rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=749c/0/0x1 softirq=47302/47305 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P12307/1:b..l
rcu: (detected by 0, t=10505 jiffies, g=43857, q=199 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-syzkaller-10689-g7af08b57bcb9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:rcu_lock_release include/linux/rcupdate.h:347 [inline]
RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:880 [inline]
RIP: 0010:advance_sched+0x6c4/0xc60 net/sched/sch_taprio.c:987
Code: 75 52 f8 48 8b 7c 24 20 e8 79 7e c7 ff e8 14 5f f3 01 31 ff 89 c3 89 c6 e8 59 77 52 f8 85 db 0f 85 d0 01 00 00 e8 0c 75 52 f8 <48> c7 c7 40 bb 1b 8e 48 8d 35 00 00 00 00 e8 e9 19 2f f8 e8 14 d5
RSP: 0018:ffffc90000a18d80 EFLAGS: 00000046
RAX: 0000000080010001 RBX: 0000000000000001 RCX: ffffffff893c5214
RDX: ffff88801d294880 RSI: ffffffff893c5034 RDI: 0000000000000001
RBP: ffff888012bc5c10 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002
R13: ffff888012bc5c00 R14: ffff88807a523340 R15: ffff888012bc6c00
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055559437e808 CR3: 0000000067ff0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__run_hrtimer kernel/time/hrtimer.c:1739 [inline]
__hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline]
RIP: 0010:acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 98 ff d3 74 48 8b 00 a8 08 75 0c 66 90 0f 00 2d 88 a3 ad 00 fb f4 c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900001a7d58 EFLAGS: 00000246
RAX: 0000000000004000 RBX: 0000000000000001 RCX: ffffffff8b2fbc99
RDX: 0000000000000001 RSI: ffff888141ace000 RDI: ffff888141ace064
RBP: ffff888141ace064 R08: 0000000000000001 R09: ffffed10170e6fed
R10: ffff8880b8737f6b R11: 0000000000000000 R12: ffff8881472cd000
R13: ffffffff8ee17b20 R14: 0000000000000001 R15: 0000000000000000
acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:699
cpuidle_enter_state+0xaa/0x4f0 drivers/cpuidle/cpuidle.c:268
cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:389
cpuidle_idle_call kernel/sched/idle.c:230 [inline]
do_idle+0x310/0x3f0 kernel/sched/idle.c:325
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:423
start_secondary+0x222/0x2b0 arch/x86/kernel/smpboot.c:314
common_startup_64+0x13e/0x148
task:syz.6.1602 state:R running task stack:28544 pid:12307 tgid:12306 ppid:6488 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7078
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire.part.0+0x155/0x380 kernel/locking/lockdep.c:5814
Code: b8 ff ff ff ff 65 0f c1 05 e0 10 97 7e 83 f8 01 0f 85 d0 01 00 00 9c 58 f6 c4 02 0f 85 e5 01 00 00 48 85 ed 0f 85 b6 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7
RSP: 0018:ffffc9000ba4f6a8 EFLAGS: 00000206
RAX: 0000000000000046 RBX: 1ffff92001749ed6 RCX: 00000000d5635161
RDX: 0000000000000001 RSI: ffffffff8b6ce300 RDI: ffffffff8bd1e5c0
RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff2dd0998
R10: ffffffff96e84cc7 R11: 0000000000000001 R12: 0000000000000000
R13: ffffffff8e1bbb40 R14: 0000000000000000 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
is_bpf_text_address+0x36/0x1a0 kernel/bpf/core.c:768
kernel_text_address kernel/extable.c:125 [inline]
kernel_text_address+0x8d/0x100 kernel/extable.c:94
__kernel_text_address+0xd/0x40 kernel/extable.c:79
unwind_get_return_address+0x59/0xa0 arch/x86/kernel/unwind_orc.c:369
arch_stack_walk+0xa7/0x100 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4283 [inline]
__kmalloc_noprof+0x21c/0x510 mm/slub.c:4295
kmalloc_noprof include/linux/slab.h:905 [inline]
tomoyo_realpath_from_path+0xb9/0x720 security/tomoyo/realpath.c:251
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_number_perm+0x248/0x590 security/tomoyo/file.c:723
security_file_ioctl+0x9b/0x240 security/security.c:2908
__do_sys_ioctl fs/ioctl.c:900 [inline]
__se_sys_ioctl fs/ioctl.c:892 [inline]
__x64_sys_ioctl+0xb7/0x200 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f209a58040b
RSP: 002b:00007f209b3fe060 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f209a58040b
RDX: 0000000000000000 RSI: 0000000000006364 RDI: 00000000000000d8
RBP: 00007f209a745fa0 R08: 00007ffe14339367 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f209a745fac
R13: 0000000000000001 R14: 00007ffe14339280 R15: 00007ffe14339368
rcu: rcu_preempt kthread starved for 10505 jiffies! g43857 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:27488 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2045
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2247
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 8024 Comm: syz-executor Not tainted 6.12.0-syzkaller-10689-g7af08b57bcb9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x45d/0x1300 kernel/smp.c:884
Code: 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 7a 0d 0c 00 f3 90 41 0f b6 04 24 <40> 38 c5 7c 08 84 c0 0f 85 a7 0c 00 00 8b 43 08 31 ff 83 e0 01 41
RSP: 0018:ffffc90003387990 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b8744a40 RCX: ffffffff8182b7ec
RDX: ffff888030cd2440 RSI: ffffffff8182b7c6 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed10170e8949
R13: 0000000000000001 R14: ffff8880b8744a48 R15: ffff8880b863fe40
FS: 00005555607da500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff2dc4ea255 CR3: 0000000067ff0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1051
__flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline]
flush_tlb_multi arch/x86/mm/tlb.c:938 [inline]
flush_tlb_mm_range+0x289/0x330 arch/x86/mm/tlb.c:1024
dup_mmap kernel/fork.c:779 [inline]
dup_mm kernel/fork.c:1695 [inline]
copy_mm kernel/fork.c:1744 [inline]
copy_process+0x72ec/0x8df0 kernel/fork.c:2395
kernel_clone+0xfd/0x960 kernel/fork.c:2807
__do_sys_clone+0xba/0x100 kernel/fork.c:2950
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f49c9577053
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffc00caa4e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f49c9577053
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 00005555607da7d0 R11: 0000000000000246 R12: 0000000000000000
R13: 00000000000a2689 R14: 00000000000a2126 R15: 00007ffc00caa670