 [inline]
softirqs last disabled at (411557): [<ffffffff8155c911>] __irq_exit_rcu+0xf1/0x1b0 kernel/softirq.c:632
CPU: 0 PID: 19792 Comm: syz-executor.5 Not tainted 6.6.0-rc4-syzkaller-00158-gf291209eca5e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x36/0x60 kernel/kcov.c:207
Code: 00 ad 75 7e 65 8b 15 01 ad 75 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 04 16 00 00 00 74 2c 8b 91 e0 15 00 00 <83> fa 02 75 21 48 8b 91 e8 15 00 00 48 8b 32 48 8d 7e 01 8b 89 e4
RSP: 0018:ffffc9000341f3f8 EFLAGS: 00000246
RAX: ffffffff8182b62d RBX: 1ffff110173282cd RCX: ffff88803993d940
RDX: 0000000000000002 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000341f600 R08: ffffffff8182b5fc R09: 1ffffffff20df870
R10: dffffc0000000000 R11: fffffbfff20df871 R12: dffffc0000000000
R13: ffff8880b9941668 R14: ffff8880b983d440 R15: 0000000000000001
FS:  00007f3159ffe6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30421000 CR3: 00000000303ab000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 csd_lock_wait kernel/smp.c:300 [inline]
 smp_call_function_many_cond+0x181d/0x2890 kernel/smp.c:844
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1012
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1993 [inline]
 text_poke_bp_batch+0x350/0xb20 arch/x86/kernel/alternative.c:2203
 text_poke_bp+0xb0/0xf0 arch/x86/kernel/alternative.c:2430
 __static_call_transform+0x40d/0x660 arch/x86/kernel/static_call.c:111
 arch_static_call_transform+0x13f/0x380 arch/x86/kernel/static_call.c:163
 __static_call_update+0xd8/0x5d0 kernel/static_call_inline.c:147
 tracepoint_update_call kernel/tracepoint.c:317 [inline]
 tracepoint_add_func+0x90c/0x9d0 kernel/tracepoint.c:358
 tracepoint_probe_register_prio_may_exist+0x122/0x190 kernel/tracepoint.c:482
 bpf_raw_tp_link_attach+0x470/0x6d0 kernel/bpf/syscall.c:3626
 bpf_raw_tracepoint_open+0x199/0x210 kernel/bpf/syscall.c:3653
 __sys_bpf+0x36c/0x810 kernel/bpf/syscall.c:5377
 __do_sys_bpf kernel/bpf/syscall.c:5439 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5437 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5437
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f315b47cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3159ffe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f315b59bf80 RCX: 00007f315b47cae9
RDX: 0000000000000010 RSI: 0000000020000180 RDI: 0000000000000011
RBP: 00007f315b4c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f315b59bf80 R15: 00007ffd7ff7b288
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 19787 Comm: syz-executor.3 Not tainted 6.6.0-rc4-syzkaller-00158-gf291209eca5e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline]
RIP: 0010:rcu_is_watching+0x17/0xb0 kernel/rcu/tree.c:699
Code: ff ff e8 bc 04 58 09 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 41 57 41 56 53 65 ff 05 98 41 8d 7e e8 8b 1e 58 09 89 c3 <83> f8 08 73 76 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd 40 29 cb
RSP: 0018:ffffc900001f0b00 EFLAGS: 00000086
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff816cf124
RDX: 0000000000000000 RSI: ffffffff8b599cc0 RDI: ffffffff8b599c80
RBP: ffffc900001f0c68 R08: ffffffff8e9a7f6f R09: 1ffffffff1d34fed
R10: dffffc0000000000 R11: fffffbfff1d34fee R12: 1ffff9200003e16c
R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f8c539b06c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001000 CR3: 000000002624e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 trace_lock_acquire include/trace/events/lock.h:24 [inline]
 lock_acquire+0xe3/0x520 kernel/locking/lockdep.c:5724
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 advance_sched+0xae/0xcb0 net/sched/sch_taprio.c:935
 __run_hrtimer kernel/time/hrtimer.c:1688 [inline]
 __hrtimer_run_queues+0x59f/0xd10 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline]
 __sysvec_apic_timer_interrupt+0x104/0x390 arch/x86/kernel/apic/apic.c:1080
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1074
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:console_flush_all+0x9bf/0xec0 kernel/printk/printk.c:2972
Code: 48 21 c3 0f 85 06 02 00 00 e8 cd 36 1d 00 48 8b 5c 24 28 4d 85 f6 75 07 e8 be 36 1d 00 eb 06 e8 b7 36 1d 00 fb 48 8b 44 24 78 <42> 0f b6 04 28 84 c0 0f 85 53 02 00 00 0f b6 1b 31 ff 89 de e8 28
RSP: 0018:ffffc900033bf560 EFLAGS: 00000283
RAX: 1ffff92000677ef8 RBX: ffffc900033bf7c0 RCX: 0000000000040000
RDX: ffffc9000ac34000 RSI: 0000000000002f8e RDI: 0000000000002f8f
RBP: ffffc900033bf710 R08: ffffffff8170d4d0 R09: 1ffffffff20df870
R10: dffffc0000000000 R11: fffffbfff20df871 R12: 0000000000000001
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffffff8da70858
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3035
 vprintk_emit+0x508/0x720 kernel/printk/printk.c:2307
 _printk+0xd5/0x120 kernel/printk/printk.c:2332
 ovl_mount_dir_noesc+0x136/0x190
 ovl_mount_dir fs/overlayfs/params.c:249 [inline]
 ovl_parse_param_upperdir fs/overlayfs/params.c:272 [inline]
 ovl_parse_param+0xa44/0x1c10 fs/overlayfs/params.c:579
 vfs_parse_fs_param+0x1a0/0x410 fs/fs_context.c:146
 vfs_parse_fs_string fs/fs_context.c:188 [inline]
 generic_parse_monolithic+0x2c8/0x3f0 fs/fs_context.c:228
 do_new_mount+0x263/0xae0 fs/namespace.c:3331
 do_mount fs/namespace.c:3675 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8c52c7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8c539b00c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8c52d9bf80 RCX: 00007f8c52c7cae9
RDX: 0000000020000280 RSI: 0000000020000240 RDI: 0000000000000000
RBP: 00007f8c52cc847a R08: 0000000020000080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8c52d9bf80 R15: 00007ffcb6e6b098
 </TASK>