rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (2 GPs behind) idle=8064/1/0x4000000000000000 softirq=7179/7180 fqs=5
rcu: 	(detected by 1, t=10502 jiffies, g=6505, q=793 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4549 Comm: udevd Not tainted 6.10.0-rc4-syzkaller-00945-gf261aa15b2ca #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x86/0x290 mm/kasan/generic.c:189
Code: 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 48 01 dd 41 80 3b 00 <0f> 85 c9 01 00 00 49 ff c3 48 ff c5 75 ee e9 1e 01 00 00 45 89 dc
RSP: 0018:ffffc900000077c0 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffffffff25f6cb0 RCX: ffffffff8172715a
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff92fb6580
RBP: ffffffffffffffff R08: ffffffff92fb6587 R09: 1ffffffff25f6cb0
R10: dffffc0000000000 R11: fffffbfff25f6cb0 R12: 0000000000000001
R13: ffff888069ff3c00 R14: dffffc0000000001 R15: fffffbfff25f6cb1
FS:  00007f8c1eca6c80(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efebf4d1ef8 CR3: 000000006404a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 hlock_class kernel/locking/lockdep.c:228 [inline]
 check_wait_context kernel/locking/lockdep.c:4774 [inline]
 __lock_acquire+0x5ca/0x1fd0 kernel/locking/lockdep.c:5087
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
 debug_objects_fill_pool+0x9f/0x9b0 lib/debugobjects.c:614
 debug_object_activate+0x135/0x510 lib/debugobjects.c:704
 debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline]
 debug_activate kernel/time/hrtimer.c:478 [inline]
 enqueue_hrtimer+0x30/0x3c0 kernel/time/hrtimer.c:1085
 __run_hrtimer kernel/time/hrtimer.c:1704 [inline]
 __hrtimer_run_queues+0x6cb/0xd50 kernel/time/hrtimer.c:1751
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1813
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:206
Code: 8b 3d ac ed 45 0c 48 89 de 5b e9 e3 50 5a 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 80 d5 03 00 65 8b 15 50 b0 6d 7e f7 c2 00 01 ff 00
RSP: 0018:ffffc90003087d18 EFLAGS: 00000286
RAX: ffffffff820dfe66 RBX: 0000000000000000 RCX: ffff888069ff3c00
RDX: ffff888069ff3c00 RSI: 0000000000000000 RDI: 0000000000001000
RBP: ffffc90003087f00 R08: ffffffff820dfda8 R09: 0000000000000000
R10: ffffc90003087da0 R11: fffff52000610fc9 R12: ffffc90003087da0
R13: 00007ffe9cb073f8 R14: 00000000ffffff9c R15: 00007ffe9cb073f8
 vfs_fstatat+0xf6/0x190 fs/stat.c:292
 __do_sys_newfstatat fs/stat.c:468 [inline]
 __se_sys_newfstatat fs/stat.c:462 [inline]
 __x64_sys_newfstatat+0x125/0x1b0 fs/stat.c:462
 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: 0033:0x7f8c1ed7c5f4
Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8
RSP: 002b:00007ffe9cb06f58 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000563a3da8be10 RCX: 00007f8c1ed7c5f4
RDX: 00007ffe9cb06f68 RSI: 00007ffe9cb073f8 RDI: 00000000ffffff9c
RBP: 00007ffe9cb06ff8 R08: 0000000000000000 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe9cb073f8
R13: 00007ffe9cb06f68 R14: 0000563a3da6a910 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 10492 jiffies! g6505 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R  running task     stack:26448 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a20 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:
CPU: 1 PID: 5378 Comm: syz.4.55 Not tainted 6.10.0-rc4-syzkaller-00945-gf261aa15b2ca #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:__sanitizer_cov_trace_pc+0x46/0x70 kernel/kcov.c:212
Code: ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 1c 16 00 00 00 74 2c 8b 91 f8 15 00 00 83 fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 <48> 8d 7e 01 8b 89 fc 15 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2
RSP: 0018:ffffc9000929f3f8 EFLAGS: 00000246
RAX: ffffffff818a1fe8 RBX: 1ffff11017288c21 RCX: ffff888023bb3c00
RDX: ffffc9000bc9f000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000929f5e0 R08: ffffffff818a1fb7 R09: 1ffffffff25f6cb0
R10: dffffc0000000000 R11: fffffbfff25f6cb1 R12: dffffc0000000000
R13: ffff8880b9446108 R14: ffff8880b953f980 R15: 0000000000000000
FS:  00007f1dcd0f56c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32115ff8 CR3: 00000000229e4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 csd_lock_wait kernel/smp.c:311 [inline]
 smp_call_function_many_cond+0x1878/0x29d0 kernel/smp.c:855
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2069 [inline]
 text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2279
 text_poke_bp+0xb0/0x100 arch/x86/kernel/alternative.c:2506
 __static_call_transform+0x51a/0x810 arch/x86/kernel/static_call.c:111
 arch_static_call_transform+0x141/0x380 arch/x86/kernel/static_call.c:163
 __static_call_update+0xd8/0x5e0 kernel/static_call_inline.c:147
 tracepoint_update_call kernel/tracepoint.c:317 [inline]
 tracepoint_add_func+0x918/0x9e0 kernel/tracepoint.c:358
 tracepoint_probe_register_prio_may_exist+0x122/0x190 kernel/tracepoint.c:482
 bpf_raw_tp_link_attach+0x48b/0x6e0 kernel/bpf/syscall.c:3896
 bpf_raw_tracepoint_open+0x1c2/0x240 kernel/bpf/syscall.c:3927
 __sys_bpf+0x3c0/0x810 kernel/bpf/syscall.c:5752
 __do_sys_bpf kernel/bpf/syscall.c:5817 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5815 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5815
 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: 0033:0x7f1dcc375ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1dcd0f5048 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f1dcc504140 RCX: 00007f1dcc375ae9
RDX: 0000000000000010 RSI: 00000000200003c0 RDI: 0000000000000011
RBP: 00007f1dcc3f6756 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f1dcc504140 R15: 00007ffc39b0c4c8
 </TASK>