rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5695/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=9541, q=725 ncpus=2)
task:dhcpcd-run-hook state:R  running task     stack:23680 pid:5695  tgid:5695  ppid:4747   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x1796/0x49d0 kernel/sched/core.c:6745
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5758
Code: 2b 00 74 08 4c 89 f7 e8 0a 22 86 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc9000d5375a0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92001aa6ec0 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcacd00 RDI: ffffffff8c1f12c0
RBP: ffffc9000d5376e8 R08: ffffffff92f71587 R09: 1ffffffff25ee2b0
R10: dffffc0000000000 R11: fffffbfff25ee2b1 R12: 1ffff92001aa6ebc
R13: dffffc0000000000 R14: ffffc9000d537600 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 rcu_read_lock include/linux/rcupdate.h:781 [inline]
 mt_validate+0x1c5/0x4aa0 lib/maple_tree.c:7576
 validate_mm+0xe7/0x530 mm/mmap.c:288
 mmap_region+0x1a61/0x2090 mm/mmap.c:3000
 do_mmap+0x8ad/0xfa0 mm/mmap.c:1397
 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:573
 ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1443
 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: 0033:0x7f5be9dcfb74
RSP: 002b:00007fffc40a18e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fffc40a1928 RCX: 00007f5be9dcfb74
RDX: 0000000000000005 RSI: 000000000002c000 RDI: 00007f5be9aae000
RBP: 00007fffc40a1c80 R08: 0000000000000003 R09: 0000000000002000
R10: 0000000000000812 R11: 0000000000000246 R12: 00007f5be9dad570
R13: 00007fffc40a1d08 R14: 0000000000001fd8 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 10536 jiffies! g9541 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R  running task     stack:25584 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x1796/0x49d0 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2202
 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:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5694 Comm: syz-executor.1 Not tainted 6.10.0-rc4-syzkaller-00217-g35bb670d65fc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:addr_has_metadata mm/kasan/kasan.h:333 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:177 [inline]
RIP: 0010:kasan_check_range+0x24/0x290 mm/kasan/generic.c:189
Code: 90 90 90 90 90 90 66 0f 1f 00 55 41 57 41 56 41 54 53 b0 01 48 85 f6 0f 84 a0 01 00 00 4c 8d 04 37 49 39 f8 0f 82 56 02 00 00 <48> 89 fd 48 c1 ed 2f 81 fd fe ff 01 00 0f 86 43 02 00 00 48 89 fb
RSP: 0018:ffffc9000d547e90 EFLAGS: 00000012
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff819d894c
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fac1be8
RBP: ffffc9000d547f48 R08: ffffffff8fac1bf0 R09: 1ffffffff1f5837d
R10: dffffc0000000000 R11: fffffbfff1f5837e R12: ffff888060099e00
R13: 0000000000000000 R14: ffffc9000d547f58 R15: 00000000000000ca
FS:  00007fa6b3bd06c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffb11664f80 CR3: 0000000072b46000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 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:571 [inline]
 cpu_online include/linux/cpumask.h:1181 [inline]
 trace_irq_disable+0x2c/0x120 include/trace/events/preemptirq.h:36
 local_irq_disable_exit_to_user include/linux/entry-common.h:231 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:124 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x134/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa6b2ea4830
Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d da 99 04 00 e8 15 78 fa ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48
RSP: 002b:00007fa6b3bcfbb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 00007fa6b2fb4058 RCX: 00007fa6b2e7d0a9
RDX: 00007fa6b3bcfbc0 RSI: 00007fa6b3bcfcf0 RDI: 0000000000000021
RBP: 00007fa6b2fb4050 R08: 00007fa6b3bd06c0 R09: 00007fa6b3bd06c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa6b2fb405c
R13: 000000000000006e R14: 00007ffec9492cc0 R15: 00007ffec9492da8
 </TASK>