rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9029/1:b..l P5614/1:b..l P9032/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=48545, q=582 ncpus=1)
task:syz.5.917 state:R running task stack:25656 pid:9032 tgid:9031 ppid:5616 task_flags:0x400040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5520 [inline]
__schedule+0x17db/0x58f0 kernel/sched/core.c:7270
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7592
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x910 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_release+0x2e1/0x3c0 kernel/locking/lockdep.c:5934
Code: 76 f1 11 00 00 00 00 eb b5 e8 1b f6 40 0a f7 c3 00 02 00 00 74 b9 65 48 8b 05 73 31 f1 11 48 3b 44 24 28 75 48 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 3b f2 6c ff cc 48 8d 3d 68 03 da
RSP: 0018:ffffc90004e7f710 EFLAGS: 00000282
RAX: 7c3628e76634d600 RBX: 0000000000000206 RCX: 0000000000000046
RDX: 000000004479afa4 RSI: ffffffff8e6fceb0 RDI: ffffffff8c6d9480
RBP: ffff88807ecfab18 R08: da00000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8ed5c6e0 R12: 0000000000000001
R13: 0000000000000001 R14: ffffffff8ed5c6e0 R15: ffff88807ecf9f40
rcu_lock_release include/linux/rcupdate.h:319 [inline]
rcu_read_unlock include/linux/rcupdate.h:880 [inline]
get_obj_cgroup_from_memcg mm/memcontrol.c:2994 [inline]
charge_memcg+0x10b/0x310 mm/memcontrol.c:5207
__mem_cgroup_charge+0x25/0x80 mm/memcontrol.c:5227
mem_cgroup_charge include/linux/memcontrol.h:662 [inline]
folio_prealloc mm/memory.c:1296 [inline]
alloc_anon_folio mm/memory.c:5387 [inline]
do_anonymous_page mm/memory.c:5482 [inline]
do_pte_missing+0x175b/0x34b0 mm/memory.c:4698
handle_pte_fault mm/memory.c:6558 [inline]
__handle_mm_fault mm/memory.c:6707 [inline]
handle_mm_fault+0x1a53/0x3750 mm/memory.c:6876
faultin_page mm/gup.c:1126 [inline]
__get_user_pages+0x1675/0x2750 mm/gup.c:1428
populate_vma_page_range+0x2be/0x3c0 mm/gup.c:1860
__mm_populate+0x25f/0x390 mm/gup.c:1963
mm_populate include/linux/mm.h:4288 [inline]
vm_mmap_pgoff+0x353/0x4e0 mm/util.c:586
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f161e39e159
RSP: 002b:00007f161f278028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f161e625fa0 RCX: 00007f161e39e159
RDX: 000000000000000f RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007f161e435024 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000004008032 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f161e626038 R14: 00007f161e625fa0 R15: 00007ffdbdac8488
task:syz-executor state:R running task stack:21816 pid:5614 tgid:5614 ppid:5611 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5520 [inline]
__schedule+0x17db/0x58f0 kernel/sched/core.c:7270
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7592
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x910 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__asan_memset+0x8/0x50 mm/kasan/shadow.c:83
Code: 00 e9 5c e5 ff ff 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 41 56 53 <48> 89 d3 89 f5 49 89 fe 48 8b 4c 24 18 48 89 d6 ba 01 00 00 00 e8
RSP: 0018:ffffc900039d6c80 EFLAGS: 00000246
RAX: ffffc900039d6e80 RBX: ffffc900039d6d98 RCX: 1ffff9200073ad01
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc900039d6d98
RBP: 1ffffffff222d166 R08: ffffc900039d6e80 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8ed5c6e0 R12: dffffc0000000000
R13: ffffffff91168b32 R14: ffffc900039d6d48 R15: ffffc900039d6d90
unwind_next_frame+0xd04/0x2550 arch/x86/kernel/unwind_orc.c:621
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
save_stack+0x122/0x230 mm/page_owner.c:183
__set_page_owner+0x8d/0x4c0 mm/page_owner.c:359
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
alloc_pages_bulk_mempolicy_noprof+0x356/0x16d0 mm/mempolicy.c:2794
vm_area_alloc_pages mm/vmalloc.c:3736 [inline]
__vmalloc_area_node mm/vmalloc.c:3914 [inline]
__vmalloc_node_range_noprof+0xa0a/0x1540 mm/vmalloc.c:4104
__vmalloc_node_noprof mm/vmalloc.c:4165 [inline]
vzalloc_noprof+0xb2/0xe0 mm/vmalloc.c:4243
alloc_counters+0x63/0x5d0 net/ipv4/netfilter/arp_tables.c:672
copy_entries_to_user net/ipv6/netfilter/ip6_tables.c:837 [inline]
get_entries net/ipv6/netfilter/ip6_tables.c:1037 [inline]
do_ip6t_get_ctl+0xb17/0x12f0 net/ipv6/netfilter/ip6_tables.c:1678
nf_getsockopt+0x26e/0x290 net/netfilter/nf_sockopt.c:116
ipv6_getsockopt+0x213/0x2c0 net/ipv6/ipv6_sockglue.c:1464
do_sock_getsockopt+0x51d/0x7e0 net/socket.c:2503
__sys_getsockopt net/socket.c:2534 [inline]
__do_sys_getsockopt net/socket.c:2541 [inline]
__se_sys_getsockopt net/socket.c:2538 [inline]
__x64_sys_getsockopt+0x1a4/0x240 net/socket.c:2538
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f97b939f92a
RSP: 002b:00007fffe71d76f8 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007fffe71d7780 RCX: 00007f97b939f92a
RDX: 0000000000000041 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007fffe71d771c R09: 0000000000000000
R10: 00007fffe71d7780 R11: 0000000000000212 R12: 00007f97b95ede00
R13: 00007fffe71d771c R14: 0000000000000000 R15: 00007f97b95effc0
task:syz.0.916 state:R running task stack:26888 pid:9029 tgid:9028 ppid:5618 task_flags:0x40044c flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5520 [inline]
__schedule+0x17db/0x58f0 kernel/sched/core.c:7270
preempt_schedule_common+0x7f/0xd0 kernel/sched/core.c:7449
preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:201 [inline]
_raw_spin_unlock+0x41/0x50 kernel/locking/spinlock.c:213
spin_unlock include/linux/spinlock.h:401 [inline]
zap_pte_range mm/memory.c:2095 [inline]
zap_pmd_range mm/memory.c:2151 [inline]
zap_pud_range mm/memory.c:2179 [inline]
zap_p4d_range mm/memory.c:2200 [inline]
__zap_vma_range+0x40e1/0x4f80 mm/memory.c:2240
unmap_vmas+0x390/0x550 mm/memory.c:2309
exit_mmap+0x293/0x9f0 mm/mmap.c:1315
__mmput+0x118/0x420 kernel/fork.c:1193
exit_mm+0x221/0x2d0 kernel/exit.c:614
do_exit+0x6cd/0x2360 kernel/exit.c:996
do_group_exit+0x22d/0x2f0 kernel/exit.c:1151
get_signal+0x121b/0x12c0 kernel/signal.c:3039
arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
exit_to_user_mode_loop+0x10e/0x770 kernel/entry/common.c:101
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:336 [inline]
do_syscall_64+0x328/0x520 arch/x86/entry/syscall_64.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa37d59e159
RSP: 002b:00007fa37e3f60e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fa37d825fa8 RCX: 00007fa37d59e159
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa37d825fa8
RBP: 00007fa37d825fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa37d826038 R14: 00007ffdc8d009a0 R15: 00007ffdc8d00a88
rcu: rcu_preempt kthread starved for 10502 jiffies! g48545 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->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:27496 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5520 [inline]
__schedule+0x17db/0x58f0 kernel/sched/core.c:7270
__schedule_loop kernel/sched/core.c:7347 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7362
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2122
rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2330
kthread+0x38b/0x480 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 9035 Comm: syz.4.918 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:220 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:229
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 1a 4d bc f5 48 89 df e8 d2 c4 bc f5 e8 cd 01 e9 f5 fb bf 01 00 00 00 82 de ad f5 65 48 8b 05 2a 81 ad 07 48 85 c0 74 07 5b e9 1a 42
RSP: 0018:ffffc90003a17d20 EFLAGS: 00000202
RAX: 0000000004be51d5 RBX: ffff88802c9b9bc0 RCX: 8000000000000001
RDX: 0000000000000000 RSI: ffffffff8e474cae RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff907a157f R09: 1ffffffff20f42af
R10: dffffc0000000000 R11: fffffbfff20f42b0 R12: 0000000000000000
R13: 0000000100000000 R14: ffff888030f0ddc0 R15: 0000000000000020
FS: 00007f66415f66c0(0000) GS:ffff888124cd8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b34b1cff8 CR3: 0000000029a4f000 CR4: 0000000000350ef0
Call Trace:
set_current_blocked kernel/signal.c:3211 [inline]
signal_delivered kernel/signal.c:3075 [inline]
signal_setup_done+0x187/0x310 kernel/signal.c:3087
handle_signal arch/x86/kernel/signal.c:312 [inline]
arch_do_signal_or_restart+0x4f4/0x860 arch/x86/kernel/signal.c:339
__exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
exit_to_user_mode_loop+0x10e/0x770 kernel/entry/common.c:101
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:336 [inline]
do_syscall_64+0x328/0x520 arch/x86/entry/syscall_64.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f66433bd6d0
Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d 4a 2c 07 00 e8 65 65 f9 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:00007f66415f5b38 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 00007f6643626098 RCX: 00007f664339e159
RDX: 00007f66415f5b40 RSI: 00007f66415f5c70 RDI: 0000000000000021
RBP: 00007f6643626090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6643626128 R14: 00007ffc25cc8fa0 R15: 00007ffc25cc9088