rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (0 ticks this GP) idle=fd9/1/0x4000000000000000 softirq=15591/15591 fqs=0 
	(detected by 0, t=10505 jiffies, g=22321, q=115)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4183 Comm: syz-executor Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__kasan_check_write+0x0/0x10 mm/kasan/shadow.c:37
Code: 8b eb 0a 48 c7 c7 4d 78 a1 8b 48 89 de e8 48 b3 d9 07 31 ed eb d7 00 00 cc cc 89 f6 48 8b 0c 24 31 d2 e9 43 ef ff ff 0f 1f 00 <89> f6 48 8b 0c 24 ba 01 00 00 00 e9 30 ef ff ff 55 41 56 53 48 89
RSP: 0018:ffffc90000dd0bb8 EFLAGS: 00000082
RAX: 00000000ffffffff RBX: ffff8880222eb2e8 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880222eb2e8
RBP: ffffc90000dd0c70 R08: dffffc0000000000 R09: fffffbfff1ff364a
R10: fffffbfff1ff364a R11: 1ffffffff1ff3649 R12: ffff8880222eb2f8
R13: ffff8880222eb2f0 R14: 1ffff1100445d65f R15: 1ffff1100445d65e
FS:  0000555570e2a500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1ae24c62d8 CR3: 0000000063786000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
 atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:511 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:82 [inline]
 do_raw_spin_lock+0x10e/0x280 kernel/locking/spinlock_debug.c:115
 spin_lock include/linux/spinlock.h:363 [inline]
 advance_sched+0x47/0x940 net/sched/sch_taprio.c:716
 __run_hrtimer kernel/time/hrtimer.c:1690 [inline]
 __hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1754
 hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1816
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:free_vmap_area_rb_augment_cb_compute_max mm/vmalloc.c:788 [inline]
RIP: 0010:free_vmap_area_rb_augment_cb_propagate mm/vmalloc.c:788 [inline]
RIP: 0010:augment_tree_propagate_from mm/vmalloc.c:1024 [inline]
RIP: 0010:adjust_va_to_fit_type mm/vmalloc.c:1410 [inline]
RIP: 0010:__alloc_vmap_area mm/vmalloc.c:1452 [inline]
RIP: 0010:alloc_vmap_area+0x178f/0x1b20 mm/vmalloc.c:1543
Code: 48 89 df e8 d3 4b 0b 00 4c 8b 3b 4c 89 ff 4c 89 e6 e8 95 d5 c5 ff 4d 39 e7 74 5a 48 b8 00 00 00 00 00 fc ff df 41 80 3c 06 00 <74> 08 48 89 df e8 27 4c 0b 00 4d 89 65 28 4c 89 e8 48 c1 e8 03 48
RSP: 0018:ffffc90002f9f0c0 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff88805f6a6278 RCX: ffff8880797c1dc0
RDX: 0000000000000000 RSI: 0000000000004000 RDI: 0000000000006000
RBP: ffffc90002f9f238 R08: ffff8880797c1dc0 R09: 0000000000000003
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000004000
R13: ffff88805f6a6250 R14: 1ffff1100bed4c4f R15: 0000000000006000
 __get_vm_area_node+0x14f/0x2d0 mm/vmalloc.c:2423
 __vmalloc_node_range+0xef/0x8b0 mm/vmalloc.c:3020
 __vmalloc_node mm/vmalloc.c:3080 [inline]
 vzalloc+0x75/0x80 mm/vmalloc.c:3150
 alloc_counters+0xd0/0x730 net/ipv4/netfilter/ip_tables.c:800
 copy_entries_to_user net/ipv4/netfilter/ip_tables.c:822 [inline]
 get_entries net/ipv4/netfilter/ip_tables.c:1023 [inline]
 do_ipt_get_ctl+0x9f7/0x1070 net/ipv4/netfilter/ip_tables.c:1669
 nf_getsockopt+0x25e/0x280 net/netfilter/nf_sockopt.c:116
 ip_getsockopt+0x115a/0x1590 net/ipv4/ip_sockglue.c:1797
 tcp_getsockopt+0x1f2/0x23f0 net/ipv4/tcp.c:4313
 __sys_getsockopt+0x206/0x430 net/socket.c:2247
 __do_sys_getsockopt net/socket.c:2262 [inline]
 __se_sys_getsockopt net/socket.c:2259 [inline]
 __x64_sys_getsockopt+0xb1/0xc0 net/socket.c:2259
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1ae22d866a
Code: ff c3 66 0f 1f 44 00 00 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb b8 0f 1f 44 00 00 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 a8 ff ff ff f7
RSP: 002b:00007ffe86ae5ef8 EFLAGS: 00000216 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007ffe86ae5f80 RCX: 00007f1ae22d866a
RDX: 0000000000000041 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007ffe86ae5f1c R09: 00007ffe86ae6337
R10: 00007ffe86ae5f80 R11: 0000000000000216 R12: 00007f1ae24c9e40
R13: 00007ffe86ae5f1c R14: 0000000000000000 R15: 00007f1ae24cc000
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10504 jiffies! g22321 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=12127
rcu: rcu_preempt kthread starved for 10505 jiffies! g22321 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:27904 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x11b8/0x43b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1e0 kernel/sched/core.c:6459
 schedule_timeout+0x15c/0x280 kernel/time/timer.c:1914
 rcu_gp_fqs_loop+0x29e/0x11b0 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0x98/0x350 kernel/rcu/tree.c:2145
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </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: 4183 Comm: syz-executor Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:mark_usage kernel/locking/lockdep.c:4485 [inline]
RIP: 0010:__lock_acquire+0xc2b/0x7c60 kernel/locking/lockdep.c:4966
Code: 00 00 00 4c 89 ef 4c 89 fe 31 d2 e8 5f a5 00 00 49 b8 00 00 00 00 00 fc ff df 85 c0 0f 84 cc 4d 00 00 48 8b 84 24 c0 00 00 00 <42> 0f b6 04 00 84 c0 0f 85 2e 61 00 00 48 8b 84 24 98 00 00 00 83
RSP: 0018:ffffc90000dd08c0 EFLAGS: 00000002
RAX: 1ffff1100f2f8512 RBX: ffff8880797c28a8 RCX: ffffffff815c9cb4
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8ff9b248
RBP: ffffc90000dd0b10 R08: dffffc0000000000 R09: fffffbfff1ff364a
R10: fffffbfff1ff364a R11: 1ffffffff1ff3649 R12: ffff8880797c2920
R13: ffff8880797c1dc0 R14: 0000000000000002 R15: ffff8880797c2900
FS:  0000555570e2a500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1ae24c62d8 CR3: 0000000063786000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:363 [inline]
 advance_sched+0x47/0x940 net/sched/sch_taprio.c:716
 __run_hrtimer kernel/time/hrtimer.c:1690 [inline]
 __hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1754
 hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1816
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:free_vmap_area_rb_augment_cb_compute_max mm/vmalloc.c:788 [inline]
RIP: 0010:free_vmap_area_rb_augment_cb_propagate mm/vmalloc.c:788 [inline]
RIP: 0010:augment_tree_propagate_from mm/vmalloc.c:1024 [inline]
RIP: 0010:adjust_va_to_fit_type mm/vmalloc.c:1410 [inline]
RIP: 0010:__alloc_vmap_area mm/vmalloc.c:1452 [inline]
RIP: 0010:alloc_vmap_area+0x178f/0x1b20 mm/vmalloc.c:1543
Code: 48 89 df e8 d3 4b 0b 00 4c 8b 3b 4c 89 ff 4c 89 e6 e8 95 d5 c5 ff 4d 39 e7 74 5a 48 b8 00 00 00 00 00 fc ff df 41 80 3c 06 00 <74> 08 48 89 df e8 27 4c 0b 00 4d 89 65 28 4c 89 e8 48 c1 e8 03 48
RSP: 0018:ffffc90002f9f0c0 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff88805f6a6278 RCX: ffff8880797c1dc0
RDX: 0000000000000000 RSI: 0000000000004000 RDI: 0000000000006000
RBP: ffffc90002f9f238 R08: ffff8880797c1dc0 R09: 0000000000000003
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000004000
R13: ffff88805f6a6250 R14: 1ffff1100bed4c4f R15: 0000000000006000
 __get_vm_area_node+0x14f/0x2d0 mm/vmalloc.c:2423
 __vmalloc_node_range+0xef/0x8b0 mm/vmalloc.c:3020
 __vmalloc_node mm/vmalloc.c:3080 [inline]
 vzalloc+0x75/0x80 mm/vmalloc.c:3150
 alloc_counters+0xd0/0x730 net/ipv4/netfilter/ip_tables.c:800
 copy_entries_to_user net/ipv4/netfilter/ip_tables.c:822 [inline]
 get_entries net/ipv4/netfilter/ip_tables.c:1023 [inline]
 do_ipt_get_ctl+0x9f7/0x1070 net/ipv4/netfilter/ip_tables.c:1669
 nf_getsockopt+0x25e/0x280 net/netfilter/nf_sockopt.c:116
 ip_getsockopt+0x115a/0x1590 net/ipv4/ip_sockglue.c:1797
 tcp_getsockopt+0x1f2/0x23f0 net/ipv4/tcp.c:4313
 __sys_getsockopt+0x206/0x430 net/socket.c:2247
 __do_sys_getsockopt net/socket.c:2262 [inline]
 __se_sys_getsockopt net/socket.c:2259 [inline]
 __x64_sys_getsockopt+0xb1/0xc0 net/socket.c:2259
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1ae22d866a
Code: ff c3 66 0f 1f 44 00 00 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb b8 0f 1f 44 00 00 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 a8 ff ff ff f7
RSP: 002b:00007ffe86ae5ef8 EFLAGS: 00000216 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007ffe86ae5f80 RCX: 00007f1ae22d866a
RDX: 0000000000000041 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007ffe86ae5f1c R09: 00007ffe86ae6337
R10: 00007ffe86ae5f80 R11: 0000000000000216 R12: 00007f1ae24c9e40
R13: 00007ffe86ae5f1c R14: 0000000000000000 R15: 00007f1ae24cc000
 </TASK>