rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (0 ticks this GP) idle=a03c/1/0x4000000000000000 softirq=211586/211586 fqs=0
	(detected by 1, t=10502 jiffies, g=238245, q=128 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 18863 Comm: syz-executor.2 Not tainted 6.1.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:lock_is_held_type+0x128/0x190 kernel/locking/lockdep.c:5713
Code: 48 c7 c7 00 a3 0d 8b e8 76 14 00 00 b8 ff ff ff ff 65 0f c1 05 51 7c 57 75 83 f8 01 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 <f7> 04 24 00 02 00 00 75 46 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b
RSP: 0018:ffffc900000079d8 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000002 RCX: 0000000080010001
RDX: 0000000000000000 RSI: ffffffff8b0da300 RDI: ffffffff8b6b0ec0
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1d229de
R10: fffffbfff1d229de R11: 1ffffffff1d229dd R12: 0000000000000046
R13: ffff88803f008000 R14: 00000000ffffffff R15: ffffffff8d323da0
FS:  0000555556192400(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7e057abf84 CR3: 0000000029197000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lock_is_held include/linux/lockdep.h:283 [inline]
 rcu_read_lock_sched_held+0x89/0x130 kernel/rcu/update.c:125
 trace_lock_acquire+0x98/0x260 include/trace/events/lock.h:24
 lock_acquire+0xa5/0x400 kernel/locking/lockdep.c:5639
 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:304
 rcu_read_lock include/linux/rcupdate.h:738 [inline]
 advance_sched+0x67e/0x8c0 net/sched/sch_taprio.c:753
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x50b/0xa60 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x3a6/0xfd0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
 __sysvec_apic_timer_interrupt+0xf9/0x280 arch/x86/kernel/apic/apic.c:1113
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:check_region_inline mm/kasan/generic.c:175 [inline]
RIP: 0010:kasan_check_range+0x20/0x2e0 mm/kasan/generic.c:189
Code: cc cc cc cc cc cc cc cc cc cc 55 41 57 41 56 53 b0 01 48 85 f6 0f 84 ed 01 00 00 48 89 fd 48 01 f5 0f 82 82 02 00 00 48 89 fd <48> c1 ed 2f 81 fd ff ff 01 00 0f 82 6f 02 00 00 49 89 fb 49 c1 eb
RSP: 0018:ffffc900154c74f8 EFLAGS: 00000286
RAX: ffffffff8aa1bc01 RBX: 0000000000000001 RCX: ffffffff8aa1bc3e
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff923aee20
RBP: ffffffff923aee20 R08: ffffffff8aa1bbf1 R09: ffffffff8aa1bca2
R10: 0000000000000003 R11: ffff88803f008000 R12: ffff8880226bd880
R13: ffff888077939bd0 R14: ffff88807f42b418 R15: ffffc900154c7618
 instrument_atomic_read_write include/linux/instrumented.h:102 [inline]
 atomic_inc include/linux/atomic/atomic-instrumented.h:190 [inline]
 mt_validate_nulls lib/maple_tree.c:7094 [inline]
 mt_validate+0x534e/0x5db0 lib/maple_tree.c:7145
 validate_mm_mt+0x165/0x680 mm/mmap.c:296
 validate_mm+0x16e/0x3b0 mm/mmap.c:333
 __vma_adjust+0x1e43/0x21e0 mm/mmap.c:858
 __split_vma+0x36e/0x530
 mprotect_fixup+0x538/0x820 mm/mprotect.c:617
 do_mprotect_pkey+0x7fc/0xb20 mm/mprotect.c:792
 __do_sys_mprotect mm/mprotect.c:819 [inline]
 __se_sys_mprotect mm/mprotect.c:816 [inline]
 __x64_sys_mprotect+0x7c/0x90 mm/mprotect.c:816
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7e0568c297
Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffa0b7c3d8 EFLAGS: 00000206 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 0000000000021000 RCX: 00007f7e0568c297
RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007f7e06333000
RBP: 00007fffa0b7c4b0 R08: 00000000ffffffff R09: 00007f7e06352700
R10: 0000000000020022 R11: 0000000000000206 R12: 00007fffa0b7c5d0
R13: 00007f7e06352700 R14: 0000000000000000 R15: 0000000000022000
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g238245 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=99104
rcu: rcu_preempt kthread starved for 10502 jiffies! g238245 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
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:26552 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8fc/0xda0 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1935
 rcu_gp_fqs_loop+0x309/0x1070 kernel/rcu/tree.c:1660
 rcu_gp_kthread+0xa5/0x390 kernel/rcu/tree.c:1859
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 18863 Comm: syz-executor.2 Not tainted 6.1.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:lock_is_held_type+0x4e/0x190 kernel/locking/lockdep.c:5704
Code: 88 e6 03 00 0f 84 0d 01 00 00 65 8b 05 33 7d 57 75 85 c0 0f 85 fe 00 00 00 65 4c 8b 2c 25 40 6f 02 00 41 83 bd 4c 0a 00 00 00 <0f> 85 e7 00 00 00 41 89 f6 49 89 ff 48 c7 04 24 00 00 00 00 9c 8f
RSP: 0018:ffffc90000007c38 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff8880a5f90330 RCX: ffff88803f008000
RDX: 0000000080010001 RSI: 00000000ffffffff RDI: ffff8880a5f90300
RBP: 00000000ffffffff R08: ffffffff88d73965 R09: fffff52000000f80
R10: fffff52000000f81 R11: 1ffff92000000f80 R12: dffffc0000000000
R13: ffff88803f008000 R14: ffff8880a5f90000 R15: ffff888078dbb480
FS:  0000555556192400(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7e057abf84 CR3: 0000000029197000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lock_is_held include/linux/lockdep.h:283 [inline]
 advance_sched+0xf6/0x8c0 net/sched/sch_taprio.c:705
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x50b/0xa60 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x3a6/0xfd0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
 __sysvec_apic_timer_interrupt+0xf9/0x280 arch/x86/kernel/apic/apic.c:1113
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:check_region_inline mm/kasan/generic.c:175 [inline]
RIP: 0010:kasan_check_range+0x20/0x2e0 mm/kasan/generic.c:189
Code: cc cc cc cc cc cc cc cc cc cc 55 41 57 41 56 53 b0 01 48 85 f6 0f 84 ed 01 00 00 48 89 fd 48 01 f5 0f 82 82 02 00 00 48 89 fd <48> c1 ed 2f 81 fd ff ff 01 00 0f 82 6f 02 00 00 49 89 fb 49 c1 eb
RSP: 0018:ffffc900154c74f8 EFLAGS: 00000286
RAX: ffffffff8aa1bc01 RBX: 0000000000000001 RCX: ffffffff8aa1bc3e
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff923aee20
RBP: ffffffff923aee20 R08: ffffffff8aa1bbf1 R09: ffffffff8aa1bca2
R10: 0000000000000003 R11: ffff88803f008000 R12: ffff8880226bd880
R13: ffff888077939bd0 R14: ffff88807f42b418 R15: ffffc900154c7618
 instrument_atomic_read_write include/linux/instrumented.h:102 [inline]
 atomic_inc include/linux/atomic/atomic-instrumented.h:190 [inline]
 mt_validate_nulls lib/maple_tree.c:7094 [inline]
 mt_validate+0x534e/0x5db0 lib/maple_tree.c:7145
 validate_mm_mt+0x165/0x680 mm/mmap.c:296
 validate_mm+0x16e/0x3b0 mm/mmap.c:333
 __vma_adjust+0x1e43/0x21e0 mm/mmap.c:858
 __split_vma+0x36e/0x530
 mprotect_fixup+0x538/0x820 mm/mprotect.c:617
 do_mprotect_pkey+0x7fc/0xb20 mm/mprotect.c:792
 __do_sys_mprotect mm/mprotect.c:819 [inline]
 __se_sys_mprotect mm/mprotect.c:816 [inline]
 __x64_sys_mprotect+0x7c/0x90 mm/mprotect.c:816
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7e0568c297
Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffa0b7c3d8 EFLAGS: 00000206 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 0000000000021000 RCX: 00007f7e0568c297
RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007f7e06333000
RBP: 00007fffa0b7c4b0 R08: 00000000ffffffff R09: 00007f7e06352700
R10: 0000000000020022 R11: 0000000000000206 R12: 00007fffa0b7c5d0
R13: 00007f7e06352700 R14: 0000000000000000 R15: 0000000000022000
 </TASK>